Respirator Selection Guide - Bullard

Respirator 

Selection Guide

Introduction 

This guide contains a listing of approximately 800 hazardous 

chemicals found in the work environment. For each chemical, 

occupational exposure limits are presented along with the type of 

filter/cartridge, if appropriate, that is recommended for protection 

against that chemical. Airline configuration (SAR) is indicated in 

those instances where filters/cartridges are inappropriate. 

These recommendations are based on laboratory tests, field tests 

and information from related literature. This listing is designed as 

a guide to the selection of the proper respirator. It is the user’s 

responsibility to evaluate the substance’s physical properties such 

as eye irritation, skin absorption, environmental conditions such 

as volatility, concentration of the chemical compound and ambient 

temperature/relative humidity. 

Bullard PAPRs may not be used for respiratory protection in 

any atmosphere that is immediately dangerous to life or health 

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Respirator Selection Guide 

(IDLH) or in atmospheres containing less than 19.5% oxygen 

(oxygen deficient atmospheres). Do not use Bullard PAPRs for 

fire fighting. 

A complete respirator program must be implemented by the 

user as specified in 29 CFR 1910.134 (Occupational Safety and 

Health Administration regulations). As a minimum, a respiratory 

protection program should include regular training, periodic 

monitoring of airborne concentration levels of contaminants, 

medical evaluation, selection and use of respirators, fit-testing 

of respirators, breathing air quality, maintenance, inspection, 

cleaning and storage. The selection of the actual respirator 

to be used from among the acceptable types and classes will 

depend on the particular use situation and should only be made by a 

person who is knowledgeable in the area of respiratory protection.

How to Use the Guide 

Chemicals are listed alphabetically and by CAS number. The listing 

shows physical data such as normal state, boiling point, melting 

point, flash point, etc. In addition, the OSHA Permissible Exposure 

Limit and the American Conference of Governmental Industrial 

Hygienist’s Threshold Limit Values are shown. 

For each chemical listed, an air-purifying filter or cartridge type 

for the PAPR is given, or the notation “Use airline” is indicated. 

See the following chart to find the part numbers for each type of 

filter or cartridge, as well as the NIOSH color code. 

If the chemical in question cannot be found on the list, e-mail 

the chemical name and any other available information to 

resptech@bullard.com. You may also fax this information to 

Bullard at (859) 234-8987. 

To determine the maximum use concentration of the cartridges/ 

filters listed, when used with any headpiece, follow these steps: 

1. Find the APF of the type of headpiece that will be used. See 

the chart on right. 



Headpiece APF 

Loose Fitting Facepiece 25 

Half Mask 50 

Full Facepiece 1000 

Hood 25/1000 

2. Multiply the APF by the PEL or TLV for the chemical in question. 

For example: Tricholoroethylene – Use PAPRFC2 cartridge. PEL 

= 100 ppm. IDLH = 1,000 ppm. Selected Tychem Hood. APF for 

Tychem Hood = 1000. 

3. Multiply APF of 1000 for Tychem Hood times PEL of 100 ppm, 

equals 100,000 ppm. 

4. Compare result to IDLH concentration. The Maximum Use 

Concentration will equal whichever is lower, which in this case 

is 1,000 ppm. (Cannot exceed IDLH concentration).

NIOSH Color Code for Filters and Cartridges 



Part Number PAPR(s) Type/Description NIOSH Color Code 

PAPRFC1 PA30, PA30IS HE (High Efficiency) Purple 

PAPRFC2 PA30, PA30IS OV/AG/HE (Organic Vapors/Acid Gas/High Efficiency) Yellow/Purple 

PAPRFC3 EVA, EVAHL HE (High Efficiency) Purple 

PAPRFC4 EVA, EVAHL OV/AG/HE (Organic Vapors/Acid Gas/High Efficiency) Yellow/Purple 

PA3NBC PA30, PA30IS AG/AM/MA/FM/HE (Acid Gas/Ammonia/Methlyamine/Formaldehyde/ 

High Efficiency) 

Olive/Purple

Abbreviations 

IDLH = Immediately dangerous to Life or Health. This means a 

concentration level of a given substance which poses an immediate 

threat to life or health. If the concentration is above the IDLH, only 

highly reliable Self-Contained Breathing Apparatus is allowed. 

Mg/m3 = Milligrams per cubic meter of air. 

PEL = OSHA Permissible Exposure Limit. Defined as the time-weighted 

average concentration for a normal 8-hour workday and 40-hour 

workweek, to which nearly all workers may be repeatedly exposed, 

day after day, without adverse affect. 

ppm = parts per million parts of air. 

Skin = Listed substances followed by “skin” refer to the potential 

significant contribution to the overall exposure by the cutaneous 

route, including mucous membranes and the eyes, either by contact 

with vapors or by direct skin contact. Measures to prevent significant 

cutaneous absorption may be required. 

TLV = Threshold limit value (American Conference of Governmental 

Industrial Hygienist). See definition of PEL. 



WARNING 

1. This device does not supply oxygen. 

2. Use only in adequately ventilated areas containing at least 19.5% oxygen. 

3. Do not use when concentrations of contaminants are immediately dangerous to 

life or health (IDLH). 

4. Do not use these respirators for respiratory protection against abrasive blasting 

using silica sand as the abrasive. 

5. Do not use in circumstances where the airborne concentration level of contaminant 

exceeds maximum use concentration for this type of respirator as established by 

regulatory standards. 

6. Leave area immediately if: 

a. Breathing becomes difficult 

b. Dizziness or other distress occurs. 

c. You taste or smell the contaminant. 

d. Unit becomes damaged. 

7. Do not use any full facepiece when conditions prevent a good facial seal, such 

as facial hair that comes between the sealing surface of the facepiece and the 

face or that interferes with valve function. 

8. Use strictly in accordance with instructions, labels and limitations pertaining 

to this device. 

