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                   MANAGING DIRECTOR - EMPLOYMENT AGREEMENT
                 Dade Behring Holding GmbH, Frankfurt am Main,
         Germany, ("the Company"), represented by its sole shareholder

                               Dade Behring, Inc.
                              Deerfield, Illinois
                                      USA

                                      and

                              Mr. Friedhelm Blobel
                                   754 Ashby
                             Palo Alto, California
                                      USA

                                    Preamble

1.   The Company is part of the Dade Behring Group (Dade Behring Holdings, Inc.,
     and its subsidiaries).

2.   Friedhelm Blobel has been employed with companies of the former Behring
     Group since January 1996, most recently with Behring Diagnostics, Inc.,
     (now named Syva Company), San Jose, California, USA.

3.   Effectively October 5, 1998, (the "Effective Date") Friedhelm Blobel (the
     "Managing Director") shall be appointed Managing Director of the Company.
     Friedhelm Blobel shall also be responsible for the global Microbiology
     business which has major operations in the USA and Germany.

4.   All prior employment and service agreements of the Managing Director with
     the Company, with other companies of the former Behring Group and of the
     present Dade Behring Group shall terminate as of the Effective Date,
     including the employment contract Behring Diagnostics, Inc.

5.   As of the Effective Date, the Company and the Managing Director enter into
     the following Managing Director Employment Agreement, of which this
     Preamble is an integral part:

                                       I.
                          Position and Scope of Duties
                                        
1.   The Managing Director shall be appointed managing director of the Company.

2.   The Managing Director shall conduct the business of the Company in
     accordance with statutory law, the provisions of the Articles of the
     Company and in 
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     accordance with the general or specific directives and instructions of the
     shareholders meeting.

3.   In connection with this Agreement and without additional remuneration, the
     Managing Director shall, upon request of the Company, also assume functions
     in other enterprises which are affiliated with the Company ((S) Stock
     Companies Act).  This applies accordingly with respect to honorary
     functions in associations and professional organizations, in which the
     Company is a member.  The Managing Director shall act as Group, President.

                                      II.
                                Other Activities
                                        
1.   The Managing Director will devote all his working time, knowledge and
     skills to the business of the Company.  Any other activity which is for
     remuneration or which normally would be for remuneration, considering its
     type and scope, and the direct or indirect participation in a business
     having the same or similar business purposes, or any activity in the
     supervisory board of such business, or the participation as general partner
     in any commercial partnership, regardless of its purpose, requires in each
     specific instance the prior written approval of the shareholders' meeting.
     This provision shall also apply to activities and to the assumption of
     positions in associations and professional organizations.

2.   Scientific and literary activity is permitted, provided that it does not
     adversely affect the working capacity and time of the Managing Director and
     does not divulge confidential information.
 
3.   Publications and lectures affecting the interests of the Company or any of
     its affiliated companies ((S) Stock Companies Act) require the prior
     approval of the shareholders meeting.

                                      III.
                     Compensation and Expenses, Relocation
                                        
l.   The Managing Director shall be remunerated as follows:

     (a) He shall receive an annual fixed salary at a rate of $270,000 gross (in
         words: two hundred seventy thousand US dollars) (the "Base Salary").
         In the year in which this Agreement commences, as well as the year it
         terminates, the Fixed Salary shall be paid pro rata temporis.  The Base
         Salary shall be paid in 26 equal installments.  The Base Salary shall
         be regularly reviewed, in line with Company's practices.

     (b) The Managing Director shall be eligible to participate in the Dade
         Behring Management Incentive Compensation Plan ("MICP"), as amended
         each fiscal year.  For fiscal year 1998, the full year 1998 incentive
         target is 50% 
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         of the Base Salary which represents US $135,000. Payments under MICP
         shall be made only if and to the extent that the requirements specified
         in the respective MICP have been met.

2.   The Managing Director shall be eligible to participate in the Dade Behring
     Holdings, Inc., Management Stock Option Plan, as established by the Board
     of Directors of Dade Behring Holdings, Inc., for the senior executives of
     the Dade Behring Group companies.

     In particular, the Managing Director shall be offered a grant of stock
     options of 64,000 with a strike price of US $34.50 per share, subject and
     pursuant to the Dade Behring Holdings, Inc. Management Stock Option Plan.
     These options will vest over a five year period in 20% increments. The
     first 20% - 12,800 shares will vest on October 1, 1998.

