Document:

MASTER DISTRIBUTORSHIP AGREEMENT

     This MASTER DISTRIBUTORSIHP  AGREEMENT  ("Agreement") is made effective as
of the 1st day of January,  1996, by and between ENVIROMETRICS PRODUCTS COMPANY,
a corporation organized and existing under the laws of South Carolina and having
its  principal  place of  business  at 1019  Bankton  Drive,  Charleston,  South
Carolina,  29406  (hereinafter  "Company"),  and  ZELLWEGER  ANALYTICS,  INC., a
company organized and existing under the laws of Texas, and its subsidiaries and
affiliates,  having its  principal  place of business at 405 Barclay  Boulevard,
Lincolnshire, Illinois, 60069 (hereinafter "Master Distributor").

     WHEREAS, Company develops,  manufactures,  markets and sells certain of the
Products as defined  below,  and desires to sell and market the  Products in the
Territory, as defined below, exclusively through Master Distributor; and

     WHEREAS,  Master Distributor desires to market and sell the Products in the
Territory and is or will become  knowledgeable of the market for the Products in
the Territory; and

     WHEREAS, Company and Master Distributor desire to enter into this Agreement
authorizing  Master  Distributor  to  promote,  market,  and  sell  Products  to
Sub-Distributors and Customers in the Territory;

     NOW, THEREFORE, in consideration of the foregoing,  the mutual promises set
forth  herein,  and other  good and  valuable  consideration,  the  receipt  and
sufficiency of which are hereby acknowledged,  the Parties hereto,  intending to
be legally bound, hereby agree as follows:

1. DEFINITIONS.

     1.1 The ACT Monitoring  Card System TM. The term "The ACT  Monitoring  Card
System TM means the  system  comprised  of the ACT Electronic  Reader  and the
Cards,  which system has been  developed and is currently  being  distributed by
Company as part of the Business of Company,  as listed and identified in Exhibit
1, attached hereto.

     1.2 ACT Electronic  Reader.  The term " ACT Electronic  Reader" means the
device  produced  by or on behalf of Company  to read the  Cards,  as more fully
described on Exhibit 1, attached hereto.

     1.3 Affiliate.  The term  "Affiliate"  means a person,  partnership,  joint
venture, company,  corporation,  limited liability company, or the functional or
substantial  equivalent of any of the foregoing  under the laws of any political
subdivision in the Territory,  who or which controls, or is controlled by, or is
under direct or indirect common control with, Master Distributor.

     1.4 Business of Company The term  "Business of Company" means the research,
design,  development,   manufacture,  sale,  distribution  and  service  of  air
monitoring  and other  environmental  testing  and  measuring  technologies  and
products, including, without limitation, the Products.

     1.5 Cards.  The term  "Cards"  means the passive,  calorimetric  dosimeters
developed by Company and (i) used with the ACT Electronic Reader to perform the
function of  quantitatively  measuring the presence of hazardous gases, and (ii)
those cards used for qualitative measurement of the presence of hazardous gases,
but which  are read  visually  rather  than  with a  reader,  all as listed  and
described in Exhibit 1, attached hereto.

     1.6 Competing Business.  The term "Competing  Business" means any person or
entity in the same business or  substantially  the same business as the Business
of Company.

     1.7 Competing  Product.  The term  "Competing  Product" means any good that
performs  substantially  the same  function(s)  as any of the  Cards;  provided,
however,  no product currently produced by Master Distributor shall be deemed to
be a "Competing Product" for purposes of this Agreement.

     1.8  Copyrights.   The  term  "Copyrights"  means  all  original  works  of
authorship   including  literary,   artistic,   pictorial,   graphic  and  other
intellectual  works owned or claimed by Company  which are  registered  with the
United States Copyright  Office or the copyright office of any nation,  state or
political  jurisdiction within the Territory,  are eligible to be so registered,
or are entitled to protection  by and under the  copyright  laws and treaties of
the United States or under the  equivalent  laws of the political  subdivisions,
nations and/or states within the Territory.

     1.9 Customer. The term "Customer" means any end-user of a Product.

     1.10  Intellectual  Property.  The term  "Intellectual  Property" means the
Copyrights,  Marks and Patents,  collectively or in combination,  as the context
suggests.

     1.11  Marketing and Sales Reports.  The term  "Marketing and Sales Reports"
means the reports to be developed by the Parties and by which Master Distributor
will submit to Company from time to time  relating to the  promotion,  manner of
distribution,  locations and  recipients of the Products.  Without  limiting the
foregoing,  the  Marketing  and Sales  Reports  initially  agreed by the Parties
include the Sales  Rollout  Plan Report,  attached  hereto as Exhibit 3, and the
Product Tracking Report, attached hereto as Exhibit 4.

     1.12 Marks. The term "Marks" means all trade names, word marks, trademarks,
service  marks  and  logos  or  designs  (including  any  trade  dress  that  is
susceptible  to  protection  under  the laws of the  United  States or any other
political  subdivision in the  Territory),  whether or not  registered  with the
United States Patent and Trademark Office or trademark office or registry of any
nation,  state or political  jurisdiction  within the Territory,  placed upon or
used in  connection  with the  Business  of Company  or the sale,  distribution,
promotion  and  marketing  of the  Products  or of any other  goods or  services
provided or  distributed  by Company from time to time,  and  includes,  without
limitation,  "ACT and design," "Air-Chem Technologies" and "The ACT Monitoring
Card System; provided, however, the term "Marks" shall not include the trademark
"MDA Scientific," which is owned by Master Distributor or its Affiliate.

     1.13 Parties.  The term "Parties" means  Envirometrics  Product Company and
Zellweger Analytics, Inc.

     1.14 Patents.  The term  "Patents"  means all  inventions or letters patent
owned or licensed by or on behalf of Company,  and which are registered with the
United States  Patent and  Trademark  Office or the patent office or registry in
any political subdivision,  nation or state in the Territory or are eligible for
registration  and/or other  protection under the laws and treaties of the United
States or of any other political subdivision, nation or state in the Territory.

     1.15  Products.  The  term  "Products"  means  and  includes  only  the ACT
Monitoring  Card System , the ACT Electronic  Reader and the Cards,  together
with  accessories sold in connection  therewith,  all as described in Exhibit 1,
attached hereto,  together with any enhancements to or upgrades of such Products
as may be developed by Company from time to time during the Initial Term.

     1.16  Product and Price List.  The term  "Product and Price List" means and
includes the list of initial prices for Products,  attached hereto as Exhibit 1,
as the same may be amended from time to time during the Term as provided herein.

     1.17 Purchase Order.  The term "Purchase  Order" means  Company's  standard
Purchase Order that must be used by Master  Distributor  when ordering  Products
hereunder,  the form of Purchase  Order  currently  being used by Company  being
attached hereto as Exhibit 5.

     1.18  Sub-Distributor.  The term  "Sub-Distributor"  means any distributor,
retail  dealer,  re-seller,  or  wholesaler  of any of the Products  (other than
Master Distributor itself), and including Affiliates of Master Distributor,  and
with whom Master Distributor contracts or otherwise agrees to distribute, market
or sell  some or all of the  Products  or to whom  Master  Distributor  provides
Products for such distribution.

     1.19  Term.  The term  "Term"  means the  Initial  Term of this  Agreement,
together with any Renewal Term (s) as provided herein.

     1.20 Territory. The term "Territory" means the world.

2. APPOINTMENT OF MASTER DISTRIBUTOR.

     2.1  Grant  of  Distribution  Rights.   Company  hereby  grants  to  Master
Distributor,   and   Master   Distributor   hereby   accepts,   the   exclusive,
non-assignable,   non-transferable   and  non-divisible  right  to  promote  and
distribute  the  Products  to  Sub-Distributors  and  Customers,  to the  extent
provided in this Agreement.

     2.2 No Partnership or Agency Relationship.  This Agreement does not create,
and shall  not be  construed  as  creating,  any  relationship  of  association,
partnership, agency, or employment between Company and the Master Distributor or
any Affiliate of either Party, and Master Distributor agrees that it is and will
conduct its business as an  independent  contractor  with respect to Company and
its Affiliates.  Master Distributor agrees not to assume,  create, or enter into
any  obligation,  agreement,  or  commitment  on behalf of or for the account of
Company or obligate Company or its Affiliates in any manner.  Master Distributor
is not  authorized  to accept any  service of  process  upon  Company or to hold
itself out as the agent of Company for any reason whatsoever.

     2.3 Sub-Distributor(s).  Master Distributor may appoint Sub-Distributors to
distribute Products in sub-territories of the Territory, at Master Distributor's
sole discretion;  provided, however, any Sub-Distributor(s)  appointed by Master
Distributor  (including,  without limitation,  Affiliates of Master Distributor)
shall agree in writing to abide, mutatis mutandis,  by each and every obligation
of Master Distributor under this Agreement, and Company shall be expressly named
as a third party  beneficiary  of each such  agreement for purposes of enforcing
its interests thereunder. Master Distributor agrees that it shall not appoint or
allow the appointment of any  sub-distributors of  Sub-Distributors  without the
prior written consent of Company.  Master  Distributor agrees to provide Company
with copies of the written  agreements  between it and  Sub-distributor(s)  upon
request by Company.

     2.4 No Set-Off,  The existence of any claim,  demand,  action,  or cause of
action by Master  Distributor,  any  Sub-Distributor,  or any  Customer  against
Company,  or any parent,  subsidiary,  affiliate,  officer,  employee,  agent or
director of Company, whether predicated upon this Agreement or otherwise,  shall
not  constitute  a defense  to the  enforcement  by Company of any of its rights
hereunder, and the dollar amount thereof may not be set-off against any sums due
from Master Distributor to Company under this Agreement,  any rule of law to the
contrary notwithstanding.

3 . OBLIGATIONS OF COMPANY.

     3.1 Duties of Company.  Company  agrees to do the  following in  connection
with the sale of the Products to Master  Distributor  and the performance of its
obligations hereunder:

     a. Supply of Products. Company agrees to use its best efforts to supply, or
to cause to be supplied,  to Master  Distributor,  at mutually  agreed  delivery
times and dates which Company will use its best efforts to meet,  those Products
duly ordered by Master  Distributor  pursuant to the Purchase  Order attached as
Exhibit 5 to this Agreement, but in no event shall Company be required to modify
any of the  Products  to meet the  requirements  of Master  Distributor,  of any
Sub-Distributor or Customer, or of any political subdivision of the Territory.

     b. List of  Purchasers.  Within ten (10) days of the date of  execution  of
this Agreement, Company will provide Master Distributor a list of all purchasers
of the Products prior to the date hereof.

     c. Technical Support.  Company will use its best efforts during the Term of
this Agreement to provide the following technical support in connection with the
sale of the Products hereunder, the details and implementation of which shall be
mutually agreed upon by the parties:
     i. Initial and periodic  training of Master  Distributor and duly appointed
Sub-Distributors;

     ii. Technical support literature,  including warranty information,  if any,
pertaining to the Products shipped;

     iii.  Toll-free  (800)  number  available  in the  United  States to Master
Distributor, Sub-Distributors and Customers;

     iv. Receive,  track and follow-up on Product complaints reported to Company
by Master Distributor,  Sub-Distributors  and Customers on a form to be mutually
agreed upon by Master  Distributor and Company,  and provide Master  Distributor
with reports of such activities within fifteen (15) days of the last day of each
calendar year quarter during the term of this Agreement;

     v. In  conjunction  with and with  the  assistance  and  advice  of  Master
Distributor,  present  one  (1)  user  seminar  per  year  on  the  Products  in
association  with and  during  the same  period of time as the  annual  American
Industrial Hygiene Conference and Exposition (AIHCE); and

     vi.  Develop  text  and  language  and  provide  camera-ready  artwork  for
production by Master Distributor of Technical Bulletins which Master Distributor
shall  maintain  and  update  as  and  when  reasonably   necessary  to  reflect
modifications in, usage of, or changes in the specifications,  warranties, laws,
or regulations pertaining to the Products.

     d.  Development of New Cards.  Company will use its best efforts to develop
new Cards for detecting  the presence of  additional  chemicals and which can be
used with The ACT  Monitoring  Card  System  TM,  and,  during  the Term of this
Agreement,   Company  agrees  to  make  available  for  distribution  by  Master
Distributor,  under the terms of this Agreement at prices mutually agreed by the
Parties, any such cards, which shall constitute  "Products" for purposes of this
Agreement.

     e. Coordination of Product Evaluations. Company will coordinate and monitor
Product evaluations and reporting activities by academia,  governmental agencies
and other groups,  except for routine  evaluations  by Customers  with regard to
purchasing decisions.

     f.  European CE Mark  Certification.  Company  will use its best efforts to
confirm its eligibility to use the CE Mark  certification  in the European Union
(ELD for the Products.

     3.2  Standard of  Performance.  Company  agrees to use its best  efforts to
perform  each of its duties and  obligations  described  in this  Agreement in a
commercially reasonable manner.

     3.3  Survival  of  Obligations.  The  duties and  obligations  set forth in
Section 3.1 shall survive the termination of this Agreement for any reason.

     3.4 No Solicitation of Employees. During the term of this Agreement and for
a  period  of one  (1)  year  following  termination,  for any  reason,  of this
Agreement, Company will not, either directly or indirectly, on its own behalf or
on behalf of  others,  solicit,  divert,  or hire away,  or attempt to  solicit,
divert, or hire away any person employed by Master  Distributor,  whether or not
such person is a full-time  or  part-time  employee of Master  Distributor,  and
whether or not such  employment  is  pursuant to a written  agreement,  is for a
determined period, or is at will.

4. WARRANTIES; REPAIRS AND REPLACEMENT

     4.1 Product  Warranties.  Products shall be provided to Master Distributor,
Sub-Distributors and Customers pursuant to the terms of this Agreement only with
the warranties (limited,  extended or otherwise), if any, then in use by Company
and  customarily  provided by Company in connection  with the sale of a specific
Product.  The current  warranties  to accompany the Products will be provided to
Master  Distributor  within  ten  (10)  days  following  the  execution  of this
Agreement by both Parties.

     4.2  No  Additional  or  Modified   Warranties  by  Master  Distributor  or
Sub-Distributors.  Master Distributor and Sub-Distributors shall give or make no
other or different warranties or representations as to quality, merchantibility,
fitness for a particular  use or purpose,  or any other features of the Products
other than those contained in the warranty (limited,  extended or otherwise), if
any,  given  by  Company  and  set  forth  in the  literature  accompanying  and
applicable to specific Products.

     4.3 New,  Additional,  or Amended Warranties by Company.  From time to time
during the term of this  Agreement,  Company may  provide to Master  Distributor
certain  warranty and product labeling  materials,  disclosure  literature,  and
directions  for the use and  availability  of such  materials and  literature as
required  by  applicable  law and  Company  policy  as  communicated  to  Master
Distributor.   Master  Distributor  shall  promptly,  diligently,  strictly  and
continuously  comply with the  instructions  for the use and availability of all
such materials and literature and with any instructions  and procedures  imposed
by law or promulgated by Company regarding the sale, safety, or recall of any of
the Products.

     4.4 Disclaimer of Warranties THE WARRANTIES  CONTAINED OR DESCRIBED IN THIS
SECTION 4 ARE MADE  EXPRESSLY  IN LIEU OF ANY AND ALL  WARRANTIES  EXPRESSED  OR
IMPLIED.  COMPANY DOES NOT WARRANT THAT THE PRODUCTS ARE OR WILL BE MERCHANTABLE
OR FIT FOR ANY  PARTICULAR  PURPOSE, EXCEPT AS EXPRESSLY  PROVIDED  HEREIN.  THE
LIABILITY  OF COMPANY IS SOLELY  LIMITED TO THE  REIMBURSEMENT  OF THE  PURCHASE
PRICE PAID FOR ANY PRODUCTS WHICH DO NOT CONFORM TO THE WARRANTIES HEREUNDER.

     4.5 Repair or  Replacement  of Products.  Company will, at its sole option,
repair or replace Products which contain defects  appearing or which develop (i)
under  proper use of the  Product,  (ii) within the period of time  specified by
Company  in the  literature  accompanying  Products  or  communicated  to Master
Distributor  at the time the  Products  have been  delivered,  and (iii)  result
solely from faulty  design,  materials or  workmanship;  provided,  however,  to
remain  eligible for such  warranty,  the allegedly  defective  Products must be
returned  to Company at Master  Distributor's  expense  within  thirty (30) days
(sixty (60) days for Products located outside of the United States) of discovery
of the alleged defect(s), but in any event before (30) days (sixty (60) days for
Products  located  outside of the United  States)  after the  expiration  of the
applicable  warranty period.  Master Distributor will assume charges for freight
both to and from  Company on warranty  and  non-warranty  work unless  otherwise
agreed  by the  parties  hereto.  Prior  to the  return  of any  such  allegedly
defective  Products,  Company  must assign such  Product to be returned a Return
Goods Authorization  ("RGA") number, under protocols  established by Company and
Master  Distributor.  Master  Distributor  shall  attach to each  Product  to be
returned a written  explanation  of the defect in such  Product,  along with the
assigned RGA number.

     4.6  Limitation  of  Liability.  In no event  shall  Company,  its  agents,
affiliates,  employees,  officers or directors be liable to Master  Distributor,
Sub-Distributors,  or Customers  for any special,  consequential  or  incidental
damages,  or for any claim,  loss,  or  damage,  whether  in  contract,  tort or
otherwise, arising from or relating to (i) any breach of warranty, (ii) the use,
performance,  or failure to function of any of the Products, or (iii) any repair
work performed or replacements  made in connection  therewith,  in excess of the
price paid to  Company  for such  Products.  Furthermore,  Company  shall not be
responsible for any claims,  causes of action,  or damages resulting from Master
Distributor or a Sub-Distributor giving erroneous, false or misleading technical
or  warranty  information  regarding  any  Products to any  Sub-Distributors  or
Customers, or by virtue of any modification or extension of any such warranties.

     4.7 Warranties to Master  Distributor.  The only warranty to be provided to
Master  Distributor  in  connection  with the  Products  is a warranty  that the
Products conform to their description on the Purchase Orders submitted by Master
Distributor to Company and to the technical  literature  submitted by Company to
Master Distributor.

