®

2021 CHEMICAL SELECTION GUIDEWARNING
The information in the 2021 Moldex Chemical Selection Guide is dated and was accurate to the best of Moldex’s knowledge as ofJanuary 2021. This 2021 Guide supercedes all previous Guides, including printed and electronic versions. If you have an electronic
version other than the 2021 Guide please delete it from your computer. The 2021 Guide can be accessed online at
http://www.moldex.com/pdf/datasheets/chemicalselectionguide.pdf
Before selecting Moldex respirators for use, it is important that you refer to the most recent Guide available. If you have any questions
on how to use this guide or on the selection and use of any respiratory protection device, call the Moldex Technical Services
Department at +1 (800) 421-0668, +1 (310) 837-6500, ext. 512/550 or tech@moldex.com.
Products listed in this Guide are subject to the Moldex­limited warranty located on the back cover.
The user must use the NIOSH multi-vapor program in conjunction with this guide to determine the service life of cartridges.

TERMS OF USE“The information contained in this guide are only guidelines. It is the user’s responsibility to make a respirator equipment selection basedon factors only known to the user including, but not limited to worksite specific information, air sampling, warning properties, change outschedules and any other criteria that may affect the health and safety of a worker. If you are uncertain as to the appropriateness of aparticular device for a specific situation, do not use OR ALLOW USE OF any Moldex –Metric Inc. (Moldex) respirator, DO NOT ENTER
OR ALLOW OTHERS TO ENTER ANY AREA WHERE RESPIRATORY PROTECTION IS REQUIRED and seek the advice of a Healthand Safety Professional.”
Moldex makes no warranties, understandings or representations, whether expressed, implied, or statutory regarding this Chemical
Selection Guide. Moldex specifically disclaims any warranty for merchantability or fitness for a particular purpose. In no event shallMoldex or anyone else who has been involved in the creation, production or delivery of this website be liable for any direct, indirect,
special, incidental or consequential damages arising out of the use of or inability to use this respirator selector or for any claim by anyother party. Information obtained from the Moldex Chemical Selection Guide serves as a guideline only. Please refer to national andlocal standards for detailed information about respiratory protection requirements and utilize the services of an Industrial Hygienist orother Safety and Health Professional to make final decisions about selection of proper respiratory equipment for your workplace or use.
I have read and accept the Terms and Conditions.

INTRODUCTION
This Guide may be used as an aid to select appropriate respiratory protection for
specific contaminants. Because conditions at the worksite can vary substantially, acomprehensive evaluation must be made to determine the correct respiratory protection. When contaminants at a worksite have been identified and concentrations
measured, this Guide may be used to help select the appropriate respirator. Only
qualified professionals, familiar with the actual working conditions and knowledgeable in the benefits and the limitations of respiratory protection equipment, shouldmake the selection. Once a respirator has been selected, it is important to continually monitor its effectiveness, as well as the dynamic worksite situation. If selection
criteria changes, including but not limited to worksite conditions or standards andregulations, a new evaluation must be made to determine the appropriate
respiratory protection.

* COMPREHENSIVE RESPIRATORY PROTECTION PROGRAM

Wherever respirators are used in a work environment, a comprehensive respiratory protection program must be implemented in accordance with OSHA 29 CFR
1910.134, as a minimum. This regulation covers permissible practice, written programs, training, maintenance and care, selection, use, fit testing, cleaning and storage, medical evaluation, breathing air quality, identification of filters and cartridges,
program evaluation, and record keeping. When a chemical cartridge respirator is used, it can only be used if a cartridge change schedule is developedin accordance with 29 CFR 1910.134 (d)(3)(III)(B)(2). If a change schedule is
not developed you should not use Moldex respirators. See pages 29-31 formore information.
RESPIRATOR FIT TESTS
Any respirator used by an employee must be fit tested to ensure thatthe respirator is providing adequate protection to the wearer. All Moldex
respirator users should be fit tested to ensure proper fit of the respirator.
OSHA 1910.134 describes the various types of fit tests that may be utilized.
ASSIGNED PROTECTION FACTORS (APF)
All Moldex respirators listed in this Guide are half mask or full face, negative pressure, air purifying respirators. Generally, these are assigned an APF of 10 or 50
respectively, unless a specific OSHA, Federal, State or Local standard assigns alower APF for a particular class of respirator to be used to protect against a particular substance. In such cases the lower APF must be used. A full facepiece respirator fitted using a qualitative fit test only receives an APF of 10.
OTHER PERSONAL PROTECTIVE EQUIPMENT (PPE)
Certain chemicals may require other forms of PPE in addition to respirators due toabsorption or damage to the skin, eyes or mucous membranes. When supplying
respiratory protective equipment, other PPE must also be considered. Failure toprovide appropriate protection with certain chemicals may result in adverse healtheffects and render the use of a respirator ineffective. Lastly, always consider all thehazards that an employee may be exposed to and the advantages and disadvantages of using a particular piece of equipment in concert with other items (e.g. hard
hats, gloves, faceshields, etc.).
When using any Moldex respirator, read all applicable warnings and information provided with it. Not all Moldex respirators have been sold withwarnings or use instructions for personnel involved in healthcare or related
situations, where there may be the possibility of contact with disease or biological hazards. If you are considering such uses, first call the Moldex Technical Dept., +1 (310) 837-6500 ext. 512/550 or +1 (800) 421-0668 ext. 512/550.
See additional warnings in packaging
or Moldex Website or page 4 of this guide.
EXPLANATION OF GUIDE FORMAT
Chemical Names listed are either those used by OSHA in 29 CFR 1910.1000,
NIOSH’s Pocket Guide to Chemical Hazards or ACGIH’s 2019 Guide to Occupational Exposure Values. Only substances that have OSHA Permissible Exposure Limits(PEL) and/or American Conference of Governmental Industrial Hygienists (ACGIH)
Threshold Limit Values (TLV) are listed in the Moldex suggestions section of thisguide, when appropriate.
CAS Numbers are below the name of most chemicals and are the Chemical
Abstracts Service (CAS) registry number. This number is unique for each chemical.
Synonyms listed are some of those common ‘‘other’’ names of a substance foundin various references, this list is not all inclusive.

**

Filter Type generally indicates what type of filter and/or cartridge may be considered for protection from a particular substance. Remember these suggestions are
not absolute. Selection must be based on considerationof the work and use situation encountered in a particular environment.
‘‘N’’ means Dusts and Non-Oil Based Mists‘‘R’’ means Dusts, and Oil and Non-Oil Based Mists with time restrictions‘‘P’’ means Dusts and Oil and Non-Oil Based Mists, extended life for Dusts
and Non-Oil Based Mists (see Moldex time restrictions on instructions)‘‘AM’’ means Ammonia/Methylamine

2‘‘AG’’ means Acid Gas‘‘FORM’’ means Formaldehyde“OV” means Organic Vapor“OV/AG” means Organic Vapor/Acid Gas“MULTI” means Multi Gas/Vapor“95” means 95% efficient“99” means 99% efficient“100” means 99.97% efficient“/” means OR. For example, 8970/8940 means you may use either filter.
“FF” means full face respirator; 9000 is suggested.
*Respirator users outside of the United States must comply with all theirapplicable regulations.
**Any non-water based liquids or mist should be considered oil-based, as wellas particulates that may have absorbed non-water/based component.
Note that combinations of the above may be listed. Also note that com­bination
Moldex cartridges (7300/8300) may be used where an OV or AG is listed, but theservice life of the cartridge will be considerably less for the particular substance.
A similar situation of reduced service life exists with the 7600/8600 multi-gas
cartridges used against various contaminants, see instructions for specificinformation.
Moldex Suggestions are the Moldex respirators that are appropriate for protection from the substance listed. For example, remember, anywhere the 2200N95(EZ 22) or 2300N95 (EZ 23) are suggested the 2400N95 (2800N95) or 2500N95(2940R95) may also be used. The 2400N95 or 2800N95 is usually suggested where protection from dusts or non-oil based mists is required andnuisance level (below the PEL) organic vapor odors are also present. The
2500N95 is usually suggested where protection from dusts or non-oil based
mists is required and nuisance level (below the PEL) acid gas irritants arealso present and 2940R95 for dusts and both oil and non-oil based mist.
Additionally, any situation where a particular Moldex product is suggested you may
move to a higher level of protection provided the type of protection is equivalent. For
example,– you may use the 2310N99 in place of the 2200N95 if dust or
non-oil based mist protection is required;– you may use the 7940/8940 in place of the 2310N99 if protection
from a dust, fume or mist is required;– you may use any N99 respirator/filter in place of any N95
respirator/filter.
– you may go from a half mask facepiece respirator to a full facepiece respirator with equivalent or higher filters/cartridges.
BUT– you may not go from 2200N95 to 7100/8100 to protect against
a fume because 7100/8100 is used to protect against organic
vapors only;AND– you may not go from a 7940P100/8940P100 to a 2300N95 to protect
against things such as lead because lead requires an N, R, or P100 filter, orfrom a 2730N100 to a 2400N95 because the efficiency level is lower.
– you may not go down from a full facepiece to a half mask without proper
evaluation of the workplace.
– Note: Where oil based aerosols are present only an R or P Series
filter may be used. Moldex suggests that you assume that any
non-aqueous liquid is oil-based.
TLV’s and PEL’s are listed where either one or both exist. We suggest that in cases
where both a TLV and PEL exist for a particular substance, that the lower of thetwo be used. You must also check if state and local regulations may be applicable.
An ‘‘o’’ next to exposure limit indicates it is an OSHA PEL. A ‘‘t’’ indicates
it is an ACGIH TLV.
Exposure limit concentrations may be listed as either ppm (parts per million), or
mg/m3 (milligrams per cubic meter),mppcf (million particles per cubic foot) or f/cc
(fibers per cubic centimeter of air).
All exposure limits refer to 8 hours per day, 40 hours per week Time Weighted
Averages (TWA), unless otherwise stated.
If a ‘‘c’’ appears next to a limit this indicates that it is a ceiling value which refers
to the concentration that should not be exceeded at any time during work exposure. If an ‘‘s’’ appears next to a limit this indicates that it is a short term exposure
limit (STEL), which refers to a 15 minute TWA (unless otherwise indicated), whichshall not be exceeded during a workday.

Both ‘‘s’’ and/or ‘‘c” designations may be in addition to or in lieu of anotherexposure limit.
A ‘‘skin’’ designation indicates that the substance can be absorbed through the skin,eyes or mucous membranes and appropriate measures must be taken to avoid
absorption.
A “SEN” indicates TLV-confirmed potential for worker sensitization as a result of
dermal contact and/or inhalation exposure based on the weight of scientificevidence.
A “DSEN” designation indicates that the substance may cause dermal sensitization
resulting from the interaction of the absorbed agent and ultraviolet light (i.e. photosensitization).
A “RSEN” designation indicates the substance may cause respiratory sensitization.
A “OTO” designation highlights the potential for a chemical to cause hearing impairment alone or in combination with noise, even below 85dBA.
For more specific definitions refer to 29 CFR 1910.1000 and to the
ACGIH TLV Booklet.
IDLH (Immediately Dangerous to Life and Health) and LEL (Lower Explosion Limit) are levels taken directly from the 2007 NIOSH Pocket Guide
to Chemical Hazards. In cases where the LEL is listed it is considered as
IDLH. In all cases the LEL is listed as 10% LEL to provide a safety factor
against explosion.

TLV-A5: Not Suspected as a Human Carcinogen: The agent is not suspect(t­-A5) ed to be a human carcinogen on the basis of properly conducted		 epidemiologic studies in humans. These studies have sufficiently
		 long follow-up, reliable exposure histories, sufficiently high dose,		 and adequate statistical power to conclude that exposure to the		 agent does not convey a significant risk of cancer to humans; OR,		 the evidence suggesting a lack of carcinogenicity in experimental
		 animals is supported by mechanistic data.
Substances for which no human or experimental animal carcinogenic data have beenreported are assigned no carcinogen designation.
		Exposures to carcinogens must be kept to a minimum. Workers exposed
to A1 carcinogens without a TLV should be properly equipped to eliminate
to the fullest extent possible all exposure to the carcinogen. For A1 carcinogens with a TLV and for A2 and A3 carcinogens, worker exposure by allroutes should be carefully
controlled to levels as low as reasonably achievable below the TLV.
OSHA designates carcinogens as follows:
CA: Carcinogen defined with no further categorization.

N.D. means not determined.
Comments list any additional points that should be noted such as:– If a substance is a carcinogen or a suspected carcinogen, it is listed here.
Note that only when OSHA or ACGIH consider a substancea carcinogen or suspected carcinogen it is listed. Carcinogen orsuspected carcinogen from any other organizations or agencies
have not been included in this Guide.
		

TLV-A4: Not Classifiable as a Human Carcinogen: Agents which cause(t-A4) concern that they could be carcinogenic for humans, but which can		 not be assessed conclusively because of a lack of data. In vitro or		 animal studies do not provide indications of carcinogenicity which		 are sufficient to classify the agent into one of the other categories.

Additionally,– If specific OSHA standards exist for a substance, it is listed
in this section.
– If OSHA is in the process of changing the regulation of a particular
substance, it is listed as ‘‘OSHA in the process of 6b rulemaking.’’– If ACGIH intends to change a TLV or a carcinogen designation,
it is listed as ‘‘ACGIH NIC (Notice of Intended Change).”

ACGIH designates carcinogens as follows:

TLV-A1: Confirmed Human Carcinogen. The agent is carcinogenic to(t-A1) humans based upon the weight of evidence from epidemiologic
		studies.

– If ACGIH has a Biological Exposure Indices (BEI), it is listed as‘‘Substance for which an ACGIH BEI exists.’’­­– If ACGIH intends to change a short term exposure limit or ceiling value, it
is listed as ACGIH NIC STEL/CEIL.

TLV-A2: Suspected Human Carcinogen. Human data are accepted as(t-A2) adequate in quality but are conflicting or insufficient to classify the		 agent as a confirmed human carcinogen; OR, the agent is carcino		 genic in experimental animals at dose(s), by routes(s) of exposure,		 at site(s), of histologic type(s), or by mechanism(s) considered		 relevant to worker exposure. The A2 is used primarily when there		 is limited evidence of carcinogenicity in humans and sufficient		 evidence of carcinogenicity in experimental animals with relevance		 to humans.

Pages 32-34 contains names of chemicals that Moldex does not recommend its
respirators to be used against. Refer to this list when you are not able to locate achemical in the Guide as it may be listed there. Moldex does not make suggestions
for chemicals not listed in the Guide.
Short service life means that cartridge will have a low service life.
REFERENCES:

TLV-A3: Confirmed Animal Carcinogen with Unknown Relevance to Humans:(t-A3) The agent is carcinogenic in experimental animals at a relatively
		 high dose, by route(s) of administration, at site(s), of histologic
		 type(s), or by mechanism(s) that may not be revelant to worker
		 exposure. Available epidemiologic studies do not confirm an
		 increased risk of cancer in exposed humans. Available evidence		 does not suggest that the agent is likely to cause cancer in humans
		 except under uncommon or unlikely routes or levels of exposure.

AIR CONTAMINANTS – PERMISSIBLE EXPOSURE LIMITS TITLE 29 CFR1910.1000
U.S. Department of Labor, Occupational Safety and Health Administration
POCKET GUIDE TO CHEMICAL HAZARDS U.S. Department of Healthand Human Services, Public Health Service, Centers for Disease Control, National
Institute for Occupational Safety and Health, 20072020 GUIDE TO OCCUPATIONAL EXPOSURE VALUES
American Conference of Governmental Industrial Hygienists, 2019

Example on how to use the Moldex 2021 Chemical Selection Guide
Chemical Name,

Common other Names

Suggested Respirator(s) for
Iron Oxide, Dust & Fume.

*ACGIH Threshold
Limit Value (TLV).

Other notes user must
be made aware of. Seeabove for explanations.

Iron Oxide, Dust & Fume Ferric Oxide FumeN
2310/2315N99 5mg/m3 (t)*,2,500mg/m3(as Fe)			
2400/2800N95 10mg/m3 (o)(as Fe)1309-37-1						water soluble						
						{CAS Number

Type of Filter or Cartridgethat is suggested for Iron
Oxide, Dust & Fume.

}*OSHA Permissible Exposure
Limit (PEL).
*For this example use ACGIH
TLV. When both the PEL &TLV are listed, it is suggested
to use the lower of the two.

t-A4, *Particulatecontaining no 		Asbestos
and < 1% Crystalline
Silica.

Concentration when Iron
Oxide, Dust & Fume becomes
immediately dangerous to lifeand health (IDLH).

3

SUPPLEMENTAL HAZARD WARNINGS FOR MOLDEX PARTICULATE RESPIRATORS
These are Warnings and Limitations that all users must be made aware of in addition to all warnings and other information on the outside of the Moldex respirator
packaging or other published related information. You must read and comply with these Warnings and Limitations at all times and if your employer has
determined that it is appropriate to use this respirator.
Proper use of this respirator may reduce but will not eliminate the risk of illness or death from exposure to some Chemical, Biological, Radiological, or
Nuclear (CBRN) hazards. CBRN hazards include, but are not limited to, bacteria, toxins, and viruses that can cause death, serious bodily injury or disfigurement. The
long-range and short-range risks of CBRN hazards and the amount and manner of exposure that may produce such risks remain to a great extent unknown. Use of thisrespirator must be in accordance with the Centers for Disease Control (CDC) Health Advisories or any other Local, State or Federal recommendations for use of respirators
against specific CBRN hazards. This respirator should not be used for many CBRN hazards.
There are more efficient models of respirators with a higher level of protection available from Moldex and other manufacturers. It is up to the employer,
and not Moldex, to determine if a respirator should be worn and if so, which type, size, level of protection, and model.
BACKGROUND
The National Institute for Occupational Safety and Health (NIOSH), a branch of the CDC and a U.S. Government agency, is responsible for testing and certifying respirators
for protection against hazardous industrial contaminants. Procedures for selecting and using proper respiratory protection are regulated by various governmental agencies,
such as the Occupational Safety and Health Administration (OSHA).
NIOSH tests and certifies certain respirators for use against chemical warfare agents, biological warfare agents or biohazards and provides advisory information for somebiohazards, but OSHA and other government agencies have not set any exposure standards for these agents or biohazards, in general.
Moldex does not make recommendations for any type of respirator to be used against CBRN hazards for workers or the general public.
You should know that there may be no obvious warnings of the presence or release of CBRN hazards.
WARNINGS FOR ALL USERS• This respirator must only be used for substances having Permissible Exposure Limits (PELs) and only where deemed appropriate by your employer.
• This respirator must be fit tested. If you cannot obtain a proper fit, do not use the respirator and do not enter the risk area.
• This respirator is not for use with beards or other facial hair that prevents direct contact between the face and sealing surface of the respirator.
• Moldex respirators, when properly fitted and used as part of a comprehensive respiratory protection program, may reduce wearer exposure to someairborne hazards, but not all.
• In the event of a sudden or unexpected CBRN hazard release, you may use this respirator for escape only if you have not been provided with a more
appropriate respirator for this type of situation. Do not remove the mask from the face until you have left the contaminated area.
• Do not reuse or store for reuse or hang around neck unless your employer specifically authorizes reuse. Dispose of respirator as a hazardous waste inaccordance with your employer’s directions.
• Use other personal protective equipment, as directed by your employer. Where appropriate use protective gloves when handling or removing respirator
and dispose of respirator and then gloves in accordance with your employer’s directions.
• If CDC or other Local, State or Federal agency issues new or revised guidelines for respirator use against specific hazards, users must strictly comply.
WARNINGS FOR USE OF PARTICULATE RESPIRATORS AGAINST BIOHAZARDSOSHA and CDC have recommended the use of any of the particulate respirators approved under 42CFR84 as a means of providing help in complying witha program designed to reduce occupational exposure to biohazards including but not limited to tuberculosis, COVID-19 or other airborne biologicalhazards.
The level of effectiveness of respiratory protection from biohazards cannot be determined with currently available data. However, proper use of
appropriate Moldex respirators in conjunction with a comprehensive respiratory protection program, including but not limited to fit testing, may reduce,
but will not eliminate, risk of infection.
• Be sure to read the Limitations outlined below and strictly follow all Warnings set forth under the WARNINGS FOR ALL USERS.
• When using any Moldex respirator, filter replacement and/or disposal must be handled in accordance with your Healthcare Facility’s comprehensive
respiratory protection program.
• If disinfectants are used to sanitize reusable facepieces, you must consult with your Healthcare Facility and run tests to ensure the compatibilityof any disinfectant with Moldex reusable facepiece materials. Use of disinfectants could impair the efficiency of the respirator and result in a lossof protection.
LIMITATIONS• Respirators may reduce but do not eliminate wearer exposure to airborne hazards or the risk of contracting any disease or infection. Only use
this respirator as part of a comprehensive respiratory protection program. You will receive no respiratory protection if this respirator is not properly
fitted and worn. Additionally, potentially hazardous particles, including infectious agents, smaller than the particle sizes used in NIOSH certifications
are likely to exist in certain environments. Some published data indicates that these smaller particles may not be filtered out as effectively as theparticle sizes used by NIOSH [N Series Count Median Diameter (CMD) 0.075 ± .02µm Geometric Standard Deviation 1.86 (GSD) and R & P Series CMD
0.185 ± .02µm 1.6 (GSD)] when certifying respirators. It is imperative that you determine the size and potential hazards of the particles that may bepresent in the environment before selecting appropriate respiratory protection, and that you refer to CDC guidelines when selecting and using any
respirator, particularly in environments where smaller types of particles, such as those referenced above, may be present.
• If the respirator comes in contact with blood or fluids, including body fluids, leave contaminated area as soon as possible and discard and replace
the respirator.
• Moldex respirators must not be used on children.
For further information on use of respirators contact Moldex at +1 (800) 421-0668 or +1 (310) 837-6500 ext. 512, your Employer, or CDC at www.cdc.gov or+1 (800) 311-3435 or +1 (404) 498-1515.