9. Never alter or modify this device. Use only NIOSH approved Bullard components 

and replacement parts for this respirator.

Chemical Name CAS No. 

8 Hour TWA Irritant PAPR Filter/Cartridge 

Unit of 

Measure PEL TLV IDLH Eye Skin PA30/PA30IS EVA/EVAHL SAR Comments 

ACETALDEHYDE 75-07-0 ppm 200 C 25 10,000 yes no NA NA Short OV service life 

ACETIC ACID 64-19-7 ppm 10 10 1,000 yes no PAPRFC2 PAPRFC4 

ACETIC ANHYDRIDE 108-24-7 ppm 5 1 1,000 yes no PAPRFC2 PAPRFC4 

ACETONE 67-64-1 ppm 1,000 500 20,000 yes no PAPRFC2 PAPRFC4 

ACETONITRILE 75-05-8 ppm 40 20 4,000 yes no PAPRFC2 PAPRFC4 Poor warning 

2-ACETYLAMINOFLUORENE 53-96-3 mg/m3 CA CA yes yes NA NA See OSHA 1910.1014 

ACETYLENE 74-86-2 ppm no no NA NA 

ACETYLENE TETRABROMIDE 79-27-6 ppm 1 1 8 yes yes PAPRFC2 PAPRFC4 

ACETYLSALICYLIC ACID 50-78-2 mg/m3 5 no no PAPRFC1 PAPRFC3 

ACROLEIN 107-02-8 ppm 0.1 C0.1 2 no no PAPRFC2 PAPRFC4 Poor warning 

ACRYLALDEHYDE 107-02-8 ppm 0.1 C0.1 2 no no PAPRFC2 PAPRFC4 Poor warning 

ACRYLAMIDE 79-06-1 mg/m3 0.3 0.03 yes yes PAPRFC2 PAPRFC4 

ACRYLIC ACID 79-10-7 ppm 2 no no PAPRFC2 PAPRFC4 

ACRYLONITRILE 107-13-1 ppm 2 2 no yes NA NA 

ALDRIN (ISO) 309-00-2 mg/m3 0.25 0.05 no yes PAPRFC2 PAPRFC4 

ALLYL ALCOHOL 107-18-6 ppm 2 0.5 20 no yes PAPRFC2 PAPRFC4 

ALLYL CHLORIDE 107-05-1 ppm 1 1 250 yes no PAPRFC2 PAPRFC4 

ALLYL GLYCIDYL ETHER 106-92-3 ppm C10 1 50 no yes PAPRFC2 PAPRFC4 

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ALPHA-CHLOROTOLUENE 

(BENZYL CHLORIDE) 


Unit of 


98-88-4 ppm 1 1 10 no no 

PAPRFC2 

PA3NBC 

PAPRFC4 

ALUMINUM METAL 7429-90-5 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 

ALUMINUM OXIDE mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 

ALUMINIUM SALTS, SOLUBLE mg/m3 2 no no PAPRFC1 PAPRFC3 

4-AMINOBIPHENYL 92-67-1 CA CA yes NA NA 

AMINODIMETHYLBENZENE 1300-73-8 ppm 5 0.5 50 no yes PAPRFC2 PAPRFC4 AKA Xylidine 

2-AMINOETHANOL 141-43-5 ppm 3 3 30 yes no PAPRFC2 PAPRFC4 AKA Ethanolamine 

2-AMINOPYRIDINE 504-29-0 mg/m3 0.5 0.5 5 no no PAPRFC2 PAPRFC4 

AMMONIA 7664-41-7 ppm 50 25 300 yes no PA3NBC NA 

AMMONIUM CHLORIDE, FUME 12125-02-9 mg/m3 10 no no PA3NBC NA 

AMMONIUM SULFAMATE 7773-06-0 mg/m3 R 5 10 1,500 no no PAPRFC1 PAPRFC3 

n-AMYL ACETATE 628-63-7 ppm 100 50 1,000 no no PAPRFC2 PAPRFC4 

sec-AMYL ACETATE 626-38-0 ppm 125 50 1,000 no no PAPRFC2 PAPRFC4 

ANILINE 62-53-3 ppm 5 2 100 CA no yes PAPRFC2 PAPRFC4 

ANISIDINES, O- AND P-ISOMERS 

90-04-0 

104-94-9 

ppm 0.5 0.5 50 no yes PAPRFC2 PAPRFC4 

ANTIMONY AND COMPOUNDS 

(AS SB) 

7440-36-0 mg/m3 0.5 0.5 50 no no PAPRFC1 PAPRFC3 

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Unit of 


ARGON 7440-37-1 ppm no no NA NA 

ARSENIC & COMPOUNDS 

EXCEPT ARSINE 

7440-38-2 mg/m3 0.01 0.01 5 CA no no PAPRFC1 PAPRFC3 

ARSINE 7784-42-1 ppm 0.05 0.05 3 CA no no NA NA 

Unknown sorbent 

effectiveness 

ASBESTOS 1332-21-4 fibre/ml 0.1 0.1 CA no no PAPRFC1 PAPRFC3 PAPRS must be tight fitting 

ASPHALT, PETROLEUM FUMES 8052-42-4 mg/m3 C 5 0.5 CA no no PAPRFC2 PAPRFC4 

ASPRIN 50-78-2 mg/m3 5 yes yes PAPRFC1 PAPRFC3 Acetylsalicylic Acid 

ATRAZINE (ISO) 1912-24-9 mg/m3 5 no no PAPRFC1 PAPRFC3 

AZINPHOS-METHYL (ISO) 86-50-0 mg/m3 0.2 0.2 10 no yes PAPRFC2 PAPRFC4 

AKA Ethyleneimine - OSHA 

AZIRIDINE 151-56-4 ppm CA 0.5 no yes NA NA 

requires SAR with hood 

for certain applications. 