5. OBLIGATIONS OF MASTER DISTRIBUTOR.

     5.1 Duties of Master Distributor. During the Term of this Agreement, and in
addition to  fulfilling  each of its other duties under this  Agreement,  Master
Distributor agrees and covenants to:

     a.   Advertising.   Advertise  and  promote  the  Products  in  appropriate
commercial  media;  provided,  however,  Master  Distributor  shall consult with
Company and receive prior written  approval of Company for all advertising  copy
or materials of any sort prior to publication or distribution of the same;

     b.   Sub-Distributor   and   Customer   Contact.   Identify   and   contact
Sub-Distributors  and  Customers  in  person,  by  telephone,  and using  direct
mailings,  and  advise  and  provide  Sub-Distributors  and  Customers  with the
specifications,   warranties  (if  any),  use,  functionality,  and  performance
characteristics  of the Products in strict accordance with any specifications or
warranties given by Company as provided in this Agreement;

     c. Records. Maintain reasonably detailed records and information concerning
all  Sub-Distributors  and  Customers,  and provide on the fifteenth  (15th) day
after the last day of each calendar year quarter the reports and  information on
the Marketing and Sales Reports;

     d. Reports.  Promptly provide Company with all periodic reports,  including
the Sales and Marketing Reports, pursuant to the terms of this Agreement;

     e.  Translations.  Translate,  prior to distribution of Products and at its
sole expense, all literature accompanying Products,  including any warranties or
specifications offered therein, into the language(s) customarily used or legally
required  to be used in the  political  subdivisions,  nations and states in the
Territory to and in which  Products will be sold or  distributed.  In connection
with such obligation, Master Distributor shall bear all liability for, and shall
indemnify  Company against,  any and all damages,  claims,  causes of action, or
loss of any kind arising out of, caused by, or related to improper,  incomplete,
false, or misleading translations;

     f.   Investigation  of  Laws  Governing   Warranties.   Ensure,   prior  to
distribution of Products and at its sole expense,  that (i) the  warranties,  if
any, offered with the Products carry the same effect and obligations for Company
under, and do not contravene, the laws and regulations of any nation or state in
the  Territory  in or to  which  Products  will be  distributed,  (ii) no  other
warranties  are imposed on or otherwise  created with respect to the Products by
the laws and  regulations  of the nations and states in the  Territory  in or to
which Products will be  distributed,  and (iii) provide  Company with notice and
the exact nature of any such  deficiencies  in or  additions  to the  warranties
proposed to be offered with the Products. Master Distributor agrees it shall not
distribute the Products  subject to such  deficiencies or additional  warranties
without the prior written approval of Company;

     g.  Certification and Labeling.  Ensure,  prior to distribution of Products
and at its sole  expense,  that the Products are properly  certified and labeled
for  distribution  according  to the  laws  and  regulations  of  all  political
subdivisions  or nations in the Territory in which Products will be distributed;
provided,   however,   that   necessary   modifications   to  Products  to  meet
certification  and  labeling  requirements  shall be made only at the expense of
Master Distributor and upon written approval by Company;

     h. European CE Mark  Certification.  Cooperate  with and assist  Company in
confirming  and/or  certifying that the Products meet the CE Mark  certification
requirements for sales of Products in the European Union;

     i. Notification of Defects. Notify Company promptly of any known defects or
other technical problems concerning the installation, use, or performance of the
Products  pursuant  to Section 4, and  provide on the  fifteenth  (I 5th) day of
after the last day of each calendar year quarter the Sales and Marketing Reports
and any other reports developed and mutually agreed upon by the Parties;

     j.  Notification of Evaluation.  Notify  Company,  prior to any discussion,
sales or other distribution of Products, of any contact with or from academia or
regulatory  agencies of any government in the Territory  (other than contacts or
sales  made to or with  either of them  solely as a  Customer),  and  obtain the
written consent of Company prior to selling or otherwise  providing  Products to
any entity  which  Master  Distributor  knows or should know  intends to publish
material or  information  which  describes or evaluates any of the Products,  or
parts thereof;

     k. Payment of Amounts  Due.  Promptly pay when due, all monies owed Company
pursuant to the terms of this Agreement;

     l. Intellectual Property Search. Conduct, prior to distribution of Products
and at its sole expense, a diligent search of the patent,  trademark,  copyright
and all other intellectual property records, whether such rights exist at common
law or by statute, in all nations and states within the Territory to or in which
the Products will be distributed,  except for the United States, to determine if
the  sale of the  Products  in  those  nations  or  states  would  infringe  any
proprietary  rights of third parties  therein,  and provide a copy of the search
results to Company;  and Master Distributor shall not distribute  Products in or
to those nations or states without the prior written approval of Company; and

     m. Notification of Infringement.  Promptly notify Company in writing of any
potential  (based on the search  described in the  preceding  paragraph  (1)) or
alleged  infringement of, or any alleged  infringement of the property rights of
another by, the  Products in any nation or state in the  Territory,  giving full
information in regard to such potential and/or alleged  infringement and any and
all legal  proceedings  or claims  which may have been or may be brought or made
relating to such alleged infringement; and Master Distributor shall not respond,
contest,  settle,  or otherwise  conduct such  proceeding  or handle such claims
without prior  consultation  with and written  approval  from Company,  unless a
response  is  necessary  to avoid  compromising  the  rights of  Company in such
proceedings or with regard to such claims.

     5.2  Limitations  on Activities of Master  Distributor.  During the Term of
this Agreement, Master Distributor agrees and covenants as follows:

     a. No  Competition.  During the term of this  Agreement and for a period of
two (2) years following termination,  for any reason, of this Agreement,  Master
Distributor  shall not, either  directly or indirectly,  on its own behalf or on
behalf of others,  engage in the  manufacture,  distribution,  or service of any
Competing  Products,  nor shall it assist,  engage in, or  represent a Competing
Business.

     b. No  Repackaging.  Master  Distributor  and  Sub-Distributors  shall  not
obfuscate,  modify or discard the packaging of, or repackage in any respect, the
Products.

     C. No Unauthorized  Advertising.  Master  Distributor and  Sub-Distributors
shall not advertise, market, or promote in any manner the Products without prior
consultation with and written approval of Company.

     5.3  Standard of  Performance.  Master  Distributor  agrees to use its best
efforts  to  perform  each  of its  duties  and  obligations  described  in this
Agreement  in a  commercially  reasonable  manner that  preserves  and  protects
Company's business reputation and Intellectual Property rights in the Territory.

     5.4 Survival of  Obligations.  The duties and obligations set forth in this
Section shall survive the termination of this Agreement for whatever reason.

     5.5 No Solicitation of Employees. During the term of this Agreement and for
a  period  of one  (1)  year  following  termination,  for any  reason,  of this
Agreement,  Master  Distributor will not, either directly or indirectly,  on its
own behalf or on behalf of others, solicit,  divert, or hire away, or attempt to
solicit,  divert, or hire away any person employed by Company at any time during
the Term,  whether or not such person is a full-time  or  part-time  employee of
Company,  and whether or not such employment is pursuant to a written agreement,
is for a determined period, or is at will.

6. PRICE AND PAYMENT.

     6.1 Price and  Payment.  Company  agrees to supply the  Products  to Master
Distributor  at the  prices  specified  in the Price  List;  provided,  however,
Company  may only modify the prices  reflected  on the Price List as provided in
Section  6.4,  below.  Master  Distributor  agrees to pay Company  for  Products
ordered hereunder as follows:

     a. Quarterly  Prepaid Purchase  Deposits.  Master  Distributor shall pay to
Company,  in cash or  immediately  available  funds,  on the  first  day of each
calendar  quarter  during  the Term of this  Agreement,  the full  amount of the
Quarterly Prepaid Purchase Deposit for that quarter as specified on the schedule
attached hereto as Exhibit 2 (each a "PPD" and collectively  the "PPDs"),  which
shall be credited by Company toward purchases of Products by Master  Distributor
upon actual shipment(s) of Products.  The PPDs for each of the calendar quarters
in 1997  shall be agreed and signed by the  Parties  on or before  December  15,
1996, and both parties covenant and agree to negotiate in good faith the amounts
of such  second-year  PPDS. The Parties further agree that the PPDs for the year
1997,  when  agreed and  incorporated  into a writing  signed by the  Parties as
provided  herein,  shall constitute an amendment to Exhibit 2 and a part thereof
for all purposes hereunder.

     b. Refunds of Quarterly PPD.  Within fifteen (15) days following the end of
each  calendar year during the Term,  Company shall provide a written  report to
Master  Distributor  of the  cost  and  amount  of  Product  ordered  by  Master
Distributor  hereunder  during such calendar year (the "Report  Year").  Company
agrees that, if the cost of Products  ordered by Master  Distributor  during the
Report Year is less than the total  amount of PPDs paid during the Report  Year,
Company will refund to Master  Distributor,  on or before January 30 of the year
next following the Report Year,  the amount of the  difference  between the PPDs
for such  year  and the  orders  for such  year,  less  the full  amount  of the
applicable PPD for the quarter first following the close of the Report Year. The
Parties agree that,  except as expressly  provided herein,  no amount of any PPD
shall be refunded by Company to Master Distributor.

     C. Additional  Orders.  For orders of Products  which,  during any calendar
quarter,  exceed in value the PPD for such quarter, Master Distributor shall pay
Company  pursuant  to  prices  set  forth  on the  then-current  Price  List for
Products.

     Reduction of Obligation  to Pay PPDS.  The Parties agree that the amount of
the PPD for a quarter  shall be  automatically  reduced by  twenty-five  percent
(25%) if Company is not certified to use the CE Mark  certification  during such
quarter;  provided,  however, the PPD for the first quarter of 1996 shall not be
so reduced unless Company shall fail to obtain the CE Mark  certification  prior
to March 1, 1996;  provided,  further as to any subsequent calendar quarter, the
PPD for any such quarter shall be paid in full for such quarter,  immediately in
arrears, if the CE Mark  certification,  although not certified at the beginning
of such quarter, is obtained by the close of the first month of such quarter.

     Termination for Late Payment. In the event Master Distributor shall, at any
time,  fail to pay when due any PPD or any  amounts  due to  Company  under this
Agreement, Company may terminate this Agreement.

     6.4 Price Changes.  Company shall have the right to change, at any time and
from time to time, the price(s) charged for Products during the Term;  provided,
however,  Company  agrees not to change such  prices  during the first year this
Agreement  is in  effect,  except to pass on to Master  Distributor  the  actual
increase  in the cost to  Company  for the  Products,  or for the  materials  or
sub-components to be included in Products, to be purchased by Master Distributor
(hereinafter,  a "Cost Increase").  Company agrees to provide Master Distributor
with ninety (90) days prior written notice of the effective date of any increase
in the prices charged for Products (the "Price Change Notice  Period").  In such
case, the purchase price of Products ordered under a Purchase Order and accepted
by Company (as  provided  herein)  prior to the  commencement  of a Price Change
Notice Period  requesting  delivery of all or a part of such Products during the
Price Change  Notice  Period shall be the purchase  price in effect prior to the
effective  date of such price  change for that  portion of the  Products  with a
requested  delivery date within the Price Change Notice  Period,  whether or not
delivered  prior to the  effective  date of the price  change,  and shall be the
price as changed for any such Products with a requested  delivery date after the
Price Change Notice Period.

7. PRODUCT ORDERS and DELIVERY.

     7.1 Orders.  Master  Distributor  shall order  Products  only on  Company's
then-current  Purchase  Order,  and no purchase terms other than as contained in
the Purchase Order or in this  Agreement  shall apply to the sale or purchase of
Products hereunder unless agreed in writing by the Parties.

     7.2 Quarterly Orders. Master Distributor shall provide Company, at the time
of payment of the Quarterly PPD, with completed  Purchase Orders for Products to
be delivered  during that quarter,  and the value of such orders  (calculated by
multiplying the quantity of Products  ordered by their respective price per item
listed on Exhibit 1) shall be  credited  against the PPD for such  quarter  upon
delivery to Master  Distributor  as provided  herein.  Orders during any quarter
which exceed in value the amount of the PPD  applicable to that quarter shall be
paid by Master  Distributor-  within  thirty days from the invoice date for such
Products,  and Master Distributor shall not be allowed to credit such additional
purchases  against  future PPDs unless  expressly  provided  herein or otherwise
agreed by Company in writing.

     7.3  Packing and  Packaging.  The  Products  shall be packed and shipped by
Company in accordance with Company's  standard packaging  procedures;  provided,
however,  the packaging of the Products may bear Master  Distributor's  name and
design(s) (as provided by Master  Distributor to Company in camera-ready  form),
so long as the same shall be mutually acceptable to the Parties.

     7.4 Acceptance of Orders.  All Product  Purchase Orders submitted by Master
Distributor  shall be  subject  to  acceptance  and  approval,  in writing or by
shipment of the Products ordered, by Company at its principal place of business.
Orders shall not be binding  until the earlier of such  acceptance  or shipment,
but only as to the portion of the Purchase Order actually shipped. Company shall
not be  liable  for  any  delays  in the  delivery  of the  products  to  Master
Distributor,  Sub-Distributors,  or Customers that result from Force Majeure (as
defined hereinbelow).

     7.5 Cancellation of Order. Product orders or portions of Product orders may
not be canceled by Master  Distributor  unless written notice of cancellation is
actually received by Company prior to initiation of the manufacturing process by
Company or shipment of ordered Products to Company by Company's supplier(s).

     7.6  Inspection  by Master  Distributor.  The Master  Distributor  shall be
obligated to inspect all Products  upon arrival at the first storage or delivery
point after the same are placed on Master Distributor's  carrier at the shipping
point,  and Master  Distributor  shall,  within ten (10) days of arrival at such
storage  or  delivery  point,  give  written  notice to Company of any claim for
non-conformity,  damages or shortages.  If Master Distributor fails to give such
notice or to obtain an extension in writing from Company prior to the expiration
of such ten (10) day period, the Products shall be deemed to be accepted.

     Modifications or  Substitutions.  Company reserves the right at any time to
make changes to the Products whenever Company  reasonably  believes such changes
will  facilitate the  performance  of the Products or represent  non-substantial
substitutions or modifications not adversely affecting such performance.

     Taxes and Other Charges.  Master  Distributor  agrees to pay, collect,  and
remit on the dates when they are due all value-added,  sales, use, property, and
other taxes,  duties, and assessments  imposed by any governmental agency in the
Territory in respect to the Products,  other than income or similar  withholding
taxes  imposed upon Company by any  governmental  agency of the  Territory,  and
Master  Distributor  agrees to indemnify and hold Company  harmless  against any
such  liabilities,  including  such fines and costs as may be  incurred  for the
failure to pay such taxes, duties, and assessments.

     7.9  Compliance  with  Export  and  Import  Laws and  Requirements.  Master
Distributor  agrees to comply fully with all applicable  export and import laws,
regulations,   and  orders  of  the  United  States  and  each  other  political
subdivision of the Territory and to adopt such policies and procedures as may be
required to comply with such laws, regulations, and orders.  Notwithstanding any
other provisions of this Agreement,  Master  Distributor agrees not to export or
allow trans-shipment or otherwise make the Products available to any third party
within the Territory if Master  Distributor  knows, or has reasonable grounds to
suspect,  that such third  party is planning to use or  otherwise  transfer  the
Products  in  violation  of such export  laws,  regulations,  or orders.  All of
Company's  obligations  under this  Agreement  shall be subject to the grant and
effectiveness  of  all  necessary  United  States  export   authorizations   and
approvals.

     7.10 Shipment and Risk of Loss. All Products to be sold hereunder  shall be
sold F.O.B. (as defined in the Uniform  Commercial Code,  Article 2, as in force
under the laws of the State of South Carolina)  Company's  docks,  and Company's
sole obligation as to such delivery shall be to make such Products  available to
a  carrier  designated  by  Master  Distributor.  Risk of loss for  Products  so
delivered  shall pass when they are  handled by the said  carrier in  connection
with such delivery.

     7.11 Title to the Products shall not pass to Master Distributor,  but shall
be retained by Company, until payment in full for the Products has been received
by Company from Master Distributor.

          Delivery.  Company  shall use its  reasonable  efforts to  accommodate
     Master  Distributor's  requests  to deliver  the  Products  on the  date(s)
     requested by Master Distributor; provided, however, and notwithstanding the
     foregoing or any other term of this  Agreement  or of the  Purchase  Order,
     Company reserves the right to make partial deliveries of Products from time
     to time prior to the requested  delivery date.  Each delivery which Company
     shall make of Products in response  to accepted  Purchase  Orders  shall be
     regarded  as a separate  contract  of sale and no one  default in  delivery
     shall be cause for  terminating  the  relationship of the Parties under the
     Agreement.

8. PROPRIETARY INFORMATION AND INTELLECTUAL PROPERTY.

          8.1 License, Confidentiality and Non-Disclosure Agreement. In order to
     protect the proprietary  information and intellectual  property of Company,
     Master   Distributor   and   Company   agree  to   execute   the   License,
     Confidentiality  and Non-Disclosure  Agreement attached hereto as Exhibit 6
     and expressly  incorporated  herein.  The termination of this Agreement for
     any reason  whatsoever  shall not affect,  alter or terminate  the License,
     Confidentiality  and  Non-Disclosure   Agreement  other  than  the  License
     contained therein whereby Master  Distributor may use certain Marks,  which
     shall automatically terminate along with this Agreement.

9. TERM AND TERMINATION

          9.1 Term of Agreement. The initial term of this Agreement shall be for
     a period of two (2) years  from the  effective  date of  execution  of this
     Agreement (the "Initial Term"); provided, however, this Agreement shall be
     automatically  renewed,  but only upon terms and  conditions to be mutually
     negotiated and agreed by the parties,  for an additional  period of two (2)
     years following the expiration of the Initial Term, unless (i) either party
     shall give to the other party written  notice of its intention to terminate
     this  Agreement  no fewer  than  thirty  (30) days  prior to the end of the
     Initial Term, 1-5, 1996,  this Agreement is earlier  terminated as provided
     herein.

          9.2  Termination  by Company.  Notwithstanding  the provisions of this
     Article,  Company may  terminate  this  Agreement  at any time by providing
     Master  Distributor  not less than fifteen (15) days prior  written  notice
     thereof,  and  thirty (3 0) days  opportunity  to cure the same,  after the
     occurrence of any of the following events:

          a. Failure to Pay.  Failure to pay any and all amounts due,  including
     without limitation, any Quarterly PPD;

          b.  Failure to Report.  Failure to  promptly  prepare  and  deliver to
     Company the reports to be provided pursuant to this Agreement;

          c. Insolvency.  Master Distributor, or its parent company, is declared
     or  acknowledges  that it is insolvent  or is  otherwise  unable to pay its
     debts as they become due;  upon the filing of any  proceeding by or against
     Master  Distributor,  whether  voluntary or  involuntary,  for  bankruptcy,
     insolvency,   relief   from   creditors,    arrangement,    reorganization,
     composition,   receivership  or  similar  relief  under  the  laws  of  any
     government  in the  Territory;  or upon the  appointment  of a receiver  or
     manager in respect to any part of Master Distributor's business;

          d. Sale of  Business.  Master  Distributor  enters into any  agreement
     relating to the acquisition of Master  Distributor of all or  substantially
     all of its assets by an  unaffiliated  third  party,  or a majority  of the
     equity interest in Master Distributor is sold or otherwise transferred to a
     third party which is not an Affiliate of Master Distributor;

          e. Assignment of Master Distributorship. Master Distributor assigns or
     transfers  this  Agreement  or any of its rights or  obligations  hereunder
     without Company's prior written consent; or

          f. Violation of Material  Provision.  Master Distributor  violates any
     other material  provision of this Agreement or of the  Confidentiality  and
     Non-Disclosure Agreement.

          g.  Failure to Agree.  The Parties  fail to reach  agreement as to the
     PPDs for the year 1997 on or before  December  15,  1996,  as  provided  in
     Section 6.l.a, above.

     9.3 Termination by Master  Distributor.  Notwithstanding  the provisions of
this Agreement,  Master  Distributor may terminate this Agreement at any time by
providing  Company not less than fifteen (I 5) days prior written notice thereof
and thirty  (30) days  opportunity  to cure the same (and  provided  that Master
Distributor  is not then in breach of this  Agreement),  after the occurrence of
any of the following events:

     a. Failure to Deliver  Products.  Subject to the other terms and conditions
of this Agreement  concerning delivery of Products,  if Company fails to deliver
Products ordered by Master  Distributor  within sixty (60) days of acceptance of
the Purchase Order for the same by Company.

     b. If Company is declared or  acknowledges  in writing that it is insolvent
or I otherwise  unable to pay its debts as they  become due;  upon the filing of
any proceeding,  whether voluntary or involuntary,  for bankruptcy,  insolvency,
relief from creditors, arrangement, reorganization, composition, receivership or
similar  relief  under  federal  or state  laws;  or upon the  appointment  of a
receiver or manager in respect to any part of its business;

     c. Violation of Material Provision. Company violates any material provision
of this Agreement,  which is not cured within a reasonable  period of time after
written notice from Master Distributor to Company.

     d. Failure to Agree The Parties fail to reach  agreement as to the PPDs for
the year 1997 on or before  December  15,  1996,  as provided in Section  6.1.a,
above.