4CBRN-807 Rev. C 07/20										Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

Acetic Acid
64-19-7

Acetic acid (aqueous), Ethanoic acid,
FF-OV
Glacial acetic acid (pure compound),		
Methanecarboxylic acid [Note: Canbe found in concentrations of 5-8%
in vinegar]

Acetic Anhydride
108-24-7

Acetic acid anhydride, Acetic oxide,
FF-OV
Acetyl oxide, Ethanoic anhydride		

TLV(t) PEL(o)IDLHComments

9001/2/3+
7100

10ppm (o)(t)

50ppm

9001/2/3+
7100

5ppm (o)1ppm (t)200ppmt-A4AcetoneDimethyl Ketone, Ketone Propane
OV
7100/8100
250ppm (t)67-64-1
2-Propane			
1,000 (o)				
500 (s)(t)					

2,500ppm[10% Lower
explosion limit]

Substance for which
ACGIH BEI exists;
t-A4
Short service life

Acetonitrile
Cyanomethane, Ethyl
OV
7100/8100
75-05-8nitrile, methyl cyanide 							

500 ppm

t-A4

2ppm

t-A4			Short service life-A-

Acetylenedichloride
540-59-0
156-59-2
156-60-5

See 1,2-Dichloroethylene

Acetylene tetrabromide
79-27-6

See 1,1,2,2-Tetrabromoethane

Acrolein107-02-8

Acryladehyde; Acraldehyde;
FF-OV
9001/2/3+
Acrylic aldehyde; Allyl aldehyde;		
7100
Propenal; 2-Propenal			

Acetylsalicylic Acid
Aspirin
50-78-2		
		N

20ppm (t)40ppm (o)-skin-

0.1(t)-)c)0.1ppm(o)-skin-

EZ22/EZ23N95
2200/2300N95
2600/2700N95

Acrylamide
Acrylamide monomer, Acrylic amide,
OV/P100
7100+7940
79-06-1
Propenamide, 2-Propenamide		
8100+8940
								
Acrylic Acid
79-10-7

Acroleic acid, Aqueous acrylic acid
FF-OV
(technical grade is 94%), 		
Ethylenecarboxylic acid, Glacialacrylic acid (98% in aqueous solution),
2-Propenoic acid9001/2/3+
7100

		

5mg/m3 (t)N.D.

.03mg m3 (t)*;60mg/m3.3mg/m3 (o)		
-skin-		
-DSEN-		

t-A2; *Measured
as inhalable fraction
and vapor

2ppm,(t)-skin-t-A4

N.D.

Acrylonitrile monomer, AN,
OV;
7100/8100
2ppm (o)(t)*;85ppm
Cyanoethylene, Propenenitrile,
Change		
10ppm (c)(o) 15min		
2-Propenenitrile, VCN;
every shift		-skin-		Cyanoethylene											
						
Acrylonitrile
107-13-1

Dispose of
cartridge after shift;
See 29CFR1910.1045;
O-Ca; t-A3
Odor detectable
only above PEL

Allyl Alcohol
107-18-6

AA, Allylic alcohol, Propenol,
FF-OV
9001/2/3+
2ppm (o)1-Propen-3-ol, 2-Propenol, Vinyl 		7100
0.5ppm (t)carbinol			 -skin

20ppm

t-A4

Allyl Glycidyl Ether106-92-3

AGE, 1-Allyloxy-2, 3-epoxypropane,
FF-OV
Glycidyl allyl ether, 		
[(2-propenyloxy)methyl] oxirane

1ppm (t)10ppt (c)-(o)50 ppmt-A4Allyl Propyl Disulfide
2179-59-1

4,5-Dithia-1-octene, Onion oil,
FF-OV
9001/2/3+
2-Propenyl propyl disulfide,		
7100
Propyl allyl disulfide			

0.5ppm (t)2ppm (o)-DSEN-

N.D.

9001/2/3+
7100

a-Alumina
Activated Aluminum Oxide
EZ22/EZ23N95
1344-28-1		
N
2200/2300N95
		
2600/2700N95
				

Total dust,
N.D.
15mg/m3 (o); 		
Respirable fraction		
5mg/m3 (o)		

t-A4

Aluminum, Metal Dust		
EZ22/EZ23N95
7429-90-5		N
2200/2300N95
		
2600/2700N95
				
				

Total dust,
N.D.
15mg/m3 (o); Respirable
3
dusts 5mg/m (o);Respirable fraction
1mg/m3 (t) 		

T-A4

Aluminum Oxide(See a-Alumina)
1344-28-1		
		N

EZ22/EZ23N95
2200/2300N95
2600/2700N95

2-Aminopyridine
a-Aminopyridine, a-Pyridylamine
OV
7100/8100
0.5ppm(t)504-29-0				 0.5ppm(o)5ppm

Ammonia
Anhydrous ammonia,
AM
7400/8400
7664-41-7
Aqua ammonia, Aqueous ammonia		
7600/8600
				

35ppm (s)(t);300ppm25ppm (t)		
50ppm (o)		

Ammonium Chloride
Ammonium chloride, Ammonium
Fume
muriate fume, Sal ammoniac fume12125-02-9						

10mg/m3 (t);20mg/m3 (s)(t)Ammonium Sulfamate
7773-06-0

solidsNliquids
AM/N

		

EZ22/EZ23N95
2200/2300N95
2600/2700N95
water-based
8400+8910{

Must wear chemical
goggles when using
half mask respirator

N.D.

}

Ammate herbicide, Ammonium
EZ22/EZ23N95
amidosulfonate, AMS,
N
2200/2300N95
Monoammonium salt of
2600/2700N95
sulfamic acid, Sulfamate			Total dust,
1,500mg/m
10mg/m3 (t),15mg/m3 (o);Respirable fraction
5mg/m3 (o)5		Chemical – CAS#
Synonyms
n-Amyl Acetate628-63-7

FilterType

MoldexSuggested

Amyl acetic ester, Amyl acetic ether,
OV
7100/8100
1-Pentanol acetate, Pentyl ester of			
acetic acid, Primary amyl acetate			

TLV(t) PEL(o)IDLH

50ppm (t)1,000ppm
100ppm (o)		
100ppm (s)(t)		

Comments
Add 8940 to 8100 if
Particulate is present
or 7940 to 7100

sec-Amyl Acetate
1-Methylbutyl acetate, 2-Pentanol
OV
7100/8100
50ppm (t)1,000ppm
626-38-0
acetate, 2-Pentyl ester of acetic acid			125ppm (o)		
				
100ppm (s)(t)		
						

Add 8940 to 8100 if
Particulate is present
or 7940 to 7100

Aniline (and homologs)
Aminobenzene, Aniline oil,
OV
7100/8100
5ppm (o)100ppm62-53-3
Benzenamine, Phenylamine			2ppm (t)		
				 -skin-		t-A3

0-Anisidine
90-04-0

ortho-Aminoanisole, 2-Anisidine,
OV/RP
7100+7940
0.5mg/m3 (o)(t);50mg/m3
2-Anisidine, o-Methoxyaniline
OV/N
7100+8970-skin-		
[Note: o-Anisidine has been used		
7100+8910
as a basis for many dyes.]		
8100+8970/8940
			8100+8910

t-A3

p-Anisidine
para-Aminoanisole,
OV/RP
7100+7940
0.5mg/m3 (o)(t);50mg/m3
104-94-9
4-Anisidine, p-Methoxyaniline
OV/N
7100+8970-skin-					7100+8910
			8100+8970/8940
			8100+8910

t-A4r

Antimony* & Compounds (as Sb), Dusts & Mists*7440-36-0		
ANTU
86-88-4

N

EZ22/EZ23N95
2200/2300N95
2600/2700N95-Naphthyl thiocarbamide, 1-Naphthyl
OV/NRP100
thiourea, -Naphthyl thiourea		Arsenic, Elemental & Inorganic
Multi/P
Compounds (except Arsine) (as As)		
*7440-38-2									

7100+7940
8100+8940

0.5mg/m3 (o)(t)50mg/m3 (as Sb)

0.3mg/m3 (o)(t)-skin-

100mg/m3{water-based mists}

7640/
0.01mg/m3 (o)(t)5mg/m3 (as AS)
8600/8740/			
7600/7940/			
7000, 7800, 			
8000 or 9000

t-A4
*See 29CFR1910.1018;
O-Ca; t-A1; substancefor which an 		
ACGIH BEI exists

Asbestos,
NRP1008940/8990
0.1 f/cc (o)(t)*;N.D.
all forms			
7940/7990
1.0 f/cc (s)(o) 		
1332-21-4				
30 minutes		
12172-73-5						12001-29-5						12001-28-4						*Fiber longer than 5um; aspect ratio > 3:1
set by 400-450 X mag.
(4 mm objective) pcm.
See 29CFR1910.1001& 1926.58; A-1; O-Ca

Asphalt (petroleum;
OV/RP
8100+8970/8940
Bitumen) Fume		
7100+8970/7940
8052-42-4				
				
				

2740R95/2840R95
may be suitable for 		some app’s. t-A4;
substance for which
ACGIH BEI exists

0.5mg/m3 (t)*N.D.
Soluble aerosol as 		benzene (or equivalent		
method) inhalable 		particulate		Azinphos-methyl
Guthion
OV/RP
8100+8970/8940
0.2mg/m3 (o)(t)*;10mg/m3
86-50-0		
7100+8970/7940-skin-		
				-DSEN-								
						

Substance for whichan ACGIH BEI exists,
t-A4; *measured as		inhalable fraction		and vapor-BBarium-Soluble		
EZ22/EZ23N95 0.5mg/m3 (o)(t)Compounds (as Ba)		
N
2200/2300N95
water-based
7440-39-3			2600/2700N95{}

50mg/m3 (as Ba)

t-A4

Barium Sulfate		EZ22/EZ23N95 5mg/m3*(t);N.D.
7727-43-7		
N
2200/2300N95 15mg/m3 (o); 		
		
2600/2700N95 Respirable fraction						 5mg/m3 (o)		
						

Total dust containing
no Asbestos and <1%
Crystalline Silica.
*Measured as inhalable
fraction of the aerosol

BenzeneBenzol, Phenyl hydride
OV
7100
1ppm (o);500ppm71-43-2			
8100
5ppm (s)(o);		
				
0.5ppm (t); 		
				
2.5 (s)(t)		
				-skin-								
						
						
						

t-A1. Change
cartridge every shift.
See table Z-2 and
29CFR1910.1028;
O-Ca; 1/2 maskallowed with constantmonitoring; substancefor which an ACGIHBEI exists.

Benzenethiol
108-98-5

Mercaptobenzene,
OV
Phenyl mercaptan, Thiophenol		

7100
8100

0.1ppm (t)N.D.			
-skin-			

Benzyl Chloride
Chloromethylbenzene,
FF-OV/AG
9001/2/3+
1ppm (o)(t)10ppm
100-44-7a-chlorotoluene		
7300/7600															t-A3
Add particulate
prefilter if particulate
is present

Benzoyl Peroxide
Benzoperoxide, Dibenzoyl peroxide
OV/N
8100+8910
94-36-0			7100+8910

t-A4

6

5mg/m3 (o)(t)1,500mg/m3

		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments

Beryllium & Compounds 		
NRP1002730N100(as Be)			
4700N100
7440-41-7			
2360P100
			
4400P100			
8940/8990
			
7940/7990
				
				
				
				

0.00005mg/m3 (t)4mg/m3as inhalable fraction;		
0.0002mg/m3(o)		
0.002mg/m3((s)(o)0.025mg/m3(s)(o)*,**		
0.002mg/m3(o)**		
-skin-DSEN- for soluble compounds-RSEN- for soluble and insolublecompounds		

t-A1;
0.001mg/m3 is OSHA
action level;*30min peak per
8-hr shift;**This applies tostandards stayed orotherwise not in effectsee 1910.1024

Bismuth sesquitelluride, BismuthN
EZ22/EZ23N95
telluride, Bismuth tritelluride,		
2200/2300N95
1304-82-1
Tellurobismuthite		
2600/2700N95
				

Total dust 15mg/m3(o) 10mg/m3 (t);Respirable fraction
5mg/m3 (o)t-A4Bismuth Telluride
un-doped, as Bi 2 Te 3

N.D.

*Doped Bismuth sesquitelluride,N
Doped Bismuth Telluride, Doped		Tellurobismuthite		EZ22/EZ23N95 5mg/m3 (t)
N.D.
t-A4
2200/2300N95						2600/2700N95		

Boron Oxide
Anhydrous Boric Acid;N
1303-86-2
Boric Anhydride; Boric Oxide					

EZ22/EZ23N95 Total Dust
2,000mg/m3
2200/2300N95 15mg/m3 (o);					2600/2700N95 10mg/m3 (t)Bismuth Telluride;
Se-doped, as Bi 2 Te 31304-82-1

Boron Tribromide
Boron bromide, Tribromoborane
FF-AG
9001/2/3+
0.7ppm (c)(t)N.D.
10294-33-4			7200 			
Boron Trifluoride
Boron fluoride, Trifluoroborane
FF-AG
9001/2/3+
7637-07-2			7200
				0.7ppm (c)(t)0.1ppm (t),1.0ppm (c)(o)25ppm 		7200/8200

0.1ppm (t)N.D.

BromineMolecular bromine
FF-AG
7726-95-6			

9001/2/3+
7200

0.1ppm (o)(t)0.2ppm (s)(t)3ppm

Bromoform
Methyl tribromide, Tribromomethane
FF-OV
75-25-2			

9001/2/3+
7100

0.5ppm (o)(t)-skin-

850ppmBromine Pentafluoride
7789-30-2

Bromine Fluoride

AG

1,3-Butadiene
Biethylene; Bivinyl Butadiene;
OV
7100
1ppm (o)1,2;2ppm (t)2,000ppm
106-99-0
Divinyl Erythrene; Vinyl Ethylene		
8100[5ppm (s)(o)][10% Lower					
explosion limit]						
						
						
						
						
9001/2/3+
7100

200ppm (o)(t)3000ppm
300ppm (s)(t)		

t-A3
See OSHA 		
1910.1051; t-A2
1) Replace cartridge 		
every 4 hours for concentration > 5ppm. 		
2) Replace cartridge 		
every 3 hours for concentration>10ppm.

2-Butanone
78-93-3

Methyl Ethyl Ketone, MEK, Methyl
FF-OV
acetone, Ethyl methyl ketone		

Substance for which
ACGIH BEI exists

2-Butoxy Ethanol Acetate112-07-2

2-Butoxyethyl acetate, Butyl Cellosolve®
OV
7100
20ppm (t)N.D.
t-A3		
Butyl glycol acetate, EGBEA, Ektasolve EB®		
8100			Ethylene glycol monobutyl ether acetate							Butyl Cellosolve®, Butyl oxitol,
FF-OV
9001/2/3+
50ppm (o)700ppmDowanol® EB, EGBE, Ektasolve EB®,		
7100
20ppm (t)		
Ethylene glycol monobutyl ether,			-skin-		Jeffersol EB											

Substance for which
ACGIH BEI exists
Add particulate
prefilter if particulate
is present; t-A3

2-Butoxyethanol
111-76-2

n-Butyl Acetate

Butyl acetate, n-Butyl ester of acetic
FF-OV
9001/2/3+
123-86-4acid, Butyl ethanoate		
7100
				

150ppm (o)1700ppm
50ppm (t)[10%LEL]
150ppm (s)(t)		

Add particulate
prefilter if particulate
is present

sec-Butyl Acetatesec-Butyl ester of acetic acid,
FF-OV
9001/2/3+
105-46-4
1-Methylpropyl acetate		
7100
				

200ppm (o)Add particulate
prefilter if particulate
is present­

1700ppm[10%LEL]		

tert-Butyl ester of acetic acid
FF-OV
9001/2/3+
200ppm (o)540-88-5			
7100
				
tert-Butyl Acetate

1500ppm[10%LEL]

Butyl Acrylate141-32-2n-Butyl acrylate, Butyl ester ofOV
acrylic acid, Butyl-2-propenoate		

7100
8100

2ppm (t)N.D.
-DSEN-		

n-Butyl Alcohol
71-36-3

1-Butanol, n-Butanol, Butyl alcohol,
FF-OV
1-Hydroxybutane, n-Propyl carbinol		9001/2/3+
7100

20ppm (t)100ppm (o)1400ppm[10%LEL]

sec-Butyl Alcohol
78-92-2

2-Butanol, Butylene hydrate,
FF-OV
2-Hydroxybutane, Methyl ethyl carbinol		9001/2/3+
7100

150ppm (o)100ppm (t)2000ppm

tert-Butyl Alcohol
75-65-0

2-Methyl-2-propanol, Trimethyl
FF-OV
carbinol, tert-Butanol		9001/2/3+
7100

100ppm (o)(t)1600ppm

t-A4

t-A4

7

		
Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments

n-Butylamine
1-Aminobutane, Butylamine
AM7400/8400
5ppm (c)(o)(t)300ppm109-73-9			
7600/8600-skin-								
Butyl ester of 2-hydroxypropanoic acid, OV
7100
Butyl ester of lactic acid, Butyl lactate		
8100
Tert-Butyl Chromate
di-tert-Butyl ester of chromic acidN
EZ22/EZ23N95(as CrO3) 			
2200/2300N95
1189-85-1			2600/2700N95
n-Butyl Lactate138-22-7

Butyl Mercaptan
109-79-5

Butanethiol, 1-Butanethiol,
OVn-Butanethiol, 1-Mercaptobutane		o-sec-Butylphenol
89-72-5

2-sec-Butylphenol,
2-(1-Methylpropyl) phenol

p-tert-Butyltoluene
98-51-1

4-tert-Butyltoluene,
OV
7100/8100
1-Methyl-4-tert-butylbenzene			

OV/RP

7100
8100
7100+8970/7940
8100+8970/8940

Not specifically 		
approved, but better
service life than O.V.

5ppm (t)N.D.

0.005mg/m3 (o);0.1mg/m3(c)(t)-skin-

15mg/m3
See 29CFR1910.1026
as Cr(VI)				

0.5ppm (t)10ppm (o)500ppm5ppm (t)-skin-

N.D.			

1ppm (t)10ppm (o)100 ppm-CCadmium, Dust as Cd
Cadmium.
NRP100and compounds
Other synonyms vary depending		
7440-43-9
upon the specific cadmium compound								

2730N100
2360P100
4400P100
7940/7990
8940/8990

Total (inhalable)
9mg/m3
dust/particulates 		
0.005mg/m3 (o); 		
0.01mg/m3 (t);		
Respirable 0.002mg/m3 (t)See 29CFR1910.1027
and Table Z-2;		
O-Ca; t-A2. Substancefor which an ACGIHBEI exists.

Cadmium, Fume
Cadmium monoxide,
NRP1001306-19-0
Cadmium oxide fume		
			
			
			

2730N100
Total (inhalable)
9mg/m32360P100
dust/particulate 		
4400P100
0.005 mg/m3 (o) 0.01mg/m3 (t);7940/7990
Respirable 0.002mg/m3 (t)8940/8990			

See 29CFR1910.1027
and Table Z-2; O-Ca;
t-A2. Substance forwhich an ACGIH BEI
exists.

2730N100		

See 29CFR1910.1018

Calcium Arsenate		
7778-44-1
Calcium Carbonate471-34-1
1317-65-3

N100

Calcium salt of carbonic acidN
EZ22/EZ23N95[Note: Occurs in nature as limestone,		
2200/2300N95
chalk, marble, dolomite, aragonite,		
2600/2700N95
calcite & oyster shells.]			