See 29 CFR 1910.1003 

BCME [Bis (chloromethyl) ETHER] 542-88-1 ppm CA 0.001 no no PAPRFC2 PAPRFC4 

BGE 2426-08-6 ppm 50 25 250 PAPRFC2 PAPRFC4 n-Butylglycidylether 

y-BHC (ISO) 319-86-8 mg/m3 0.5 0.5 50 PAPRFC2 PAPRFC4 

BARIUM COMPOUNDS 

SOLUBLE (AS BA) 

7440-39-3 mg/m3 0.5 0.5 250 no no PAPRFC1 PAPRFC3 

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Unit of 


BENOMYL (ISO) 17804-35-2 mg/m3 R 5 10 no no PAPRFC2 PAPRFC4 

BENZENE 71-43-2 ppm 1.00 0.50 500 no yes PAPRFC2 PAPRFC4 

Per 20 CFR 1910.1028 - 

must use SAR if cartridges 

are not replaced at 

beginning of shift 

BENZENETHIOL 108-98-5 ppm no no PAPRFC2 PAPRFC4 

BENZIDINE 92-87-5 CA CA NA NA 

p-BENZOQUINONE 106-51-4 ppm 0.1 0.1 100 yes yes PAPRFC2 PAPRFC4 

BENZOYL PEROXIDE 94-36-0 mg/m3 5 5 1,500 no no PAPRFC2 PAPRFC4 

BERYLLIUM 7440-41-7 mg/m3 0.002 0.00005 4 CA no no PAPRFC1 PAPRFC3 

BIPHENYL ppm 0.2 0.2 100 no no NA NA 

OSHA regulated 

BIS(CHLOROMETHYL) ETHER 542-88-1 ppm CA CA no no NA NA carcinogen. See 29 CFR 

1910.1003 

BIS(2,3-EPOXYPROPYL) ETHER 2238-07-5 mg/m3 0.5 0.01 no no PAPRFC2 PAPRFC4 Diglycidyl 

BIS(2-ETHYLHEXYL) PHTHALATE 117-81-7 mg/m3 5 5 no no PAPRFC2 PAPRFC4 Di-sec Octylphthalate 

BISMUTH TELLURIDE 1304-82-1 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 

BORATES, (Tetra) SODIUM SALTS 1330-43-4 mg/m3 2 no no PAPRFC1 PAPRFC3 

BORON OXIDE 1303-86-2 mg/m3 15 10 2,000 no no PAPRFC1 PAPRFC3 

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Unit of 


BORON TRIBROMIDE 10294-33-4 ppm C 1 no no PAPRFC2, PA3NBC PAPRFC4 

BORON TRIFLUORIDE 7637-07-2 ppm C 1 C 1 25 no no PAPRFC2, PA3NBC PAPRFC4 

BROMACIL (ISO) 314-40-9 mg/m3 10 no no PAPRFC2 PAPRFC4 

BROMINE 7726-95-6 ppm 0.1 0.1 3 yes no PAPRFC2, PA3NBC PAPRFC4 

BROMINE PENTAFLUORIDE 7789-30-2 ppm 0.1 no no PAPRFC2, PA3NBC PAPRFC4 

BROMOCHLOROMETHANE 74-97-5 ppm 200 200 2,000 no no SHORT ON OV SERVICE LIFE 

Methylene Bromochloride 

or Chlorobromo Methane 

BROMOMETHANE 74-83-9 ppm C 20 1 CA 250 yes no NA NA Methyl Bromide 

BROMOETHYLENE 593-60-2 ppm 0.5 no no SHORT ON OV SERVICE LIFE Vinyl Bromide 

BROMOFORM 75-25-2 ppm 0.5 0.5 850 yes yes PAPRFC2 PAPRFC4 Methyl Tribromide 

BROMOTRIFLUOROMETHANE 75-63-8 ppm 1,000 1,000 40,000 no no NA NA Halon 1301 

1,3-BUTADIENE 106-99-0 ppm 1 2 CA 2,000 yes no PAPRFC2 PAPRFC4 

BUTAN-1-OL 71-36-3 ppm 100 20 1,400 yes yes PAPRFC2 PAPRFC4 Butyl Alcohol 

BUTAN-2-OL 78-92-2 ppm 150 100 2,000 no no PAPRFC2 PAPRFC4 See Butyl Alcohol 

BUTAN-2-ONE 78-93-3 ppm 200 200 3,000 yes no PAPRFC2 PAPRFC4 MEK 

BUTANE 106-97-8 ppm 600 1,000 no no NA NA Butyl Hydride 

2-BUTOXYETHANOL 111-76-2 ppm 50 20 700 yes yes PAPRFC2 PAPRFC4 EGBE 

BUTYL ACETATE 123-86-4 ppm 150 150 1,700 yes no PAPRFC2 PAPRFC4 

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Unit of 


SEC-BUTYL ACETATE 105-46-4 ppm 200 200 1,700 no no PAPRFC2 PAPRFC4 

TERT-BUTYL ACETATE 540-88-5 ppm 200 200 1,500 no no PAPRFC2 PAPRFC4 

BUTYL ACRYLATE 141-32-2 ppm 2 yes no PAPRFC2 PAPRFC4 

n-BUTYL ALCOHOL 71-36-3 ppm 100 20 1,400 yes yes PAPRFC2 PAPRFC4 

sec-BUTYL ALCOHOL 78-92-2 ppm 150 100 2,000 no no PAPRFC2 PAPRFC4 

tert-BUTYL ALCOHOL 75-65-0 ppm 100 100 1,600 no no PAPRFC2 PAPRFC4 

N-BUTYLAMINE 109-73-9 ppm 5 C 5 300 no yes PA3NBC NA 

n-BUTYL GLYCIDYL ETHER 2426-08-6 ppm 50 25 250 yes no PAPRFC2 PAPRFC4 

BUTYL LACTATE 138-22-7 ppm 5 no no PAPRFC2 PAPRFC4 

BUTYL MERCAPTAN 109-79-5 ppm 10 0.5 500 yes yes PAPRFC2 PAPRFC4 

2-SEC-BUTYLPHENOL 89-72-5 ppm 5 yes yes PAPRFC2 PAPRFC4 

p-tert-BUTYLTOLUENE 98-51-1 ppm 10 1 100 yes yes PAPRFC2 PAPRFC4 

CADMIUM DUST (AS CD) 7440-43-9 mg/m3 0.005 0.01 no no PAPRFC1 PAPRFC3 

CADMIUM OXIDE FUME (AS CD) 1306-19-0 mg/m3 0.01 0.01 no no PAPRFC1 PAPRFC3 

CALCIUM CARBONATE 471-34-1 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 CAS 1317-65-3 natural 