3.   The payment of the Base Salary is full compensation for all activities of
     the Managing Director including such out of the usual office hours.

4.   The Company shall reimburse the Managing Director for all reasonable
     expenses incurred by him in the course of performing his duties under this
     Agreement which are consistent with the Company's prevailing policies with
     respect to travel, entertainment, and other business expenses, subject to
     the Company's requirements with respect to reporting and documentation of
     such expenses.

5.   As a US based employee, the Managing Director shall be eligible to
     participate in the US Dade Behring employee benefit programs.

6.   The Managing Director's participation in the German Pensionskasse shall be
     grandfathered for the duration of this contract.

7.   The Company shall pay for the relocation costs according to the Company's
     relocation policy for the Managing Director to relocate back from the U.S.
     to Germany upon termination of this contract.

                                      IV.
                     Inventions, Copyright Protected Works
                                        
With respect to inventions, proposals for technical improvements an copyright
protected works of the Managing Director, the regulations applicable to
employees shall apply accordingly.

                                       V.
                                    Vacation
                                        
The Managing Director is entitled to an annual vacation of 4 weeks.  The
scheduling of the vacation shall be agreed upon by the Managing Director and the
Chief Executive 
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Officer of Dade Behring Inc. taking into consideration the personal wishes of
the Managing Director and the interests of the Company. Vacation not taken
within three months after the end of a calendar year shall be forfeited without
any right of compensation unless otherwise agreed in writing.

                                      VI.
                           Payment in Case of Illness
                                        
In the case of incapacity to work due to illness or accidental disability, the
Company shall continue to pay the Managing Director the remuneration hereunder
for a period of up to 12-months.

                                      VII.
                                    Secrecy
                                        
1.   The Managing Director shall not, during the term of his employment and
     thereafter, disclose to any third party any of the business or operational
     secrets of the Company or any affiliated company which have been entrusted
     or otherwise become known to him, and he shall not utilize such Buenos or
     operational secrets himself.  The term "business and operational secrets"
     includes all business, operational, organizational and technical knowledge,
     transactions and information which is known only to a limited number of
     persons and which according to the intentions of the Company is not
     supplied to become known to the public.

2.   Business records of any kind, including private notes concerning the
     company's affairs and activities shall be used only for business purposes.

3.   Business and operational records which are in the possession of the
     Managing Director within the scope of his employment shall be carefully
     kept and shall be returned to the Company at any time upon request, at the
     latest upon termination of the employment.  The same applies to any other
     items owned or controlled by the Company. The assertion of any right of
     retention is excluded.

                                     VIII.
                               Term of Employment
                                        
1.   The Employment agreement shall commence on the Effective Date and shall be
     for a two-year period.  This contract is subject to renewal one year prior
     to the contract expiration.  The Managing Director may terminate this
     Agreement with a twelve months notice period.

2.   The Company may at any time temporarily or permanently release the Managing
     Director from his duties and/or remove him from his office as managing
     director.  The remuneration claims of the Managing Director remain
     unaffected.
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3.   The right to termination with immediate effect for a compelling reason
     remains unaffected.

                                      IX.
                                 Miscellaneous
                                        
1.   This Agreement embodies the entire understanding between the parties
     relating to the employment.  There are no ancillary agreements.  Any
     amendments or additions to this Agreement shall be in writing to be
     effective.

2.   Should any provision of this Agreement be or become void, the validity of
     the other provision shall not be affected thereby.

3.   This Agreement shall be governed by German law.  However, Clause III.2 -
     Stock Option Grant-shall be governed by the laws applicable to the Dade
     Behring Holdings, Inc. management Stock Option Plan.

                           On behalf of the Company:

          Place: Marburg, Germany
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          Date: August 19th 1998
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          Signature: /s/Thomas E. Hill
                     --------------------------------------
                     Thomas E. Hill
                     Senior Vice President
                     Human Resources of Dade Behring, Inc.

                               Managing Director:

          Place: Marburg, Germany
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          Date: August 19th 1998
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          Signature: /s/Friedhelm Blobel
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                     Friedhelm Blobel