5mg/m3 (as As)

Total particulates
N.D.
15mg/m3 (o) 		
Respirable fraction
5mg/m3 (o)Calcium Cyanamide
Calcium carbimide, Cyanamide,N
EZ22/EZ23N95 0.5mg/m3 (t)
N.D.
t-A4
156-62-7
Lime nitrogen, Nitrogen lime		
2200/2300N95									2600/2700N95
Calcium Hydroxide
Calcium hydrate, Caustic lime,N1305-62-0
Hydrated lime, Slaked lime					

EZ22/EZ23N95 Total dust
N.D.
2200/2300N95 5mg/m3 (t), 15mg/m3 (o);2600/2700N95 Respirable fraction 5mg/m3 (o)Calcium Oxide
Burned lime, Burnt lime, Lime,N
EZ22/EZ23N95 5mg/m3 (o); 2mg/m3 (t) 25mg/m3
1305-78-8
Pebble lime, Quick lime, Unslaked lime		
2200/2300N95									2600/2700N95
Calcium Silicate(synthetic)(non-fibrous)
1344-95-2

Calcium hydrosilicate, Calcium;N
metasilicate, Calcium monosilicate,		Calcium salt of silicic acid		

EZ22/EZ23N95 Total dust 15mg/m3 (o); N.D.
2200/2300N95 Respirable 		
2600/2700N95 fraction 5mg/m3 (o)		

Calcium Sulfate
7778-18-9

Anydrous Calcium Sulfate;N
Anhydrous gypsum; Anhydrous		
Sulfate of Lime; Calcium Salt		
of Surfuric Acid

EZ22/EZ23N95 Total dust 15mg/m3 (o); N.D.
2200/2300N95 Respirable fraction		
2600/2700N95 5mg/m3 (o); 10mg/m2 (t)*		Camphor
76-22-2

2-Camphonone, Gum camphor,
FF-OV/N95
Laurel camphor, Synthetic camphor		

9001/2/3+
7100+8910

Caprolactam Vapor
and Aerosol105-60-2

Aminocaproic lactam, epsilonOV/N
7100+8910
5.0mg/m3 (t)*N.D.
Caprolactam, Hexahydro-2H-azepin-		
8100+8910			
2-one, 2-Oxohexamethyleneimine					2ppm (o)(t)3ppm (s)(t)*Measured asinhalable fractionof the aerosol.
3200mg/m

CaptanCaptane; N-TrichloromethylmercaptoN
EZ22/EZ23N95 5mg/m3 (t) 		
(Inhalable Fraction)
4-cyclohexene-1,2-dicarboximide		
2200/2300N95 -DSEN-		
133-06-2			2600/2700N95
Carbon Black
1333-86-4

EZ22/EZ23N95 3.5mg/m3 (o)(t)1,750mg/m3
2200/2300N95 3.0mg/m3 (t)*		
2600/2700N95			

t-A5*Measured as inhalable fraction and vapor
t-A3*Measured asinhalable fraction
fraction t-A3

Carbon Disulfide
Carbon Bisulfide
OV
7100
75-15-0			
8100
				
				
				
				

1ppm (t);500ppm20ppm -(o); 		
30ppm -(c)(o); 		
[100ppm (c)(o) 30 min.
peak/8 hour shift];-skin-

Substance for whichan ACGIH BEI exists;
short service life t-A4

Carbon chloride, Carbon tet,
FF-OV
9001/2/3+
Freon® 10, Halon® 104, 		
7100
Tetrachloromethane			
				
				
				
				

5ppm (t)10ppm (t)(s)
10ppm (o)25ppm (c)(o)200ppm, 5
min peak in any 4h-skin-

t-A2			

Carbon tetrachloride
56-23-5

8

Channel Black; Lamp Black;N
Furnace Black; Thermal Black; 		
Acetylene Black		

t-A4

200 ppm		Chemical – CAS#
Synonyms

Catechol
120-80-9

FilterType

MoldexSuggested

1,2-Benzenediol; o-Benzenediol;
OV/N
7100+8910
1,2-Dihydroxybenzene; 		
8100+8910
o-Dihydroxybenzene;
2-Hydroxyphenol; Pyrocatechol

TLV(t) PEL(o)IDLHComments

5ppm (t);-skin-N.D.

t-A3		

Cellulose
Hydroxycellulose, PyrocelluloseN
EZ22/EZ23N95 Total Dust 15 mg/m3 (o), 10mg/m3 (t);9004-34-6			
2200/2300N95 Respirable fraction 5mg/m3 (o)				
			2600/2700N95
Cesium Hydroxide
Cesium hydrate, CesiumN
EZ22/EZ23N95 2mg/m3 (t)N.D.
21351-79-1
hydroxide dimer		
2200/2300N95									2600/2700N95
Chlorine
Molecular chlorineAG
7782-50-5						

7200/8200
7300/8300
7600/8600

0.1ppm (t)10ppm
0.4ppm(s)(t)		
1ppm(c)(o)		

Chlorine Dioxide
Chlorine oxide, Chlorine peroxideAG7200/8200
0.1ppm (t)(o);5ppm
10049-04-4			
7300/8300
0.3ppm (c)(t)		
			
7600/8600									
						

Chemical goggles
required when using
a half mask, t-A4
Chemical goggles
required when using
a half mask; ACHIH NIC
to 0.1ppm (t) and1ppm (t)(c)

Chloroacetaldehyde
107-20-0

Chloroacetaldehyde (40% aqueous
FF-OV
9001/2/3+
1ppm (c)(t)solution), 2-Chloroacetaldehyde,		
7100
1ppm (c)(o)2-Chloroethanal			 -skin-

45 ppmChloroacetyl Chloride
79-04-9

Chloroacetic acid chloride,
FF-OV/AG
9001/2/3+
Chloroacetic chloride,		
7300/7600
Monochloroacetyl chloride			

0.05ppm(t)0.15ppm(s)(t)-skin-

N.D.

Chloroacetophenone532-27-4

2-Chloroacetophenone, Chloromethyl
FF-OV/N95
phenyl ketone, Mace®, Phenacyl		
chloride, Phenyl chloromethyl ketone,
tear gas

9001/2/3+
7100+8910

0.05ppm (o)(t)2.3ppmChlorobenzene
108-90-7

Benzene Chloride; Chlorobenzol;
OV
MCB Monochlorobenzene; 		
Phenylchloride

7100
8100

75ppm (o);1,000ppm
10ppm (t)		

Substance for which
ACGIH BEI exists; t-A3

Chlorobromomethane
74-97-5

Bromochloromethane; CB; CBM;
FF-OV
Flurocarbon 1011; Halon 1011®;		
Methyl chlorobromide

9001/2/3+
7100

200ppm(t)(o)2,000ppm

short service life

Chlorodiphenyl(42% chlorine)
53469-21-9

Aroclor® 1242, polychlorinated
FF-OV/N95
diphenyl, PCBs		

9001/2/3+
7100+8910

1ppm (o)(t)-skin-

5mg/m3Chlorodiphenyl(54% chlorine)
11097-69-1

Aroclor® 1254, polychlorinateddiphenyl, PCBs

9001/2/3+
7100+8910

0.5ppm (o)(t)-skin-

5mg/m32-Chloroethanol
107-07-3

See Ethylene Chlorohydrin							1-Choro-1-nitropropane
Korax, Lanstan
600-25-9		

FF-OV/N95

FF-OV

9001/2/3+
7100

2ppm (t)20ppm(o)

t-A4

t-A3

100ppmo-Chlorotoluene
95-49-8

1-Chloro 2-Methylbenzene;
OV
7100
50ppm (t)N.D.
2-Chloro-1-Methylbenzene; 		
8100			2-Chlorotoluene; o-Tolylchloride											For specificinformation, refer to:
NIOSH Pocket Guide
to Chemical Hazards

Chromium,		
N
EZ22/EZ23N95 0.5mg/m3 (t)*;250mg/m3
Metal (as Cr)			
2200/2300N95 1mg/m3 (o)		
7440-47-3
		
2600/2700N95 									
						
						For specificinformation, refer to		
NIOSH Pocket Guide
to Chemical Hazards;
t-A4; *As inhalable
fraction of aerosol

Chromium (II) Compounds –		EZ22/EZ23N95 0.5mg/m3 (o)250mg/m3(as Cr)		
N
2200/2300N95			
		
2600/2700N95			
						For specificinformation, refer to
NIOSH Pocket Guide
to Chemical Hazards

Chromium (III) Compounds –EZ22/EZ23N95 0.5mg/m3 (o)25mg/m3(as Cr)			
2200/2300N95 0.003mg/m3 (t)*,**		N
2600/2700N95 DSEN,** RSEN**					
**Water soluble compounds only.		
			*Measured as inhalable Fraction of the aerosol		For specificinformation, refer to
NIOSH Pocket Guide
to Chemical Hazards;
t-A4

9

		

Filter

MoldexChemical – CAS#Type

Suggested

Synonyms

TLV(t) PEL(o)IDLHComment

Chromium (VI) Inorganic Compounds –		EZ22/EZ23N95 0.0002mg/m3 (t)*;15mg/m3
Dusts; Water Soluble (as Cr)N
2200/2300N95 0.0005mg/m3 (s)(t)*;		
Includes Chromic Acid and			
2600/2700N95 0.005mg/m3 (o);		
(see also Lead and Zinc				as Cr(VI)		
Chromate)				
0.1mg CrO3/m3 (c)(o)		
				
DSEN		
				
RSEN		
				-skin-								

t-A1; Also see specificcompounds. Substancefor which an ACGIHBEI exists. For specificinformation, refer to 		
OSHA 29CFR1910.1026*Measured as inhalable
able fraction of aerosoland skin

Chromium (VI) Inorganic Compounds –		EZ22/EZ23N95
Certain Water Insolubles (as Cr)N
2200/2300N95
			
2600/2700N95
				
				
				

0.0002mg/m3 (t)*;15mg/m30.0005mg/m3 (s)(t)*;		
0.005mg/m3 (o); 		
as Cr(VI)		
DSEN		
RSEN		

t-A1; For specificinformation, refer to
OSHA 29CFR1910.1026*Measured as inhalable
fraction of aerosol
and RSEN.0001ppm (t)*N.D.
.00025ppm (s)(t)*		
DSEN		
RSEN		
-skin-		

*Measured asinhalable fraction andvapor; t-A1

Respirable fraction
15mg/m3.4mg/m3 (t) Anthracite;		
.9mg/m3 (t) Bituminous;		
or 2.4mg/m3 (o)*		
%SiO2+2		or		
10mg/m3 (o)**		
%SiO2+2		

For specificinformation, refer to 		
NIOSH Pocket Guide
to Chemical Hazards;*<5% SiO2 Resp.quartz
fraction; **>5% SiO2
Resp. quartz fraction;
t-A4 		

2740R95
0.2mg/m3 (o)(t)80mg/m3
4300P95			
2360P100			
4400P100			
7940/7990			
8940/8990			

Confirmed Human
Carcinogen; t-A1; 		
Substance for which
ACGIH BEI exists for
Polycyclic Aromatic
Hydrocarbons (PAHS)

Cobalt, Metal Dusts and
NRP1002730N100
0.1mg/m3 (o)*;20mg/m3
Fumes (as Co)			
2360P1000.02mg/m3 (t)**		
7440-48-4			
4400P100
DSEN		
			
7940/7990
RSEN		
			
8940/8990									

t-A3; substances forwhich an ACGIH BEI
exists.*For metal dusts
and fumes. 		
*Measured as inhalable
fraction of the aerosol

Coke Oven Emissions
RP
2740R95/8970 0.15mg/m3 (o)N.D.
			
4300P95(Benzene soluble					
4400P100
fraction)			2360P100
			7940/7990
			8940/8990

See 29CFR1910.1029;
O-Ca 		

Chromyl Chloride
14977-61-8

Chlorochromic anhydride, 		
8200/8300
Chromic oxychloride, Chromium 		
8600
chloride oxide, Chromium dichloride 		
7200/7300
dioxide, Chromium dioxide dichloride, 		
7600
Chromium dioxychloride, Chromium			
oxychloride, Dichlorodioxochromium

Anthracite coal dust, Bituminous		EZ22/EZ23N95
coal dust, Lignite coal dustN
2200/2300N95
			
2600/2700N95
				
				
				
				
				
Coal Dust

Coal Tar Pitch Volatiles 		RP(as Benzene Solubles)			
65996-93-2		
			
			
			

Copper, Dusts and Mists (as Cu)
N
EZ22/EZ23N95 1.0mg/m3 (o)(t)100mg/m3
		
7440-50-8			
2200/2300N95						water-based mists
			2600/2700N95

{

N
			
7440-50-8
Copper, Fume (as Cu)}

2310/2315N99 0.1mg/m3 (o);100mg/m3				
2400/2800N95 0.2mg/m3 (t)		
		

Cotton Dust, (Raw)		
EZ22/EZ23N95
Untreated		
N
2200/2300N95
			
2600/2700N95
				
				
				
				
				

0.1mg/m3 (t) –100mg/m3
measured as thorasic 		
fraction of aerosol;		
1mg/m3 (o) – 		Respirable dust is measured
by vertical elutriator; Cotton
Waste processing operations(of waste recycling and garnetting)

EZ22/EZ23N95 15mg/m3 (o) total dust;
2200/2300N95 5mg/m3 (o) respirable			
2600/2700N95 fraction
Crag Herbicide136-78-72-(2,4-Dichlorophenoxy)-Ethyl SodiumN
Sulfate, Sesone		

o,m,p Cresol
Cresylic Acid
OV/P
7100+7940
1319-77-3			
8100+8940
08-39-4				
95-48-7
106-44-5
Cristobalite

5ppm (o);250ppm
20mg/m3 (t)*		
-skin-		

t-A4*Measured asinhalable fraction
and vapor, t-A4		

(See Silica, Crystalline)				

Crotonaldehyde
2-Butenal, ß-Methyl acrolein,
FF-OV
9001/2/3+
2ppm (o)4170-30-3
Propylene aldehyde		7100
0.3ppm (c)(t)				 -skin-10

500mg/m3

5x PEL maximum fordisposables. See
29CFR1910.1043 forother grade of cotton
If oil is present use
2740R95, 4300P95

50ppm

t-A3

		
Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)CumeneIsopropyl Benzene;
OV
7100
50ppm (o)(t);98-82-8
2-Phenyl Propane; Cumol		
8100-skin					IDLHComments

900ppm
[10% Lower
explosion limit]

ACHIH NIC to
0.1ppm and t-A2

Cyanamide420-04-2

Amidocyanogen, Carbimide,
N
Carbodiimide, Cyanogen nitride,		Hydrogen cyanamide		EZ22/EZ23N95 2mg/m3 (t)N.D.
2200/2300N95						2600/2700N95

Cyclohexane
110-82-7

Benzene hexahydride,FF-OVHexahydrobenzene, 		Hexamethylene,
Hexanapthene

9001/2/3+
7100

300ppm (o)100ppm (t)1300ppm[10% LEL]

Hexalin; Hydralin;
OV
7100
50ppm (o)(t);400ppmHydroxycyclohexane; Anol; 		
8100-skin-		
Hexahydrophenol; Cyclohexyl Alcohol											
Cyclohexanol
108-93-0

Add 8970/8940/7940
Substance for which
ACGIH BEI exists if
particulate is present

Cyhexatin
13121-70-5

TCHH, Tricyclohexylhydroxystannane,
OV/N
7100+8910
Tricyclohexylhydroxytin,		
8100+8910
Tricyclohexylstannium hydroxide,			Tricyclohexyltin hydroxide

5mg/m3 (t)0.1mg/m3 (o)(as SN)

80mg/m3
t-A4		
25mg/m3				

Cyclohexylamine
108-91-8

Aminocyclohexane,
FF-OV
Aminohexahydrobenzene, 		Hexahydroaniline,
Hexahydrobenzenamine

10ppm (t)

N.D.

t-A4

Cyclohexene
110-83-8

Benzene Tetrahydride;
OV
7100
Tetrahydrobenzene		8100

300ppm (o)(t)2,000ppm

ACGIH NIC to 300ppm

700ppmt-A3

9001/2/3+
7100

Cyclohexanone
Pimelic Ketone; Cyclohexyl Ketone
OV
7100
20ppm (t);108-94-1			
8100
50ppm (o);				 -skinCyclonite
121-82-4

Cyclotrimethylenetrinitramine;N
Hexahydro-1,3,5-trinitro-s-triazine;		
RDX; Trimethylenetrinitramine;		
1,3,5-Trinitro-1,3,5-triazacyclohexane		EZ22/EZ23N95 0.5mg/m3 (t);N.D.
t-A4 			2200/2300N95 -skin-					2600/2700N95

Cyclopentadiene
1,3-Cyclopentadiene
OV
7100
542-92-7			8100

75ppm (o)750ppmShort service life

10mg/m3 (o);10mg/3 (t)inhalable fraction-skin-

100mg/m3

t-A4-D2,4-D
2,4-Dichlorophenoxyacetic acid,
OV/NRP100 7100+7940
94-75-7
Dichlorophenoxyacetic acid		
8100+8940
								
Diacetone Alcohol
123-42-24-hydroxy-4 methyl-2 pentanone,
FF-OV
Diacetone, 2-Methyl-2-pentanol-4-one		

9001/2/3+
50ppm (o)(t)7100 		

1800ppm[10% LEL]

Diatomaceous earth(See Silica)					(uncalcined Silica-amorphous)								61790-53-2
Dibutyl phthalate
84-74-2

DBP; Dibutyl-1,2-Benzene
dicarboxylate; Di-n-buylphthalate

OV/RP

7100+8970/7940
8100+8970/8940

Dibutyl Acid-o-Phosphate;
OV/RP
7100+8970/7940
Di-n-Butyl Hydrogen Phosphate;
8100+8970/8940
Dibutyl Phosphoric Acid							
Dibutyl phosphate107-66-4

1,2-Dichloroethylene
156-59-2; 156-60-5;
540-59-0

Acetylene dichloride; cis-Acetylene
FF-OV
dichloride; trans-Acetylene		dichloride; sym-Dichloroethylene

9001/2/3+
7100

5mg/m3 (o)(t)4,000mg/m3

1ppm (o);0.6 (t) measured asinhalable fraction
and vapor

30ppm

200ppm(t)(o)1000ppm

1,1-Dichloro-1-Nitroethane Dichloronitroethane
OV
7100/8100
2ppm(t)594-72-9				 10ppm(c)(o)1,3-Dichlorpropene
542-75-6

Bicyclopentadiene; DCPD;
FF-OV
1,3-Dicyclopentadiene dimer;		
3a,4,7,7a-Tetrahydro-4,7-methanoindene

7100+
90001/2/3

1ppm(t)-skin-

25 ppmN.D.

2,2-Dichloropropionic Acid Dalapon; 2,2-Dichloropropanoic
FF-OV/N95 9001/2/3+
5ppm(t)*N.D.
75-99-0acid; a,a-Dichloropropionic acid		
7100 						and 8910									
1,3-Dichloro-5,Dactin; DDH; Halane
OV/N
5-Dimethylhydantoin			
118-52-5

7100+8910
8100+8910

short service life

t-A3

t-A4
*measured asinhalable fractionof the aerosol

0.2mg/m3 (o)(t);5mg/m30.4mg/m3 (s)(t)					o-Dichlorobenzene
o-DCB; 1,2-Dichlorobenzene; orthoFF-OV
9001/2/3+
25ppm (t)200ppm95-50-1
Dichlorobenzene; Dichlorocide		
7100
50ppm (c)(o)		
						
						t-A4
Add particulate
prefilter if particulate
is present

11		Chemical – CAS#
Synonyms

p-Dichlorobenzene
106-46-7

FilterType

p-DCB; 1,4-Dichlorobenzene; paraFF-OV/N95
Dichlorobenzene; Dichlorocide		

MoldexSuggested

TLV(t) PEL(o)IDLHComments

9001/2/3+
7100/8910

10ppm (t)75ppm (o)150ppmt-A3

5ppm (t)[10ppm (s)(t)][15ppm (o)(c)]-skin-

100ppmt-A4

bis(2-Chloroethyl)ether; 2,2’FF-OV
9001/2/3+
Dichlorodiethyl ether, 2,2’-		
7100
Dichloroethyl ether							
Dichloroethyl ether
111-44-4

1,2 Dichloropropane
78-87-5(See Propylene Dichloride)								Dicyclopentadiene
77-73-6

Bicyclopentadiene; DCPD;
OV/N
7100+8910
0.5ppm (t)N.D.
1,3-Dicyclopentadiene dimer;		
8100+8910
1ppm (s)(t)		
3a,4,7,7a-Tetrahydro-4,7-methanoindene					Dicyclopentadienyl Iron
bis-Cyclopentadienyl Iron; FerroceneN
EZ22/EZ23N95
102-54-5			
2200/2300N95
			
2600/2700N95
				Diethanolamine
111-42-210mg/m3 (t); Total
N.D.
Dust-15mg/m3 (o); 					Respirable fraction
5mg/m3 (o)DEA; Di(2-hydroxyethyl)amine;
OV
7100
0.2 (t)*;N.D.
2,2’-Dihydroxydiethyamine; Diolamine;		
8100-skin-		
bis(2-Hydroxyethyl)amine; 					2,2’-Iminodiethanol					Diethylamine
Diethamine; N,N-Diethalamine; NFF-OV
9001/2/3+
109-89-7Ethylanamine		
7100
				
				

Including
CyclopentadieneCas: 542-92-7

5ppm (t)15ppm (s)(t)25ppm-(o)-skin-

200ppm

Add 8970/8940/7940
if particulate is present.
*Measured as inhalable
fraction and vapor
t-A4

2-Diethylaminoethanol
100-37-8

Diethylaminoethanol;
OV
7100
10ppm (o);100ppm2-Diethylaminoethyl alcohol;		
8100
2ppm (t);N,N-Diethylethanolamine;			 -skin-		
Diethyl-(2-hydroxyethyl)amine;
2-Hydroxytriethylamine

Diethyl Ether
60-29-7(See Ethyl Ether)								Diethyl Ketone
96-22-0

DEK, Dimethylacetone, Ethyl ketone,
OV
Metacetone, 3-Pentanone, Propione		

7100
8100

200ppm (t)N.D.
300ppm (s)(t)		

Diethylenetriamine
111-40-0

N-(2-Aminoethyl)-1,2-ethanediamine;
FF-OVbis(2-Aminoethyl)amine; DETA;		
2,2’-Diaminodiethylamine

9001/2/3+
7100

1ppm(t)-skin-

1,1-Dimethylhydrazine
Dimzine; DMH; UDMH;
FF-AM
9001/2/3+
0.01ppm(t)57-14-7
Unsymmetrical dimethylhydrazine		
7400
0.5ppm(o)				 -skinDiglycidyl Ether
2238-07-5

Diallyl ether dioxide; DGE;
FF-OV
Di(2,3-epoxypropyl) ether;		
2-Epoxypropyl ether;bis(2,3-Epoxypropyl) ether

9001/2/3+
7100

0.01ppm(t)0.5ppm(c)(o)Diethyl Phthalate
Ethylphthalate; DEP
RP
2360P100
5mg/m3 (t)84-66-2			4300P95
			4400P100
			2740R95/8970
			7940/7990
			8940/8990
Diisobutyl Ketone
108-83-8

Dimethylamino Benzene
1300-73-8

N.D.