CALCIUM CYANAMIDE 156-62-7 mg/m3 0.5 yes yes PAPRFC1 PAPRFC3 

CALCIUM HYDROXIDE 1305-62-0 mg/m3 R 5 5 no no PAPRFC1 PAPRFC3 

CALCIUM OXIDE 1305-78-8 mg/m3 5 2 25 yes yes PAPRFC1 PAPRFC3 

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Unit of 


CALCIUM SILICATE 1344-95-2 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 

CAMPHOR , SYNTHETIC 76-22-2 mg/m3 2 2 200 no no PAPRFC2 PAPRFC4 

e-CAPROLACTAM 105-60-2 ppm 5 yes yes PAPRFC2 PAPRFC4 

CAPTAFOL (ISO) 2425-06-1 mg/m3 0.1 yes yes PAPRFC2 PAPRFC4 

CAPTAN (ISO) 133-06-2 mg/m3 5 no no PAPRFC1 PAPRFC3 

CARBARYL (ISO) 63-25-2 mg/m3 5 5 100 no no PAPRFC2 PAPRFC4 

CARBOFURAN (ISO) 1563-66-2 mg/m3 0.1 no no PAPRFC2 PAPRFC4 

CARBON BLACK 1333-86-4 mg/m3 3.5 3.5 1750 yes no PAPRFC1 PAPRFC3 

CARBON DIOXIDE 124-38-9 ppm 5,000 5,000 40,000 no no NA NA 

CARBON DISULFIDE 75-15-0 ppm 20 10 500 no yes PAPRFC2 PAPRFC4 

CARBON MONOXIDE 630-08-0 ppm 50 25 1,200 no no NA NA 

CARBON TETRABROMIDE 558-13-4 ppm 0.1 no no PAPRFC2 PAPRFC4 

CARBON TETRACHLORIDE 56-23-5 ppm 10 5 yes yes PAPRFC2 PAPRFC4 

CARBONYL CHLORIDE 75-44-5 ppm 0.1 0.1 2 no no PAPRFC2, PA3NBC PAPRFC4 

CATECHOL 120-80-9 mg/m3 5 yes yes PAPRFC2 PAPRFC4 

CELLULOSE 9004-34-6 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 

CEMENT 65997-15-1 mg/m3 R 5 10 5,000 yes yes PAPRFC1 PAPRFC3 

CESIUM HYDROXIDE 21351-79-1 mg/m3 2 no no PAPRFC1 PAPRFC3 

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Unit of 


CHLORDANE (ISO) 57-74-9 mg/m3 0.5 0.5 no yes PAPRFC2 PAPRFC4 

CHLORINATED BIPHENYLS 

(42% CHLORINE) 

mg/m3 1 1 yes yes PAPRFC2 PAPRFC4 

CHLORINATED BIPHENYLS 

(54% CHLORINE) 

mg/m3 0.5 0.5 yes yes PAPRFC2 PAPRFC4 

CHLORINE 7782-50-5 ppm 1 0.5 10 yes yes PAPRFC2, PA3NBC PAPRFC4 

CHLORINE DIOXIDE 10049-04-4 ppm 0.1 0.1 5 no no PAPRFC2, PA3NBC PAPRFC4 

CHLORINE TRIFLUORIDE 7790-91-2 ppm 0.1 C 0.1 20 yes no NA NA 

CHLOROACETALDEHYDE 107-20-0 ppm 1 C 1 45 yes yes PAPRFC2 PAPRFC4 

2-CHLOROACETOPHENONE 532-27-4 ppm 0.05 0.05 15 yes no PAPRFC2 PAPRFC4 

1-CHLORO-2,3-EPOXY-PROPANE 106-89-8 ppm 5.00 0.5 yes yes PAPRFC2 PAPRFC4 Epichlorohydrin 

CHLOROACETYL CHLORIDE 79-04-9 ppm 0.05 yes no PAPRFC2 PAPRFC4 

CHLOROBENZENE 108-90-7 ppm 75 10 1,000 no no PAPRFC2 PAPRFC4 

CHLOROBROMOMETHANE 74-97-5 ppm 200 200 2,000 yes no PAPRFC2 PAPRFC4 

2-CHLOROBUTA-1,3-DIENE 126-99-8 ppm 25 10 yes yes PAPRFC2 PAPRFC4 ß-chloroprene 

CHLORODIMETHYL ETHER 107-30-2 CA CA yes NA NA 

CHLORODIFLUOROMETHANE 75-45-6 ppm 1,000 1,000 no no NA NA 

CHLOROETHANE 75-00-3 ppm 1,000 100 3,800 no no NA NA Ethyl Chloride 

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Unit of 


2-CHLOROETHANOL 107-07-3 ppm 5 C 1 7 no yes PAPRFC2 PAPRFC4 Ethylene Chlorohydrin 