     9.4 Actions Following  Termination.  Upon termination of this Agreement for
any reason,  the Parties  agree to continue  cooperating  with each other and to
carry out an orderly termination of their relations, as follows:

     a. Master  Distributor's  Agreement.  Master Distributor  agrees, not later
than  ten  (10)  days  following  the  effective  date of such  termination,  to
immediately provide Company with all outstanding Sales and Marketing Reports and
payments  due  hereunder,  to  immediately  cease  continued  marketing  of  the
Products,  and to return  to  Company  all  Products,  Proprietary  Information,
Intellectual Property, promotional or other materials, and all other information
of Company,  proprietary  or otherwise,  in Master  Distributor's  possession or
under  its or its  Affiliates'  control;  provided,  however,  any  Product  not
repurchased  by  Company  hereunder  upon  termination  may be  sold  by  Master
Distributor  pursuant  to the terms of this  Agreement,  so long as  Company  is
provided a reasonable time to determine whether to repurchase such Products.

     b.  Company's  Actions.  Company agrees to allow the return of any Products
delivered  to Master  Distributor  and for  which  Master  Distributor  has paid
Company,  so  long  as the  said  Products  to be  returned  represent  Products
purchased  in  excess  of the  value  of  the  aggregate  PPDs  paid  by  Master
Distributor up until the time of  termination;  and in such event Company agrees
to promptly refund to Master  Distributor  (less costs of shipping and handling)
the amounts  actually  paid by Master  Distributor  to Company for such returned
Products,  so long as the same  are  returned  by  Master  Distributor  in their
original  packaging,  unaltered,  unused,  and with no fewer than six (6) months
remaining until the date of expiration printed on the Product packaging.

     9.5 Refunds and Restocking Charges:

     a. Restocking- Charges.  Upon termination of this Agreement for any reason,
Master  Distributor agrees to pay to Company a restocking charge equal to twenty
percent  (20%) of the value of (i) any Product in  Company's  inventory  that is
packaged using Master Distributor's name or Marks, and (ii) any Product returned
by Master Distributor under Section 9.4.b. In connection therewith,  the Parties
agree that the restocking charge described above (A) represents a sum reasonably
calculated to cover the cost to Company of repackaging  and restocking  affected
units of Product for sale by Company,  and not a penalty or liquidated  damages,
(B) shall be based upon the actual  cost to Master  Distributor  of  Products as
determined by the then current Price List,  (C) shall be paid  immediately  upon
calculation  by Company and may be deducted by Company  from and set off against
any sums due to Master  Distributor  from Company under this Agreement,  and (D)
shall be due to Company in  addition to any other  sums,  if any,  due by Master
Distributor to Company at the time such charge is assessed.

     b.  Refunds of Quarterly  PPD Upon  Termination.  Within  fifteen (15) days
following the  termination  of this  Agreement,  Company shall provide a written
report to Master Distributor of the cost and amount of Product ordered by Master
Distributor  hereunder during the calendar year in which such termination  takes
effect (the " Termination  Report  Year").  Company  agrees that, if the cost of
Products  ordered by Master  Distributor  during the Termination  Report Year is
less than the total  amount of PPDs paid  during the  Termination  Report  Year,
Company will refund to Master  Distributor,  within thirty (30) days thereafter,
the amount of the  difference  between the PPDs for such year and the orders for
such year, less any applicable Restocking Charges.

     9.6 Continuing Obligation.  No termination of this Agreement for any reason
whatsoever shall affect the continuing  obligations of Master  Distributor under
any provisions of this Agreement  relating to indemnification of Company for the
proprietary  or  confidential  nature  of the  information  provided  to  Master
Distributor by Company or under the License,  Confidentiality and Non-Disclosure
Agreement.  The  Parties  agree  that  the  provisions  of  this  Paragraph  are
reasonable  and  necessary  to  protect  the  interest  of  Company  and  Master
Distributor.

     9.7 Liability on Termination Company shall not have any liability to Master
Distributor solely by reason of the termination of this Agreement including, but
not  limited  to, any  liability  or  obligation,  statutory  or  otherwise,  to
compensate or reimburse Master Distributor for any indemnity, claims, or damages
whatsoever  including,  but not limited to,  claims  relating to lost revenue or
lost profits or reimbursement of any expenditures,  investments,  leasehold,  or
employment  obligations,  or other continuing commitments incurred by such party
in the performance of its duties or obligations  hereunder.  Master  Distributor
hereby expressly waives all indemnities,  compensations,  and similar claims, to
which it might otherwise be entitled under applicable law of any nation or state
in the Territory, agrees to indemnify and hold Company, its officers, directors,
agents  and   employees,   harmless  from  and  against  all  claims  of  Master
Distributor's officers, employees, agents and Sub-Distributors for compensation,
commissions,  severance,  social security, or other similar payments, and agrees
to  withdraw  promptly  as  the  registered  distributor  of  Company  from  the
commercial  registry in each jurisdiction within the Territory and agrees not to
so register thereafter.

10. INDEMNIFICATION

     10.1 Indemnification by Master Distributor. Without limiting any other duty
of  indemnification  contained in this Agreement,  Master  Distributor agrees to
indemnify  and  hold  harmless  Company  and its  Affiliates,  and any of  their
officers, employees, directors and agents, from and against any and all damages,
claims, liabilities, costs, and expenses, including attorney's fees, arising out
of (i) any  misrepresentations by Master Distributor or  Sub-Distributor(s)  and
their  respective  officers,  agents or employees,  (ii) any violation by Master
Distributor  or  Sub-Distributor(s)  of any of the material  provisions  of this
Agreement,  (iii) any  wrongful or  intentional  act or omissions on the part of
Master Distributor or Sub-Distributor(s)  and their respective officers,  agents
or  employees,  or (iv) any  action  based on the  infringement  of any  patent,
trademark or copyright in any jurisdiction within the Territory.

     10.2  Indemnification  by Company.  Company  agrees to  indemnify  and hold
harmless  Master  Distributor  and its  Affiliates,  and any of their  officers,
agents  directors and employees,  from and against any and all damages,  claims,
liabilities,  costs, and expenses with respect to (i) any  misrepresentations by
Company or its officers,  agents or employees with respect to the Products, (ii)
any violation by Company of any of the material provisions of this Agreement.

GENERAL PROVISIONS.

     11.1 Complete  Agreement/Incorporation  of Exhibits.  This  Agreement  sets
forth the entire  understanding  between the Parties  hereto with respect to the
subject  matter hereof.  All Exhibits to this  Agreement  referred to herein are
incorporated by reference.  This Agreement  merges all previous  discussions and
negotiations  between the Parties or the named  Guarantors of this Agreement and
supersedes  and  replaces any and every other  agreement  which may have existed
between Company and Master Distributor,  including the Letter of Intent executed
on or about December 12, 1995, the Non-Disclosure and Confidentiality  Agreement
executed  on or about  September  1,  1994,  and the  Confidentiality  Agreement
executed  on or about  October  11,  1995,  by and  between  Company  and Master
Distributor.

     11.2  Modification  or  Amendment.  Any  modification  or  amendment of any
provision of this  Agreement  must be in writing and bear the  signatures of the
duly authorized  representative of both Parties and both Guarantors,  unless any
such modification is expressly permitted to be made by one of the Parties.

     11.3 No Implied  Waivers.  Failure of either Party to exercise any right or
option that is granted herein,  or to require the performance by the other Party
hereto of any provision of this Agreement,  or the waiver by either party of any
breach of this Agreement, shall not prevent a subsequent exercise or enforcement
of such provision or be deemed a waiver of any subsequent  breach of the same or
any other provision of the Agreement.

     11.4  Assignability.  Master Distributor shall not sell, assign,  transfer,
convey,  delegate,  or encumber  its duties and  obligations  hereunder,  or any
rights or  interest  hereunder,  and shall not  suffer or permit  any  voluntary
assignment or transfer or encumbrance thereof, by operation of law or otherwise,
without the prior  written  consent of Company.  Company  reserves  the right to
assign this Assignment or any of its duties,  obligations,  rights,  or interest
hereunder to any direct or indirect subsidiary or Affiliate of Company.

     Notice.   All   notices,   requests,   reports,   submissions,   and  other
communications  permitted or required to be given under this Agreement  shall be
in the English  language  and shall be deemed to be duly given if such notice or
communication  shall be in writing and received by the Parties at the  following
addresses  until such time as either  Party  hereto  shall given the other party
written notice of a change of address in accordance with the provisions hereof.

         If to Company:

                         Envirometrics Products Company
                    Attn.: Walter H. Elliott, III, President
                              10 1 9 Bankton Drive
                        Charleston, South Carolina 29406
                             Facsimile: 803-740-1721

         With a copy to:

                  Timothy D. Scrantom, Esquire
                  Ten State Street, LLP
                  10 State Street
                  Charleston, SC 29401
                  Facsimile: 803-937-4310

         If to Master Distributor:

                            Zellweger Analytics, Inc.
             Attn.: Mr. Jon McAlear, President 405 Barclay Boulevard
                             Lincolnshire, IL 60069
                                   Facsimile:

     Conformity  With Local  Laws.  The rights and  obligations  of the  Parties
hereunder are subject to all applicable  laws,  orders,  and  regulations of the
various  governmental  authorities having  jurisdiction over the Parties. In the
event that any of the foregoing  shall result in a modification or alteration of
this Agreement,  either Party hereto may request that this Agreement be modified
with respect  thereto,  to the mutual  satisfaction  of the Parties  hereto,  or
either party may, in its sole discretion, terminate this Agreement.

     Compliance  with  Foreign  Corrupt  Practices  Act and Boycott  Laws Master
Distributor  agrees to comply fully with all applicable laws,  regulations,  and
orders  promulgated  by  the  United  States  pursuant  to the  Foreign  Corrupt
Practices   Act,  any  United  States   Boycott  Laws,  and  the  United  States
Anti-Boycott  Laws,  as the same may be amended from time to time,  and to adopt
such  policies  and  procedures  as may be  required  to comply  with such laws,
regulations, and orders. Notwithstanding any other provisions of this Agreement,
Master Distributor agrees not to export or otherwise make the Products available
to any third party if Master  Distributor  knows,  or has reasonable  grounds to
suspect, that such third party has conducted, is conducting, or will conduct its
business in the  Territory  in  violation  of the laws,  regulations,  or orders
promulgated by the United States pursuant to the Foreign  Corrupt  Practices Act
or other applicable United States laws.

     Governing Law: Jurisdiction and Venue. This agreement shall be governed and
construed in accordance  with the laws of the State of South Carolina and of the
United  States,  including any  applicable  treaties or conventions to which the
United States is a party, but excepting any South Carolina or United States rule
which would result in the  application of the law of a  jurisdiction  other than
the State of South Carolina;  provided, however, that any and all disputes under
this Agreement are expressly  submitted to arbitration as described in paragraph
II. II below in  reliance on 9 U.S.C.  Sections  1-14,  as amended  from time to
time,  and in reliance on  enforcement  of any  arbitral  award  pursuant to the
Convention on Recognition and Enforcement of Foreign  Arbitration Awards of June
10, 1958, as codified at 9 U.S.C. Sections 201-208.

Arbitration

     a. Location Rules:  Binding  Decision.  Without limiting the application of
any dispute settlement  provisions contained in the Exhibits hereto, the Parties
agree that all disputes,  controversies  or differences  which may arise between
the parties out of or in relation to or in connection  with this Agreement shall
be finally settled by arbitration to be held in Atlanta, Georgia, United States,
in accordance with the Rules of the American Arbitration Association,  New York,
New York,  United States,  before a single  arbitrator  appointed by the Parties
from among the members of the  National  Panel of  Arbitrators  of the  American
Arbitration  Association.  If the Parties  are unable to agree on an  arbitrator
within thirty (30) days  following  receipt of a notice to submit to arbitration
sent as  provided  in this  Agreement,  the  Parties  expressly  agree that such
arbitrator shall be chosen by the Chief Judge of the U.S. Federal District Court
for the  Northern  District  of  Georgia,  Atlanta  Division.  To the extent not
inconsistent with the Rules of the American Arbitration Association,  the United
States federal rules of civil  procedure  shall apply to such  proceedings.  The
determinations  of such arbitrator will be final and binding upon the parties to
this  Agreement,  and judgment upon the award  rendered by the arbitrator may be
entered in any court having  jurisdiction  and  application  may be made to such
court for a judicial acceptance of the award and an order of enforcement, as the
case may be.  Each Party shall bear its own costs of the  arbitration  and shall
equally bear the costs of the arbitrator.

     b. Stipulation of Submission.  The parties hereto stipulate that submission
of disputes to  arbitration  as provided in  sub-paragraph  11.11(a)  hereof and
arbitration pursuant thereto shall be a condition precedent to any suit, action,
or proceeding instituted in any court or before any administrative tribunal with
respect to this Agreement. The arbitration provisions hereof shall, with respect
to any  controversy  or  dispute  arising  out of this  Agreement,  survive  the
termination or expiration of this Agreement.

     11.10  Force  Majeure.  The Parties  hereto  shall be not be liable for any
failure to perform any of their duties and  obligations  under this Agreement if
such  failure is caused by the  occurrence  of any event  beyond the  reasonable
control of such party, including,  without limitation,  fire, flood, strikes and
other  industrial  disputes,  failure of raw  material  suppliers  or  equipment
manufacturers,  accidents, wars, riots, insurrections, acts of God, or orders of
any  government  department or agency;  provided,  however,  performance  by the
affected Party shall only be suspended (a) for such time as the unforeseen event
prevents  performance of the party's duties and obligations  hereunder and, upon
cessation  of  the  unforeseen  event,  the  party  shall   immediately   resume
performance  under  this  Agreement,   or  (b)  for  six  (6)  months  from  the
commencement  of the  unforeseen  event  after  which  this  Agreement  shall be
terminated and the Parties shall have the obligations set forth in Article 9.

     11.11 Severability.  If any provision of this Agreement is determined to be
in violation of any applicable law or otherwise invalid or un-enforceable,  such
provision shall, to such extent as it shall be determined to be legal,  invalid,
or  un-enforceable  under such law, be deemed null and void,  but this Agreement
shall otherwise remain in full force and effect.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed by their duly authorized  representatives  as of the day and year first
written above.

                          MASTER DISTRIBUTOR:  ZELLWEGER
                                 ANALYTICS, INC.

                                       By:

                                      Its:
ATTEST:

Corporate Secretary
                    COMPANY: ENVIROMETRICS PRODUCTS COMPANY

                                       By:
                       Walter H. Elliott, III, President
ATTEST:

Corporate Secretary

<PAGE>
<TABLE>
<CAPTION>

                                    Exhibit I
                          Air Chem Technologies (ACTTM)
                             Product and Price List
<S>               <C>        <C>                     <C>        <C>             <C>                 <C>

                                                     Units Per     Suggested    Master Distributor  Master Distributor
Product           Catalog    Type                    Package    User List Price  Discount %             Cost
-------           -------    ----                    -------    --------------- ----------              ----

Formaldehyde      403202100  Qualitative PEL 8hr          20          180.00/box       25/25          101.25
                  403202101  Quantitative PEL 8hr         10          300.00/box       25/25          168.75
                  403202102  Quantitative STEL 15min      10          300.00/box       25/25          168.75
                  403202105  Qualitative PEL 8 hr          5           80.00/box       25/25           45.00
Hydrogen Sulfide  403202200  Qualitative STEL 15 min      20          180.00/box       25/25          101.25
                  403202201  Quantitative PEL 8hr         10          300.00/box       25/25          168.75
                  403202202  Quantitative STEL 15 min     10          300.00/box       25/25          168.75
                  403202205  Qualitative PEL 8hr           5           80.00/box       25/25           45.00
Glutaraldehyde    403202300  Qualitative PEL 8hr          20          180.00/box       25/25          101.25
                  403202305  Qualitative PEL 8 hr          5           80.00/box       25/25           45.00
Ammonia           403202400  Qualitative STEL 15 min      20          180.00/box       25/25          101.25
                  403202402  Quantitative STEL 15 min     10          300.00/box       25/25          168.75
                  403202405  Qualitative STEL 15 min       5           80.00/box       25/25           45.00
Carbon Monoxide   403202500  Qualitative Ceiling 15 min   20          180.00/box       25/25          101.25
                  403202501  Quantitative PEL 8 hr        10          300.00/box       25/25          168.75
                  403202502  Quantitative Ceiling 15 min  10          300.00/box       25/25          168.75
                  403202505  Qualitative Ceiling 15 min    5           80.00/box       25/25           45.00
Ethylene Oxide    403202601  Quantitative PEL 8 hr        10          300.00/box       25/25          168.75
                  403202602  Quantitative Ceiling 15 min  10          300.00/box       25/25          168.75
Chlorine          403202700  Qualitative STEL 15 min      20          180.00/box       25/25          101.25
                  403202701  Quantitative PEL 8 hr        10          300.00/box       25/25          168.75
                  403202702  Quantitative STEL 15 min     10          300.00/box       25/25          168.75
                  403202704  Qualitative PEL 8 hr         20          180.00/box       25/25          101.25
                  403202705  Qualitative STEL 15 min       5           80.00/box       25/25           45.00
                  403202706  Qualitative PEL 8 hr          5           80.00/box       25/25           45.00
Sulfur Dioxide    403202900  Qualitative STEL 15 min      20          180.00/box       25/25          101.25
                  403202901  Quantitative PEL 8 hr        10          300.00/box       25/25          168.75
                  403202902  Quantitative STEL 15 min     10          300.00/box       25/25          168.75
                  403202904  Qualitative PEL 8 hr         20          180.00/box       25/25          101.25
                  403202905  Qualitative STEL 15 min       5           80.00/box       25/25           45.00
                  403202906  Qualitative PEL 8 hr          5           80.00/box       25/25           45.00
Nitrogen Dioxide  403203100  Qualitative STEL 15 min      20          180.00/box       25/25          101.25
                  403203101  Quantitative PEL 8 hr        10          300.00/box       25/25          168.75
                  403203102  Quantitative STEL 15 min     10          300.00/box       25/25          168.75
                  403203105  Qualitative STEL 15 min       5           80.00/box       25/25           45.00
Methyl Ethyl Keton403203201  Quantitative PEL 8 hr        10          300.00/box       25/25          168.75
ACT Electronic    403215000  Includes charger, software             12000.00ea         25/25         1125.00
   Reader                      and Data Cables
ACT Field Case    401910303                                1          200.00 ea        25/25          125.50
ACT Starter Kit   403201600  Includes 50 record sheets,    1           20.00ea         25/25           11.25
                             5 collar clips, 1 permanent marker
ACT Collar Clips  403204001                                5            5.00/pack      25/25            2.81
</TABLE>

                                                    EXHIBIT 2

                                     1996 Quarterly Prepaid Purchase Deposits

                                    1996 QUARTER            QUARTERLY DEPOSIT

                                    1                           $101,250.00

                                    2                           $135,000.00

                                    3                           $202,500.00

                                    4                           $236,250.00

                                   EXHIBIT 3

                                 SALES ACTIVITY

                             U.S. SALES BY TERRITORY
                                       AND
                         INTERNATIONAL SALES BY COUNTRY

SALES REPS/COUNTRY   PRESENTATIONS    DEMOS    EVALUATIONS     SALES

                                   EXHIBIT 3

                                PRODUCT TRACKING

                           U.S. & INTERNATIONAL SALES

SALES REPS/COUNTRY  PRESENTATIONS     DEMOS   EVALUATIONS      SALES

 STATE OF SOUTH CAROLINA

COUNTY OF CHARLESTON

           LICENSE, CONFIDENTIALITY AND NON-DISCLOSURE AGREEMENT

     THIS  AGREEMENT (the  "Agreement')  is effective as of the 1st' of January,
1996, by and between ENVIROMETRICS PRODUCTS COMPANY, a corporation organized and
existing  under the laws of South  Carolina  and having its  principal  place of
business at 1019 Bankton Drive,  Charleston,  South Carolina, 29406 (hereinafter
the "Company"),  and ZELLWEGER ANALYTICS, INC., a company organized and existing
under  the laws of  Texas,  and its  subsidiaries  and  affiliates,  having  its
principal place of business at 405 Barclay  Boulevard,  Lincolnshire,  Illinois,
60069 (hereinafter the "Master Distributor").