15ppm

t-A3

10 ppm

t-A4

N.D.

t-A4

DIBK; sym-Diisopropyl acetone; 2,6FF-OV
9001/2/3+
25ppm (t)500ppmDimethyl-4-hepanone; Isovalerone;		
7100
50ppm (o)		
Valerone					Diisopropylamine
DIPA, N-(1-Methylethyl)-2-propanamine FF-OV
108-18-9			

9001/2/3+
7100

5ppm (o)(t)-skin-

Short service life

Add particulate
prefilter if particulate
is present

200ppm(See Xylidine)								Dimethylamine
Dimethylamine (anhydrous),AM
7400
124-40-3
N-Methylmethanamine		
8400
				
				

5ppm (t);500ppm10ppm (o);		
15ppm (s)(t)		
-DSEN-		

AM not specifically 		
approved & short OV
service life; t-A4;

Dimethylaniline
N,N-Dimethylbenzeneamine;
OV
7100
5ppm (o)(t);100ppm121-69-7
N,N-Dimethylphenylamine		
8100
10ppm (s)(t); 		
				 -skin-		

Substance for whichan ACGIH BEI exists,
t-A4

Dimethyl-1,2-DibromoDibrom®;N2310/2315N99 3mg/m3 (o);200mg/m3
Substance for which
2,2-Dichloroethyl
1,2-Dibromo-2,2-dichloroethyl		 2400/2800N95 0.1mg/m3 (t)		
an ACGIH BEI (AcetylPhosphate
dimethyl phosphate; Naled		
-skin-		Cholinesterase Inhibt300-76-5				
-DSEN-		
ing Pesticide) exists,						
t-A4; *Inhalable						
fraction & vapor/						
aerosol12		Chemical – CAS#
Synonyms

Dimethylphthalate131-11-3

Dimethyl ester of
1,2-benzenedicarboxylic acid; DMP

FilterType

MoldexSuggested

OV/RP

7100+8970/7940
8100+8970/8940

TLV(t) PEL(o)IDLH

5mg/mc (o)(t)2,000mg/m3				

Dinitrobenzene
o-Dinitrobenzene; 1,2 Dinitrobenzene;
OV/N
7100+8910
1mg/m3 (o)(t)*;50mg/m3(All Isomers)
m-Dinitrobenzene; 1,3-Dinitrobenzene;		
8100+8910-skin-		
100-25-4; 528-29-0;
p-Dinitrobenzene; 1-4-Dinitrobenzene					99-65-0												
						
Dinitro-o-Cresol534-52-1

4,6-Dinitro-o-cresol; 3,5-DinitroFF-P100
9001/2/3+
0.2mg/m3 (o)(t);5mg/m32-hydroxytoluene; 4,6-Dinitro-2-methyl		
7990 or 7940 -skin-		
phenol; DNC; DNOC					Dinitolmide
3,5-Dinitro-o-toluamide;N
148-01-6
2-Methyl-3,5-dinitrobenzamide; Zoalene					

1,4-Dioxane
123-91-1

Diethylene dioxide; Diethylene ether;
OV
Dioxan; p-Dioxane; 1,4-Dioxane		

7100
8100

20ppm (t);100ppm (o)-skin-

500ppm

Dipropyl Ketone123-19-3

Butyrone, DPK, 4-Heptanone,
Heptan-4-one, Propyl ketone

7100/8100

50ppm(t)N.D.

Diphenyl
Biphenyl, Phenylbenzene
OV/N
92-52-4			

Substance for whichan ACGIH BEI exists(Methemoglobin Inducer)
exists. *Measured asinhalable fraction andvapor*Measured as inhalable
fraction and vapor

EZ22/EZ23N95 1mg/m3 (t)N.D.
t-A4			2200/2300N95						2600/2700N95			

Dinitrotoluene
Dinitroluol; DNT; Methyldinitrobenzene
OV/P100
7100+7940
1.5mg/m3 (o);50mg/m3
25321-14-6			
8100+8940
0.2mg/m3 (t); 		
				-skin-								

OV

Comments

Substance for whichan ACGIH BEI (MetheMoglobin Inducer) 		
exists; t-A3
t-A3

		

8100+8910
0.2ppm (o)(t)100mg/m3			
7100+8910					Diphenylamine
Anilinobenzene, DPA, Phenylaniline,N
EZ22/EZ23N95 10mg/m3 (t)N.D.
122-39-4
N-Phenylaniline, N-Phenylbenzenamine		
2200/2300N95			
			
2600/2700N95			
						

May want to use
2400N95, 2800N95 or
4800N95 if odor is a
nuisance, t-A4

Di-sec-octylphthalate
DOP,bis-(2-Ethylhexyl) Phthalate;RP
2740R95,
5mg/m3 (o)(t);5,000mg/m3
117-81-7
Di-2-Ethylhexyl Phthalate; DEHP		
4300P95,			
			
4400P100,						7940/7990,
			8970/8940/8990

ACGIH NIC to
0.03mg/m3 		
and skin; t-A3

2,6-Di-tert-butyl-p-cresol

128-37-0

1-Dodecanethiol
112-55-0

BHT; Butylated hydroxytoluene;
FF-OV/N95 9001/2/3+
2mg/m3 (t) *N.D.
Dibutylated hydroxytoluene;		
7100+8910			
4-Methyl-2,6-di-tert-butyl phenol					Dodecyl mercaptan,
OV
7100
0.1ppm (t)N.D.
1-Dodecyl mercaptan, 		
8100			n-Dodecyl mercaptan, Lauryl mercaptan,					n-Lauryl mercaptan, 1-Mercaptododecane*Measured asinhalable fraction
and vapor; t-A4
R or P filter may beneeded with oily 		
aerosols-EEmery1302-74-5

Aluminum oxide, Aluminum trioxide,
N
Corundum, Impure corundum,		Natural aluminum oxide		EZ22/EZ23N95 Total Dust 15mg/m3 (o); N.D.
2200/2300N95 Respirable fraction		
2600/2700N95 5mg/m3 (o)Endrin72-20-8Hexadrin®, 1,2,3,4,10,10-HexachloroOV/NRP100 7100+7940
epoxy-1,4,4a,5,6,7,8,8a-octahydro-		
8100+8940
1,4-endo,endo-5,8-dimethanonaphthalene		

0.1mg/m3 (o)(t);-skin-

2mg/m3t-A4

Epichlorhydrin
106-89-8

1-Chloro-2,3-epoxypropane;
FF-OV
9001/2/3+
2-Chloropropylene oxide;		
7100
g-Chloropropylene oxide			

0.5ppm(t)5ppm(o)-skin-

75ppm

t-A3

Epoxies(See Specific Compounds)					Ethanolamine
141-43-5Ethylolamine; Monoethanolamine;OV
B-Aminoethyl alcohol; 2-Aminoethanol; 		
2-Hydroxethylamine

7100
8100

3ppm (o)(t);6ppm (s)(t)2-Ethoxyethanol
110-80-5

Cellosolve®, EGEE,OV
Ethylene glycol monoethyl ether 		

7100
8100

5ppm (t); 200ppm (o); 500ppm-skin-		

2-Ethoxyethyl acetate111-15-9

Cellosolve® acetate, EGEEA,
OV
7100
Ethylene glycol monoethyl ether acetate,		8100
Glycol monoethyl ether acetate			Ethyl Acetate141-78-6

Acetic ester, Acetic ether, Ethyl ester
FF-OVof acetic acid, Ethyl ethanoate		

30ppm

Substances for which
ACGIH BEI exists

100ppm (o);500ppmSubstances for which
5ppm (t); 		
ACGIH BEI exists-skin-			

9001/2/3+
400ppm (o)(t)7100 		

2000ppm[10% LEL]

Ethyl Acrylate
Ethyl acrylate (inhibited), Ethyl ester
FF-OV
9001/2/3+
140-88-5of acrylic acid, Ethyl propenoate		
7100
				
				

5ppm (t)15ppm (s)(t)25ppm (o)-skin-

300ppmEthylamine
Aminoethane, Ethylamine
FF-OV
9001/2/3+
75-04-7(anhydrous), Monoethylamine		
7100
				
				

5ppm (t);15ppm (s)(t);10ppm (o)-skin-

600ppm

t-A4

13

		
Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments

Ethyl Benzene
Phenylethane; Ethylbenzol
OV
7100
20ppm (t);800ppmparticulate
100-41-4		
8100
8100
100ppm (o);						
						
						

Add 8940 or 7940 if[10% Lower is present.
Substance explosion
limit] for which a t-A3;
ACGIH BEI exists

Ethyl Butyl Ketone
Butyl ethyl ketone, 3-Heptanone
OV
106-35-4			

Add 8940 or 7940 if
particulate is present

7100
8100

50ppm (o)(t);1,000ppm
75ppm (s)(t)		

Ethylene Chlorohydrin
2-Chloroethanol; 2-Chloroethyl Alcohol
OV
7100
5ppm (o)107-07-3			
8100
1ppm (c)(t);				 -skinEthylene Diamine
107-15-3

1,2-Diaminoethane; 1,2-Ethanediamine; FF-OV
Ethylenediamine (anhydrous)		

9001/2/3+
7100

Ethylene Dibromide
1,2-Dibromoethane; Ethylene bromide;
FF-OV
9001/2/3+
106-93-4
Glycol dibromide, EDB		
7100
				
				
				

7ppm

t-A4

10ppm (o)(t)-skin-

1000ppm

t-A4

20ppm (o)30ppm (c)(o)50ppm 5 minutepeak per 8-hr shift-skin-

100ppmt-A3Ethylene Glycol,
Ethylene Alcohol; Glycol; 1,2-Ethanediol OV/N
7100+8910
25ppm (t)*N.D.
Aerosol			
8100+8910
50ppm (s)(t)*		
107-21-1				 10mg/m3**								

*Vapor fraction**Measured as inhalable
fraction of the aerosol,
t-A4Ethyl Ether
Diethyl ether, Diethyl oxide,
OV
7100
400ppm (o)(t);60-29-7Ethyl oxide, Ether, Solvent ether		
8100
500ppm (s)(t)					

Short service life;

1,900ppm[10% Lower
explosion limit]

Ethyl Formate
109-94-4Ethyl ester of formic acid,
FF-OV
Ethyl methanoate		

9001/2/3+
7100

100ppm (o)1500ppm
100ppm (t)		

Ethylidene Norbornene
16219-75-3

ENB, 5-Ethylidenebicyclo(2.2.1)heptFF-OV
2-ene, 5-Ethylidene-2-norbornene		

9001/2/3+
7100

2ppm (t)N.D.
4ppm (s)(t)		

Ethylene Dichloride
1,2-Dichloroethane; Ethylene
OV
7100/8100
107-06-2
chloride; Glycol dichloride			
				
				
				
Ethyl Mercaptan
75-08-1

Ethanethiol, Ethyl sulfhydrate,
OV
Mercaptoethane		

7100
8100

10ppm(t)50 ppm50ppm(o)100ppm(c)(o)200ppm 5 min		
peak in any 3 hrs

Ethyl orthosilicate, Ethyl silicate
OV(condensed), Tetraethoxysilane,		Tetraethyl orthosilicate, Tetraethyl silicate

7100
8100

t-A4

0.5ppm (t);500ppm10ppm (c)(o)		

n-Ethylmorpholine
4-Ethylmorpholine
FF-OV
9001/2/3+
5ppm (t)100-74-3
			7100
20ppm (o)				 -skinEthyl Silicate
78-10-4

t-A4
Short service life

10ppm (t)100ppm (o)100ppm700ppm			-FFerbamtris(Dimethyldithiocarbamato)iron,N
14484-64-1
Ferric dimethyl dithiocarbamate					

EZ22/EZ23N95 Total dust 15mg/m3 (o) 800mg/m3
2200/2300N95 5mg/m3 (t)*		
2600/2700N95			

Ferrovanadium Dust		
N
EZ22/EZ23N95 1mg/m3 (o)(t);12604-58-9			
2200/2300N95 3mg/m3 (s)(t)			2600/2700N95

t-A4*Measured as inhalable
fraction of the aerosol

500mg/m3

Fibrous Glass Dust

Fiber glas®, Fiberglass, Glass fibers,N
Glass wool				EZ22/EZ23N95 Total 15mg/m3 (o);					2200/2300N95 respirable fraction		
2600/2700N95 5mg/m3 (o)		

Flourides (as F)(See Specific Compound)						Formaldehyde
Methanal, Methyl aldehyde,
FORM
7500/7600
0.75ppm (o);20ppm
50-00-0
Methylene oxide; Formalin		
8500/8600
0.1ppm (t); 		
				
2ppm (s)(o)		
				
0.3ppm (c)(t)		
				
-DSEN-						-RSEN-								
						

See 29CFR1910.1048;
O-Ca; Dispose of
cartridges at the end ofeach work shift; wear
gas-proof goggles withhalf-mask. Do not use
same cartridge for any
other gases or vapors;

Formamide
Carbamaldehyde; Methanamide
OV
7100/8100
1ppm(t)N.D.
75-12-7				 -skin-		

t-A3

FufuralFural, 2-Furancarboxaldehyde,
FF-OV
9001/2/3+
98-01-1
Furfuraldehyde,2-Furfuraldehyde		
7100
				

t-A3
Substance for which
ACGIH BEI exists;

140.2ppm (t)100ppm5ppm (o)		
-skin-				Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

Fufuryl Alcohol
2-Furylmethanol,
FF-OV
9001/2/3+
98-00-02-Hydroxymethylfuran		7100
				

TLV(t) PEL(o)IDLHComments

0.2ppm (t)75ppm
50ppm (o)		
-skin-		

Add particulate
prefilter if particulate
is present

300ppm (t)500ppm (s)(t)Bulk handlingt-A3-GGasoline
8006-61-9

Motor fuel, Motor spirits, Natural
FF-OV
9001/2/3+
gasoline, Petrol [Note: A complex		
7100
mixture of volatile hydrocarbons 			(paraffins, cycloparaffins &aromatics).]

N.D.

Glutaraldehyde
Glutaric Dialdehyde; 1,5-Pentanedial
FF-OV
9001/2/3+
0.05ppm (c)(t)*N.D.
111-30-8			
7100-DSEN-						 -RSEN-		
						
						t-A3
Add particulate prefilter

if particulate is present*Activated orinactivated t-A3

Glycerin (anhydrous); Glycerol;RP
2740R95/
Total dust 15mg/m3 (o), N.D.
Glycyl alcohol; 1,2,3-Propanetriol;		
4300R95/
Respirable fraction		
Trihydroxypropane		
4400P100/
5mg/m3 (o)			7940/7990/
			8940/8990/8970
Glycerin, Mist
56-81-5

Glycidol
556-52-5

2,3-Epoxy-1-propanol; Epoxypropyl
OV
7100/8100
alcohol; Glycide;Hydroxymethyl			
ethylene oxide; 2-Hydroxymethyl oxiran;
3-Hydroxypropylene oxide

2ppm(t)50ppm(o)150ppmGlycol monoethyl Ether
110-80-5(See 2-Ethoxyethanol)					Grain Dust		(Oat, Wheat, Barley)		
N
			EZ22/EZ23N95 4mg/m3 (t)*;2200/2300N95 10mg/m3 (o)2600/2700N95

N.D.

Gypsum & Plaster of Paris Calcium(II) sulfate dihydrate, Gypsum		
13397-24-5
stone, Hydrated calcium sulfate,N
26499-65-0
Mineral white, Calcium		
Sulfate Hemihydrate

EZ22/EZ23N95 Total dust,
N.D.
2200/2300N95 15mg/m3 (o); Respirable
2600/2700N95 fraction 5mg/m3 (o)

t-A3

			
*Inhalable dust

Graphite (Natural)Black lead, Mineral carbon, Plumbago, 		EZ22/EZ23N95 2.0mg/m3 (t)* (all forms 1,250mg/m3
7782-42-5
Silver graphite, Stove blackN
2200/2300N95 exept graphite fibers); 		
			
2600/2700N95 15MPPCF(o)**								
						

*Respirable particulate
fraction, **based on
impinger samples
counted by light fieldtechniques

Graphite (Synthetic)
Acheson graphite, Artificial graphite		EZ22/EZ23N95 Total dust 15mg/m3 (o); N.D.
(all forms except fibers)		
N
2200/2300N95 Respirable fraction 		
7440-44-0			
2600/2700N95 5mg/m3 (o); 2.0mg/m3 (t)*								*All forms except
graphite fibers;
Respirable particulate
fraction-HHafnium & Compounds,
EZ22/EZ23N95 0.5mg/m3 (o)(t)Celtium; Elemental Hafnium; 		
Dusts & Mists
N
2200/2300N95
Hafnium metal
7440-58-6			
2600/2700N95

50mg/m3 (as Hf)

n-Heptane
Normal heptane; n-heptane
OV
7100
142-82-5			
8100
				

750ppm

400ppm (t);500ppm -(o)500ppm (s)(t)2-Heptanone
110-43-0(See Methyl n-amyl ketone)								3-Heptanone
106-35-4(See Ethyl butyl ketone)								Hexachlorobutadiene
87-68-3

HCBD; Hexachloror-1,3-butadiene;
FF-OV
1,3-Hexachorobutadiene; 		
Perchlrobutadiene

9001/2/3+
7100

0.02ppm(t)-skin-N.D.

t-A3

Hexachorocyclopentadiene HCCPD; Hexachloro-1,
FF-OV
9001/2/3+
77-47-43-cyclopentadiene; 		
7100
1,2,3,4,5,5-Hexachloro-		
1,3-cyclopentadiene;
Perchlorocyclopentadiene

0.01ppm(t)

N.D.

t-A4

Hexachloroethane
Perchloroethane
OV/N
67-72-1			

7100+8910
8100+8910

1ppm (o)(t);-skin-

300ppmt-A3

Hexachloronapthalene
Halowax 1014
1335-87-1		

7100+8910
8100+8910

0.2mg/m3 (o)(t);2mg/m3-skin-				OV/Nn-Hexane
Hexane, Hexyl hydride, normal-Hexane OV
7100
50ppm (t);110-54-3			
8100
500ppm (o);				 -skin-1100ppm [10%lower explosion
limit]

Substance for which
ACGIH BEI exists		

15

		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLH

1,600ppm

2-Hexanone
591-78-6

Butyl methyl ketone, MBK,
OV
7100
Methyl butyl ketone, 		
8100
Methyl n-butyl ketone			

5ppm (t);100ppm (o);10ppm (s)(t);-skin-

Hexone108-10-1

Methyl Isobutyl Ketone, Isobutyl
FF-OV
9001/2/3+
methyl ketone, 4-Methyl 2-pentanone, 		
7100
MIBK			

20ppm (t)500ppm100ppm (o)		
75ppm (s)(t)		

Comments

t-A3
Substance for which
ACGIH BEI exists

sec-Hexyl acetate
1,3-Dimethylbutyl acetate;
FF-OV
9001/2/3+
50ppm (o) (t)500ppm108-84-9
Methylisoamyl acetate		
7100 									
						
						

Add particulate
prefilter if particulate
is present; ACGIH NIC
to 20ppm(t) and
50ppm(s)(t)2,4-Dihydroxy-2-methylpentane;
FF-OV
9001/2/3+
2-Methyl-2,4-pentanediol; 		
7100
4-Methylpentane-2,4-diol							*Vapor fraction**Aerosol only,
measured as inhalable
fraction of aerosol

Hexylene glycol
107-41-5

25ppm (t)*N.D.
50ppm (s)(t)*		
10ppm**				

Hydrogen Bromide
10035-10-6

Hydrobromic acid,AG
Anhydrous hydrogen bromide;		
Aqueous hydrogen bromide

7200
8200

3ppm (o)2ppm (c)(t)30ppm

Hydrogen Chloride
7647-01-0

Hydrochloric acidAG(when in aqueous form)		

7200
8200

2ppm (c)(t)
50ppm
t-A4
5ppm (c)(o)			

Hydrogen Fluoride (as F)
7664-39-3

Anhydrous hydrogen fluoride;
FF-AG
9001/2/3+
Aqueous hydrogen fluoride		
7200/7300/(i.e., Hydrofluoric acid); HF-A		
7600
				
				

0.5ppm (t)*30ppm
2ppm (c)(t)*		
3ppm (o)*+*as F,-skin-

Substance for which
ACGIH BEI exists

Sulfuretted Hydrogen;AG
7200
Hydrosulfuric Acid; Hepatic Gas; 		
8200
Sewer Gas			
				
				

1ppm (t);100ppm5ppm (s)(t); 		
20ppm (c)(o); 		
[50ppm 10 min peak/ 		
8 hr shift] (c)(o)Escape only;
Poor warning;
Olfactory fatigue;(t)Hydrogen Sulfide
7783-06-4

Hydrogenated Terphenyls Hydrogenated diphenylbenzenes,
RP
2740R95
0.5ppm (t)61788-32-7
Hydrogenated phenylbiphenyls,		
2360P100
Hydrogenated triphenyls		
4300P95
			4400P100
			7940/7990
			8940/8970/8990
Hydroquinone
123-31-9

p-Benzenediol; 1,4-Benzenediol;
FF-OV/N95 9001/2/3+
Dihydroxybenzene; 1,4-		
7100+8910
Dihydroxybenzene; Quinol			

Hydrazine
Diamine; Hydrazine
FF-AM
9001/2/3+
302-01-2(anhydrous); Hydrazine base		
7400
				

N.D.