CHLOROETHYLENE 75-01-4 ppm 1 1 yes no NA NA Vinyl Chloride 

CHLOROFORM 67-66-3 ppm 50 10 no no PAPRFC2 PAPRFC4 

CHLOROMETHANE 74-87-3 ppm 100 50 no no NA NA Methyl Chloride 

1-CHLORO-4-NITROBENZENE 100-00-5 mg/m3 1 0.1 yes yes PAPRFC2 PAPRFC4 p-Nitrochlorobenzene 

CHLOROPENTAFLUOROETHANE 76-15-3 ppm 1,000 no no NA NA Freon 115 

CHLOROPICRIN 76-06-2 ppm 0.1 0.1 2 yes yes PAPRFC2 PAPRFC4 Nitrochloroform 

b-CHLOROPRENE 126-99-8 ppm 25 10 yes yes PAPRFC2 PAPRFC4 

3-CHLOROPROPENE 107-05-1 ppm 1 1 250 yes no PAPRFC2 PAPRFC4 Allyl Chloride 

2-CHLOROTOLUENE 95-49-8 ppm 50 10 yes yes PAPRFC2 PAPRFC4 o-Chlorotoluene 

2-CHLORO- 

6-(TRICHLOROMETHYL)PYRIDINE 

1929-82-4 mg/m3 R 5 10 yes yes PAPRFC2 PAPRFC4 

CHLORPYRIFOS (ISO) 2921-88-2 mg/m3 0.1 yes yes PAPRFC2 PAPRFC4 

CHROMIUM 7440-47-3 mg/m3 1 0.5 250 no no PAPRFC1 PAPRFC3 

CHROMIUM (II) COMPOUNDS 

(AS CR) 

mg/m3 0.5 0.5 250 no no PAPRFC1 PAPRFC3 

CHROMIUM (III) COMPOUNDS 

(AS CR) 


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Unit of 


CHROMIUM (VI) COMPOUNDS 

(AS CR) 

mg/m3 C 0.1 0.01 no no PAPRFC1 PAPRFC3 

CHROMIUM TRIOXIDE mg/m3 C 0.1 0.05 PAPRFC1 PAPRFC3 

COAL DUST mg/m3 2.4 0.4 no no PAPRFC1 PAPRFC3 

COAL TAR PITCH VOLATILES 65996-93-2 mg/m3 C 0.1 0.01 PAPRFC2 PAPRFC4 

(AS BENZENE SOLUBLES) mg/m3 0.2 0.2 no no PAPRFC2 PAPRFC4 

COBALT AND COMPOUNDS (AS CO) 7440-48-4 mg/m3 0.1 0.02 20 no no PAPRFC1 PAPRFC3 

COPPER, DUSTS AND MISTS 7440-50-8 mg/m3 1 1 100 no no PAPRFC1 PAPRFC3 

COPPER, FUME 1317-38-0 mg/m3 0.2 100 no no PAPRFC1 PAPRFC3 

COTTON DUST mg/m3 0.2 0.2 100 no no PAPRFC1 PAPRFC3 

CRESOLS (ALL ISOMERS) ppm 5 5 250 yes yes PAPRFC2 PAPRFC4 

CRISTOBALITE 14808-60-7 mg/m3 15 0.05 no no PAPRFC1 PAPRFC3 Silica, Crystalline 

CRYOFLUORANE (INN) 76-14-2 ppm 1,000 1,000 15,000 no no NA NA 

Dichlorotetra Fluoroethane, 

Freon 114 

CRYSTALLINE SILICA ( RESPIRABLE) 1408-60-7 mg/m3 15 no no PAPRFC1 PAPRFC3 

CUMENE 98-82-8 ppm 50 50 900 yes yes PAPRFC2 PAPRFC4 

CYANAMIDE 420-04-2 mg/m3 2 yes no PAPRFC1 PAPRFC3 

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Unit of 


CYANIDES, EXCEPT HYDROGEN 

CYANIDE, CYANOGEN & 

CYANOGEN CHLORIDE, (AS -CN) 

mg/m3 5 5 no yes NA NA 

CYANOGEN 460-19-5 ppm 10 no no NA NA 

CYANOGEN CHLORIDE 506-77-4 ppm C 0.3 yes no NA NA 

CYCLOHEXANE 110-82-7 ppm 300 100 1,300 no no PAPRFC2 PAPRFC4 

CYCLOHEXANOL 108-93-0 ppm 50 50 400 no no PAPRFC2 PAPRFC4 

CYCLOHEXANONE 108-94-1 ppm 50 20 700 no yes PAPRFC2 PAPRFC4 

CYCLOHEXENE 110-83-8 ppm 300 300 2,000 no no PAPRFC2 PAPRFC4 

CYCLOHEXYLAMINE 108-91-8 ppm 10 no yes PAPRFC2 PAPRFC4 

CYCLONITE (RDX) 121-82-4 mg/m3 0.5 no yes PAPRFC1 PAPRFC3 

2,4-D (ISO) 94-75-7 mg/m3 10 10 100 no yes PAPRFC1 PAPRFC3 Dichlorophenoxy Acetic Acid 

DGE 2238-07-5 mg/m3 C2.8 0.1 yes yes PAPRFC2 PAPRFC4 Diglycidylether 

DDT 50-29-3 mg/m3 1 1 no no PAPRFC1 PAPRFC3 

DDVP 62-73-7 ppm 1 100 no yes PAPRFC2 PAPRFC4 Dichlorvos 

DMDT 72-43-5 mg/m3 15 10 no no PAPRFC1 PAPRFC3 Methoxychlor 

DIACETONE ALCOHOL 123-42-2 ppm 50 50 1,800 no no PAPRFC2 PAPRFC4 

2,2’-DIAMINODIETHYLAMINE 111-40-0 ppm 1 no yes PAPRFC2 PAPRFC4 Diethylenetriamine 