     WHEREAS,  the Company is engaged in the Business of the Company  throughout
the  United  States  and,  in the course of such  activities,  has  acquired  or
developed  certain  Trade  Secrets,  Confidential  Information  and  Proprietary
Information (as such terms are  hereinafter  defined) not generally known in the
Company's industry or otherwise;

     WHEREAS,  such Trade  Secrets,  Confidential  Information  and  Proprietary
Information provide the Company with a competitive  advantage in the marketplace
in which it competes;

     WHEREAS,  the Company and Master  Distributor  have  entered  into a Master
Distributorship Agreement, dated as of the date hereof, pursuant to which Master
Distributor  will promote,  market,  and sell Products to  Sub-Distributors  and
Customers  in the  Territory,  as is more  particularly  defined  in the  Master
Distributorship Agreement

     WHEREAS,  as a  result  of  the  execution  of the  Master  Distributorship
Agreement,  Master  Distributor  is  in  a  position  involving  the  trust  and
confidence of the Company and will receive access to the Companys Trade Secrets,
Confidential  Information and Proprietary  Information,  and, through the use of
Company facilities or resources,  may develop,  or contribute to the development
of,   additional  Trade  Secrets,   Confidential   Information  and  Proprietary
Information; and

     WHEREAS,  the  Company  and  Master  Distributor  are  entering  into  this
Agreement  in  order  to  protect  the  Company's  Trade  Secrets,  Confidential
Information and Proprietary Information.

     NOW   THEREFORE,   in   consideration   of  the  execution  of  the  Master
Distributorship Agreement, the mutual agreements contained herein and other good
and  valuable  consideration,  the receipt and  sufficiency  of which are hereby
acknowledged, the parties hereto do hereby agree as follows:

1. Definitions.

          (a) The ACT  Monitoring  Card System TM. The term "The ACT  Monitoring
     Card System TM means the system  composed of the ACT Electronic  Reader and
     the  Cards,  which  system  has  been  developed  and  is  currently  being
     distributed by the Company as part of the Business of Company.

          (b)  ACT Electronic Reader. The term "ACT Electronic Reader" means the
device produced by or on behalf of the Company to read the Cards.

          (c)  Business of Company.  The term  "Business  of Company"  means the
     research,  design,  development,  manufacture,  sale  and  service  of  air
     monitoring  and other  environmental  testing  technologies  and  products,
     including the Products.

          (d) Cards.  The term "Cards" means the cards  developed by the Company
     and  used  by  the  ACT  Electronic  Reader  to  perform  the  function  of
     quantitatively measuring elements present in the atmosphere,  and the cards
     used for qualitative measurement which are read visually.

          (e) Competing Business. 'Me term "Competing Business" means any person
     or entity in the same  business or  substantially  the same business as the
     Business of Company.

          (f) Competing  Product.  The term  "Competing  Product" means any good
     that performs substantially the same functions as either of the Cards.

          (g)  Confidential  Information.  The term  "Confidential  Information'
     means any and all data and information  relating to the business  conducted
     by the Company (whether constituting a Trade Secret or not) which is or has
     been disclosed to Master  Distributor or of which Master Distributor became
     aware as a  consequence  of or through his  relationship  with  Company and
     which  has  value  to  the  Company  and  is  not  generally  known  by its
     competitors;   provided,   however,   no   information   will   be   deemed
     "confidential"  unless  such  information  is  treated  by the  Company  as
     confidential.  Confidential  Information  shall  not  include  any  data or
     information  that has  been  voluntarily  disclosed  to the  public  by the
     Company  (except  where  such  public  disclosure  has been  made by Master
     Distributor or any other person or entity without  authorization),  or that
     has been independently developed and disclosed by others (except where such
     independent  development and disclosure has been made by Master Distributor
     or any other person or entity  without  authorization),  or that  otherwise
     enters the public domain through lawful means.

          (h)  Copyrights.  The term  "Copyrights"  means all original  works of
     authorship  including  literary,  artistic,  pictorial,  graphic  and other
     intellectual  works  owned or claimed by the Company  which are  registered
     with the United  States  Copyright  Office or the  copyright  office of any
     nation, state or political jurisdiction within the Territory,  are eligible
     to be so  registered,  or are entitled to  protection by and under the laws
     and treaties of the United States or the substantial equivalent laws of any
     political subdivision, nation and/or state within the Territory.

          i)  Customer.  The term  "Customer"  means any  end-user  of a Product
     "Intellectual   Property".  The  term  "Intellectual  Property"  means  the
     Copyrights,  Marks and  Patents,  collectively  or in  combination,  as the
     context suggests.

          (k)  Marks.  The term  "Marks"  means all  trade  names,  word  marks,
     trademarks, service marks and logos or designs (including any @e dress that
     is  susceptible  to  protection  under the laws of the United States or any
     other political  subdivision in the  Territory),  whether or not registered
     with the United States Patent and Trademark  Office or trademark  office or
     registry  of  any  nation,  state  or  political  jurisdiction  within  the
     Territory,  placed upon or used in connection  with the Business of Company
     or the sale,  distribution,  promotion and marketing of the Products or any
     other goods or  services  provided or  distributed  by Company,  including,
     without limitation,  "ACT and design," "Air-Chem  Technologies W" and "The
     ACT Monitoring Card System TM",  together with any and all other marks that
     may be developed  for use or are used in  connection  with the marketing or
     distribution  of the  Products or any other  goods or services  provided or
     distributed  by Company;  provided,  however,  the term  "Marks"  shall not
     include the trademarks and, which are owned by Master Distributor.

          (1) Master Distributorship  Agreement The term "Master Distributorship
     Agreement"  means that certain  Agreement by and between Company and Master
     Distributor dated as of the 1st day of January, 1996.

          (m) Patents. The term "Patents" means all inventions or letters patent
     owned or obtained by or on behalf of Company, and which are registered with
     the United  States  Patent  and  Trademark  Office or the patent  office or
     registry in any political subdivision,  nation or state in the Territory or
     are eligible for  registration  and/or other  protection under the laws and
     treaties of the United States or of any other political subdivision, nation
     or state in the Territory.

          (n) Products.  The term "Products"  means and includes the Products to
     be distributed by the Master  Distributor under the Master  Distributorship
     Agreement.

          (o)  Proprietary  Information.  The term  "Proprietary  Information"
     means  all of the  following  materials  and  information,  whether  or not
     patentable or protected or protectable, by copyright or equivalent design,
     registration  law or regulation existing from time to time with any part of
     the Territory, to which Master Distributor has received access or which
     Master Distributor  receives,  develops,  or has developed,  in whole or in
     part,  as a direct or  indirect  result of  performing  this  Agreement  or
     through the use of any of Company's facilities or resources:

               (i)  Production  processes,   quality  control  processes  and/or
          procedures,  marketing  techniques,  purchasing  information,  pricing
          policies,  quoting procedures,  financial information,  customer names
          and  requirements,  customer data and other  materials or  information
          relating to the manner in which Company does business;

               (ii) Discoveries, concepts and ideas, and the embodiment thereof,
          whether or not  patentable or subject to protection by a copyright,  I
          including,  without limitation, the nature and results of research and
          development   activities,    processes,   formulas,   techniques   and
          "know-how";

               (iii) Any other materials or information  related to the business
          or  activities  of  Company  which are not  generally  known to others
          engaged in similar business or activities;

               (iv) Trade Secrets, Confidential Information or other proprietary
          information  which  Company has acquired or may in the future  acquire
          from  any  third  party,  including,  without  limitation,   operating
          principles,   documentation,   drawings,   programs  and   performance
          specifications and results,  provided to Company by such third parties
          pursuant to agreements,  understandings and/or  acknowledgments to the
          effect  that  such  trade  secrets  and  confidential  or  proprietary
          information  provided to Company by such third  parties  (collectively
          "Third Party  Confidential  Information")  is the  proprietary  and/or
          confidential  information of such respective  third party and is to be
          treated by Company as if such  Third  Party  Confidential  Information
          were Company's Confidential Information.

     (p) Territory. The term "Territory" means the world.

     (q) Trade Secrets.  The term "Trade Secrets" means the whole or any portion
or phase of any data or information  developed,  owned, or licensed from a third
party by the Company,  including  any formula,  pattern,  compilation,  program,
device, method, technique, improvement, or process that:

          (i) derives independent economic value, actual or potential,  from not
     being  generally  known to,  and not being  readily  ascertainable  through
     proper  means by,  other  persons  who can obtain  economic  value from its
     disclosure or use, and

          (ii)  is  the  subject  of  efforts  that  are  reasonable  under  the
     circumstances to maintain its secrecy.

          Trade Secrets shall not include any data or  information  (i) that has
     been voluntarily disclosed to the public by Company or has become generally
     known to the public (except when such public disclosure has been made by or
     through  Master  Distributor,  or by a third  person  or  entity  with  the
     knowledge of Master Distributor,  without authorization from Company); (ii)
     that has been  independently  developed and disclosed by parties other than
     Master   Distributor  or  Company,   the  public  generally  or  to  Master
     Distributor  without a breach of obligation of  confidentiality by any such
     parties running directly or indirectly to Company;  or (iii) that otherwise
     enters the public domain through lawful means.

2. Term.  The term of this  Agreement  shall commence on the 1st day of January,
1996,  and shall end on the  termination of the Master  Distribution  Agreement,
except where a different date of termination or survival is herein specified.

3.  Exclusive-Ownership  by Company.  Master Distributor agrees and acknowledges
that all  Proprietary  Information,  Intellectual  Property,  Trade  Secrets and
Confidential  Information,  and any and all  embodiments  thereof  (herein,  the
"Property"),  is and shall  remain at all times the  exclusive  property  of and
owned by the Company,  and that Master  Distributor's  performance of its duties
and obligations and its use or awareness of the Property during the term of this
Agreement or the Master Distributorship Agreement shall create no rights, at law
or in equity,  under the laws and  decisions  of any nation or state  within the
Territory,  in  Master  Distributor  in or to the  Property,  or any  aspect  or
embodiment  thereof.  Master  Distributor  further  agrees not to copy,  reverse
engineer,  disassemble,  decompile  or  otherwise  reproduce  any Product or its
equivalent, in whole or in part.

4.  Non-Disclosure  of Trade Secrets.  Master  Distributor shall not, during the
term of this Agreement and the Master Distributorship  Agreement, and at any and
all times following termination, for any reason, of this Agreement or the Master
Distributorship  Agreement,  disclose, use, reveal, report,  publish,  disclose,
transfer,  or make available,  directly or indirectly,  to any person,  business
concern,  or other entity, any Trade Secrets except in the proper performance of
its duties hereunder;  provided,  however,  Master Distributor is not prohibited
hereby from  disclosing or using any Trade Secrets  which  subsequently  becomes
part of the  public  domain  through no breach of this  Agreement  or the Master
Distributorship Agreement and through no fault of Master Distributor.

5. Non-Disclosure of Confidential Information or Proprietary Information. Master
Distributor  shall  not,  during  the  term of  this  Agreement  and the  Master
Distributorship  Agreement,  and for a  period  of  three  (3)  years  following
termination, for any reason, of the Master Distributorship Agreement,  disclose,
use, reveal, report, publish, disclose, transfer, or make available, directly or
indirectly,  to any person,  business concern, or other entity, any Confidential
Information or Proprietary  Information  except in the proper performance of its
duties hereunder; provided, however, Master Distributor is not prohibited hereby
from disclosing or using any Confidential Information or Proprietary Information
which  subsequently  becomes part of the public domain through no breach of this
Agreement  and the  Master  Distributorship  Agreement  and  through no fault of
Master Distributor.

6.  Confidentiality  Procedures.  Master  Distributor shall take all appropriate
steps to ensure  that the  Confidential  Information  and Trade  Secrets and any
other similar  information  and data set forth in this  Agreement and the Master
Distributorship  Agreement  are not divulged or  disclosed  to any  unauthorized
person.

7. License and Use of Marks. Company hereby grants to Master Distributor, during
the term of this Agreement only, the non-exclusive,  royalty-free  limited right
and license to use the Marks only in connection  with the  performance of Master
Distributor's  duties and obligations  under this Agreement and under the Master
Distributorship  Agreement.  Master  Distributor  agrees not to use the Marks in
connection with any other  business,  products or services.  Master  Distributor
agrees not to use the Marks, or any of them, or any confusingly  similar name or
symbol, in whole or in part, as part of Master  Distributor's  business or trade
name. The Parties shall mutually approve all promotional material used by Master
Distributor in connection with the distribution and marketing of the Products to
ensure that Master Distributor properly uses the Marks.

8. Protection Against Infringement. Master Distributor agrees to cooperate fully
with  Company  to  protect  company's  proprietary  rights  in the  Intellectual
Property,  yet  acknowledges  and agrees that Company shall have the sole right,
opportunity and duty to protect the  Intellectual  Property from legal action or
suit for  infringement  thereof,  and  Master  Distributor  shall  not  respond,
contest,  settle,  or  otherwise  conduct any  proceedings  or handle any claims
without prior  consultation  with and written  approval  from Company,  unless a
response  is  necessary  to avoid  compromising  the  rights of  Company in such
proceedings or with regard to such claims.

9. No  Registration  without  Notice.  Master  Distributor  agrees  it will not,
without the prior written consent of Company,  directly or indirectly  register,
apply for  registration,  or attempt to acquire any legal  protection for any of
the Intellectual  Property or the Products or any proprietary rights therein, or
take any other action which may adversely  affect  Company's  right,  title,  or
interest in or to the  Intellectual  Property  or the  Products in any nation or
state within the Territory.

10.  No  Challenges.   Master  Distributor  shall  not  challenge,  directly  or
indirectly,  the right, title, and interest of Company in and to the Proprietary
Information,   Intellectual   Property  and   Products,   nor  the  validity  or
enforceability  of Company's claimed rights therein under the laws of any nation
or state within the Territory.

11. No Warranty of Intellectual Prop.  Company expressly  disclaims and makes no
warranty,  promise or  representation  that the  Intellectual  Property does not
infringe  upon the  proprietary  rights of third  parties  under the laws of the
nations and states in the Territory.

12. Termination upon Breach.  Master Distributor  acknowledges that in the event
of a breach by Master Distributor of its obligations under this Agreement or the
Master  Distributorship  Agreement,   Company  may  immediately  terminate  this
Agreement and the Master Distribution  Agreement without liability and may bring
appropriate  legal action to enjoin any breach of this  Agreement,  and shall be
entitled to recover from Master  Distributor legal fees and costs in addition to
other  appropriate  legal and equitable relief in any nation or state within the
Territory.

13. No Recourse for Loss Caused by  Intellectual  Property.  Master  Distributor
shall have no recourse against Company for any loss, liability, damages or costs
which may at any time be suffered or  incurred by Master  Distributor  by reason
of, or in reliance upon, any of the Intellectual Property furnished hereunder by
Company,  or by reason of any suit or proceeding  against Master  Distributor on
account of any  Intellectual  Property,  or by reason of the defense of any such
suit or proceeding,  unless such loss, liability, damages or costs are caused by
gross negligence or fraud of Company.

14.  Covenants/Severability.  Master Distributor recognizes and agrees: (i) that
the covenants and  agreements  contained in Sections 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12 and 13 of this Agreement are of the essence of this Agreement;  (ii) that
each of such  covenants is reasonable  and necessary to protect and preserve the
interests and properties of the Company and the Business of Company;  (iii) that
irreparable   loss  and  damage  will  be  suffered  by  Company  should  Master
Distributor breach any of such covenants and agreements;  (iv) that each of such
covenants and agreements is separate,  distinct and severable from the other and
remaining provisions of this Agreement;  (v) that, if any such covenant is found
by a court of competent  jurisdiction  to be over broad in any  respect,  Master
Distributor desires and directs that such covenant be amended by such court to a
reasonable  breadth;  (vi) that, in addition to other remedies  available to it,
Company shall be entitled to both temporary and permanent injunctions to prevent
a breach or contemplated  breach by Master  Distributor of any of such covenants
or agreements;  (vii) that the  prevailing  party s ' hall be reimbursed for any
costs or  expenses  (including  reasonable  attorneys'  fees) in  attempting  to
enforce or defend  against any such  covenants;  and (viii) in the event Company
seeks a temporary or preliminary injunction hereunder, Master Distributor hereby
waives any requirement that Company post a bond or other security.

15, Binding Effect.  This Agreement shall ensure to the benefit of, and shall be
binding  upon,  the  parties  hereto  and their  respective  heirs,  successors,
assigns, and legal representatives.

16. Governing Law, Forum for Litigation. This Agreement shall be interpreted and
governed by the laws of the State of South  Carolina,  without  giving effect to
its  conflicts of laws rules.  Notwithstanding  alternative  dispute  settlement
provisions in the Master Distributorship  Agreement, any action or proceeding to
enforce  or  interpret  this  Agreement  shall be  brought  only in the state or
federal courts sitting in Charleston County, South Carolina,  United States, and
Master  Distributor  hereby  irrevocably  submits and consents to such exclusive
jurisdiction and venue.

17. Severability. The provisions of this Agreement shall be deemed severable and
the  invalidity  or the  unenforceability  of any one or more of the  provisions
hereof shall not affect the validity or  enforceability  of the other provisions
hereof.

18. Entire  Agreement.  This Agreement is executed in connection with the Master
Distributorship  Agreement, but, with respect to the subject matter hereof, sets
forth the entire  understanding  between the parties  hereto and  supersedes and
replaces any and every other agreement with respect to the subject matter hereof
which may have  existed  between  Company  and  Master  Distributor,  including,
without limitation, the Non-Disclosure and Confidentiality Agreement executed on
or about  September 1, 1994, and the  Confidentiality  Agreement  executed on or
about October 11, 1995.

19. Amendments and Waivers. This Agreement may not be modified or amended except
by an  instrument  or  instruments  in writing  signed by the party against whom
enforcement of any such modification or amendment is sought. Either party hereto
may by an instrument in writing waive  compliance by the other party of any term
or  provision of this  Agreement on the part of such other party.  The waiver by
any  party of a breach of any term or  provision  shall  not be  construed  as a
waiver of any subsequent breach.