1mg/m3 (t)50mg/m3
2mg/m3 (o)		
-DSEN-		

t-A3

0.01ppm(t)1ppm(o)-skin-

t-A3

50ppm

2-Hydroxypropyl Acrylate HPA, b-Hydroxypropyl acrylate,
OV
7100/8100
0.5ppm(t)999-61-1
Propylene glycol monoacrylate			-skin				 DSEN

N.D.

-IIndium, Dusts
Indium MetalN
EZ22/EZ23N95 0.1mg/m3 (t)N.D.
7440-74-6			
2200/2300N95						water soluble			2600/2700N95{}

Iron Oxide, Dust & Fume Ferric oxide, Iron(III) oxideN2310/2315N99 5mg/m3 (t)*,2,500mg/m3(as Fe)			
2400/2800N95 10mg/m3 (o)(as Fe)1309-37-1						Iron Salts, Soluble (as Fe) FeSO4: Ferrous sulfate, Iron(II) sulfate;		
FeCl2: Ferrous chloride, Iron(II) chloride; N
Fe(NO3)3: Ferric nitrate, Iron(III) nitrate;		
Fe(SO4)3: Ferric sulfate, Iron(III) sulfate;
FeCl3: Ferric chloride,Iron (III) chloride

EZ22/EZ23N95 1mg/m3 (t)2200/2300N95
2400/2800N95

t-A4, *Measured as
resperable fraction		
of aerosol

N.D.

Isoamyl Acetate
123-92-2Banana oil, Isopentyl acetate,
OV
7100
3-Methyl-1-butanol acetate,		
8100
3-Methylbutyl ester of acetic acid,			3-Methylbutyl ethanoate

Isoamyl Alcohol Primaryand Secondary
123-51-3
6032-29-7

Primary fermentation amyl alcohol,
FF-OV
9001/2/3+
100ppm (o)(t)500ppmFusel oil, Isobutyl carbinol, Isopentyl 		
7100
125ppm (s)(t)		
alcohol, 3-Methyl-1-butanol, 					Primary isoamyl alcohol; Secondary
3-Methyl-2-butanol, Secondary
isoamyl alcohol

Add particulate
prefilter if particulate
is present

N-Isopropylaniline
768-52-5

N-IPA; Isopropylaniline;
OV
7100/8100
N-(1-Methylethyl)-benzenamine;			
N-Phenylisopropylamine

Substance for whichan ACGIH BEI exists

16100ppm (o)1,000ppm
50ppm (t)		
100ppm (s)(t)2ppm(t)		-skin-		

Add 8910 if particulate
is present.

		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHIsobutyl Acetate110-19-0

Isobutyl ester of acetic acid,
FF-OV
2-Methylpropyl acetate, 2-Methylpropyl		
ester of acetic acid, ß-Methylpropyl
ethanoate

9001/2/3+
150ppm (o)7100 		

1300ppm[10% LEL]

Isobutyl Alcohol
78-83-1

IBA, Isobutanol, Isopropylcarbinol,
FF-OV
2-Methyl-1-propanol		9001/2/3+
7100

1600ppm

50ppm (t)100ppm (o)Isooctyl Alcohol
Isoctacol; Oxooctyl Alcohol
OV
7100/8100
50ppm(t)26952-21-6				 -skin-

N.D.

Isophorone
78-59-1

Isoacetophorone;
OV
3,5,5-Trimethyl-2-cyclohexenone;		
3,5,5-Trimethyl-2-cyclo-hexen-1-one

7100
8100

25ppm (o);200ppm5ppm (c)(t)		

2-Isopropoxy-Ethanol

Ethylene glycol isopropyl ether,
OV-Hydroxyethyl isopropyl ether, 		Isopropyl Cellosolve®, Isopropyl

7100
8100

25ppm (t);-skin-

Isopropyl Alcohol
67-63-0

Dimethyl carbinol, IPA, Isopropanol,
FF-OV
9001/2/3+
2-Propanol, sec-Propyl alcohol, 		
7100
Rubbing Alcohol			

400ppm (o)2000ppm
200ppm (t)[10% LEL]
400 (s)(t)		

Isopropyl Acetate108-21-4

Isopropyl ester of acetic acid,
FF-OV
9001/2/3+
1-Methylethyl ester of acetic acid, 		
7100
2-Propyl acetate			250ppm (o)109-59-1

Isopropyl Glycidyl Ether
4016-14-2

1,2-Epoxy-3-Isoppropoxypropane;
FF-OV
IGE; Isopropoxymethyl oxirane		

9001/2/3+
7100

Add 8910 if particulate
is present; t-A3

N.D.

Substance for which
ACGIH BEI exists;
t-A4

1800ppm

Isopropyl Amine
2-aminopropane, monoisopropylamine, FF-OV
9001/2/3+
5ppm (o) (t)750ppm75-31-0
2-propylamine, sec-propylamine		
7100
10ppm (s)(t)		
						

Isopropyl Ether
Diisopropyl ether, Diisopropyl
OV
7100
108-20-3oxide, 2-Isopropoxy propane		
8100
				

Comments

ACGIH NIC to 2ppm(t),5ppm (s)(t)-skin-

500ppm (o);250ppm (t);310ppm (s)(t)1,400ppm;[10% Lower
explosion limit]

50ppm (o)(t);75ppm (s)(t)400ppm		-KKaolin
China Clay; Aluminum Silicate
N
EZ22/EZ23N95 Total dust 15mg/m3 (o); 		
1332-58-7			
2200/2300N95 Respirable fraction 					
2600/2800N95 5mg/m3 (o), 2mg/m3 (t)		
						
						
						

t-A4, Particulatecontaining noAsbestos and <1% 		
Crystalline Silica. Does
not include stearates
of toxic metals

Kerosene
OV/RP
7100+
8008-20-6			
8970/7940
			
8100+
			8970/8940

t-A3, avoid prolonged
and repeated skincontact

200ppm (t) as total		
Hydrocarbon vapor 		-skin-		

-LLacquer Thinner(See Specific Ingredients)					Lead, Metal* andLead metal, Plumbum
NRP100Inorganic Compounds			
(Dust and Fume)			
7439-92-1			
			

2730N1000.05mg/m3 (o)(t)100mg/m3
2360P100		
(as Pb)
4400P100			
7940/7990			
8940/8990			

Limestone
Calcium carbonate,N1317-65-3
Natural calcium carbonate					

EZ22/EZ23N95 Total dust 15mg/m3 (o), 		
2200/2300N95 Respirable 		
2600/2700N95 fraction 5mg/m3 (o)		

BHC; HCH; γ-Hexachlorocyclohexane;
OV/NRP100 7100+
gamma isomer of
R95/P100
8970/7940
1,2,3,4,5,6-Hexachlorocyclohexane		
8100/8940
			8970/8940
Lindane58-89-90.5mg/m3 (o)(t);-skin-

50mg/m3

Lithium Hydride
Lithium monohydrideN
EZ22/EZ23N95 0.025mg/m3 (o)0.5mg/m3
7580-67-8			
2200/2300N95 0.05 (c)(t)*		
			
2600/2700N95			

See 29CFR1910.1025
t-A3, Substance forwhich an ACGIH BEI
exists; 29CFR1910.62
Construction standard

t-A3			

*Measured asinhalable fraction of		the aerosol-MMagnesite
546-93-0

Carbonate magnesium, Hydromagnesite, N
Magnesium carbonate,		Magnesium(II) carbonate		

EZ22/EZ23N95 Total dust
N.D.
2200/2300N95 15mg/m3 (o); Respirable 		
2600/2700N95 fraction 5mg/m3 (o)		

Magnesium Oxide Fume
Magnesia FumeN
2310/2315N99 15mg/m3 (o)**750mg/m3
1309-48-4				
10mg/m3 (t)*								
						

*Measured as inhable
fraction of theaerosol t-A4**Total particulate fume17

		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments

S-[1,2-bis(ethoxycarbonyl) ethyl]O,
OV/RP
7100+
Total dust
250mg/mO-dimethyl-phosphorodithioate; Diethyl		
8970/7940
15mg/m3 (o),		
3(dimethoxyphosphinothioylthio) succinate		
8100+
1mg/m (t)*; 		
			8970/8940-skin-								

Substance for whichan ACGIH BEI exists,
t-A4; *Measured as		inhalable fraction andvapor

cis-Butenedioic anhydride;
FF-OV/N95
9001/2/3+
0.0025ppm(t)*10 mg/m3
2,5-Furanedione; Maleic acid		
7100+8910
0.25ppm(o) 		
anhydride; Toxilic anhydride			DSEN; RSEN								

t-A4
*Measured asinhalable fraction
and vapor

Manganese*, Dust
Colloidal manganese, Manganese-55
N& Inorganic			
Compounds (as Mn)			
*7439-96-5

TLV-A4*Respirable**Inhalable

Malathion
121-75-53Maleic Anhydride
108-31-6

EZ22/EZ23N95 5mg/m3 (c)(o);500mg/m3
2200/2300N95 0.02mg/m3(t)*(as Mn)
2600/2700N95 0.1mg/m3(t)**		

Manganese,
Colloidal manganese, Manganese-55
N
2310/2315N99 0.02mg/m3 (t)*;500mg/m3
Metal Fume (as Mn)			
2400/2800N95 5mg/m3 (c)(o)(as Mn)7439-96-5				 0.1mg/m3 (t)**		
Marble(See Calcium Carbonate)				

Mesityl Oxide
141-79-7

Isobutenyl methyl ketone,
FF-OV
9001/2/3+
Isopropylideneacetone, Methyl 		
7100
isobutenyl ketone, 4-Methyl-3-			
penten-2-one

15ppm (t)25ppm (o)25ppm (s)(t)1400ppm[10% LEL]

Methacrylic Acid
79-41-4

Methacrylic acid (glacial),
FF-OV
Methacrylic acid (inhibited), 		
a-Methacrylic acid, 2-Methylacrylicacid, 2-Methylpropenoic acid20ppm(t)N.D.

9001/2/3+
7100*Respirable**Inhalable		

Methanethiol(See Methyl Mercaptan)								74-93-1		
2-Methoxyethyl Acetate110-49-6Ethylene Glycol Methyl Ether Acetate;
OV
7100
Glycol Monomethyl Ether Acetate; 		
8100®
Methyl Cellosolve Acetate ; EG-ME			

0.1ppm (t);200ppm25ppm (o); 		
-skin-		

4-Methoxyphenol
150-76-5

Hydroquinone monomethyl ether,N
EZ22/EZ23N95		
p-Hydroxyanisole, Mequinol, 		
2200/2300N95 5mg/m3 (t)p-Methoxyphenol		2600/2700N95
Monomethyl ether hydroquinone

Substance for which
ACGIH BEI exists

N.D.

Methyl Acetate
Methyl ester of acetic acid,
OV
7100
200ppm (o)(t);79-20-9
Methyl ethanoate		
8100
250ppm (s)(t)					

3100ppm[10% Lower
explosion limit]

Short service life

Methoxycarbonylethylene, Methyl
FF-OV
9001/2/3+
ester of acrylic acid, Methyl 		
7100
propenoate							

250ppmt-A4

Methyl Acrylate
96-33-3

2ppm (t)10ppm (o)-skin-DSEN-

Methyl Cellosolve®
109-86-4

EGME, Ethylene glycol monomethyl
OV
7100
ether, Glycol monomethyl ether,		
8100
2-Methoxyethanol 			

0.1ppm (t);200ppm25ppm (o); 		
-skin-

5-Methyl-3-Heptanone
541-85-5Amyl ethyl ketone,
FF-OV
Ethyl amyl ketone, 		
3-Methyl-5-heptanone

9001/2/3+
7100

10ppm (t)25ppm (o)Methylamine
74-89-5

Aminomethane, MethylamineAM(anhydrous), Methylamine (aqueous),		
Monomethylamine

7400
8400

10ppm (o), 5ppm (t);100ppm
15ppm (s)(t)		

Substance for which
ACGIH BEI exists

100ppmMust use goggles forhalf mask

Methyl Cellosolve Acetate® (See 2-Methoxyethyl Acetate)								110-49-6								Methyl Chloroform
71-55-6

Chlorothene; 1,1,1-Trichloroethane;OV
1,1,1-Trichloroethane (stabilized)		

Methylcyclopentadienyl
Manganese Tricarbonyl12108-13-3

CI-2, Combustion Improver-2,
OV/N
7100+8910
0.2mg/m3 (t);N.D.
If heat involved, use
Manganese		
8100+8910-skin-		supplied air		tricarbonylmethylcyclopentadienyl,
2-Methylcyclopentadienyl
manganese tricarbonyl, MMT

Methylcyclohexane
108-87-2

cyclohexylmethane;
OV
7100/8100
hexahydrotoluene			

18

7100
8100

350ppm (t)(o)700ppm450ppm (s)(t) 		

400ppm(t)500ppm(o)ACGIH BEI exists;
t-A4

1200ppm (LEL)		

		
Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

4,4-Methylenedianilene
4,4-Diaminodiphenylmethane; MDA
NRP1002730N100
101-77-9			
2360P100
			
4400P100			
7940/7990
			8940/7990

TLV(t) PEL(o)IDLH0.01ppm (o);N.D.
0.1ppm (t); 		
0.1ppm (s)(o); 		
-skin-		Methyl Ethyl Ketone
78-93-3

see 2-Butanone

Methyl Ethyl Ketone
Peroxide1338-23-4

2-Butanone peroxide; Ethyl methyl
FF-OV
ketone peroxide; MEKP; MEK peroxide;		
Methyl ethyl ketone hydroperoxide

9001/2/3+
7100

0.2ppm(t)(c)N.D.

Methyl Isoamyl Ketone
110-12-3

Isoamyl methyl ketone, Isopentyl
FF-OV
9001/2/3+
methyl ketone, 2-methyl-5-hexanone,		
7100
5-Methyl-2-hexanone, methyl-2-			
Hexanone, MIAK

20ppm (t)100ppm (o)50ppm (s)(t)N.D.

Methyl Hydrazine
MMH, Monomethylhydrazine
FF-AM
9001/2/3+
0.01ppm(t)60-34-4			
7400
0.2(c)(o)				 -skinMethyl Isobutyl Carbinol Methyl Amyl Alcohol
OV
7100
108-11-2			
8100
				
				

20 ppmComments

Need OV/NRP100 ifheat is involved. See
29 CFR 1910.1050; 		
O-Ca; t-A3

t-A3

20ppm (t);400ppm25ppm (o); 		
40ppm (s)(t);		
-skin-

Methyl Isobutyl Ketone108-10-1

see Hexone

Methyl Isopropyl Ketone563-80-4

2-Acetyl propane, Isopropyl methyl
FF-OV
ketone, 3-Methyl-2-butanone, 		
3-Methyl butan-2-one, MIPK

9001/2/3+
7100

20ppm (t)Methyl (n-amyl) Ketone
110-43-0

Amyl methyl ketone, n-Amyl
OVmethyl ketone, 2-Heptanone,		Amyl methyl ketone

7100
8100

100ppm (o);800ppm50ppm (t)		

Add 8940 or 7940 if
Particulate is present

Methyl Mercaptan
74-93-1

Mercaptomethane, Methanethiol,
OV
Methyl sulfhydrate		

7100
8100

0.5ppm (t);150ppm10ppm (c)(o)		

Very short service life

N.D.

Methyl Methacrylate
80-62-6

Methacrylate monomer,
OV
7100
100ppm (o)1,000ppm
Methyl ester of methacrylic acid,		
8100
50ppm (t)		
Methyl-2-methyl-2-propenoate			100ppm (s)(t)				 -DSEN				 -skin-		t-A4

Azophos®; O,O-DimethylOV/P100
7100+7940
0.02mg/m3 (t);*N.D.
O-p-nitrophenylphosphorothioate;		
8100+8940-skin-		
Parathion methyl											
						

Substance for whichan ACGIH BEI exists;
t-A4; *Measured asinhalable fraction
and vapor

Methyl Parathion
298-00-0

Methyl Propyl Ketone
107-87-9

see 2-Pentanone

a-Methyl Styrene
98-83-9

1-Methyl-1-Phenyl-Ethylene;
OV
7100
10ppm (t);700ppm
Add 8970 or 7940 if
AMS; 2 Phenylpropylene; 		
8100
100ppm (c)(o) 		
Particulate is present
Isopropenyl Benzene					t-A3

Mica (less than 1% quartz) Biotite, Lepidolite, Margarite, Muscovite, N
EZ22/EZ23N95 20mppcf (o);**1,500mg/m3
12001-26-2
Phlogopite, Roscoelite, Zimmwaldite		
2200/2300N95 3mg/m3 (t)*		
			
2600/2700N95			
						
						
						
						
						
						
						
						
Mineral Spirits

Does not include
strearates of toxic
metals; *Measured as
respirable fractionof aerosol**<1% Silica
ACGIH NIC to 0.1
respirable fraction ofaerosol and containing
no asbestos and <1%
crystaline silica(See Stoddard Solvent)					Molybdenum - 		N
EZ22/EZ23N95 5mg/m3 (o)1,000mg/m3
Soluble Compounds – Inorganics only (as Mo)		
2200/2300N95 0.5mg/m3 (t)*(as Mo)7439-98-7			2600/2700N95 water soluble 		*Respirable fraction;
t-A3

Molybdenum - Insoluble		
N
Compounds and Metal Dust – Inorganics only (as Mo)		
7439-98-7			

*Total dust;***Respirable fraction
and **inhalable		
fraction 		{}

EZ22/EZ23N95 10mg/m (t)**5,000mg/m3
2200/2300N95 15mg/m3 (o)*(as Mo)2600/2700N95 3mg/m3 (t)***		3						

Monochlorobenzene
108-90-7(See Chlorobenzene)								Morpholine
110-91-8

Diethylene imidoxide; Diethylene
FF-OV
oximide, Tetrahydro-1,4-oxazine;		
Tetrahydro-p-oxazine

Muriatic Acid7647-01-0(See Hydrogen Chloride)								9001/2/3+
7100

20ppm (o) (t)-skin-

1400ppm[10% LEL]

t-A4

19

		
Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments-NNaphtha (Coal tar)
8030-30-6

crude solvent coal tar naptha, HighFF-OV
solvent naptha, Naptha		

9001/2/3+
100ppm (o)7100 		

Napthalene
Naphthalin, Tar camphor, White tar
OV/N
91-20-3			

7100+8910
8100+8910

1000ppm[10% LEL]

10ppm (o)(t);250ppm-skin-		

ACGIH BEI exists
t-A3		

a-Napthylamine
1-Aminonaphthalene, 1-Naphthylamine				N.D.
134-32-7						See 29CFR1910.1003
and 1004; O-Ca

2-Aminonaphthalene, 				
N.D.
2-Naphthylamine
water soluble 				See 29CFR1910.1003,
t-A1; O-Ca

b-Napthylamine
91-59-8{}

Nickel, Soluble		N
EZ22/EZ23N95 0.1mg/m3 (t)*10mg/m3 (as Ni)
Compounds (as Ni)
water soluble
2200/2300N95 1mg/m3 (o)		
(Inorganic only)			 2600/2700N95(Not including Nickel Carbonyl)*Inhalable fraction,
t-A4			

Nickel, Insoluble 		N
EZ22/EZ23N95 1.0mg/m3 (o),10mg/m3 (as Ni)
Compounds (as Ni)
		
2200/2300N95 0.2mg/m3 (t)*		
(Not including Nickel Carbonyl)			
2600/2700N95*Inhalable fraction,
t-A1

Nickel, Metal		
N
EZ22/EZ23N95 1mg/m3 (o),10mg/m3 (as Ni)
7440-02-0
		
2200/2300N95 1.5mg/m3 (t)*					2600/2700N95*Inhalable fraction,
t-A5			{

Nicotine
3-(1-Methyl-2-Pyrrolidyl) Pyridine
54-11-5		

}

OV/RP

7100+8970/7940 0.5mg/m3 (o)(t);
8100+8970/8940 -skin-

5mg/m3p-Nitroaniline
100-01-6

para-Aminonitrobenzene, 4-Nitroaniline, OV/N
7100+8910
4-Nitrobenzenamine, 		
8100+8910
p-Nitrophenylamine, PNA			

3mg/m3 (t);300mg/m3
6mg/m3 (o)		
-skin-		

Nitrobenzene
98-95-3

Essence of mirbane,
OV
Nitrobenzol, Oil of mirbane		

1ppm (o)(t);200ppmt-A3-skin-				

7100
8100

Substance for whichan ACGIH BEI exists
t-A4		

Nitroethane
Nitroetan
FF-OV
9001/2/3+
79-24-3			7100

100ppm (o) (t)Nitromethane
Nitrocarbol­­
OV
75-52-5			

7100
8100

20ppm (t)750ppm100ppm (o)		

1-Nitropropane
Nitropropane, 1-NP
OV
108-03-2			

7100
25ppm (t)(o)1000ppm
8100			

t-A4

7100
8100

t-A3

2-Nitropropane
79-46-9

Dimethylnitromethane,
OV
iso-Nitropropane, 2-NP		Nonanen-Nonane, Nonyl hydrideOV
111-84-2			
Nuisance particulates

1000ppm

10ppm (t)100ppm25ppm (o)		

t-A3

7100
200ppm (t)N.D.			8100			See (Particulates not otherwise classified)-OHalowax 1051,
OV/N
7100+8910
0.1mg/m3 (o)(t);1mg/m3*
1,2,3,4,5,6,7,8-Octachloronaphthalene,		
8100+8910
0.3mg/m3 (s)(t); 		
Perchloronaphthalene			-skin-								
						
						

Add 8910 if particulate
is present.
*NIOSH set“Effective” IDLH at
10x the Recommended
Exposure Limit (REL)

Octanen-Octane, normal-Octane
OV
7100
500ppm (o)*111-65-9			
8100
300ppm (t)					*n-Octane only

Octachloronapthalene
2234-13-1

1,000ppm;[10% Lower
explosion limit]

Oil Mist (Mineral)
White Mineral Oil; Heavy Mineral
RP
2760P100,
5mg/m3 (o)2,500mg/m3
8021-95-1
Oil; Paraffin Oil		
2360P100
			
4300P95,						4400P100
			2740R95/8970
			7940/7990
			8940/8990*		
Oxalic Acid
144-62-7

Ethanedioic acid, Oxalic acid (aqueous), OV/N
Oxalic acid dihydrate		

7100+8910
8100+8910

1mg/m3 (o)(t);2mg/m3 (s)(t)		

500mg/m3-PParaffin Wax Fume		
RP
2740R95/
2mg/m3 (t)8002-74-2			2360P100/8970
			7940/7990
			8940/8990
1,1’-Dimethyl-4,4’-bipyridinium dichloride; OV/NRP
7100+8910/
N,N’-Dimethyl-4,4’-bipyridinium dichloride;		
8970/8940
Paraquat chloride; Paraquat dichloride		
8100+8910/
			8970/8940
				
				
20
				
Paraquat Dichloride
1910-42-5

N.D.