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Unit of 


4,4’-DIAMINODIPHENYLMETHANE 101-77-9 ppm 0.01 0.1 yes no PAPRFC2 PAPRFC4 

1,2-DIAMINOETHANE 107-15-3 ppm 10 10 1,000 PAPRFC2 PAPRFC4 Ethylenediamine 

DIATOMACEOUS EARTH, 

NATURAL, RESPIRABLE DUST 

7631-86-9 mg/m3 3 3,000 no no PAPRFC1 PAPRFC3 Silica, Amorphous 

DIAZINON (ISO) 333-41-5 mg/m3 0.1 yes yes PAPRFC2 PAPRFC4 

DIAZOMETHANE 334-88-3 ppm 0.2 0.2 2 no no NA NA 

DIBENZOYL PEROXIDE 94-36-0 mg/m3 5 5 1,500 yes yes PAPRFC2 PAPRFC4 

DIBORANE 19287-45-7 ppm 0.1 0.1 15 yes no NA NA Boroethane 

DIBROM 300-76-5 mg/m3 3 3 200 yes yes PAPRFC2 PAPRFC4 

1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 ppm 0.001 yes yes NA NA 

DIBROMODIFLUOROMETHANE 75-61-6 ppm 100 100 2,000 yes yes NA NA 

1,2-DIBROMOETHANE (ETHYLENE 

DIBROMIDE) 

106-93-4 ppm 20 yes yes PAPRFC2 PAPRFC4 Ethylene Dibromide 

DIBUTYL HYDROGEN PHOSPHATE 107-66-4 ppm 1 1 30 yes yes PAPRFC2 PAPRFC4 

DIBUTYL PHTHALATE 84-74-2 mg/m3 5 5 4,000 no no PAPRFC2 PAPRFC4 

DICHLOROACETYLENE 7572-29-4 ppm C 0.1 no no NA NA 

1,2-DICHLOROBENZENE 95-50-1 ppm 50 25 200 yes no PAPRFC2 PAPRFC4 o-Dichlorobenzene 

1,4-DICHLOROBENZENE 106-46-7 mg/m3 75 10 yes no PAPRFC2 PAPRFC4 p-Dichlorobenzene 

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Unit of 


3,3’-DICHLOROBENZIDINE 

AND ITS SALTS 

91-94-1 CA yes yes NA NA 

DICHLORODIFLUOROMETHANE 75-71-8 ppm 1,000 1,000 15,000 no no NA NA 

1,3-DICHLORO-5,5- 

DIMETHYL-HYDANTOIN 

118-52-5 mg/m3 0.2 0.2 5 yes yes PAPRFC2 PAPRFC4 

DICHLORODIPHENYL- 

TRICHLOROETHANE 

50-29-3 mg/m3 1 yes yes PAPRFC1 PAPRFC3 DDT 

1,1-DICHLOROETHANE 75-34-3 ppm 100 100 3,000 yes yes PAPRFC2 PAPRFC4 

1,2-DICHLOROETHANE 

(ETHYLENE DICHLORIDE) 

107-06-2 ppm 50 10 yes yes PAPRFC2 PAPRFC4 Ethylene Dichloride 

1,1-DICHLOROETHYLENE 75-35-4 ppm 5 yes yes PAPRFC2 PAPRFC4 Vinylidene Chloride 

1,2-DICHLOROETHYLENE, 

CIS:TRANS ISOMERS 60:40 

540-59-0 ppm 200 200 1,000 yes yes PAPRFC2 PAPRFC4 

DICHLOROFLUOROMETHANE 75-43-4 ppm 1,000 10 5,000 no no NA NA Freon 21 

DICHLOROMETHANE 75-09-2 ppm 25 50 5,000 yes yes NA NA Methylene Chloride 

2,4-DICHLOROPHENOXYACETIC 

ACID 

95-75-7 mg/m3 10 10 100 no yes PAPRFC1 PAPRFC3 2, 4, D 

1,2-DICHLOROTETRA- 

FLUOROETHANE 

76-14-2 ppm 1,000 1,000 15,000 no no NA NA 

DICHLORVOS (ISO) 62-73-7 mg/m3 1 0.1 100 no yes PAPRFC2 PAPRFC4 

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Unit of 


DICYCLOPENTADIENE 77-73-6 ppm 5 yes no PAPRFC2 PAPRFC4 

DICYCLOPENTADIENYLIRON 102-54-5 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 Ferrocene 

DIELDRIN (ISO) 60-57-1 mg/m3 0.25 0.25 no yes PAPRFC2 PAPRFC4 

DIETHANOLAMINE 111-42-2 mg/m3 2 no no PAPRFC2 PAPRFC4 

DIETHYLAMINE 109-89-7 ppm 25 5 200 no no PAPRFC2, PA3NBC PAPRFC4 

2-DIETHYLAMINOETHANOL 100-37-8 ppm 10 2 100 yes yes PAPRFC2 PAPRFC4 

DIETHYLENEGLYCOL 111-46-6 ppm no no PAPRFC1 PAPRFC3 

DIETHYLENETRIAMINE 111-40-4 ppm 1 no yes PAPRFC2 PAPRFC4 

DIETHYL ETHER 60-29-7 ppm 400 400 1,900 yes no PAPRFC2 PAPRFC4 Ethyl Ether, Diethyloxide 

DI-(2-ETHYLHEXYL) PHTHALATE 117-81-7 mg/m3 5 5 no no PAPRFC1 PAPRFC3 Di-sec Octyl Phthalate 

DIETHYL KETONE 96-22-0 ppm 200 no no PAPRFC2 PAPRFC4 

DIETHYL PHTHALATE 84-66-2 mg/m3 5 no no PAPRFC1 PAPRFC3 

DIFLUOROCHLOROMETHANE 75-46-6 ppm 1,000 1,000 no no NA NA Chlorodifluoromethme 

DIFLUORODIBROMOMETHANE 75-61-6 ppm 100 100 2,000 no no PAPRFC2 PAPRFC4 Freon 12B2, Halon 1202 