20. Section Headings.  The section headings  contained in this Agreement are for
reference purposes only and shall not be deemed to control or affect the meaning
or construction of any provision.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed by their duly authorized  representatives  as of the day and year first
written above.

                          MASTER DISTRIBUTOR: ZELLWEGER
                                 ANALYTICS INC.

                                       By:

ATTEST:

Corporate Secretary

                        COMPANY-. ENVIROMETRICS PRODUCTS
                                    COMPANY

                                       By
                        Walter H. Elliott, III, President
ATTEST:

Corporate SecretaryOFFICE LEASE
                                    between
                                LPC OF S.C., INC
                   (a Subsidiary of The Liberty Corporation)
                                    LANDLORD
                                      and
                           Trico Envirometrics, Inc.
                                     TENANT
                             4055 Faber Place Drive
                        The Executive Park at Faber Place
                         No. Charleston, South Carolina

                                      Date:

                                  OFFICE LEASE

     LEASE made this/ day of January,  1996, by and between LPC of S. C., Inc. ,
a  corporation  organized  and  existing  under  the laws of the  State of South
Carolina  (hereinafter  called  "Landlord"),   and  Trico  Envirometrics.   Inc.
(hereinafter called "Tenant").

                                   WITNESSETH:

     1. Demised Premises.  Landlord.  for the term and subject to the provisions
and conditions hereof,  leases to Tenant, and Tenant rents from Landlord,  Suite
201 (inclusive of Suite 210) the space (hereinafter  referred to as the "Demised
Premises" and more particularly  delineated on the floor plans annexed hereto as
Exhibit "A"),  consisting of  approximately  9,094 square feet of rentable space
(which includes the area outlined in Exhibit "A" Tenant's proportionate share of
common areas) on the second floor of the commercial  office building  located at
4055 Faber Place  Drive in  Executive  Park at Faber Place in North  Charleston.
South  Carolina.   The  office   building  and  adjacent  land   (consisting  of
approximately  4.5 acres) on which it is situated is referred to  hereinafter as
the  Building.  Landlord and Tenant agree that the Total  Rentable  Space in the
Building is 54.270 rentable square feet.

     2. Term.

     A. Duration.  This Lease shall become fully  effective and rent shall begin
to accrue on  February  1, 1996,  (the  "Rent  Commencement  Date") and  further
outlined on Exhibit "B" attached  hereto and made a part hereof.  The Lease Term
shall commence on the Rent  Commencement  date, except that the Lease Term shall
commence on the first day (the "Term  Commencement  Date") of the first calendar
month  following the rent  commencement  Date if the Rent  Commencement  Date is
'other than the first day of a calendar month. The Lease Term shall continue for
a period of Three (3)  years  unless  extended  or sooner  terminated  as herein
provided.  The Lease Term shall  expire at  midnight of the last day of the last
month of the Lease Term. If Landlord has not delivered possession of the Demised
Premises to Tenant by said Rent  Commencement  Date, the Rent  Commencement Date
and Term  Commencement  Date  shall  be the date  such  possession  is  actually
delivered.  Provided.  however. that if possession has not been delivered by the
thirtieth  day after the Rent  Commencement  Date  specified  above,  Tenant may
cancel this lease at any time before possession is actually delivered. by giving
Landlord written notice thereof

     B. Memorandum.  'When the date of commencement of the term of this Lease is
established,  Landlord  shall  prepare  and  deliver to Tenant and Tenant  shall
promptly execute and acknowledge a memorandum in form substantially as set forth
in hereto,  containing the  information set forth in said Exhibit.  which.  when
executed. shall be incorporated herein by reference.

     3. Minimum Rent.

     A. Minimum Rent shall accrue  during the term at the annual rate  specified
in Exhibit "B" hereto.

     Such  Minimum  Rent  shall  be  payable  in  advance.   in  equal   monthly
installments of one twelfth  (1/12th) of the annual amount,  the installment for
the  first  full  calendar  to be  payable  upon  execution  of this  Lease  and
subsequent  installments to be payable on the first day of each successive month
of term hereof following the first month of such term.

     B. If the Rent  Commencement  Date of this Lease  falls on a day other than
the first day of rent a month, Minimum Rent from such day until the first day of
the following month shall be prorated (on the basis of the number of days during
the first  month) and shall be  payable,  in advance,  on the Rent  Commencement
date. In such event,  the installment of rent paid at execution  hereof shall be
applied to the due for the first full calendar month of the term hereof

     C. Tenant  hereby  covenants  and agrees to pay when due all Minimum  Rent,
Additional  Rent and other sums due to  Landlord  hereunder  at such  address as
Landlord may designate,  from time to time, by written notice to Tenant, without
demand and without deduction, set- of, counterclaim or abatement for any reason.

     D. If Landlord,  at any time or times.  shall accept said rent or any other
sum due to it  hereunder  after the same  shall  become  due and  payable.  such
acceptance shall not excuse delay upon subsequent occasions or constitute, or be
construed as, a waiver of any Landlord's rights hereunder.

     E. All sums payable by Tenant under this Lease, whether or not stated to be
Minimum Rent or Additional  Rent. shall be collectible by Landlord as Additional
Rent, and on default in payment thereof  Landlord shall have the same rights and
remedies as for  failure to pay rent  (without  prejudice  to any other right or
remedy available therefor).

     F. Late Charge.  Landlord may impose a late charge,  due on demand.  of not
more than five (5%) percent of any installment of Base Rent that is not received
within  five  (5) days  after it is due.  Any  such  late  charge  is in lieu of
interest on such  installment,  but it otherwise is in addition to, and does not
waive, limit, or otherwise impair, any other right or remedy of Landlord.

     4. Rent Adjustment, Increment in Taxes and Operating.- Expenses.

     A.  Definitions.  As used in this Paragraph 4. the followin2 terms shall be
defined as hereinafter set forth:

     (I.) "Taxes" shall mean all taxes, assessments.  and charges levied upon or
with respect to the Building or any  personal  property of Landlord  used in the
operation thereof.  Taxes shall include.  without  limitation.  all general real
property  taxes  and  general  and  special  assessments.   charges,   fees.  or
assessments for sit, housing,  police,  fire or other  governmental  services or
purported  benefits to the Building,  service payments in lieu of taxes. and any
tax.  fee, or excise on the act of entering,  into this Lease or any other lease
of space in the  Building-,  on the use or occupancy of the Building or any part
thereof,  or on the rent  payable  under  any  lease or in  connection  with the
business of renting space in the Building,  that are now or hereafter  levied or
assessed  against  Landlord by the United States of America,  the State of South
Carolina or any political  subdivision,  public corporation,  district, or other
political  or public  entity.  Taxes shall also  include any other tax,  fee, or
other excise, however. described, that may be levied or assessed as a substitute
for or as an addition to, in whole or in part,  any other Taxes,  whether or not
now customary or in the  contemplation of the parties on the date of this Lease.
Taxes shall not include franchise, transfer, inheritance, or capital stock taxes
or income taxes measured by the net income of Landlord from all sources, unless,
due to a change in the method of  taxation,  any such tax is levied or  assessed
against  Landlord as a substitute for or as an addition to, in whole or in part,
any other tax that would  otherwise  constitute a property tax. Taxes shall also
include  reasonable legal fees, costs, and disbursements  incurred in connection
with proceedings to contest, determine. or reduce Taxes.

     (2.)  "Operating  Expenses"  shall include all expenses,  costs and charges
paid or incurred by Landlord  for the  management,  operation,  maintenance  and
repair ("repair" as used in connection with operating expenses shall not include
alterations or other capital  expenditures  made by Landlord.  but shall include
the  cost  of any  capital  improvements  made  that  were  required  under  any
governmental  law or regulation  that was not  applicable to the premises at the
time of  delivery  of  possession  of the  Demised  Premises  to  Tenant) of the
Building as a first class office building and shall include.  but not be limited
to. the following:

     a. Salaries or wages and fringe benefits and related costs for the services
of Landlord's  employees  performing  services  required in connection  with the
operation. repair and maintenance of the Building; on a regular basis including:

     (i)  watchmen  and  persons  engage  d in  patrolling  and  protecting  the
Building;

     (ii) carpenters. engineers. architects, mechanics.  electricians,  painters
and plumbers engaged in the operation, repair and maintenance of any part of the
Building,  the  plazas  and  sidewalks  around  the  Building  and the  heating,
air-conditioning,  ventilating,  plumbing,  electrical,  elevator and other such
systems of the Building.

     (iii) such other personnel  employed from time to time in order to properly
maintain and operate the Building; and

     (iv)  personnel  engaged  exclusively  in supervision of any of the persons
mentioned above.

     b. The cost of materials  and supplies  used in the  operation,  repair and
maintenance of the Building.

     c. The cost of  replacement  for tools and equipment used in the operation.
repair and maintenance of the Building.

     d. The costs  incurred by Landlord for building  management  and reasonable
legal,  accounting or other  professional  fees incurred in connection  with the
operation of the Building.

     e. Amounts charged to Landlord by contractors  for services.  materials and
supplies  furnished in connection with the operation,  repair and maintenance of
any  part of the  Building,  and  the  heating,  air-conditioning,  ventilating,
plumbing, electrical. elevator and other systems of the Building.

     f. Amounts  charged to Landlord by  contractors  for window  cleaning,  and
cleaning, janitorial and landscaping maintenance services in about the Building.

     9.  Premiums  paid by Landlord  for All Risk  Insurance  for the  Building,
including,  without  limitation,  fire insurance,  with such extended  coverage,
vandalism and malicious mischief coverage.  and rent insurance coverage.  of the
type and character usually carried by landlords of similar first class buildings
and premiums paid for comprehensive  general public liability  insurance against
claims for bodily or other personal  injury,  death or property  damage,  and if
carried by Landlord,  boiler and machinery insurance and war risk insurance. and
such  other  insurance  as may  from  time to time be  reasonably  require  d by
Landlord to protect Landlord against other insurable hazards,  which at the time
are commonly insured against in the case of premises similar to the Building.

     h. Water and sewer charges.

     i. Utility Costs for the operation. maintenance and repair of the Building.
The term  "Utility  Costs"  shall  include  Landlord's  annual  expenses for the
operation and  maintenance  of the Building and the Office Space with respect to
utility  charges for furnishing,  heat, air  conditioning,  electricity,  water.
sewage. gas, garbage removal, etc. If the final lease year (to include renewals)
during which  escalation  may occur shall contain less than twelve  months.  the
increases  hereunder  shall be  prorated.  the Tenant's  obligation  to pay such
increase to survive the expiration of the Lease (and renewal) term.

     Any other expense or charge which, in accordance with sound  accounting and
management  principles  generally accepted with respect to first class buildings
in Charleston, SC area would be construed as an operating expense.

     Operating  expenses  shall be "net  only".  and for that  purpose  shall be
reduced by the amounts of any reimbursement.  credit.  recoupment.  discount. or
allowance actually received by Landlord in connection with such expenses.

          The following items shall be excluded from Operating Expenses:

          (i) Labor Costs in respect of officers and  executives  of Landlord or
     individual  partners of a successor  of  Landlord  if such  successor  be a
     partnership;

          (ii) Any  insurance  premium to the extent that Landlord is reimbursed
     for such premium (other than by Additional Rent payments);

          (iii)  The cost of any  items  for which  Landlord  is  reimbursed  by
     insurance or otherwise compensated;

          (iv) The cost of any additions to the Building  subsequent to the date
     of original construction or any alterations or refurbishing of space leased
     to other tenants of the Building.

          (v)  "Tenant's  Share" means a pro rata portion  which is a percentage
     calculated  by dividing  the number of rentable  square feet in the Demised
     Premises by the Total Rentable Square feet in the Building, as set forth in
     Article 1.

          B. Payment of Tenant's Share

          (1.)  Tenant's  Share of Taxes and  Operating  Exi2enso.  For and with
     respect to each  calendar year within which the term of this Lease (and any
     renewal or extension  thereof) falls,  during which the total of "Operating
     Expenses"  and the "Taxes" as  hereinabove  defined  exceeds  Four  ($4.00)
     Dollars  per  rentable  square  foot of  Building-  space  per  annum  (the
     "Operating  Expense Base"),  there shall accrue as Additional Rent Tenant's
     Share of such  excess  Taxes and  Operating  Expenses  for such year.  Such
     Additional  Rent  shall be  prorated  on a per them  basis for any  partial
     calendar  year  included  within  the  beginning  and end of the term.  For
     purposes of this  Paragraph 4B (I.),  any  assessment  upon which  Tenant's
     Share of Taxes is based shall be deemed to be the amount initially assessed
     until such time as a refund,  rebate or increase,  if any  (retroactive  or
     otherwise),  shall be  finally  determined  to be due.  and upon such final
     determination, Landlord shall promptly notify Tenant of the amount, if any.
     due to  Tenant  or  Landlord.  as the  case  may  be.  as a  result  of the
     adjustment,  and appropriate payment to Landlord or Tenant, as the case may
     be.  shall  thereafter  be promptly  made.  Landlord  shall have no duty to
     Tenant to contest. appeal or otherwise challenge any Taxes. In the event of
     any reduction in Taxes by reason of legal or other action taken by Landlord
     in  contest  of same.  there  shall be added to and be deemed a part of the
     Taxes in question the amount of Landlord  reasonable  legal and other costs
     and expenses in obtaining-  the  reduction  (but not an amount in excess of
     the tax saving for one year).

          Time and Manner of  Payment.  Prior to the end of each  calendar  year
     during the Term (and any renewal period),  Landlord shall deliver to Tenant
     a statement  setting forth the amount by which the  Operating  Expenses and
     Taxes are projected to exceed the  Operating  Expense  Base.  During,  each
     month of the  ensuing  calendar  year,  Tenant  shall  pay to  Landlord  as
     Additional Rent,  contemporaneously with payment of Minimum Rent, an amount
     equal to one-twelfth (1/12) of Tenant's Share of such excess.

          (3.)  Tax and  Operating-  Expense  Statements.  On or  about  April I
     following the end of each calendar  year, or at such later time as Landlord
     may be able to determine the actual amounts of Taxes and Operating Expenses
     for the calendar year last ended,  Landlord  shall notify Tenant in writing
     of such actual  amounts.  If the actual  amounts exceed the amounts paid by
     Tenant as  Additional  Rent on account  thereof in the  calendar  Year last
     ended, Tenant shall, within thirty (30) days of receipt of such notice, pay
     to Landlord  Tenant's Share of such excess.  If the actual amounts of Taxes
     and  Operating  Expenses for the calendar year last ended are less than the
     amounts paid by Tenant in the calendar year last ended, then Landlord shall
     credit  such  excess  to  installments  of rent  payable  after the date of
     Landlord's  notice until such credit is  exhausted.  No interest or penalty
     shall  accrue to Tenant on any amounts  which  Landlord may be obligated to
     credit or pay to Tenant by reason of this paragraph.

          C. Survival After Termination.  If. upon termination of this Lease for
     any cause, the amount of any Additional Rent due pursuant to this Paragraph
     4 has not yet been  determined,  Tenant  shall pay  Landlord  an  estimated
     amount  of  Additional  Rent as  determined  by  Landlord  based  upon  the
     preceding year's Additional Rent, and an appropriate payment from Tenant to
     Landlord or refund from  Landlord to Tenant  shall be made  promptly  after
     such determination.

          5. Use of Demised  Premises.  The  Demised  Premises  shall be used by
     Tenant as a  business  or  professional  office  and for no other  purposes
     without  the prior  written  consent of  Landlord.  Tenant will not use the
     Demised  Premises for the purpose of retail  sales.  Tenant shall not do or
     permit to be done in or about the  Demised  Premises,  nor bring or keep or
     permit to be brought or kept  therein,  anything  which is prohibited by or
     will in any way conflict  with any law,  statute,  ordinance or  government
     rule or  regulation  now in force or which  may  hereafter  be  enacted  or
     promulgated,  or which is prohibited by any standard form of fire insurance
     policy or will in any way increase the existing  rate or affect any fire or
     other  insurance  upon  the  Building  or any of its  contents,  or cause a
     cancellation of any insurance  policy covering the Building or part thereof
     or any of its contents.  Tenant shall not do or permit  anything to be done
     in or  about  the  Demised  Premises  which  will  in any way  obstruct  or
     interfere  with the rights of other tenants of the  Building,  or injure or
     annoy  them  or use or  allow  the  Demised  Premises  to be  used  for any
     improper,  immoral.  unlawful or  objectionable  purpose  nor shall  Tenant
     cause.  maintain.  or permit  any  nuisance  in,  on, or about the  Demised
     Premises, or commit or suffer to be committed any waste in. on or about the
     Demised Premises.  Tenant shall occupy the Demised Premises during the term
     and use it for the uses permitted herein.

          . Improvement of the Demised Premises.  Landlord's  standard finish in
     the Demised  premises for Tenant shall be limited to the items set forth in
     Exhibit A- I attached hereto.  It shall be presumed that all work performed
     by or on behalf of Landlord as required herein was satisfactorily performed
     in accordance  with, and meeting the  requirements  of. this Lease.  unless
     within sixty (60) days after  delivery of possession of the space to Tenant
     and completion of such work Tenant shall notify  Landlord,  in writing,  of
     the specific deficiencies.

          7. Services.  The following  provisions  relating to Building services
     shall be applicable:

          A. HVAC. Landlord shall furnish heat, ventilation and air-conditioning
     to the Demised  Premises Monday through Friday from 8:00 a.m. to 6:00 p.m.,
     and 8:00 a.m. to 1:00 p.m.  Saturdays,  holidays  (meaning  New Year's Day,
     Memorial Day, July 4th. Labor Day,  Thanksgiving Day, Christmas Day or such
     days as are  customarily  designated for observance of such days) excepted.
     Heat and  conditioned  air  required  by Tenant at times  other  than those
     mentioned above shall be supplied upon reasonable  prior notice,  and shall
     be paid for by Tenant,  promptly  upon  billing,  at such rates as Landlord
     shall   from   time  to  time   establish   therefor.   The   heating   and
     air-conditioning systems intended to service the Demised Premises have been
     designed to be capable of providing comfortable occupancy for normal office
     use. Any additional or supplementary heating or cooling systems required or
     desired by Tenant and  approved by Landlord  shall be installed at Tenant's
     cost in accordance  with the provision of paragraph 6 hereof The furnishing
     of heat and  conditioned  air shall be subject to any  statute,  ordinance.
     rule,  regulation.  resolution or  recommendation  for energy  conservation
     which may be promulgated by any governmental  agency or organization  which
     Landlord shall be required to abide by, or in good faith may elect to abide
     with.

          B. Access.  Tenant and its  employees  and agents shall have access to
     the Demised  Premises  at all times,  subject to the  compliance  with such
     security measures as shall from time to time be in effect for the Building.

          C.  Janitorial.  Landlord  shall  provide  janitorial  services to the
     Demised  Premises as specified on Exhibit "E" annexed  hereto.  Any and all
     additional  or  specialized  janitorial  service  desired  by Tenant may be
     contacted for by Tenant directly with Landlord's  janitorial agent, and the
     cost and payment  therefor shall be and remain the sole  responsibility  of
     Tenant.  Tenant shall not place nor store any trash or other refuse  matter
     or debris in any  corridors  or common  areas of the  Building,.  unless in
     receptacles provided therefor by Landlord.