0.5mg/m3 (o);*1mg/m3 (t)0.05mg/m3 (t);** 		*Respirable dust as		
Fraction of the aerosol		**Measured as inhalable		
fraction of the aerosol-skin-t-A4

		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments

O,O-Diethyl-O(p-nitrophenyl)
OV/P100
7100+7940
0.1mg/m3 (o);10mg/m3
phosphorothioate; Diethyl parathion;		
8100+8940-05mg/m3 (t)*		
Ethyl parathion;			
-skin-								
						

Substance for whichan ACGIH BEI exists;
t-A4; *Measured asinhalable fraction
and vapor

Particulates Not Otherwise 		NRP
See note**
Classified (PNOC)				
				
				
				

**Caution is advised
category includes
many materials, R or P
filter is suggested
if oils are present

Parathion
56-38-2

Total dust 15mg/m3 (o) 		
or 50mppcf(o);		
Respirable fraction 		
5mg/m3 (o)		
or 15mppcf (o)		

Pentachloronapthalene
Halowax® 1013;
OV/N
7100+8910
0.5mg/m3 (o)(t);**5mg/m3*1321-64-8
1,2,3,4,5-Pentachloronaphthalene		
8100+8910-skin-								
						
						
						
						

*NIOSH set“Effective” IDLH at
10x the Recommended
Exposure Limit (REL).
**Measured as inhalable
fraction and vapor
for TLV

Pentachlorophenol
PCP; Penta;
OV/N
7100+8910
0.5mg/m3 (o);2.5mg/m3
87-86-5
2,3,4,5,6-Pentachlorophenol		
8100+8910
0.5mg/m3 (t)*;		
				 1.0mg/m3 (s)(t)*						-skin-								

Substance for whichan ACGIH BEI exists;
t-A3; *Measured asinhalable fraction
and vapor

Pentaerythritol
115-77-5

2,2-bis(Hydroxymethyl)-1,3-propanediol;		
EZ22/EZ23N95
Methane tetramethylol;N
2200/2300N95
Monopentaerythritol; PE;		
2600/2700N95
Tetrahydroxymethylolmethane; 			
Tetramethylolmethane			

10mg/m3 (t); Total
dust 15mg/m3 (o);Respirable fraction
5mg/m3 (o)N.D.

2-Pentanone
107-87-9

Methyl Propyl Ketone, MPK,
FF-OV
Ethyl acetone		

9001/2/3+
7100

200ppm (o)150ppm (s)(t)1500ppm

Perchloroethylene

see tetrachoroethylene

Perchloromethyl
Mercaptan
594-42-3

PCM, PMM, Trichloromethane sulfenyl
OV
chloride, Trichloromethyl sulfur chloride		

7100
8100

0.1ppm (o)(t)10ppm			PerliteSodium Potassium Aluminum Silicate		
93763-70-3
Expanded perliteN			

EZ22/EZ23N95 Total Dust
N.D.
2200/2300N95 15mg/m3 (o); Respirable
2600/2700N95 fraction 5mg/m3 (o)				

Petroleum Distillates
Petroleum Naptha; Aliphatic
OV
7100
500ppm (o)1,100ppm;(Naptha)Petroleum Naptha; Rubber		
8100		
[10% Lower
8002-05-9
Solvent				explosion limit]						Odors vary. Must havegood warning properties
to use 8100 or 7100.
Specific TLV’s apply

Phenol108-95-2

Carbolic acid, Hydroxybenzene,
OV/N
Monohydroxybenzene, Phenyl alcohol,		Phenyl hydroxide

7100+8910
8100+8910

5ppm (o)(t);-skin-

250ppmSubstance for which an
ACGIH BEI exists; t-A4

p-Phenylene Diamine
106-50-3

4-Aminoaniline; 1,4-Benzenediamine;
OV/Np-Diaminobenzene; 1,4-Diaminobenzene;		
1,4-Phenylene diamine

7100+8910
8100+8910

0.1mg/m3 (o)(t);25mg/m3-skin-		

Use supplied air
if heat is involved; t-A4

Phenyl Ether, Vapor
101-84-8Diphenyl ether, Diphenyl oxide,
OV/N
Phenoxy benzene, Phenyl oxide		

7100+8910
8100+8910

1ppm (o)(t);2ppm (s)(t)Phenyl Ether - Biphenyl
Mixture; Vapor
8004-13-5

Dowtherm™ A, Diphenyl Oxide OV/N
Diphenyl Mixture		

7100+8910
1ppm (o)10ppm
8100+8910			

Phenylphosphine
Fenylfosfin, PF, Phosphaniline
OV
7100/8100
0.05ppm(c)(t)638-21-1					100ppm
Add 8910 if Particulate
is present

N.D.		

Phenylethylene
100-42-5(see Styrene Monomer)								Phosphoric Acid7664-38-2

Orthophosphoric acid, Phosphoric
FF-N95acid (aqueous), White phosphoric 		acid9001/2/3+
7940/7990

1mg/m3 (o)(t)3mg/m3 (s)(t)1000mg/m3

Phosphorus Pentasulfide Phosphorous persulfide, Phosphorous 		
EZ22/EZ23N95 1mg/m3 (o)(t);1314-80-3
sulfide, sulfur phosphideN
2200/2300N95 3mg/m3 (s)(t)			2600/2700N95

250mg/m3

Phosphorous Trichloride Phosphorus chloride
FF-AG
7719-12-2			
			

25 ppm

9001/2/3+
7200

0.2ppm(t)0.5ppm(s)(t)0.5ppm(o)21		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

Phthalic Anhydride
Phosphoric Sulfide
OV/N
7100+8910
85-44-9			
8100+8910
				
				
				
				
m-Phthalodinitrile
Isophthalodinitrile; IPN;
N
626-17-5
m-Dicyanobenzene					

TLV(t) PEL(o)IDLH2ppm (o)10ppm.0003ppm (t)*		
.0009ppm (s)(t)*		
DSEN		
RSEN
-skin-		

EZ22/EZ23N95 5mg/m3 (t)*N.D.
2200/2300N95			
2600/2700N95			

Comments
t-A4; *Measured
as inhalable
fraction and vapor*Measured asinhalable fraction
and vapor

Picric Acid
Phenol trinitrate; 2,4,6-TrinitrophenolN
EZ22/EZ23N95 0.1mg/m3 (o)(t);75mg/m3
88-89-1			
2200/2300N95 -skin-								2600/2700N95
3
3
PindoneTert-Butylvalone, mistN
EZ22/EZ23N95 0.1mg/m (o)(t)100mg/m
83-26-1
1,3-Dioxo-2-Pivaloy-Lindane;		
2200/2300N95						Pival; Pivalyl; 2 Pivalyl-1-3-inandione		
2600/2700N95
Plaster of Paris
26499-65-0

See Gypsum			

Platinum Metal,
Platinum black, Platinum metal,		EZ22/EZ23N95 1mg/m3 (t)Dusts and Mists
Platinum spongeN
2200/2300N95 water-based
7440-06-4			2600/2700N95{

Platinum Soluble Salts
7440-06-4

Synonyms vary depending upon the
FF-N95
specific soluble platinum salt		

9001/2/3+
7940/7990

Portland Cement
Hydraulic Cement; Cement; 		
EZ22/EZ23N95
65997-15-1
Portland Cement Silicate
N
2200/2300N95
			
2600/2700N95
				
				

}

.002mg/m3 (o)(t)N.D.

4mg/m3 (as Pt)

Total dust
5,000mg/m3
15mg/m3 (o)		
or 50mppcf (o);		
Respirable fraction 		
5mg/m3 (o); 1mg/m3 (t)*		

Potassium Hydroxide
Caustic Potash; Lye; Potassium Hydrate		
EZ22/EZ23N95 2mg/m3 (c)(t)1310-58-3		
N
2200/2300N95
			2600/2700N95*Measured as
respirable fraction of
the aerosol; t-A4

N.D. 		

Propargyl Alcohol
107-19-7

1-Propyn-3-ol; 2-Propyn-1-ol;
OV
2-Propynyl alcohol		

7100
8100

1ppm (t)-skin-

N.D. 				Propionic Acid
79-09-4

Carboxyethane, Ethanecarboxylic acid,
FF-OV
Ethylformic acid, Metacetonic acid,		
Methyl acetic acid, Propanoic acid9001/2/3+
7100

10ppm (t)N.D.

n-Propyl Acetate109-60-4

Propylacetate, n-Propyl ester of
FF-OV
acetic acid		

9001/2/3+
7100

200ppm (o)(t)1700ppmn-Propyl Alcohol
1-propanol, n-propanol, propanol,
FF-OV
9001/2/3+
100ppm (t)800ppm71-23-8Ethyl carbinol		
7100
200ppm (o)		
						
						

Add particulate
prefilter if particulate
is present
t-A4

Propylene Dichloride
Dichloro-1,2-propane;
OV
7100
10ppm (t);400ppm
78-87-5
1,2-Dichloropropane		
8100
75ppm (0)				 -DSEN-		t-A4

Propylene Glycol
Ditrintrate
6423-43-4

PGDN; Propylene
FF-OV
glycol-1,2-dinitrate;		
1,2 Propylene glycol dinitrate

9001/2/3+
7100

2-Methylaziridine;
FF-OV
9001/2/3+
2-Methylethyleneimine;		
7100
Propyleneimine (inhibited); Propylenimine							Propylene Imine
75-55-80.05ppm
N.D.
-skin-		

Substance for whichan ACGIH BEI exists

0.2ppm (t),0.4ppm (s)(t),2ppm(o)-skin-

t-A3;

100ppmn-Propyl Nitrate
Propyl ester of nitric acid
OV
7100/8100
25ppm(t)500 ppm
627-13-4				
40ppm(s)(t) 		
				 25ppm(o)Substance for which
ACGIH BEI exists

Propylene Glycol
Monomethyl Ether
107-98-2

Dowtherm® 209,
OV
1-Methoxy-2-hydroxypropane,		
1-Methoxy-2-propanol,
2-Methoxy-1-methylethanol,
Propylene glycol methyl ether

7100
8100

50ppm (t);N.D.
100ppm (s)(t)					Pyrethrum
8003-34-7

Cinerin I or II; Jasmolin I or II;
OV/P100
Pyrethrin I or II; Pyrethrum I or II 		[Pyrethrum is a variable mixture of
Cenerin, Jasmolin and Pythrin]

7100/7940
8100/8940

5mg/m3 (o)(t)

7100
8100

5ppm (o)1,000ppm
1ppm (t)		

Pyridine
Azabenzene; Azine
OV
110-86-1			

22

5,000mg/m3

t-A4

t-A3		

		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments-QQuartz(See Silica, Crystalline)

Quinone106-51-4

Benzoquinone, 1,4-Benzoquinone;
FF-OV/N95
p-Benzoquinone, 1,4-Cyclohexadiene		
dioxide, p-Quinone

9001/2/3+
7100/8910

0.1ppm (o)(t)22ppm

1,3-Benzenediol; m-Benzenediol;
OV/N
1,3-Dihydroxybenzene; 		
m-Dihydroxybenzene;
3-Hydroxyphenol; m-Hydroxyphenol

7100/8910
8100/8910

10ppm (t);20ppm (s)(t)

N.D.

t-A4

100mg/m3(as Rh)t-A4

Rhodium, Metal Fume (as Rh)
N
2310/2315N99 0.1mg/m3 (o)7440-16-6			
2400/2800N95 1mg/m3 (t)			4800N95

100mg/m3(as Rh)t-A4

Rhodium, 		
NRP1002730N100Soluble Compounds (as Rh) 		
2360P100
			4400P100
			4700N100
			7940/7990
			8940/8990

2mg/m3 (as Rh)

t-A4-RResorcinol
108-46-3

Rhodium, Metal* and 		N
Insoluble Compounds, 			
Dusts and Mists (as Rh)			
*7440-16-6

EZ22/EZ23N95 0.1mg/m3 (o);2200/2300N95 1mg/m3 (t)2600/2700N95 water-based{}

0.001mg/m3 (o);0.01mg/m3 (t)RonnelO,O-Dimethyl O-(2,4,5-trichlorophenyl)
OV/NRP100 7100+7940
5mg/m3 (t)*300mg/m3
299-84-3
phosphorothioate; Fenchlorophos		
8100+8940
15mg/m3 (o)		
						
						
						
Rotenone
83-79-4

1,2,12,12a-Tetrahydro-8,9OV/NRP100
dimethoxy-2-(1-methylethenyl)-		
[1]benzopyrano[3,4-b]furo[2,3-h][1]benzopyran-6(6aH)-one

7100+7940
8100+8940

Rouge
Iron(III)oxide, Iron oxide red, 		EZ22/EZ23N95
1309-37-1
Red iron oxide, Red oxideN
2200/2300N95
			
2600/2700N95
				

5mg/m3 (o)(t)2,500mg/m3

Substance for which
ACGIH BEI exists, 		
t-A4. *Measured as 		inhalable fraction andvapor
t-A4			

Total dust
N.D.
15mg/m3 (o); 		
Respirable fraction		
5mg/m3 (o)-SSelenium Metal 		N
EZ22/EZ23N95 0.2mg/m3 (t)1mg/m37782-49-2			
2200/2300N95		
(as Se)				
			2600/2700N95
3
Silica-Amorphous,			EZ22/EZ23N95 20mppcf (o) or
3000mg/m
3
Diatomaceous Earth		N
2200/2300N95 80mg/m (o) 				(Uncalcined)			
2600/2700N95%SiO2				61790-53-2
Silica-Crystalline
Cristobalite,** Quartz,*		
EZ22/EZ23N95 Respirable dust**14464-46-1
Tridymite,∆ Tripoli∆∆N
2200/2300N95 0.05mg/m3 (o);14808-60-7			
2600/2700N95 0.025mg/m3 (t)***∆15468-32-3					∆∆1317-95-9										SiliconElemental silicon		
7440-21-3		
N			

50mg/m3(Crystalline
quartz, tripoli)
25mg/m3(cristobalite,
tridymite)*,**t-A2; ***Measured
as respirable fraction		
of aerosol forquartz and cristobalite

EZ22/EZ23N95 15mg/m3 (o);­total dust
2200/2300N95 Respirable fraction 5mg/m3 (o)2600/2700N95					Silicon Carbide
Carbon Silicide; Carborundum; 		
EZ22/EZ23N95 Fibrous Dust
(as Silicone Carbide only) Silicon MonocarbideN
2200/2300N95 0.1mg/m3 (t) including whiskers***409-21-2			
2600/2700N95 15mg/m3 (t) total dust						 5mg/m3 (o) respirable dust						
				 Non-Fibrous Dust						 10mg/m3 *,∆						 3mg/m3 **,∆								
				 (as Silicone Carbide only)						
						
						
						
						
						

t-A2
*Inhalable fraction of
the aerosol**Respirable fractionof the aerosol***Respirable fibers
length >5µ; aspect ratio≥3:1, as determinedby the membrane filter
method at 400-450xmagnification (4-mmobjective), using phasecontrast illumination.
∆Particulate matter
containing no abestosand <1% crystaline silica

23		
Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments

Silver, Metal;N
EZ22/EZ23N95 0.01mg/m3 (o);10mg/m3 (as Ag)
Dust			2200/2300N95 0.1mg/m3 (t)					7440-22-4			2600/2700N95
Silver, Soluble 			EZ22/EZ23N95 0.01mg/m3 (o)(t)Compounds (as Ag)		
N
2200/2300N95 water-based
7440-22-4			2600/2700N95{}

10mg/m3 (as Ag)

3

Massive Talc; Steatite; 		
EZ22/EZ23N95 Total dust
3,000mg/m
Soapstone Silicate
N
2200/2300N95 20mppcf (o); 		
			
2600/2700N95			
				
				
Soapstone

Sodium Aluminum
Cryocide, Cryodust, Cryolite;
N
EZ22/EZ23N95 2.5mg/m3 (o)Flouride
Sodium Hexafluoroaluminate		
2200/2300N95		
15096-52-3			2600/2700N95
Sodium Bisulfite
7631-90-5

Monosodium salt of sulfurous acid,AG/N
7200+8910
Sodium acid bisulfite, Sodium		 8200+8910
bisulphite, Sodium hydrogen sulfite

Total dust containing
no Asbestos and <1%
Crystalline Silica

250mg/m3(as F)				

5mg/m3 (t)		

t-A4

Sodium Fluoroacetate
SFA, Sodium monofluoroacetateN
EZ22/EZ23N95 0.05mg/m3 (o)(t);2.5mg/m3
62-74-8			
2200/2300N95 -skin-								2600/2700N95
Sodium Flouride
Floridine, Sodium MonofluorideN
7681-49-4			
			

EZ22/EZ23N95 2.5mg/m3 (o)(t)*250mg/m3
2200/2300N95			
2600/2700N95			

t-A4; substance forwhich an ACGIH BEI		
exists *(as F)

Sodium Hydroxide
Caustic soda, Lye, Soda lye,N
EZ22/EZ23N95 2mg/m3 (o);10mg/m3
1310-73-2
Sodium hydrate		
2200/2300N95 2mg/m3 (c)(t)								2600/2700N95
Sodium Metabisulfite
Sodium Pyrosulfite
AG/N
8200+8910
7681-57-4			7200+8910

5mg/m3 (t)Corn starch, Rice starch,
EZ22/EZ23N95
Sorghum gum, α-Starch, Starch gum,N
2200/2300N95
Tapioca starch		
2600/2700N95
				

10mg/m3 (t)*;N.D.
15mg/m3 (o)*;Respirable fraction
5mg/m3 (o)		

Starch
9005-25-8

Stoddard Solvent
8052-41-3

Dry cleaning safety solvent,OV
Mineral spirits, Petroleum solvent, 		Spotting naphtha

7100
8100

100ppm (t)500ppm (o)

N.D.

t-A4
t-A4; *Total dust

20,000mg/m3

Strychnine
Nux vomica, StrynchnosN
EZ22/EZ23N95 0.15mg/m3 (o)(t)3mg/m357-24-9			
2200/2300N95									2600/2700N95
Styrene, Monomer
Ethenyl benzene, Phenylethylene,
OV
7100
100-42-5
Styrene monomer, Styrol, Vinyl benzene		
8100
				
				
				
				
				

10ppm (t)*;700ppm100ppm -(o); -		20ppm (s)(t)		
200ppm (c)(o) 		
[600ppm (c)(o); 		
5 min peak/any 3 hrs]
-OTO-

*Substance for whichan ACGIH BEI
exists; + -A3 		

Beet sugar, Cane sugar, Confectioner’s		EZ22/EZ23N95
sugar, Granulated sugar, Rock candy,N
2200/2300N95
Saccarose, Sugar, Table sugar		
2600/2700N95
				

10mg/m3 (t)*; 		
15mg/m3 (o)*;Respirable fraction
5mg/m3 (o)		

t-A4; *Total dust

5ppm (o);100ppm0.25ppm (s)(t)		

t-A4

Sucrose57-50-1

Sulfur Dioxide
7446-09-5

Sulfurous acid anhydride,AG
Sulfurous oxide, Sulfur oxide		Sulfur Pentafluoride
5714-22-7

Disulfur decafluoride,AG7200/8200
Sulfur decafluoride			

0.001ppm (c)(t)0.025ppm (s)(o)1 ppm

Sulfur Tetrafuoride
7783-60-0

Tetrafluorosulfurane

0.1ppm (c)(t)N.D.