DIFLUORODICHLOROMETHANE 75-71-8 ppm 1,000 1,000 15,000 no no NA NA Freon 12, Halon 122 

DIGLYCIDYL ETHER 2238-07-5 ppm C2.8 0.1 no no PAPRFC2 PAPRFC4 

o-DIHYDROXYBENZENE 120-80-9 ppm 5 yes yes PAPRFC2 PAPRFC4 Catechol 

m-DIHYDROXYBENZENE 108-46-3 ppm 10 yes yes PAPRFC2 PAPRFC4 Resorcinol 

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Unit of 


p-DIHYDROXYBENZENE 8027-02-9 mg/m3 2 2 50 yes yes PAPRFC2 PAPRFC4 

1,2-DIHYDROXYETHANE 107-21-1 mg/m3 C 100 yes yes Ethylene Glycol 

DIISOBUTYL KETONE 108-83-8 ppm 50 25 500 yes yes PAPRFC2 PAPRFC4 

DIISOPROPYLAMINE 108-18-9 ppm 5 5 200 yes yes PAPRFC2 PAPRFC4 

DIISOPROPYL ETHER 108-20-3 ppm 500 250 500 no no PAPRFC2 PAPRFC4 

DIMETHOXYMETHANE 109-87-5 ppm 1,000 1,000 2,200 yes yes NA NA Methylal 

N,N-DIMETHYLACETAMIDE 127-19-5 ppm 10 10 300 no yes PAPRFC2 PAPRFC4 Dimethyl Acetamide 

DIMETHYLAMINE 124-40-3 ppm 10 5 500 yes yes PA3NBC NA 

4-DIMETHYLAMINOAZOBENZENE 60-11-7 mg/m3 CA NA NA 

N,N-DIMETHYLANILINE 121-69-7 ppm 5 5 100 yes yes PAPRFC2 PAPRFC4 

1,3-DIMETHYLBUTYL ACETATE 108-84-9 ppm 50 50 500 yes yes PAPRFC2 PAPRFC4 Sec-Hexyl Acetate 

DIMETHYLCARBAMOYL CHLORIDE 79-44-7 yes yes PAPRFC2 PAPRFC4 

DIMETHYLFORMAMIDE 68-12-2 ppm 10 10 500 yes yes PAPRFC2 PAPRFC4 

2,6-DIMETHYL-4-HEPTANONE 108-83-8 ppm 50 25 500 yes yes PAPRFC2 PAPRFC4 

1,1-DIMETHYLHYDRAZINE 57-14-7 ppm 0.5 0.01 yes yes NA NA 

DIMETHYLNITROSAMINE 62-75-9 no no NA NA N-nitrosodimethylamine 

DIMETHYLPHTHALATE 131-11-3 mg/m3 5 5 2,000 yes no PAPRFC2 PAPRFC4 

DIMETHYL SULFATE 77-78-1 ppm 1 0.1 yes yes PAPRFC2 PAPRFC4 

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Unit of 


DINITROBENZENE, ALL ISOMERS ppm 0.15 no yes PAPRFC2 PAPRFC4 

DINITRO-o-CRESOL 534-52-1 mg/m3 0.2 0.2 5 no yes PAPRFC1 PAPRFC3 

DI-secOCTYL PHTHALATE 117-81-7 ppm 5 5 yes no PAPRFC1 PAPRFC3 

1,4-DIOXANE, TECH. GRADE 123-91-1 ppm 100 20 yes yes PAPRFC2 PAPRFC4 

DIOXATHION (ISO) 78-34-2 mg/m3 0.1 yes yes PAPRFC2 PAPRFC4 

DIPHENYL 92-52-4 ppm 0.2 0.2 100 no no PAPRFC2 PAPRFC4 

DIPHENYLAMINE 122-39-4 mg/m3 10 yes yes PAPRFC1 PAPRFC3 

DIPHENYL ETHER (VAPOUR) 101-84-8 ppm 1 1 100 yes yes PAPRFC2 PAPRFC4 Phenylether 

DIQUAT DIBROMIDE (ISO) 85-00-7 mg/m3 R 0.1 yes yes PAPRFC1 PAPRFC3 

DISODIUM TETRABORATE, 

DECAHYDRATE 

1330-43-4 mg/m3 5 yes yes PAPRFC1 PAPRFC3 

DISULFUR DECAFLUORIDE 5714-22-7 ppm 0.025 C 0.01 1 yes yes PAPRFC2, PA3NBC PAPRFC4 Sulfer Pentafluoride 

DIVANADIUM PENTAOXIDE (AS V) 1314-62-1 mg/m3 C(R) 0.5 0.05 35 yes yes PAPRFC1 PAPRFC3 Vanadium Dust 

DIVINYL BENZENE 1321-74-0 ppm 10 yes yes PAPRFC2 PAPRFC4 

DUSTS mg/m3 no no PAPRFC1 PAPRFC3 

EGDN 628-96-6 ppm 0.2 0.05 75 yes yes PAPRFC2 PAPRFC4 Ethylene Glycol Dinitrate 

EMERY 1302-74-5 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

ENDOSULFAN (ISO) 115-29-7 mg/m3 0.1 yes yes PAPRFC1 PAPRFC3 

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Unit of 


ENDRIN (ISO) 72-20-8 mg/m3 0.1 0.1 2 yes yes PAPRFC1 PAPRFC3 

ENFLURANE 13838-16-9 ppm 75 yes no NA NA 

EPICHLOROHYDRIN 106-89-8 ppm 5 0.5 yes yes PAPRFC2 PAPRFC4 

1,2-EPOXYPROPANE 

(PROPYLENE OXIDE) 