          D.  Repairs.  Landlord  shall be  responsible  for  making  structural
     repairs to the Building,  for  maintaining  the Building roof and exterior.
     and for making repairs to systems, facilities and equipment located outside
     of but  furnishing  service to the Demised  Premise.  In the event that any
     such repair is required by reason of the  negligence  or abuse of Tenant or
     its agents.  employees.  invitees or of any other  person using the Demised
     Premises with Tenant's consent, express or implied.  Landlord may make such
     repair and add the cost thereof to the first installment of rent which will
     thereafter become due, unless Landlord shall have actually recovered or has
     the  right to  recover  such cost  through  insurance  proceeds.  All other
     repairs of every type and nature  including  those to windows,  plate glass
     and doors.  excluding  repairs  required  by reason of acts of God.  latent
     defects  in and  settlement  of  the  Building-.  shall  be  Tenant's  sole
     responsibility,

          E. Common Areas. Landlord shall keep and maintain the common areas and
     facilities of the Building clean and in good working, order.

          F. Lighting.  Landlord will provide  replacement of Building  standard
     lighting tubes, bulbs and ballast's.

          G.  Electricity.  Landlord  shall  furnish the Demised  Premises  with
     electric  current for  lighting  and normal  office use and for heating and
     air-conditioning.  Tenant  shall not  install  or  operate  in the  Demised
     Premises any electrically operated equipment or other machinery, other than
     typewriters,  adding machines.  reproduction  machines. and other machinery
     and equipment  using I 10 voltage  normally used in modem offices,  without
     first  obtaining  the prior written  consent of the Landlord.  Landlord may
     condition  such  consent upon the payment by Tenant of  Additional  Rent as
     compensation  for the additional  consumption of electricity  occasioned by
     the  operation of said  equipment or  machinery.  Landlord may require that
     special.  high  electricity  consumption  installations  of Tenant (such as
     mainframe computer or reproduction facilities) be separately submetered for
     electrical  consumption,  at Tenant's cost. In such case.  Tenant shall pay
     for such  metered  consumption  based upon the retail rate  (including  all
     applicable  taxes and adjustment  charges) which Tenant would have paid had
     Tenant purchased such electricity directly from electric utility company.

          8. Limitation Regarding Services. Landlord reserves the right, without
     any liability to Tenant and without being in breach of any covenant of this
     Lease, to interrupt or suspend service of any of the heating,  ventilating,
     air-conditioning,  electric,  or other Building systems serving the Demised
     premises,  or  the  rendition  of any of the  other  services  required  of
     Landlord under this Lease. whenever, and for so long as may be necessary by
     reason of  accidents.  emergencies.  strikes  or the  making of  repairs or
     changes  which  Landlord  is required by this Lease or by law to make or in
     good faith deems  advisable,  or by reason of difficulty in securing proper
     supplies of fuel,  steam,  water,  electricity,  labor or  supplies.  or by
     reason of any other cause beyond Landlord's  reasonable control,  including
     without limitation. mechanical failure and governmental restrictions on the
     use of  materials  or the  use of any of the  Building-  systems.  In  each
     instance,   however,   Landlord  shall  exercise  reasonable  diligence  to
     eliminate the cause of interruption  and to effect  restoration of service.
     and  shall  give  Tenant  reasonable  notice,  when  practicable,   of  the
     commencement and anticipated  duration of such  interruption.  Tenant shall
     not  be  entitled  to  any   diminution  or  abatement  of  rent  or  other
     compensation  nor shall this Lease or any of the  obligations of the Tenant
     be  affected  or  reduced  by  reason  of  the  interruption.  stoppage  or
     suspension  of the Building  systems or services  arising out of the causes
     set forth in this paragraph.

          9. Care of the Demised  Premises.  Tenant  agrees that it shall comply
     with the following requirements:

          A.  Governmental  Requirements.  Tenant shall at all times comply with
     any and all Federal, state and local statues. regulations,  ordinances. and
     other requirements, of any of the constituted public authorities and of all
     insurance  underwriters,  relating- to its use and occupancy of the Demised
     Premises.

          B. Access.  Tenant shall give Landlord access to the Demised  Premises
     at all  reasonable  times,  without  charge or diminution of rent. and upon
     reasonable  prior notice  (except that no prior notice shall be required in
     an emergency), to enable Landlord: (1) to examine the same and to make such
     repairs. additions and alterations as Landlord may be permitted or required
     to make hereunder or as Landlord may deem advisable for the preservation of
     the  integrity.  safety and good order of the Building or any part thereof.
     and  (2)  to  show  the  Demised  Premises  to  prospective  mortgages  and
     purchasers  and, during the twelve (12) month period prior to expiration of
     the term hereof. to prospective  tenants.  Except in the case of emergency,
     and,  such  repairs.  additions  and  alterations  made by  Landlord in the
     Demised Premises shall be made during  nonbusiness hours and in such manner
     as not to  unreasonably  interfere  with the conduct of Tenant's  business.
     unless required by virtue of Tenant's negligence or fault.

          C.  Condition.   Tenant  shall  keep  the  Demised  Premises  and  all
     installations  and  systems  therein  in safe.  good  order  and  condition
     generally  and  except  for  such  structural  repairs  as  are  Landlord's
     obligation  under  this  Lease,  Tenant  shall,  at its own cost.  make all
     repairs and  replacements to the Demised Premises of every type and nature,
     ordinary and  extraordinary,  foreseen or  unforeseen,  as are necessary to
     maintain same in such safe,  good order and  condition.  excluding  repairs
     required by reason of acts order of God,  latent  defects and settlement of
     Building.

          D.  Surrender.  Upon  the  termination  of this  Lease  for any  cause
     whatsoever, Tenant shall remove Tenant's goods and effects and those of any
     other person  claiming  under  Tenant,  and quit and deliver up the Demised
     Premises to Landlord  peaceably  and quietly in as good order and condition
     as at the inception of the term of this Lease (or in such  condition as the
     same hereafter may be improved by Landlord or Tenant),  reasonable wear and
     tear,  damage by fire or other  casualty and repairs  which are  Landlord's
     obligation  excepted.  Goods  and  effects  not  removed  by  Tenant at the
     termination  of this Lease shall be considered  abandoned and Landlord may,
     upon ten (IO) days'  notice to  Tenant.  treat the same as its own and use,
     dispose  of  and/or  store  the  same as it  deems  expedient,  the cost of
     disposal or storage to be charged to Tenant.

          E. Tenant shall not place.  paint or display signs lettering.  logo or
     advertising  matter on the exterior or interior of the Building except with
     the prior written approval of the Landlord.

          F. Care,  Insurance.  Tenant shall not overload,  damage or deface the
     Demised  Premisesor  do any act  which  might  make  void or  voidable  any
     insurance on the Demised  Premises or the Building,  or which may render an
     increased or extra premium payable for insurance (and without  prejudice to
     any right or remedy of  Landlord  regarding,  this  subparagraph.  Landlord
     shall have the right to collect from Tenant upon demand,  any such increase
     or extra premium).

          G. Alterations: Additions. Tenant shall not make any alterations of or
     additions to the Demised  Premises  without the prior  written  approval of
     Landlord.   Said   approval   shall  not  be   unreasonably   withheld  for
     nonstructural interior alterations,  provided reasonably detailed plans and
     specifications for the work are furnished to Landlord. All such alterations
     and  additions,  as  well  as all  fixtures.  equipment.  improvements  and
     appurtenances  installed in the Demised  Premises (but excluding-  Tenant's
     trade fixtures) shall, upon installation. become and remain the property of
     Landlord and shall be maintained by Tenant during the term hereof.  and any
     renewals and extensions thereof. in the same good order and repair in which
     the Demised Premises are generally required to be maintained. Tenant shall,
     at the  expiration of the term hereof.  remove  Tenant's trade fixtures and
     other personal  property which can be removed without damage to the Demised
     Premises.  All  alterations  and  additions by Tenant shall be performed in
     accordance  with  the  plans  and  specifications   therefor  submitted  to
     Landlord. in a good and workmanlike manner and in conformity with all laws,
     regulations,  rules, ordinances. and other requirements of any governmental
     or quasi-governmental authorities having jurisdiction.

          H.  Rules  and   Regulations   Tenant  shall  observe  the  rules  and
     regulations  annexed  hereto as Exhibit  "D",  as the same may from time to
     time be amended by Landlord for the general safety, comfort and convenience
     of occupants and tenants of the Building.

          1. System Changes.  Tenant shall not exceed the capacity of any of the
     electrical conductors and equipment in the Demised Premises or Building and
     shall not  install any  equipment  of any kind or nature  whatsoever  which
     would or might  necessitate  any changes,  replacements or additions to (or
     which might  cause  damage to) the  plumbing  system,  the heating  system,
     air-conditioning  system or the  electrical  system  servicing  the Demised
     Premises or any other  portion of the  Building  without the prior  written
     consent of the  Landlord,  and in the event such  consent is  granted.  all
     costs in connection with such  replacements.  changes or additions shall be
     paid for by Tenant in advance.

          10. Subletting and Assigning: Mortgages

          A. General Restrictions.  Tenant shall not assign this Lease or sublet
     all or any portion or portions of the Demised  Premises  without  obtaining
     Landlord's prior written consent thereto, which consent, if given, will not
     release Tenant from its obligations hereunder unless expressly so stated in
     the consent and will not be deemed a consent to any further  subletting  or
     assignment.  Tenant  shall  furnish to  Landlord,  in  connection  with any
     request  for  such  consent,  reasonably  detailed  information  as to  the
     identity and business  history of the proposed  assignee or  subtenant,  as
     well as the proposed  effective  date of the  assignment  or  sublease.  If
     Landlord   consents  to  any  such  subletting  or  assignment,   it  shall
     nevertheless  be a  condition  to the  effectiveness  thereof  that a fully
     executed copy of the sublease or assignment, in form and substance approved
     by Landlord,  be  furnished  to Landlord  and that any  assignee  assume in
     writing all obligations of Tenant  hereunder.  Tenant shall not mortgage or
     encumber  this Lease.  Any profit made by Tenant  from such  assignment  or
     subletting shall be paid by Tenant to Landlord.

          B. Affiliates. Landlord shall not unreasonably withhold its consent to
     an assignment of this Lease or to a subletting of all or any portion of the
     Demised Premises to a corporate affiliate of Tenant, for the uses permitted
     in this Lease. For purposes hereof, the term corporate affiliate shall mean
     a business  entity or corporation  that controls or is controlled by, or is
     under common control with,  Tenant.  The word "control" means the right and
     power,  direct  or  indirect,  to  direct  or cause  the  direction  of the
     management   policies  of  an  entity-,,   through   ownership  of  voting,
     securities, contract or otherwise.

          11.  Fire or Other  Casualty.  In the event of  damage to the  Demised
     Premises or those  portions of the Building  PTOvidin2  access or essential
     services thereto. by fire,  hurricane or other casualty,  Landlord shall at
     its expense  cause the damage to be  repaired  to a condition  as nearly as
     practicable to that existing prior to the damage. with reasonable speed and
     diligence.  Landlord shall not however.  be obligated to restore or rebuild
     the  Demised  Premises  to a  condition  in  excess of that in which it was
     delivered  from Landlord to Tenant as specified in Paragraph 6 hereof.  nor
     in an, event to repair,  restore or rebuild any of Tenant's property or any
     alterations  or  additions  made by Tenant after  commencement  of the term
     hereof.  To the  extent  and for the time  that the  Demised  Premises  are
     thereby rendered untenantable.  the rent shall proportionately abate unless
     the damage  was due to the  negligence  of Tenant.  In the event the damage
     shall  involve  the  Building  generally  and  shall be so  extensive  that
     Landlord  shall  decide not to repair or rebuild  the  Building.  or if any
     mortgagee  of the  Building  shall not permit the  application  of adequate
     insurance  proceeds for repair or  restoration  of the Building,  or if the
     casualty  of the  Building  shall not be of a type  insured  against  under
     standard fire policies with extended type  coverage.  this Lease shall,  at
     the  option of  Landlord,  exercisable  by written  notice to Tenant  given
     within sixty (60) days thereof.  be  terminated  as of a date  specified in
     such notice (which shall not be more than thirty (30) Davis thereafter) and
     the rent (taking into account any abatement as aforesaid) shall be prorated
     to the  termination  date and Tenant shall  thereupon  promptly  vacate the
     Demised Premises.

          12. Liability.

          A. Damage in General.  Tenant agrees that Landlord and its  respective
     officers,  employees and agents.  shall not be liable to Tenant, and Tenant
     hereby releases said parties,  for any personal injure or damage to or loss
     of personal  property in or about the Demised Premises c,;- Building,  from
     any cause whatsoever,  unless such damage.  loss or injury results from the
     gross  negligence or willfulness of Landlord or its officers,  employees or
     agents. Landlord and its officers, employees and agents shall not be liable
     to Tenant for any such  damage or loss  whether or not such  damage or loss
     results from the gross negligence, or willfulness,  to the extent Tenant is
     compensated therefor by Tenant's insurance or could have obtained insurance
     at customary rates to cover such damage or loss.

          B.  Indemnity.  Tenant  shall  defend.  indemnify  and  save  harmless
     Landlord  and its agents and  employees  against and from all  liabilities.
     obligations.  damages,  penalties,  claims,  costs,  charges and  expenses,
     including reasonable attorneys' fees, which may be imposed upon or incurred
     by or asserted  against  Landlord and/or its agents by reason of any of the
     following  which  shall  occur  during the term of this Lease or during any
     period of time prior to the  commencement  date hereof when Tenant may have
     been  given  access  to or  possession  of all or any  part of the  Demised
     Premises:

          (I.) any work or act done in. on or about the Demised  Premises or any
     licensees  or  part  thereof  at  the  direction  of  Tenant,  its  agents,
     contractors, subcontractors, servants, employees, invitees;

          (2.) any  negligence or other  wrongful act or omission on the part of
     Tenant  or  any  of  its  agents.  contractors.  subcontractors.  servants.
     employees. subtenants, licensees or invitees;

          (3.)  any  accident,  injury  or  damage  to any  person  or  property
     occurring in. on or about the Demised Premises or any part thereof,  unless
     caused by the gross negligence of Landlord. its employees or agents: and

          (4.) any  failure on the part of Tenant to perform or comply  with any
     of the covenants, agreements, terms, provisions,  conditions or limitations
     contained in this Lease on its part to be performed or complied with.

          13. Eminent Domain.  If all or any part of the Building shall be taken
     or condemned for a public or quasi-public use under any statute or by right
     of eminent  domain or private  purchase  in lieu  thereof by any  competent
     authority.  Tenant shall have no claim against  Landlord and shall not have
     any claim or right to any  portion  of the  amount  that my be  awarded  as
     damages or paid as a result of any such  condemnation or purchase.  and all
     rights of the Tenant to damages  therefor are hereby  assigned by Tenant to
     Landlord. The foregoing shall not. however.  deprive Tenant of any separate
     award for moving expenses,  business  dislocation  damages or for any other
     award which would not reduce the award  payable to Landlord.  Upon the date
     the right to possession shall vest in the condemning authority.  this Lease
     shall cease and terminate  with rent prorated to such date and Tenant shall
     have no claim against  Landlord for the value of any unexpired term of this
     Lease.  Notwithstanding the foregoing,  if the condensation does not affect
     the  tenantabilitv  of the Demised  Premises,  Landlord  may,.  at its sole
     option, continue this Lease in full force and effect.

          14.  Insolvency.  (a) The appointment of a receiver or trustee to take
     possession of all or a substantial  portion of the assets of Tenant, or (b)
     an assignment by Tenant for the benefit of creditors,  (c) the  institution
     by or against Tenant of any  proceedings  for bankruptcy or  reorganization
     under  any  state  or  federal  law  (unless,  in the  case of  involuntary
     proceedings,  the same shall be  dismissed  within  sixty,  (60) days after
     institution).  or (d) any execution issued against a significant portion of
     the assets of Tenant or against Tenant's leasehold interest hereunder which
     is not stayed or  discharged at least twenty (20) days prior to a scheduled
     execution  sale,  shall  constitute  a  breach  of this  Lease  by  Tenant.
     Landlord,  in the  event of such a  breach,  shall  have,  without  need of
     further notice, the rights enumerated in Section 15 herein.

          15. Default,

          A.  Events of  Default.  If Tenant  shall  fail to pay  minimum  Rent.
     Additional Rent or any other s= payable to Landlord  hereunder when due. or
     if Tenant  shall fail to perform  or  observe  any of the other  covenants,
     terms or  conditions  contained in this Lease within ten (10) days (or such
     longer  period as is reasonably  required to correct any such default,  but
     not more than thirty ('30.) days,  provided Tenant  promptly  commences and
     diligently  continues to effectuate a cure) after written notice thereof by
     Landlord,  or if any of the events  specified in Paragraph 14 hereof occur.
     or if Tenant  vacates or  abandons  the Demised  Premises  during- the term
     hereof or removes  or  manifests  an  intention  to remove any  substantial
     portion of Tenant's code or property.  therefrom other than in the ordinary
     and usual course of Tenant's  business.  or in the event Tenant's  interest
     under  this  Lease is  assigned  by  operation  of law  without  Landlord's
     acceptance  thereof.  - if any of Tenant's property or goods in the Demised
     Premises are seized or impounded by legal  authority,  then.  and in any of
     said cases (notwithstanding any former breach of covenant or waiver thereof
     in a former  instance),  Landlord,  in  addition  to all other  rights  and
     remedies  available  to it by law or  equity  or by  any  other  provisions
     hereof.  may at any time thereafter:  upon five (5) days' notice to Tenant.
     declare to be immediately due and payable, on account of the rent and other
     charges  herein  reserved  for the balance of the term of this Lease (taken
     without  regard  to any  early  termination  of  said  term on  account  of
     default).  a sum equal to the  Accelerated  Rent Component (as  hereinafter
     defined),  and  Tenant  shall  remain  liable to  Landlord  as  hereinafter
     provided; and/or

          (2.) whether or not  Landlord  has elected to recover the  Accelerated
     Rent  Component.  terminate this Lease on at least five (5) days' notice to
     Tenant and. on the date  specified in said notice.  this Lease and the term
     hereby demised and all rights but not obligations of Tenant hereunder shall
     expire  and  terminate  and  Tenant  shall  thereupon  quit  and  surrender
     possession of the Demised  premises to Landlord in the condition  elsewhere
     herein  required and Tenant shall remain liable to Landlord as  hereinafter
     provided.

          B.  Accelerated Rent Component.  For purposes hereof.  the Accelerated
     Rent Component shall mean the aggregate of-.

          (I.) all rent and other charges, payments, costs and expenses due from
     Tenant to Landlord  and in arrears at the time of the  election of Landlord
     to recover the Accelerated Rent Component,

          (2.) the Minimum Rent reserved for the then entire  unexpired  balance
     of the term of @s Lease (taken without  regard to any early  termination of
     the term by virtue of any default), plus all other charges, payments, costs
     and expenses  herein agreed to be paid by Tenant up to the end of said term
     which shall be capable of precise  determination  at the time of Landlord's
     election to recover the Accelerated  Rent Component.  discounted to present
     value at the then  existing  prime rate of  Wachovia  National  Bank or its
     successor; and

          (').) Landlord's good faith estimate of all charges,  payments,  costs
     and expenses  herein agreed to be paid by Tenant up to the end of said term
     which shall not be capable of precise  determination  as aforesaid (and for
     such  purposes no estimate of any  component of  Additional  Rent to accrue
     pursuant to the  provisions  of  Paragraph 4 hereof  shall be less than the
     amount which would be due if each such  component  continued at the highest
     monthly rate or amount in effect during the twelve (12) months  immediately
     preceding  the default)  discounted  to present  value at the then existing
     prime rate of Wachovia National Bank or its successor.