1ppm (c)(t)1ppm (o)

5ppm

AG

7200
8200

7200/8200

Sulfur Monochloride
Sulfur chloride, Sulfur subchloride,
FF-AG
9001/2/3 w
10025-67-9
Thiosulfurous dichloride		
7200/7300/
			7600

Sulfuric Acid
Battery acid, Hydrogen sulfate,
AG/N
7200+8910
1mg/m3 (o)15mg/m3
7664-93-9
Oil of vitriol, Sulfuric acid (aqueous)		
8200+8910
0.2mg/m3 (t)*								
						
						
						
						

24

Must use appropriate
eye protection, t-A2
for Sulfuric Acids
contained in strong
inorganic acid mists*Measured as Thoracic
fraction of the aerosol		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments-T2,4,5-T
2,4,5-Trichlorophenoxy Acetic AcidN
EZ22/EZ23N95 10mg/m3 (o)(t)250mg/m3
t-A4
93-76-5			
2200/2300N95									2600/2700N95
Talc; (Containing noAsbestos Fibers)
14807-96-6

Non-Asbestiform Talc; 		
Hydrous Magnesium Silicate;N
Steatite Talc; Non-Fibrous Falc		

Talc (Containing
Asbestos Fibers)(Use Asbestos recs. and see 					29CFR1910.1001)					Tantalum, Metal
Tantalum-181		
& Oxide Dusts (as Ta)		
N
7440-25-7 (metal)
1314-61-0 (oxide dusts)			

EZ22/EZ23N95 Respirable dust*
1,000mg/m3
2200/2300N95 2mg/m3 (t); 		
2600/2700N95 20mppcf (o) 		

EZ22/EZ23N95 5mg/m3 (o)2200/2300N95		

*Particulate containing
no Asbestos and <1%;t-A4		Containing Crystalline
Silica, <1% quartz

2,500mg/m3(as Ta)

2600/2700N95

Tellurium* & Compounds, 			
EZ22/EZ23N95 0.1mg/m3 (o)(t)*25mg/m3
Dusts & Mists (Except Hexafluoride) (as Te)
N
2200/2300N95			
water-based mists*13494-80-9			2600/2700N95*Except Hydrogen
Telluride

Terphenylso-Terphenyl; m-Terphenyl; 		
EZ22/EZ23N95 5mg/m3 (c)(t)500mg/m3(O,M,P Isomers)
p-Terphenyl; Mixed Terphenyls;N
2200/2300N95 9mg/m3 (c)(o)		
26140-60-3Diphenyl Benzenes		
2600/2700N95			
84-15-1						92-06-8
92-94-4

OV+ particulate
filter may besuggested if heatis involved{

1,1,2,2-Tetrabromoethane
79-27-6}

Acetylene tetrabromide, Muthmann’s
OV/P
7100+7940
0.1ppm (t)8ppm
liquid, tetrabromoethane, 		
8100+8940
1ppm (o)		
Tetrabromoethylene					1,1,2,2 Tetrachloroethane		
OV
7100
1ppm (t)79-34-5			
8100
5ppm (o)				 -skin-

100ppmTetrachloroethylene
perchlorethylene,
FF-OV
9001/2/3+
127-18-4
perchloroethylene, perk		
7100
				
				
				
				

25ppm (t)150ppm100ppm (s)(t)		
100ppm (o)200ppm (c)(o)300ppm 5 min peakin any 3 hrs

Tetrachloronapthelene
Halowax®, Nibren wax, Seekay wax
OV/N
7100+8910
1335-88-2			8100+8910

2mg/m3 (o)(t)-skin-

Use 8940 or 7940 whenparticulate is present
t-A3

Substance for which
ACGIH BEI exists; t-A3

50mg/m3

Tetraethyl Lead as Pb
Lead tetraethyl, TEL,
OV
7100/8100
0.1mg/m3 (t)78-00-2
Tetraethylplumbane			 0.075mg/m3 (o)				-skin-

40 mg/m3(as Pb)Tetramethyl Lead
Lead tetramethyl,
OV
7100/8100
0.15mg/m3(t)75-74-1
Tetramethylplumbane, TML			
0.075mg/m3(o)				 -skin-

40 mg/m3(as Pb)				

Tetrahydrofuran
Diethylene oxide; 1,4-Epoxybutane;
OV
7100
109-99-9
Tetramethylene oxide; THF		
8100
				

2,000ppm
t-A3(10% lower				
explosion limit)

50ppm (t);100ppm (s)(t)200ppm (o)Tetranitromethane
Tetan, TNM
OV
7100/8100
0.005ppm(t)509-14-8				 1ppm(o)Tetryl479-45-8

N-Methyl-N,2,4,6-tetranitroaniline;		
Nitramine; 2,4,6-Tetryl;N
2,4,6-Trinitrophenyl-N-methylnitramine 		

4 ppm

EZ22/EZ23N95 1.5mg/m3 (o)(t);2200/2300N95 -skin2600/2700N95

t-A4

t-A3

750mg/m3

Thallium*, Elemental and 		N
Soluble Compounds (as Ti) 		
*7440-28-0			

EZ22/EZ23N95 0.1mg/m3 (o);15mg/m3 (as Ti)
2200/2300N95 0.02mg/m3 (t)*		
2600/2700N95 -skin-*Measured as inhalable
fraction and vapors		

4, 41-Thiobis
4,41 -Thiobis (3-Methyl-6-TertN(6 Tert-Butyl-m-Cresol)
Butylphenol)		
96-69-5			

EZ22/EZ23N95 1mg/m3 (t)*;N.D.
2200/2300N95 15mg/m3 (o) Total dust; 		
2600/2700N95 Respirable fraction 5mg/m3 (o)t-A4; *Measured asinhalable fraction of
the aerosolThionyl Chloride
7719-09-7

Sulfinyl chloride, Sulfur chloride
FF-OV
oxide, Sulfurous dichloride,		Sulfurous oxychloride, Thionyl dichloride

9001/2/3+
7100

Thiram		OV/NRP100 7100+7940
137-26-8			
8100+8940
				0.2ppm(c)(t)N.D.

5mg/m3 (o);100mg/m3
0.05mg/m3 (t)*		
DSEN		Tin Oxide 		N
EZ22/EZ23N95 2mg/m3 (o)*100mg/m3
Tin, and Metal Oxides 			
2200/2300N95 2mg/m3 (t)(as Sn) except(as Sn), Dusts & Mists			
2600/2700N95		 water-based mists for Tin (II) and				
Tin (IV)						{}tA-4;
*Measured as inhalable
fraction and vapors*Inorganic compound
except oxides*Measued as inhalable
fraction of the aerosol
except Indium oxide25		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)Tin, Organic 		
OV/N
7100+8910
0.1mg/m3 (o)(t);Compounds (as Sn)			
8100+8910
0.2mg/m3 (s)(t);7440-31-5				 -skinTitanium Dioxide
Rutile, Titanium oxide,N13463-67-7
Titanium peroxide		
			

IDLH

Comments

25mg/m3

t-A4

EZ22/EZ23N95 10mg/m3 (t)5000mg/m3
2200/2300N95 15mg/m3 (o)*		
2600/2700N95			

Toluene
Methyl benzene, Methyl benzol,
OV
7100
108-88-3
Phenyl methane, Toluol		
8100
				
				
				
				

20ppm (t);500ppm200ppm (o); 		
300ppm (c)(o); 		
[500ppm 10 min 		
peak per 8 hr
shift (c)(o)]*Total dust, t-A4;

t-A4
substance for which an
ACGIH BEI exists
ACGIH NIC to OTO

m-Toluidine
108-44-1

3-Amino-1-Methylbenzene,
FF-OV
9001/2/3+
2ppm(t)N.D.
3-Methylaniline,		
7100-skin-		
3-Methylbenzenamine,					3-Toluidine, Meta-Toluidine,
1-Aminophenyl Methane;
m-Aminotoluene; m-Tolylamine

t-A4
Substance for which
ACGIH BEI exists

o-Toluidine
95-53-4o-Aminotoluene, 2-Aminotoluene,
FF-OV
9001/2/3+
1-Methyl-2-aminobenzene,		
7100
o-Methylaniline, 2-Methylaniline,			ortho-Toluidine, o-Tolylamine

t-A3
Substance for which
ACGIH BEI exists

p-Toluidine
106-49-0

4-Aminotoluene, 4-Methylaniline,
FF-OV
9001/2/3+
2ppm (t)N.D.
4-Methylbenzenamine, 4-Toluidine,		
7100-skin-		
para-Toluidine, p-Tolylamine					2ppm (t)50 ppm5ppm (o) 		
-skin-

t-A3
Substance for which
ACGIH BEI exists

Butyl phosphate, TBP,
OV/RP
7100+
5mg/m3 (o)(t)*30ppm
Tributyl ester of phosphoric acid,		
8970/7940			
Tri-n-butyl phosphate		
8100+						8970/8940														
						

*Measured as
respirable fraction
and vapor; Substancefor which an ACGIH(Acetylcholinesterase
Inhibiting Pesticide) 		
BEI exists; t-A3

Trichloroacetic Acid
TCA, Trichloroethanoic acid
OV/AG
7300
76-03-9			8300

0.5ppm (t)N.D.

t-A3		

unsym-Trichlorobenzene;
OV
7100
1,2,4-Trichlorobenzol		8100

5ppm (c)(t)N.D.				Tributyl Phosphate126-73-8

1,2,4-Trichlorobenzene
120-82-1

1,1,2-Trichloroethane
Ethane trichloride, b-Trichloride,
FF-OV
9001/2/3+
79-00-5
Vinyl trichloride		
7100
				

10ppm(t)100 ppm
t-A3
10ppm (o)-skin-				

Trichloroethylene
Ethylene trichloride, TCE,
OV
7100
79-01-6
Trichloroethene, Trilene		
8100
				
				
				

10ppm (t); 100ppm (o); 1000ppm
substance for which an
200ppm (c)(o)		
ACGIH BEI exists;		
[300ppm 5 min		
t-A2			peak in any 2 hrs]					25ppm (c)(t)		Trichloronapthalene
Hallowax; Seekay Wax; Nibren Wax
OV/N1321-65-9			

7100+8910
8100+8910

5mg/m3 (o)(t);20mg/m3-skin-		

Use 8940 whenparticulate is present

1,2,3-Trichloropropane
96-18-4Allyl trichloride, Glycerol
FF-OV
trichlorohydrin, Glyceryl		
trichlorohydrin, Trichlorohydrin

9001/2/3+
7100.005ppm (t)50ppm (o)100ppmt-A2

Tridymite(See Silica Crystalline)
0.5ppm (t)200ppm1ppm (s)(t)		
25ppm (o)		
-skin-

t-4A

Triethylamine
TEA
FF-OV
9001/2/3+
121-44-8			7100
				
				
Trimellitic Anhydride
TMA
OV/N
7100+8910
552-30-7			
8100+8910
				

0.0005mg/m3 (t)*		
*Measured as 		
0.002mg/m3 (c)(t)*		
inhalable fraction-skin-		
and vapors						-DSEN-						 -RSEN-		
Trimethylamine
75-50-3

N,N-Dimethylmethanamine; TMA
FF-AM[Note: May be used in an aqueous		
solution(typically 25%, 30%, or
40% TMA.)]

Trimethyl Benzene*
Mesitylene; Pseudocumene;
OV/P100
95-63-6; 108-67-8;
Hemimellitene		
526-73-8		

26

9001/2/3+
7400/7600

5ppm (t)15ppm (c)(t)N.D.

7100+7940
25*ppm (t)		
8100+8940			

*All isomers andmixed isomers

		Chemical – CAS#
Synonyms
Trimethylphosphite
121-45-9FilterType

MoldexSuggested

Methyl phosphite, Trimethoxyphosphine, FF-OV
Trimethyl ester of phosphorous acid		

9001/2/3+
7100

TLV(t) PEL(o)IDLH2ppm (t)N.D.

Comments

2,4,6-Trinitrophenol(See Picric Acid)					88-89-1					

			2,4,6,(See Tetryl)					TrinitrophenylmethylNitramine									479-45-8
2,4,6-Trinitrotoluene
118-96-7

1-Methyl-2,4,6-trinitrobenzene;
OV/N
7100+8910
0.1mg/m3 (t);500mg/m3
TNT; Trinitrotoluene;		
8100+8910
1.5mg/m3 (o)		
sym-Trinitrotoluene; Trinitrotoluol			
-skin-								
						
						
						

Substance for whichan ACGIH BEI(Methemoglobin		
inducer) exists.
ACGIH NIC measured
as inhalable fraction
and vapor

Triorthocresyl Phosphate o-Tritolyl Phosphate; TCP;
R/P
2740R95
0.1mg/m3 (o);40mg/m3
78-30-8
TOCP; Tricresylphosphate		
7940/7990
0.013ppm(t)*		
			
4300P95-skin-					
2360P100			
			
4400P100						
8970/8940			
			8990

Substance for whichas ACGIH BEI exists(Acetylcholinesterase		
Inhibiting Pesticide).
*Measured as inhalable
fraction and vapor

Triphenyl Phosphate
Phenyl phosphate; TPP;N
115-86-6
Triphenyl ester of phosphoric acid					

t-A4, use 8100,
or 7100 and 8910		
if heat is involved

Tripoli(See Silica-Crystalline)					Tungsten*Tungsten metal, Wolfram
N
In the absence of cobalt			
*7440-33-7			
Turpentine
8006-64-2

EZ22/EZ23N95 3mg/m3
1,000mg/m3
2200/2300N95			
2600/2700N95			

EZ22/EZ23N95 3mg/m3 (t);*N.D.
2200/2300N95 		
2600/2700N95			

*Measured as the
respirable fraction		and the aerosol

Gumspirits, Gum turpentine, Spirits
FF-OV
9001/2/3+
100ppm (o)800ppmof turpentine, Steam distelled 		
7100
20ppm (t)		
turpentine, Sulfate wood turpentine,			-DSEN-		
Turps, Wood turpentine					t-A4, add particulate
prefilter if particulate
is present-UUranium (natural*),		
NRP100insoluble compounds (as U)		*7440-61-1			

2730N1000.25mg/m3 (o)2360P1000.2mg/m3 (t);4400P100
0.6mg/m3 (s)(t)8940/8990
			7940P100
			7990P100		

10mg/m3(as U)

t-A1, Refer to 10CFR20
Subpart H			

Uranium (Natural)*,		
AG/P100
7200+7940
0.05mg/m3 (o);10mg/m3
Soluble Compounds (as U)			
8200+8940
0.2mg/m3 (t);(as U)
7440-61-1				 0.6mg/m3 (s)(t)water soluble						
						{}

t-A1, Refer to 10CFR20
Subpart H. Use 8200+
8940 or 7200+7940
when halides
are present-Vn-Valeraldehyde
110-62-3

Amyl aldehyde, Pentanal, Valeral,
FF-OV
Valeraldehyde, Valeric Aldehyde		Vanadium Pentoxide 			Dust (as V2O5)		
N
1314-62-1			

9001/2/3+
7100

50ppm (t)N.D.

EZ22/EZ23N95 0.05mg/m3 (t)35mg/m3 (as V)
t-A3
2200/2300N95 inhalable fraction; 		
3
2600/2700N95 0.5mg/m (c)(o)		Vanadium PentoxideN2310/2315N99 0.05mg/m3 (t)35mg/m3 (as V)
Fume (as V2O5)			 2400/2800N95 inhalable fraction;		
1314-62-1				0.1mg/m3 (c)(o)Vegetable Oil, Mists 		
RP
2740R95/
Total particulates
			
4400P100/8970 15mg/m3 (o);			
7940/7990
Respirable fraction
			
8940/8990
5mg/m3 (o)			4300P95
			2360P100
Vinyl Acetate
108-05-4

t-A3

N.D. 		

1-Acetoxyethylene, Ethenyl acetate,
FF-OV
9001/2/3+
10ppm (t)N.D.
Ethenyl ethanoate, VAC, Vinyl		
7100
15ppm (s)(t)		
acetate monomer, Vinyl ethanoate					t-A3; Add particulate
prefilter if particulate
is present

Vinyl Benzene(See Styrene, Monomer)								100-42-5					Vinyl Cyanide
107-13-1(See Acrylonitrile)								Vinyl Toluene
Ethenylmethylbenzene, Methylstyrene,
FF-OV
9001/2/3+
50ppm (t)400ppm25013-15-4
Tolyethylene		7100
100ppm (s)(t)		
				
100ppm (o)		
						

t-A4
*Add particulate
prefilter if particulate
is present27		Chemical – CAS#
Synonyms

FilterType

MoldexSuggested

TLV(t) PEL(o)IDLHComments-WWarfarin
81-81-2

3-(-Acetonyl)-benzyl-4-hydroxycoumarin; N
4-Hydroxy-3-(3-oxo-1-phenyl butyl)-		
2H-1-benzopyran-2-one; WARF		

EZ22/EZ23N95 0.01mg/m3 (o)(t)*100mg/m3
2200/2300N95 -skin-		
2600/2700N95			

*Measured asinhalable fraction		
of the aerosol

Welding Fumes(See specific compounds)
N2310/2315N99		
(Not Otherwise Classified)			
2400/2800N95
			
Wood Dust, All Varieties 		N
EZ22/EZ23N95 1mg/m3 (t)* 		
Except Western			
2200/2300N95			
Red Cedar			
2600/2700N95			
						
						

*Inhalable fraction,
t-A1 Beech, Oak;t-A2 Birch, Mahogany,
Teak, Walnut; t-A4 allother species.

Wood Dust, Western Red		
N
EZ22/EZ23N95 0.5mg/m3 (t)*N.D.
Inhalable fraction,
Cedar			2200/2300N95 -DSEN-		 t-A4
			
2600/2700N95 -RSEN-		-XXylenes (o-, m-,& p-Isomers)
108-38-3, 106-42-3
95-47-6

1,3-bis(Aminomethyl)benzene;
OV
7100
100ppm (o)(t);900ppm
1,3-Benzenedimethanamine; MXDA;		
8100
150ppm (s)(t)		
m-Phenylenebis(methylamine); 					m-Xylylenediamine					m-Xylene a,a-Diamine
MXDA
OV/N
1477-55-0			

7100+8910
8100+8910

Substance for whichan ACGIH BEI exists,
t-A4

0.1mg/m3 (c)(t);-skin-

Aminodimethylbenzene, Aminoxylene,
OV/N
7100/8910
5ppm (o); 0.5ppm (t);*50ppm
Dimethylaminobenzene, Dimethylaniline, 		
8100/8910-skin-		Xylidine isomers					(e.g., 2,4-Dimethylaniline)											
Xylidine (Mixed Isomers)
1300-73-8

Substance for which
ACGIH BEI (Methemoglobin inducer) exists,
t-A3; *inhalable vapor
and aerosol-YYttrium*, Metal & cpds;
Specific CompoundsN
EZ22/EZ23N95 1mg/m3 (o)(t)500mg/m3
Dusts & Metals (as Y)			
2200/2300N95						*7440-65-5			2600/2700N95-ZZinc Chloride, Fume
Zinc dichloride fumeN7646-85-7			

2310/2315N99 1mg/m3 (o)(t);2400/2800N95 2mg/m3 (s)(t)Zinc Oxide, Dust
Calamine; Chinese White; Zinc WhiteN
EZ22/EZ23N95
1314-13-2			
2200/2300N95
			
2600/2700N95
				
				
				

50mg/m3

Total particulates
500mg/m3
15mg/m3 (o); 		
Respirable fraction		
5mg/m3 (o)		
10mg/m3 (s)(t)*2mg/m3 (t)*Zinc oxide, fume		
N
2310/2315N99 5mg/m3 (o)1314-13-2			2400/2800N95

500mg/m3

Zinc stearate
Synpro stearate;
N
EZ22/EZ23N95
557-05-1
Zinc distearate; Dermatone		
2200/2300N95
			
2600/2700N95
				
				

N.D.

*Total dust

50mg/m3

t-A4

10mg/m3 (t)*,15mg/m3 (o)*;Respirable fraction
5mg/m3 (o)Zirconium* compounds			
EZ22/EZ23N95 5mg/m3 (o)(t);dusts and mists (as Zr)			
2200/2300N95 10mg/m3 (s)(t)*7440-67-7		
N
2600/2700N95 water-based mists
				

{

4 28

*Measured as
respirable fractionof the aerosol.

}

CHANGEOUT SCHEDULES
OSHA 1910.134(d) requires that the employer implement a change schedule for cartridges basedon objective information or data that will ensure cartridges are changed before the end of theirservice life (see OSHA1910.134 for complete text). A cartridge’s useful service life is how longit provides adequate protection from harmful chemicals in the air. The service life of a cartridge
depends on many factors, including environmental conditions, breathing rate, cartridge filtering
capacity and the amount of contaminants in the air.
If you know what the chemical is and how much of it you are exposed to, then you are readyto estimate how long your respirator cartridges will work and apply the safety factor.
You must use some type of objective data to develop a changeout schedule. Options fordetermining a cartridge’s service life include:
1. Conducting experimental tests.
2. Using a mathematical model like the “Advisor Genius” or “Breakthrough Software.”
OSHA has on its website other means of calculating breakthrough times for various chemicals. You
may also wish to consider use of this website in developing your changeout schedules. Be advised that
actual service life can vary considerably from those calculated using these models. These models only
provide rough estimates. Some of the data you will need specific to the Moldex cartridges in order to
use the models on the OSHA website are:•8
 100 has an average of 36.7 grams Organic Vapor Carbon, its height is 1.91 cm, inside
diameter is 7.76 cm.
•8 600 has an adsorbing equivalent of 28 grams Organic Vapor Carbon, its height is 2.08 cm,
inside diameter is 7.76 cm.
•A change out schedule worksheet is provided.
•7 100 has an average of 42.5 grams Organic Vapor Carbon, its height is 2.18 cm, inside
diameter is 7.78 cm.
•7 600 has an absorbing equivalent of 36.0 grams Organic Vapor Carbon, its height is
2.18 cm, inside diameter is 7.78 cm.

CARTRIDGE DETAILSREAD THIS WARNING

These weights were estimated by Assay Technology using methods based on their tests. It issuggested that you use default values provided by OSHA for the other cartridge specific parameters.
Lastly, in order for the OSHA models to be used you may have to provide other pertinent data on thechallenge agent which may be found on the MSDS or from the chemical manufacturer. These models
can be found at http://www.osha.gov/SLTC/etools/respiratory/change_schedule.html. They arecalled “Respirator Change Shedules.”Moldex suggests that you use the OSHA models, or other means provided by OSHA. Moldex always
recommends that you utilize the most conservative (shortest) breakthrough times. Moldex recommends
that you use any of the methods only for the contaminants contained in this guide.

For more detailed information on these methods, refer to OSHA’s website at:https://www.osha.gov/SLTC/etools/respiratory/advisor_genius_nrdl/work_categories.html
https://www.osha.gov/SLTC/etools/respiratory/change_schedule_mathmodel.html
For more information on NIOSH multi-vapor program, refer to website at:
http://www.cdc.gov/niosh/npptl/multivapor/multivapor.html
If you have any questions please feel free to call Moldex Technical Services at +1 (800) 421-0668 and+1 (310) 837-6500, ext. 512/550.
29

8000 CARTRIDGE CHANGESCHEDULE WORKSHEET
Duties / Job Classification:
Location:
Chemical Information (from MSDS or Manufacturer)
Chemical:Exposure Limit:
Maximum Concentration:
Boiling Point:
Molecular Weight:
Liquid Density:
Vapor Pressure:
Molecular Polarization:
Refractive Index:
Worksite Conditions
Maximum Expected Temperature (ºC):
Expected Relative Humidity (%):					*Work Rate: 							 Light
Number of Shifts/Week:
Hours Cartridge Used/Shift:

Moderate

Heavy

8000 Cartridge Data
# of Cartridges: 									 28100 Absorbing Equivalent (grams): 					
36.78100 Cartridge Bed Height (cm): 					
1.918600 Absorbing Equivalent (grams): 					
28.08600 Cartridge Bed Height (cm):						 2.08
8100 & 8600 Bed Diameter (cm): 					
7.76Service Life Estimate:

Basis Used:
Cartridge Change Schedule Every
After Each Shift:
Other:

30

Hours

This form may be used to assist you in developing a changeout schedule when using 8100 or 8600 cartridges forprotection against organic vapors.
Be advised, this is simply a tool to help you collect some of the pertinent data in developing a changeout schedule.
It is your responsibility to ensure the accuracy of the schedules that you develop for each operation and work site.
* Moldex suggests you use a range and use the lowest predicted breakthrough time.

7000/7800/9000 CARTRIDGECHANGE SCHEDULE WORKSHEET(For use with 7000 or 9000 Series Respirators)
Duties / Job Classification:
Location:
Chemical Information (from MSDS or Manufacturer)
Chemical:Exposure Limit:
Maximum Concentration:
Boiling Point:
Molecular Weight:
Liquid Density:
Vapor Pressure:
Molecular Polarization:
Refractive Index:
Worksite Conditions
Maximum Expected Temperature (ºC):
Expected Relative Humidity (%):					*Work Rate: 							 Light
Number of Shifts/Week:
Hours Cartridge Used/Shift:

Moderate

Heavy

7000 Cartridge Data
# of Cartridges: 									 27100 Absorbing Equivalent (grams): 					
42.57100 Cartridge Bed Height (cm): 					
2.187600 Absorbing Equivalent (grams): 					
36.07600 Cartridge Bed Height (cm):						 2.187100 & 7600 Bed Diameter (cm): 					
7.78Service Life Estimate:

Basis Used:
Cartridge Change Schedule Every
After Each Shift:
Other:

Hours

This form may be used to assist you in developing a changeout schedule when using 7100 or 7600 cartridges forprotection against organic vapors.
Be advised, this is simply a tool to help you collect some of the pertinent data in developing a changeout schedule.
It is your responsibility to ensure the accuracy of the schedules that you develop for each operation and work site.
* Moldex suggests you use a range and use the lowest predicted breakthrough time.

31

DO NOT USE AGAINST
Moldex respirators may not be used to protect against the following list of chemicals when concentrations are at or above the
OSHA Permissible Exposure Limit (PEL). In the event that a PEL
is exceeded, we suggest that you consult an Industrial Hygienist orother health and safety professional to determine the appropriate
form of protection against any of these chemicals. This list is not
all inclusive.
–A–

ACETONE CYANOHYDRIN
2-ACETYLAMINOFLUORENE
ADIPONITRILEALDRIN
4-AMINODIPHENYL
3-AMINO-1,2,4-TRIAZOLEAMITROLE
ANTIMONYHYDRIDEARSINE–B–

BENZIDINEBROMOETHANE
BROMOTRIFLUOROMETHANE
BUTANE (ALL ISOMERS)
n-BUTYL GLYCIDYL ETHER (BGE)–C–

CALCIUM CYANIDECAPTAFOLCARBARYLCARBOFURANCARBON DIOXIDECARBON MONOXIDECARBON TETRABROMIDECARBONYL CHLORIDECARBONYL FLUORIDE*CARBONYL SULFIDECHLORDANECHLORDECONE
CHLORINATED CAMPHENE
CHLORINATED DIPHENYL OXIDECHLORINE TRIFLUORIDE
O-CHLOROBENZYLIDENE MALONONITRILE
1-CHLORO-1,1-DIFLUROETHANE
CHLORODIFLUOROMETHANE
CHLOROETHANE
CHLOROETHYLENECHLOROFLUOROMETHANE (FC-31)
bis-CHLOROMETHYL ETHERCHLOROMETHYL METHYL ETHER
p-CHLORONITROBENZENECHLOROPENTAFLUOROETHANE
CHLOROPICRIN
o-CHLOROSTYRENE
2-CHLORO-1,1,1,2-TETRAFLUOROETHANE
CHLOROTRIFLUOROETHYLENECOBALT CARBONYLCOBALT HYDROCARBONYLCYANIDES, as CN
CYANOGENCYANOGEN BROMIDECYANOGEN CHLORIDECYCLOPENTANE

32

CAS #s
75-86-5
53-96-3
111-69-3
309-00-2
92-67-1
61-82-5
61-82-57803-52-3
7784-42-1
92-87-5
74-96-4
75-63-8
75-28-5, 106-97-8
2426-08-6
592-01-8
2425-06-1
63-25-2
1563-66-2
124-38-9630-08-0
558-13-4
75-44-5
353-50-4
463-58-1
57-74-9
143-50-0
8001-35-2		
55720-99-5		
7790-91-2
2698-41-1
75-68-3
75-45-675-00-3
75-01-4
593-70-4
542-88-1
107-30-2
100-00-5
76-15-3
76-06-2
2039-87-4
2837-89-0
79-38-910210-68-1
16842-03-8
420-04-2
460-19-5
506-68-83
506-77-4
287-92-3–D–

DDT (DICHLORODIPHENYL-TRICHLOROETHANE)
DECABORANE
DEMETON
2,4 DIAMINOANISOLE AND SALTS
2,4- DIAMINOTOLUENE
o-DIANSIDINE (3,3’-DIMETHOXYBENZIDENE)& DYES METABOLIZED TO THIS COMPOUNDDIAZOMETHANE
DIBORANE
1,2-DIBROMO-3-CHLOROPROPANE (DBCP)
2-N-DIBUTYLAMINOETHANOLDICHLOROACETYLENE
3,3-DICHLOROBENZIDENE (AND ITS SALTS)
DICHLORODIFLUOROMETHANE (FC-12)
DICHLORODIPHENYL-TRICHLOROETHANEDICHLOROETHYNEDICHLOROFLUOROMETHANE (FC-21)
1,1-DICHLORO-FLUOROETHANEDICHLOROMETHANE
2,2-DICHLOROPROPRIONIC ACID SODIUM SALTDICHLOROTETRAFLUOROETHANE(1,2-DICHLORO-1,1,2,2-TETRAFLUOROETHANE)DICHLORVOS (DDVP)
DIELDRIN
DIESEL EXHAUSTDIETHYLENE OXIDE
1,1-DIFLUOROETHANE
1,1-DIFLUOROETHYLENE
DIFLUOROMETHANE
3-3’-DIMETHYLBENZIDENE
3-3’-DIMETHOXYBENZIDENEDIMETHOXYMETHANEDIMETHYLACETAMIDE
N,N-DIMETHYLACETAMIDE
4-DIMETHYLAMINOAZOBENZENEbis-(2-DIMETHYLAMINOETHYL) ETHERDIMETHYLAMINOPROPIONITRILEDIMETHYL CARBAMOYL CHLORIDEDIMETHYL ETHERDIMETHYLETHOXYSILANEDIMETHYL FORMAMIDE
N,N DIMETHYLNITROSOAMINEDIMETHYL SULFATE
4,4-DIPHENYLMETHANE DIISOCYANATEDIPROPYLENE GLYCOL METHYL ETHERDIVINYL BENZENE–E–

ENFLURANE
EPN
ETHANEETHYLAMINEETHYL BROMIDEETHYL CHLORIDEETHYLENEETHYLENE GLYCOL DINITRATEETHYLENEIMINEETHYLENE OXIDEETHYLENE THIOUREA

CAS #s50-29-3
17702-41-98065-48-3
615-05-4
95-80-7
119-90-4
34-88-3
19287-45-7
96-12-8
102-81-8
7572-29-4
91-94-1
75-71-8
50-29-37572-29-4
75-43-4
1717-00-6
75-09-2
127-20-8
76-14-2
62-73-7
60-57-1
N/A
754-12-1
75-37-6
75-38-7
75-10-5
119-93-7
119-90-4
109-87-5
127-19-5
127-19-5
60-11-73033-62-3
1738-25-6
79-44-7
115-10-614857-34-2
68-12-2
62-75-9
77-78-1
101-68-834590-94-8
1321-74-013838-16-9
2104-64-5
74-84-0
75-04-7
74-96-4
75-00-3
74-85-1
628-96-6
151-56-4
75-21-8
96-45-7

DO NOT USE AGAINST (Continued)
CAS #s–F–

FLUORINE
FLUOROETHENE
FLUOROETHYLENE
FLUOROTRICHLOROMETHANE
FORMIC ACID, METHYL ESTERFORMIC ACID–G–GERMANIUM TETRAHYDRIDEGLYCOLONITRILEGLYOXOL–H–

HEPTACHLORHEXAFLUOROACETONEHEXAFLUOROPROPANEHEXAFLUOROPROPYLENEHEXAMETHYLENE DIISOCYANATEHEXAMETHYL PHOSPHORAMIDE
1,1,1,3,3,3, - HEXAFLUORO -2- PROPANONEHYDROGEN CYANIDEHYDROGEN PEROXIDEHYDROGEN SELENIDE– I–

IODINEIODOFORM
IRON PENTACARBONYLISOBUTANE
ISOCYANATESISOPHORONE DIISOCYANATE–K–KEPONEKETENE–L–

L.P.G (LIQUIFIED PETROLEUM GAS)–M–

MALONALDEHYDE
MALONONITRILEMANGANESE CYCLOPENTADIENYL TRICARBONYLMERCURY COMPOUNDS (AS HG)
MERCURY VAPORMERCURIC CHLORIDEMETHANEMETHANOLMETHOXYACETIC ACIDMETHOXYCHLOR
1-METHOXYPROPYL-2-ACETATE
2-(METHOXYMETHYL ETHOXY)-PROPANOLMETHYL ACETYLENE
METHYL ACETYLENE PROPADIENE MIXTURE (MAPP)
METHYL ACRYLONITRILEMETHYLALMETHYLACETALDEHYDEMETHYL ALCOHOL
n-METHYL ANILINEMETHYL BROMIDEMETHYL CHLORIDEMETHYLCYCLOHEXANOLMETHYLCYCLOHEXANONEMETHYLENE BISPHENYL ISOCYANATEMETHYLENE CHLORIDE
4,4-METHYLENE bis (2-CHLOROANILINE)
METHYLENE bis (4-CYCLOHEXYLISOCYANATE)
METHYL FORMATEMETHYL IODIDEMETHYL ISOCYANATEMETHYL PROPANE
2-METHYL PROPANE
N METHYL-2-PYROLIDINEN METHYL SILICATE

7782-41-4
75-02-5
75-02-5
75-69-4
107-31-3
64-18-67782-65-2
107-16-4
107-22-2
76-44-8684-16-2
690-39-1
116-15-4
822-06-0
680-31-9
684-16-2
74-90-87722-84-1
7783-07-5

CAS #sMEVINPHOS
METHYLCHLORO METHYL ETHERMONOFLUOROETHYLENEMONOMETHYL ANILINEN METHYLANILINE–N–

NAPHTHALENE DIISOCYANATE (NDI)
1,5-NAPHTHALENE DIISOCYANATENIAX CATALYST ESNNICKEL CARBONYLNITRIC ACIDNITRIC OXIDE
4-NITROBIPHENYL (4-NITRODIPHENYL)
p-NITROCHLOROBENZENENITROGEN DIOXIDENITROGEN TRIFLUORIDENITROGLYCERIN
2-NITRONAPHTHALENE
n-NITROSODIMETHYLAMINENITROUS OXIDE
o,m,p NITROTOLUENE–O–
553-56-2
75-47-813463-40-6
75-28-5
71000-82-3
4098-71-9
143-50-0
463-51-4
68476-85-7
542-78-9
109-77-3
12079-65-1
7439-97-6
7487-94-7
74-82-8
67-56-1
625-45-6
72-43-5
108-65-634590-94-8
74-99-759355-75-8
126-98-7
109-87-5
123-38-6
67-56-1
100-61-8
74-83-974-87-3
25639-42-3
583-60-8
101-68-8
75-09-2
101-14-4
5124-30-1
107-31-3
74-88-4
624-83-9
75-28-5
75-28-5
872-50-4
681-84-5

OSMIUM TETROXIDEOXYGEN DIFLUORIDE
OZONE

–P–

PENTABORANE
1,1,1,2,2-PENTAFLUOROETHANE
1,1,1,3,3-PENTAFLUOROPROPANEPERCHLORYL FLUORIDEPERFLUOROISOBUTYLENEPETROLEUM GASPHENYL GLYCIDYL ETHERPHENYLHYDRAZINE
N-PHENYL-B-NAPHTHYLAMINE
PHOSDRIN
PHOSGENE
PHOSPHINE
PHOSPHOROUS (YELLOW)PHOSPHOROUS OXYCHLORIDE
PHOSPHOROUS PENTACHLORIDEPOTASSIUM CYANIDEPROPANE
PROPANE SULTONE
b-PROPIOLACTONEPROPIONALDEHYDE
PROPYLALDEHYDE
PROPYLENEPROPYNE–S–

SELENIUM HEXAFLUORIDESILANESEVIN
SILICON TETRAHYDRIDE
SODIUM AZIDESODIUM CYANIDESTIBINESUBTILISINSSUCCINONITRILESULFOTEPP
SULFUR HEXAFLUORIDE
SULFURYL FLUORIDESYSTOX

7786-34-7
107-30-2
75-02-5
100-61-8
100-61-8
3173-72-6
3173-72-6
62765-93-913463-39-3
7697-37-2
10102-43-9
92-93-3
100-00-5
10102-44-0
7783-54-2
55-63-0581-89-5
62-75-910024-97-2
99-08-1
88-72-2
99-99-020816-12-0
7783-41-7
10028-15-6
19624-22-7
354-33-6
460-73-1
7616-94-6
382-21-868476-85-7
122-60-1
100-63-0
135-88-6
7786-34-7
75-44-57803-51-2
7723-14-0
10025-87-3
10026-13-8
151-50-8
74-98-61120-71-4
57-57-8
123-38-6
123-38-6
115-07-1
74-99-77783-79-1
7803-62-5
63-25-27803-62-5
26628-22-8
143-33-9
7803-52-3
1395-21-7
110-61-2
3689-24-5
2551-62-4
2699-79-8
8065-48-3

33

DO NOT USE AGAINST (Continued)
CAS #s–T–

TEDP
3689-24-5
TELLURIUM HEXAFLUORIDE
7783-80-4
TEPP
107-49-3
2,3,7,8-TETRACHLORODIBENXO-p-DIOXIN (TCDD)
1746-01-6
1,1,1,2-TETRACHLORO-2,2-DIFLUOROETHANE
76-11-9
1,1,2,2-TETRACHLORO-1,2-DIFLUOROETHANE
76-12-0
TETRAETHYL PYROPHOSPHATE (TEPP)
107-49-3
1,1,1,2-TETRAFLUOROETHANE
811-97-2
2,3,3,3-TETRAFLUOROPROPENE
754-12-1
TETRAFLUOROETHYLENE
116-14-3
TETRAMETHYLENE
754-12-1
TETRAMETHYLSUCCINONITRILE
3333-52-6
THIOGLYCOLIC ACID
68-11-1o-TOLIDINE
119-93-7
o-TOLIDINE-BASED DYESTOLUENE 2,4-DIAMINE
25376-45-8, 95-80-7
TOLUENE 2,4-DIISOCYANATE (TDI)
584-84-9
TOLUENE 2,6-DIISOCYANATE
91-08-7
TOXAPHENE
8001-35-2
1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE
76-13-1
TRICHLOROFLUOROMETHANE
75-69-4
TRIETHOXYSILANE
998-30-1
1,1,1-TRIFLUORO-2,2-DICHLOROETHANE
306-83-2
TRIETHANOLAMINE
102-71-6
TRIFLUOROBROMOMETHANE
75-63-8
1,1,1-TRIFLUOROETHANE
420-46-2
2,2,2-TRIFLUOROETHANOL
75-89-8–V–

VINYL BROMIDEVINYL CHLORIDEVINYLCYCLOHEXENE DIOXIDEVINYLFLUORIDEVINYLIDENE FLUORIDE

34

593-60-2
75-01-4
106-87-6
75-02-5
75-38-7

CAS #sNOTES35

5

TECHNICAL HELP LINE
For information, technical assistance, and training materials call
+1 (800) 421-0668 or +1 (310) 837-6500, ext. 512.
The information in the 2021 Moldex Chemical Selection Guideis dated and was accurate to the best of Moldex’s knowledge as ofJanuary 2021. This 2021 Guide supercedes all previous Guides,
including printed and electronic versions. If you have an electronic
version other than the 2021 Guide please delete it from yourcomputer. The 2021 Guide can be accessed online atwww.moldex.com.
Before selecting Moldex respirators for use, it is important that you
refer to the most recent Guide available. If you have any questions
on how to use this guide or on the selection and use of any respiratory
protection device, call the Moldex Technical Services Department
at +1 (800) 421-0668, +1 (310) 837-6500, ext. 512 or
tech@moldex.com. Products listed in this Guide are subject to thislimited warranty.

LIMITED WARRANTY IMPORTANT NOTICE TO PURCHASERThis limited warranty is made in lieu of the warranties ofmerchantability, fitness for particular purposes and all otherwarranties, express or implied. There are no other warranties
which extend beyond the description on the face hereof. The physicalstandards and specifications of Moldex will be met by products sold.
Exclusive Remedies: damages for the breach of this limited warranty
are limited to the replacement of such quantity of Moldex products
proved to be defectively manufactured. Except as provided above,
Moldex shall not be liable or responsible for any loss, damage, or
liability, direct, indirect, incidental, special, or consequential, arisingout of sale, use, or misuse, or the inability to use products by the user.

MOLDEX-METRIC INC.
10111 Jefferson Boulevard
Culver City, California 90232+1 (800) 421-0668 or +1 (310) 837-6500
Fax +1 (310) 837-9563
www.moldex.com E-mail: sales@moldex.com
8000-715 REV AE 09/20