          C.  Re-entry.  In any  case  in  which  this  Lease  shall  have  been
     terminated,  or in any case in which Landlord shall have elected to recover
     the  Accelerated  Rent  Component  and any portion of such sum shall remain
     unpaid,  Landlord may, without further notice, enter upon and repossess the
     Demised Premises,  by summary proceeding(  ejectment or otherwise,  and may
     dispossess Tenant and remove Tenant and all other persons and property from
     the Demised  Premises and may have. hold and enjoy the Demised Premises and
     the rents and profits  therefrom.  Landlord  may, in its own name, as agent
     for Tenant. if this Lease has not been terminated, or in its own behalf. if
     this Lease has been  terminated,  relet the  Demised  Premises  or any part
     thereof  for such  term or terms  (which  may be  greater  or less than the
     period which would  otherwise have  constituted  the balance of the term of
     this  Lease) and on such  conditions  and  provisions  (which  may  include
     concessions  or  free  rent)  as  Landlord  'in  its  sole  discretion  may
     determine.  Landlord may, in connection with any such relenting,  cause the
     Demised Premises to be redecorated.  altered.  divided.  consolidated  with
     other space or otherwise  changed or prepared for reletting.  No reletting-
     shall be deemed a surrender and acceptance of the Demised Premises.

          D. Continuing, Liability. Tenant shall. with respect to all periods of
     time up to and including the  expiration of the term of this Lease (or what
     would have been the  expiration  date in the  absence of default or breach)
     remain liable to Landlord as follows:

          (I.) in the event of  termination of this Lease on account of Tenant's
     default or breach. Tenant shall remain liable to Landlord for damages equal
     to the rent and other  charges  payable  under this Lease b,,- Tenant as if
     this Lease were still in effect,  less the net  proceeds  of any  relenting
     after deducting all costs incident thereto  (including-  without limitation
     all repossession costs.  brokerage-e and management commissions.  operating
     and  legal  expenses  annual  tees,  alteration  0 costs  and  expenses  of
     preparation  for  reletting)  and to the extent such damages shall not have
     been  recovered  by  Landlord  by  virtue  of  payment  by  Tenant  of  the
     Accelerated Rent Component (but without  prejudice to the night of Landlord
     to demand and receive the Accelerated Rent Component), such damage shall be
     payable to Landlord  monthly upon  presentation to Tenant of a bill for the
     amount due: and

          (2.) in the  event  and so long as this  Lease  shall  not  have  been
     terminated  after  default  or  breach  by  Tenant,  the rent and all other
     charges  payable  under this Lease shall be reduced by the net  proceeds of
     any reletting by Landlord  (after  deducting all costs incident  thereto as
     above set forth) and by any portion of the Accelerated  Rent Component paid
     by Tenant to  Landlord,  and any  amount due to  Landlord  shall be payable
     monthly upon presentation to Tenant of a bill for the amount due.

          E. Credit.  In the event  Landlord  shall,  after default or breach by
     Tenant,  recover the Accelerated Rent Component from Tenant and it shall be
     determined  at the  expiration  of the term of this  Lease  (taken  without
     regard  to early  termination  for  default)  that a credit  is due  Tenant
     because the net proceeds of relating,  as aforesaid,  plus the amounts paid
     to  Landlord  by Tenant  exceed  the  aggregate  of rent and other  charges
     accrued in favor of Landlord to the end of said term. Landlord shall refund
     such excess to Tenant. without interest, promptly after such determination.

          F. No Duty to  Relet.  Landlord  shall in no event be  responsible  or
     liable for any failure to relet the Demised  Premises or any part  thereof,
     or for any failure to collect any rent due upon a reletting.

          G.  Additional  Rights.  As a  cumulative  and  alternative  remedy of
     Landlord in the event of  termination  of this Lease by Landlord  following
     any breach or default by Tenant, Landlord, at its option, shall be entitled
     to recover  damages for such breach in an amount  equal to the  Accelerated
     Rent Component  (determined from and after the date of Landlord's  election
     under this  subsection  (G) less the  discounted  present value of the fair
     rental value of the Demised  Premises for the remainder of the term of this
     Lease (taken  without  regard to the early  termination),  and such damages
     shall be payable by Tenant  upon  demand.  All  remedies  set forth in this
     Section 15 shall be in addition to any other remedies provided by law.

          H.  Bankruptcy.  Nothing  contained  in  this  Lease  shall  limit  or
     prejudice the right of Landlord to prove for and obtain as damages incident
     to a termination of this Lease, in any bankruptcy,  reorganization or other
     court proceedings. the maximum amount allowed by any statute or rule of law
     in effect when such damages are to be proved.

          I.  Overdue  Payments.  If rent or any  other  sum due from  Tenant to
     Landlord  shall be overdue  for more than  fifteen  (15) days after the due
     date. it shall  thereafter bear interest at the rate of eighteen percent (I
     8%) per annum (or, if lower. the hi2hest le2al rate) until paid.

          16. Subordination.

          A. General.  This Lease is and shall be subject to and  subordinate to
     all  ground  or  underlying-  leases  of  the  entire  Building  and to all
     mortgages  which may now or hereafter  be secured upon the Building  and/or
     Land. and to all renewals, modifications,  consolidations, replacements and
     extensions  thereof  This  clause  shall be  self-operative  and no further
     instrument of  subordination  shall be required by any lesser or mortgagee.
     but in confirmation  of such  subordination.  Tenant shall execute,  within
     fifteen  (15)  days  after  request,  any  certificate  that  Landlord  may
     reasonably require  acknowledging such  subordination.  Notwithstanding the
     foregoing,  the  party  holding  the  instrument  to  which  this  Lease is
     subordinate  shall have the right to recognize  and preserve  this Lease in
     the event of any foreclosure sale or possessory  action.  and in such case,
     this  Lease  shall  continue  in full force and effect at the option of the
     party holding the superior lien or interest and Tenant shall attorn to such
     party and shall execute,  acknowledge  and deliver any instrument  that has
     for  its  purpose  and  effect  the  confirmation  of such  attornment.  If
     Landlords  shall so request.  Tenant shall send to any  mortgagee or ground
     lessor or lessor of the entire Building  designated by Landlord.  a copy of
     any notice given by tenant to Landlord  alleging a material  breach by Land
     lord  in  its  obligations  under  this  Lease.  The  foregoing  provisions
     concerning  subordination  shall be subject to the further  limitation that
     this Lease shall not be  subordinated  to any  mortgage  other than a first
     mortgage unless the holder of such first mortgage shall consent thereto.

          B.  Rights  of  Mortgagee.  In the  event  of any act or  omission  of
     Landlord which would give Tenant the right. immediately or after lapse of a
     period of time. to cancel or terminate this Lease, or to claim a partial or
     total eviction. Tenant shall not exercise such right:

          (I.) until it has given written  notice of such act or omission to the
     holder of each such  mortgage and ground lease or  underlying  lease of the
     entire Building whose name and address shall previously have been furnished
     to Tenant in writing; and

          (2.) until a  reasonable  period for  remedying  such act or  omission
     shall have elapsed  following the giving of such notice  (which  reasonable
     period shall in no event be less than the period to which Landlord would be
     entitled,  under this Lease or otherwise.  after similar notice.  to effect
     such remedy).

          C. Non-disturbance  Agreement.  The subordination of this Lease and of
     Tenant's leasehold  interest hereunder to the lien of any mortgage,  ground
     lease or other  encumbrance  hereafter  placed on the  Demised  Premises is
     conditioned upon execution and delivery by such mortgagee, ground lessor or
     other  encumbrancer  to the Tenant of an  agreement in form  acceptable  to
     Landlord and the holder of such superior lien and in recordable form, under
     which such mortgagee,  around lessor or other encumbrancer (for itself, its
     successors  and  assigns,  and for anyone  asserting  title to, or right to
     possession  of, the Demised  Premises  under the  remedies  afforded by the
     mortgagee, ground lease or other encumbrance). shall covenant and agree for
     the benefit of Tenant. its successors and assigns:

          (I.) to take no action to interfere with the possession and use of the
     Demised  Premises by Tenant.  its successors  and assigns  and/or  Tenant's
     rights hereunder, except to the extent permitted to Landlord by the express
     provisions of this Lease: and

          (2.) upon any,  foreclosure  sale or other sale,  the purchaser  shall
     become the  Landlord  under this Lease and agrees to be bound by all of its
     terms, provided Tenant attorns to such purchaser.

          17.  Reservations  in Favor of Landlord  All walls,  windows and doors
     bounding the Demised  Premises  (including  exterior  Building walls,  core
     corridor walls and doors and any core corridor entrance), except the inside
     surfaces  thereof.  any terraces or roofs adjacent to the Demised Premises,
     and any space in or  adjacent  to the  Demised  Premises  used for  shafts.
     pipes,  conduits,  fan rooms. ducts. electric or other utilities.  sinks or
     other  Building  facilities,  and the use  thereof.  as well as  reasonable
     access thereto throu2h the Demised  Premises for the purposes of operation,
     maintenance. decoration and repair, are reserved to Landlord.

          18. Notices.  All bills.  statements,  notices or other communications
     given hereunder shall be deemed sufficiently . given or rendered only if in
     writing  delivered  personally or sent by certified  mail,  return  receipt
     requested, postage prepaid, as follows:

If to Tenant
Envirometrics, Inc.
Attn:
Faber Place Drive Suite 201
North Charleston, South Carolina 29405

                       If to Landlord: LPC of S.C.. Inc.
                            Attn: C. G. Whitmire, Jr.
                               Post Office Box 789
                      Greenville. South Carolina 29602-0789

Copy to:                                    Liberty Properties Group, Inc.
                                            Attn: Peggy Campbell
                                            4055 Faber Place Drive
                                            Charleston.  South Carolina 29405

          or to such other person or place as a party may designate by notice as
     aforesaid.  Notice by mail shall be deemed  given on the date or receipt as
     shown  on the  return  receipt.  Notices  requesting  after-hours  Building
     services may be given. in writing by Tenant to' the Building superintendent
     designated by Landlord for such purposes.

          19.  Holding  Over.  Should Tenant  wrongfully  continue to occupy the
     Demised  Premises after expiration of the term of this Lease or any renewal
     or renewals thereof,  except on expiration of the term of this Lease or any
     renewal or renewals  thereof  occasioned  by default,  such  tenancy  shall
     (without  limitation on any of Landlord's  rights or remedies  therefor) be
     one at  sufferance  from month to month at a minimum  monthly rent equal to
     twice the total Minimum Rent and Additional Rent payable for the last month
     of the term of this lease prior to the  holdover.  The  foregoing  right to
     recover  double  rent  shall  not  apply if  Tenant  shall  experience  any
     unavoidable  delay in moving due to strikes.  accidents or acts of God. not
     in excess of fifteen (I 5) days.

          20. Waiver of Subordination.  Each party hereto hereby, waives any and
     every  claim  which  arises or which may arise in its favor and against the
     other  party  hereto  during  the term of this  Lease or any  extension  or
     renewal  thereof for-any and all loss of. or damage to, any of its property
     located  within  or upon or  constituting  a part of the  Building.  to the
     extent that such loss or damage is recovered  under an insurance  policy or
     policies  and to the extent  such  policy or  policies  contain  provisions
     permitting such waiver of claims. Each party agrees to request its insurers
     to issue policies  containing  such  provisions and if any extra premium is
     payable  therefor,  the party which would benefit from the provision  shall
     have the  option to pay such  additional  premium  in order to obtain  such
     benefit.

          21.  Rent Tax.  If,  during the term of this  Lease or any  renewal or
     extension  thereof.  any tax is imposed  upon the  privilege  of renting or
     occupying  the  Demised  Premises  or upon the amount of rentals  collected
     therefor.  Tenant will pay each month,  as Additional  Rent. a sum equal to
     such tax or charge that is imposed for such month. but nothing herein shall
     be taken to  require  Tenant  to pay any  income.  estate,  inheritance  or
     franchise tax imposed upon Landlord.

          22. Prior  Agreements,  Amendments.  This Lease constitutes the entire
     agreement  between the parties  relating  to the subject  matter  contained
     herein.  Neither  party  hereto has made any  representations  or  promises
     except as contained herein.  This Lease supersedes all prior  negotiations.
     agreements,  informational brochures,  letters, promotional information and
     other statements and materials made or furnished by Landlord or its agents.
     No  agreement  hereinafter  made  shall be  effective  to  change.  modify,
     discharge  or effect an  abandonment  of this  Lease,  in whole or in part,
     unless such  agreement  is in writing and signed by the party  against whom
     enforcement of the change,  modification,  discharge is sought. No agent or
     employee of Landlord  has  authority to make or offer any  modification  or
     amendment hereof except as provided herein.

          23.  Captions.  The  captions  of the  paragraphs  in this  Lease are
     inserted and included solely for convenience and shall not be considered or
     given any effect in construing the provisions hereof

          24.  Mechanic's  Liens.  Tenant  shall,  within twenty (20) days after
     notice from  Landlord,  discharge or bond against any  mechanic's  lien for
     material or labor or other 'reason for which  mechanic's liens may be filed
     claimed to have been furnished to the Demised  Premises on Tenant's  behalf
     (except for work  contracted for by Landlord) and shall  indemnify,  defend
     and hold harmless Landlord from any loss incurred in connection  therewith.
     If Tenant  fails to do so.  Landlord  may  secure  such  discharge  or bond
     without liability to Tenant and all amounts paid and costs incurred therein
     by Landlord shall be payable by Tenant to Landlord as Additional  Rent with
     the next due installment of Minimum Rent.

          25.  Landlord's  Right  to  Cure.  Landlord  may  (but  shall  not  be
     obligated),  on five (5) days' notice to Tenant (except that no notice need
     be given in case of emergency) cure on behalf of, and without liability to,
     Tenant  any  default  hereunder  by  Tenant.  and the  cost  of  such  cure
     (including any attorney's  fees incurred)  shall be deemed  Additional Rent
     payable upon demand.

          26. Public Liability  Insurance.  Tenant shall at all times during the
     period  in which  it has any  occupancy  rights  in the  Demised  Premises,
     maintain in full force and effect comprehensive public liability insurance.
     naming  Landlord and its Building  management  firm.  if any. as additional
     insureds,  covering  injury  to  persons  in  amounts  at  least  equal  to
     $1.000,000 for bodily injury or death to any one person, $1.000,000 for any
     one occurrence. and $500.000 for property damage. occurring in or about the
     Demised Premises.  Tenant shall deliver to Landlord duplicate  originals or
     certificates  ' of such insurance at or prior to the date Tenant shall make
     any entry into the  Demised  Premises.  together  with  evidence of paid up
     premiums.  and shall deliver to Landlord  renewals  thereof at least thirty
     (30) days prior to expiration. All such policies of insurance shall provide
     that they shall not be  canceled  or amended  without at least  twenty (20)
     days' prior notice to Landlord.

          27.  Estoppel  Statement.  Tenant shall from time to time.  within ten
     (10) days after request by, Landlord.  execute.  acknowledge and deliver to
     Landlord a statement.  which may be relied upon by Landlord or any proposed
     mortgagee or ground lessor, certifying that this Lease is unmodified and in
     full  force  and  effect  (or that  same is in full  force  and  effect  as
     modified, listing the instruments of modification). the dates to which rent
     and other  charges  have been  paid,  and  whether  or not,  to the best of
     Tenant's knowledge,  Landlord is in default hereunder or whether Tenant has
     any claims or demands  against  Landlord  (and.  if so. the default.  claim
     and/or demand shall be specified).

          28. Quiet Enjoyment.  Tenant. upon payment of all rent and performance
     of all  obligations  imposed under this Lease,  shall have the peaceful and
     quiet enjoyment of the Demised Premises without hindrance or disturbance by
     Landlord  or  those  claiming  by,  through,  or under  Landlord,  subject,
     however,  to the terms of the Lease and to any  mortgagee or lease which is
     superior to this Lease.

          29. Brokers. Tenant represents and warrants that it has not dealt with
     any broker or agent in the  negotiation  for or the obtaining of this Lease
     and that there are no claims for  commissions or finders fees in connection
     herewith and agrees to indemnify  and hold  Landlord  harmless from any and
     all cost or  liability  for  compensation  claimed  by an  broker  or agent
     employed by Tenant or claiming to have been engaged by Tenant in connection
     with this Lease.

          30. Certain Meanings, Limitation of Liability-,,.

          A. Tenant.  The word "Tenant" as used in this Lease shall be construed
     to mean  tenants in all cases where there is more than one tenant,  and the
     necessary  grammatical changes required to make the provisions hereof apply
     to corporations,  partnerships or individuals.  men or women,  shall in all
     cases be  assumed as though in each case fully  expressed.  Each  provision
     hereof shall extend to and shall,  as the case may require.  bind and inure
     to the benefit of Tenant and its successors and assigns, provided that this
     Lease shall not inure to the benefit of any assignee of Tenant  except upon
     the express written consent of Landlord as herein provided.

          B.  Landlord.  Mortgagee-.  The term  "Landlord" as used in this Lease
     means the fee owner of the Building or. if different. the party holding and
     exercising  the right.  as against all others  (except space tenants of the
     Building)  to  possession  of the  entire  Building.  Landlord  above-named
     represents that it is the fee owner as of the date hereof.  In the event of
     the  voluntary  or  involuntary  transfer of such  ownership  or right to a
     successor-in-interest of Landlord,  Landlord shall be freed and relieved of
     all liability and obligation  hereunder which shall  thereafter  accrue and
     Tenant shall look solely to such  successor-in-interest for the performance
     of the  covenants and  obligations  of the Landlord  hereunder  which shall
     thereafter     accrue.     The    liability    of    Landlord    and    its
     successors-in-interest,  under  or with  respect  to this  Lease,  shall be
     strictly  limited to and  enforceable  only out of its or their interest in
     the  Buildings.  and shall not be enforceable  out of any other assets.  No
     mortgagee or around  lessor which shall succeed to the interest of Landlord
     hereunder  (either in terms of ownership or possessor rights) shall: (i) be
     liable  for any  previous  act or  omission  of a prior  landlord;  (ii) be
     subject to any rental offsets or defenses  against a prior  landlord- (iii)
     be bound by any  amendment of this Lease made without its written  consent.
     or by payment  by Tenant of rent in  advance  in excess of one (1)  month's
     rent;  (iv) be liable for any security not actually  received by it: or (v)
     be liable for an initial construction of the Improvements to be made to the
     Demised  Premises.  Subject to the  fore-foregoing,.  the provisions hereof
     shall be  binding  upon and  inure to the  benefit  of the  successors  and
     assigns of Landlord.

          Miscellaneous.

          A. Nonwaiver. The failure of either party to insist in any one or more
     instances upon the strict performance of any one or more of the agreements.
     terms,  covenants,  conditions or obligations of this Lease. or to exercise
     any right. remedy or election herein contained. shall not be construed as a
     wavier or relinquishment in the future of such performance or exercise. but
     the same shall continue and remain in full force and effect with respect to
     any subsequent breach. act or omission.

          B. Partial  Payment.  No payment by Tenant or receipt by Landlord of a
     lesser  amount  than  the  correct  Minimum  Rent or  Additional  Rent  due
     hereunder shall be deemed to be other than a payment on account,  nor shall
     any  endorsement or statement on any check or any letter  accompanying  any
     check  or  payment  be  deemed  to  effect  or   evidence   an  accord  and
     satisfaction.  and Landlord may accept and negotiate .3uch check or payment
     without  prejudice to Landlord's right to recover the balance or pursue any
     other remedy in this Lease or at law provided.  No term or condition to the
     contrary set forth on such check or payment  shall be effective or valid to
     any extent.

          C.  Requested   Modifications.   If.  in  connection  with  obtaining,
     continuing  or  renewing  financing  for which the  Building or the Demised
     Premises or any interest therein represents collateral in whole or in part.
     a banking.  insurance  other lender (even if the lender is Landlord)  shall
     require  modifications  of this  Lease as a  condition  of such  financing.
     Tenant hereby  expressly  agrees to consent to any such required changes or
     modifications  to this  Lease.  except  such as would  alter the  amount of
     Minimum Rent or the term hereof or  substantially  impair  Tenant's use and
     enjoyment of the Demised Premises for the uses permitted herein.

          D. Partial Invalidity.  If any of the provisions of this Lease, or the
     application  thereof to any person or circumstances.  shall. to any extent.
     be  invalid  or  unenforceable,   the  remainder  of  this  Lease.  or  the
     application  of such  provision or provisions  to persons or  circumstances
     other than those as to whom or which it is held  invalid or  unenforceable.
     shall not be affected  thereby,  and every provision of this Lease shall be
     valid and enforceable to the fullest extent permitted by law.

          E. Common Facilities.  Tenant and its agents.  employees and invitees,
     shall have the right to use, in  common-non  with all others  granted  such
     rights by Landlord,  in a proper and lawful manner, the common walkways and
     sidewalks  on the Land,  the common  entranceways,  elevators  and  lobbies
     furnshing, access to the Demised Premises, and the common lobbies. hallways
     and toilet  rooms on the floors on which the Demised  Premises are located.
     Such  use  shah  be  subject  to such  reasonable  rules,  regulations  and
     requirements  as  Landlord  may from time to time  prescribe  with  respect
     thereto.

          F.  Governing.  Law-.  This Lease shall be governed in all respects by
     the laws of the State of South Carolina.

          32. Parking  Landlord shall provide and maintain  parking,-,  areas in
     -good  condition  in common with other  tenants in the  Building.  Landlord
     reserves the right to control the method.  manner and time of park-in-.  to
     designate or assign  specific spaces to Tenant and to designate areas where
     tenants employees working regularly in the Building must park. Tenant shall
     require its employees to abide by any such rules.

          33.   Effectiveness  of  Lease.  The  submission  of  this  Lease  for
     examination does not constitute a reservation or offer of nor an option for
     the Demised  Premises or any other space within the Building and shall vest
     no right in either  party.  This  Lease  shall not be  binding  nor  become
     effective to any degree unless and until it is fully executed and delivered
     by both parties.

          34. Rent A Separate Covenant. Tenant shall not for any reason withhold
     or reduce Tenant's  required payments of rentals and other charges provided
     in this Lease, it being agreed that the  obligations of Landlord  hereunder
     are independent of Tenant's obligations.

          35. Joint And Several Liability. If two

          A. or more individual  corporations,  partnerships,  or other business
     associations  (or any  combination  of two or more thereof) shall sign this
     Lease as  Tenant,  the  liability  of each  such  individual,  corporation.
     partnership or other business association to pay rent and perform all other
     obligations  hereunder  shall be deemed to be joint  and  several.  In like
     manner,  if the Tenant named in this Lease shall be a partnership  or other
     business  association,  the  members of which are,  by virtue of statute or
     -general  law,  subject to personal  liability,  the liability of each such
     member shall be joint and several.

          36.  Corporate  Tenancy.  If Lessee is a corporation.  the undersigned
     officer of Lessee hereby  warrants and certifies to Lessor that Lessee is a
     corporation  in good standing and is authorized to do business in the State
     of South  Carolina.  The  undersigned  officer  of  Lessee  hereby  further
     wan-ants  and  certifies  to  Lessor  that  he or she as  such  office,  is
     authorized and empowered to bind the corporation to the terms of this Lease
     by his or her signature thereto.

          37. Force Majeure.  Whenever a period of time is herein prescribed for
     action to be taken by Landlord. Landlord shall not be liable or responsible
     for. and there shah be excluded from the  computation of any such period of
     time. any delays due to strikes.  riots, acts of God. shortages of labor or
     materials,  theft.  fire.  public enemy,  injunction.  insurrection,  court
     order.   requisition  of  other   governmental  body  or  authority.   war,
     governmental  laws,  regulations or restrictions or any other causes of any
     kind whatsoever are beyond the control of Landlord.

          IN WITNESS  WHEREOF.  the parties  hereto have caused this Lease to be
     executed by their duly  authorized  representatives  the day and year first
     above written.

                                                          TENANT:
                                                           ENVIROMETRICS, INC
                                                           By:
                                                       Its:

LANDLORD:
LPC of S.C.. Inc.
By:
Its:
WITNESS:

                              SCHEDULE OF EXHIBITS

EXHIBIT                    CONTENTS

A                          FLOOR PLAN

A-1                        LANDLORD'S WORK

B                          RENT SCHEDULE

c                          CONFIRMATION OF LEASE TERM

D                          BUILDING AND REGULATIONS

E                          JANITORIAL SPECIFICATIONS

                                                WORK LETTER

     1. Prior to the  Commencement  Date,  Landlord  shall, at its sole cost and
expense, do the work (herein called the "Work") necessary to furnish and install
within the Premises in accordance with the Working,  Drawings (defined below) to
be prepared  by the  Landlord  and  approved  in  writing,  by the  Tenant,  the
following  Building  Standard Tenant  Improvements  and Allowances  (hereinafter
referred  to as  "Build  Standard")  and  any  Tenant's  Non-Standard  Work  are
collectively referred to herein as the "Leasehold Improvements":

         A.       BUILDING STANDARD TENANT IMPROVEMENTS

     1. CEILINGS Lay-in  acoustical tile ceiling system (24" x 24" tile material
suspension system with cross "Ts") in pattern indicated on ceiling plan as it is
developed.

     2. HEATING,  VENTILATION, AND AIR CONDITIONING Heating, ventilating and air
conditioning  (HVAC)  system on each floor.  HVAC system  consists of  packaged,
roof-mounted, cooling only, variable air volume air conditioning units (one unit
for each floor);  primary  duct system from roof  mounted  units to variable air
volume  (VAV),  or  fan-powered  variable  air volume  (FPVAV)  terminal  units:
secondary duct system from each VAV or FPVAV  terminal unit to air  distribution
devices (diffusers,  registers and grilles). Landlord's HVAC system will provide
conditioned air in quantities  necessary to support typical office use occupancy
(one person per 150 square feet two watts per square foot lighting, one watt per
square foot miscellaneous sensible heat load for office equipment).

     3. TOILET ROOMS Centrally located toilet rooms on each floor, including all
plumbing  fixtures,  toilet  accessories,   lighting,  wall,  floor  an  ceiling
finishes.

     4. ELECTRICAL,  TELEPHONE,  AND JANITOR CLOSETS Electrical,  telephone, and
janitor closets will be provided on each floor.

     5. TENANT FINISH See attached Contractor's Work Letter.

OFFICE: (803)566-0656                                       FAX-. (803)566-1210
                                       CONTRACT PROPOSAL

JANUARY 4,1996

LIBERTY        PROPERTIES
ATTN.:         BOB CALDWELL

     Premises below described:  Carolina  Services,  Inc. (here inafter known as
Contractor),  hereby  proposed to perform  the  following  work,  and to furnish
necessary  material,  labor and workmanship to install,  construct and place the
improvement  according to do following  specification terms and condition on the
premises below described.

JOB.  FABER PLACE, 4055 FABER PLACE DR. 2ND FLR -TRICO

Contractor submits the specification and estimates for the following:

     CONSTRUCT  WALLS AS PER PLANS IN Rm.  104 AND 109.  WALLS TO BE 3 5/8 Metal
Studs  WITH1/2'  DRYWALL  BOTH SIDES BUILT FLOOR TO WIDER SIDE OF CEILING  GRID,
FURNISH AND INSTALL  FOUR HOLLOW  METAL DOORS FRAMES AND SOLID CORE BIRCH VENEER
DOOR WITH HARDWARE AND FINISH TO MATCH  EXISTING.  RM. 104 AND  109.FURNISH  AND
INSTALL TWO WOOD FRAME FIXE GLASS WINDOWS IN ROOM 109. PAINT WALL TWO COATS FLAT
LATEX COLOR TO BE SELECTED  WINDOW AND DOOR FRAMES TWO COATS SEMI GLOSS COLOR TO
BE SELECTED DOORS T\STAINED TO MATCH EXISTING AND REMOVE.  AND REPLACE CARPET IN
RM. 10 1,  102,103,104,105,107AM 109. REMOVE AND REPLACE ALL COVE BASE. RELOCATE
AND/OR ADD FOUR SPRINKLER  HEADS,  ELECTRICAL  -RELOCATE TWO 2/4 LIGHTS ADD FOUR
2.4 LIGHTS TOMATCH EXISTING ADD FOUR SWITCHES ADD FIVE OUTLETS

                                                     TOTAL $14.599.00

                                   EXHIBIT ""

                                  RENT SCHEDULE

     Minimum  Rent  during the Lease Term and each  renewal  period  shall be as
follows for approximately 9,094 square feet of space:

                                   Suite 201
                                   6,243 SF
Effective Dates            Rate       Annual        Monthly
02/01/96 - 01/31/97       $14.00    $87,402.00     $7,283.50
02/01/97 - 01/31/98       $15.50    $96,766.50     $8,063-88
02/01/98 - 01/31/99       $16.12   $100,637.16     $8,386.43

                                   Suite 210
                                   2,851 SF
Effective Dates        Rate          Annual        Monthly
02/01/96 - 01/31/97   $16.00       $45,616.00     $3,801.33
02/01/97 - 01/31/98   $16.64       $47,440.64     $3,953.39
02/01/98 - 01/31/99   $17.31       $49,350.81     $4,112.57

                        Combined Suites 201 &
                               9,094 SF
Effective Dates        Rate          Annual        Monthly
 02/01/96 -           $14.63      $133,018.00    $11,084.83
 01/31/97
 02/01/97 -           $15.86      $144,207.14    $12,017.26
 01/31/98
 02/01/98 -           $16.49      $149,987.97    $12,499.00
 01/31/99

                                    EXHIBIT C

                           CONFIRMATION OF LEASE TERM

     AGREEMENT  made this 17 day of January,  1996,  by and between LPC of S.C.,
Inc.,  (hereinafter  referred to as "Landlord")  and Trico  Envirometrics,  Inc.
(hereinafter referred to as "Tenant").

                                   WITNESSETH:

     WHEREAS, under a lease dated the day of January, 1996, between Landlord and
Tenant (the  "Lease"),  Tenant  leased from Landlord  certain  space  containing
approximately  9,094 square feet on the 2nd floor in Landlords  building at 4055
Faber  Place  Drive,  North  Charleston,  South  Carolina,  upon the  terms  and
conditions set forth in the Lease; and

     WHEREAS,  the Lease  provides that the parties shall execute a confirmation
of  certain  information  when  the  commencement  date  of the  term  has  beer
determined;

     NOW,  THEREFORE the parties hereto confirm that the Rent  Commencement Date
is Feb 1, 1996 and the Term  Commencement  Date is Feb 1,  1996 the  Lease  Term
shall  continue  until  midnight on the 31 day 1999 unless sooner  terminated as
provided in the Lease.

     Tenant  acknowledges  that  it is in  possession  of the  Demised  Premises
pursuant  to the Lease  that rent the  amount  specified  in the Lease has begun
accruing,  in accordance  with the terms of the Lease;  that said  premises,  as
completed,  have been accepted by Tenant as being- in accordance  with the terms
of the Lease except as follows:

     Landlord and Tenant both acknowledge that as of the date hereof,  the Lease
is in full force by the other under the Lease except as follows:

     This Memorandum is hereby  incorporated into and made part of the Lease. IN
WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  document to be duly
executed the day and year first above written.  LANDLORD:  TENANT:  LPC of S.C.,
Inc. Envirometrics. Inc.

                         BUILDING RULES AND REGULATIONS

     1. The sidewalks,  entryways,  passages, corridors, stairways and elevators
shall not be obstructed  by any of the tenants,  their  employees or agents.  or
used by them for  purposes  other  than  ingress  or  egress  to and from  their
respective suites.

     All safes or other  heavy  articles  shall be carried up or into the leased
premises  only,  at such times and in such  manner  shall be  prescribed  by the
Landlord.  and the  Landlord  shall in all  cases  have the  right to  specify a
maximum  weight and proper  position or location of any such safe or other heavy
article.  Any damage done to the Building by taking in or removing,  any safe or
from  overloading any floor in any way shall be paid by the Tenant.  The cost of
repairing  or  restoring  any part of the  Building  which  shall be  defaced or
injured by a tenant, its agents, invitees or employees, shall be paid for by the
tenant.

     2.   Landlord   shall   have  the  right  to   approve   all   contractors'
representatives and installation  technicians  rendering any contract service on
or to the leased  premises for the tenant  before  performance.  This  provision
shall apply to all work  performed in the Building,  including  installation  of
telephones,  telegraph  equipment  computer  equipment,  electrical  devices and
attachments and installations of any nature affecting,  floors, walls, woodwork,
windows, ceilings, equipment or any other physical portion of the Building.

     3.  Landlord  shall  furnish a  reasonable  number of door keys to Tenant's
Demised Premises and/or  Building,  which shall be surrendered on termination of
the Lease.  Landlord reserves the right-ht to require a deposit for such keys to
insure their return at the termination of the Lease.  Tenant shall -et keys only
from  Landlord  and shall not obtain  duplicate  keys from any  outside  source.
Further.  Tenant  shall not alter the locks or effect any  substitution  of such
locks as are presently being- used in Tenant's Demised Premises or the Building.
No additional  locks shall be placed upon any doors without the written  consent
of the Landlord. All keys shall be surrendered upon the termination of a lease.

     4. No  windows  or other  openings  that  reflect  or admit  light into the
corridors  or  passageways,  or to any  other  place in the  Building,  shall be
covered or obstructed BV any of the tenants.

     5. The water  closets  and other water  fixtures  shall not be used for any
purpose  other  than  those for  which  they were  constructed,  and any  damage
resulting  to them from misuse or abuse by a tenant or its agents,  employees or
invitees, shall be borne by the tenant.

     6. No person shall disturb the occupants of the Building, by the use of any
musical  instruments,  the making or  transmittal  of noises  which are  audible
outside the leased premises,  or any unreasonable  use. No dogs or other animals
or pets of any kind will be allowed in the Building.

     7. No bicycles or similar vehicles will be allowed in the Building.

     8.  Nothing  shall be thrown out the  windows of the  Building  or down the
stairways or other passages.

     9. Tenant  shall not be  permitted  to use or to keep in the  Building  any
kerosene.  camphene,  burning, fluid or other illuminating- materials, or to bum
any article or material (except ordinary smoking tobacco products).

     10. If any  tenant  desires  telegraphic.  telephonic  or other  electrical
connections, Landlord or its agents will direct the electricians as to where and
how the  wires may be  introduced,  and  without  such  directions  no boring or
cutting for wires will be permitted. 26

     11. No portion  of the  Building  shall be used for the  purpose of lodging
rooms or for any immoral or unlawful purposes.

     12. The delivery of supplies to tenants in the  Building  will be permitted
only in a manner and at times approved by the Lessor.

     13. All entrance  doors  leading from the hallways are to be kept closed at
all times.

     14.  Landlord  reserves  the  right  at  all  times  to  exclude  newsboys,
loiterers.  vendors,  solicitors,  and peddlers from the Building and to require
registration  or  satisfactory  identification  or credentials  from all persons
seeking access to any part of the Building-  outside  ordinary  business  hours.
Landlord  will  exercise its best  judgment in the execution of such control but
not be liable for the granting or refusal of such access.

     15. Landlord  reserves the right at all times to exclude the general public
from the  Building  upon  such  days and at such  hours  as in  Landlord's  sole
judgment will be in the best interest of the Building- and its tenants.

     16. No wires of any kind or type (including but not limited to TV and radio
antennas) shall be attached to the outside of the Building and no wires shall be
run or installed in any part of the Building,  without  Landlord's prior written
consent.

     17. If the Demised  Premises are  furnished  with  carpeting,  Tenant shall
provide a Plexiglas  or  comparable  carpet  protection  mat for each desk chair
customarily  used by Tenant.  For  default or  carelessness  in these  respects,
Tenant shall pay Landlord the cost of repairing- or replacing  said carpets,  in
whole or in part, as Additional  Rent when, in Landlord's  sole  judgment,  such
repair or replacement is necessary.

     18. No smoking is allowed in the  interior  common  areas of the  Building.
Smoking may be permitted in designated exterior areas on the Property.

               SPECIFICATIONS FOR CLEANING AND JANITORIAL SERVICES
DAILY:

     1. All desks and other furniture will be dusted with specially treated dust
cloths.

     2. All window sills, chair rails, baseboards.  molding, partitions, picture
frames under six feet in height will be hand dusted and wiped clean.

     3. All floors will be dust mopped with specially treated dust mops.

     4. All bright metal work will be maintained  and kept in a clean,  polished
condition.

     5. All drinking fountains will be thoroughly cleaned and sanitized.

     6. All stairways will be vacuumed or mopped as needed.

     7. Replacement of light bulbs as needed.

     8. All elevators  will be wet mopped,  once coat of finish applied to floor
and machine  buffed.  If floors are carpeted,  carpet will be vacuumed  nightly.
Interior of cabs will be wiped clean and all metal hardware polished.

     9. Empty, clean and dust all wastepaper  baskets,  ash trays,  receptacles,
etc.

     10. Remove trash and wastepaper to designated areas.

     11. Carpeting and rugs to be vacuumed nightly.

     12. All tile floors in all areas will maintain a satin  finish.  Trafficked
areas to receive  regularly  programmed  floor  maintenance to insure luster and
remove black marks and scuffs.

LAVATORIES

     1. Floors to be swept and washed, using- antiseptic liquid detergent.

     2. Bowls,  urinals and bases will be cleaned nightly. A safe antiseptic and
deodorant bowl cleaner will be used.

     3. All metal and mirrors will be cleaned and polished.

     4. Fill and maintain mechanical  operations of all tissue,  towel. soap and
sanitary napkin dispensers. Materials to be supplied from contractor's stock.

     5. Remove wastepaper and refuse.

WEEKLY:

     1.  Spot clean all interior partition -glass as required.

     2.  Remove  fingerprints.  smudges and scuff  marks from all  vertical  and
horizontal surfaces (doors, walls, sills) under six feet in height.

     3. Wash and  refinish  resilient  floors in public  areas,  strip,  wax and
polish as needed.

MONTHLY:

     1. Polish and buff (no wax) resilient floors in tenant areas as needed.

     2. Dust all  louvers,  grills  and other  than  flush  light  fixtures.

OUARTERLY:

     1. Dust clean all vertical  surfaces;  such as walls,  partitions,  doors,
etc. not reached in nightly cleaning.

EVERY FOUR MONTHS:

     Wax and buff all resilient  flooring in tenant areas, or as needed.  Floors
shall be stripped,  rewaxed and buffed when required. Unusual traffic conditions
will receive special attention.

EVERY SIX MONTHS:

     1. Dust and damp wipe all ceiling vents.

     2. Wash windows, inside and out.

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