75-56-9 ppm 100 2 yes yes PAPRFC2 PAPRFC4 Propylene Oxide 

2,3-EPOXYPROPYL ISOPROPYL 

ETHER 

4016-14-2 ppm 50 50 400 yes yes PAPRFC2 PAPRFC4 

ETHANE 74-84-0 ppm 1,000 no no NA NA 

ETHANE-1,2-DIOL 107-21-1 mg/m3 C 100 yes yes PAPRFC2 PAPRFC4 Ethylene Glycol 

ETHANETHIOL 75-08-1 ppm 10 0.5 500 yes yes PAPRFC2 PAPRFC4 Ethyl Mercaptan 

ETHANOL 64-17-5 ppm 1,000 1,000 3,300 yes yes NA NA Ethyl Alcohol 

ETHANOLAMINE 141-43-5 ppm 3 3 30 yes yes PAPRFC2 PAPRFC4 

ETHER 60-29-7 ppm 400 400 1,900 yes yes NA NA Ethyl Ether 

2-ETHOXYETHANOL 110-80-5 ppm 200 5 500 yes yes PAPRFC2 PAPRFC4 

2-ETHOXYETHYL ACETATE 111-15-9 ppm 100 5 500 yes yes PAPRFC2 PAPRFC4 

ETHYL ACETATE 141-78-6 ppm 400 400 2,000 yes yes PAPRFC2 PAPRFC4 

ETHYL ACRYLATE 140-88-5 ppm 25 5 yes yes PAPRFC2 PAPRFC4 

ETHYL ALCOHOL 64-17-5 ppm 1,00 1,000 3,300 yes yes PAPRFC2 PAPRFC4 

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Unit of 


ETHYLAMINE 75-04-7 ppm 10 5 6 yes yes PA3NBC NA 

ETHYL AMYL KETONE 541-85-5 ppm 25 25 100 yes yes PAPRFC2 PAPRFC4 5-Methyl-3-Heptanone 

ETHYL BENZENE 100-41-4 ppm 100 100 800 yes yes PAPRFC2 PAPRFC4 

ETHYL BROMIDE 74-96-4 ppm 200 5 2,000 yes yes NA NA 

ETHYL BUTYL KETONE 106-35-4 ppm 50 50 1,000 yes yes PAPRFC2 PAPRFC4 

ETHYL CHLORIDE 75-00-3 ppm 1,000 100 3,800 no no NA NA 

ETHYL CYANOACRYLATE 7085-85-0 ppm 0.2 yes PAPRFC2 PAPRFC4 

ETHYLENE 74-85-1 ppm no no NA NA 

ETHYLENE CHLOROHYDRIN 107-07-3 ppm 5 C 1 7 yes yes PAPRFC2 PAPRFC4 

ETHYLENEDIAMINE 107-15-3 ppm 10 10 1,000 yes yes PAPRFC2 PAPRFC4 

ETHYLENE DIBROMIDE 106-93-4 ppm 20 yes yes PAPRFC2 PAPRFC4 

ETHYLENE DICHLORIDE 107-06-2 ppm 50 10 yes yes PAPRFC2 PAPRFC4 

ETHYLENE DINITRATE 628-96-6 ppm 0.2 0.05 75 yes yes PAPRFC2 PAPRFC4 

ETHYLENE GLYCOL 107-21-1 mg/m3 C 100 yes yes PAPRFC2 PAPRFC4 

ETHYLENE GLYCOL DINITRATE 628-96-6 ppm 0.2 0.05 75 yes yes PAPRFC2 PAPRFC4 

ETHYLENE GLYCOL 

MONOBUTYL ETHER 

111-76-2 ppm 50 20 700 yes yes PAPRFC2 PAPRFC4 2-Butoxy Ethanol 

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Unit of 


ETHYLENE GLYCOL MONOETHYL 

ETHER ACETATE 

111-15-9 ppm 100 5 500 yes yes PAPRFC2 PAPRFC4 2-Ethoxy Ethyl Acetate 

ETHYLENE GLYCOL MONOETHYL 

ETHER 



MONOMETHYL ETHER ACETATE 

110-49-6 ppm 25 5 200 yes yes PAPRFC2 PAPRFC4 Methyl Cellosolve Acetate 


MONOMETHYL ETHER 

109-86-4 ppm 25 5 200 yes yes PAPRFC2 PAPRFC4 Methyl Cellosolve 

ETHYLENEIMINE 151-56-4 ppm 0.5 yes yes NA NA 

ETHYLENE OXIDE 75-21-8 ppm 1 1 80 yes yes NA NA 

ETHYL ETHER 60-29-7 ppm 400 400 1,900 yes yes PAPRFC2 PAPRFC4 

ETHYL FORMATE 109-94-4 ppm 100 100 1,500 yes no PAPRFC2 PAPRFC4 

ETHYLIDENE DICHLORIDE 75-34-3 ppm 100 100 3,000 yes yes PAPRFC2 PAPRFC4 1,1-Dichloroethane 

ETHYL MERCAPTAN 75-08-1 ppm 10 0.5 500 yes yes PAPRFC2 PAPRFC4 

4-ETHYLMORPHOLINE 100-74-3 ppm 20 5 100 yes yes PAPRFC2 PAPRFC4 N-Ethylmorpholine 

ETHYL SILICATE 78-10-4 ppm 100 10 700 yes yes PAPRFC2 PAPRFC4 

FENCHLORPHOS (ISO) 299-84-3 mg/m3 15 10 300 yes no PAPRFC2 PAPRFC4 

FERBAM (ISO) 14484-64-1 mg/m3 15 10 800 yes yes PAPRFC1 PAPRFC3 

FERROCENE 102-54-5 mg/m3 R 5 10 no no PAPRFC2 PAPRFC4 Dicyclopentadienyl Iron 

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Unit of 


FLOUR DUST mg/m3 0.5 no PAPRFC1 PAPRFC3 

FLUORIDE (AS F) 16984-48-8 mg/m3 2.5 2.5 no no PAPRFC1 PAPRFC3 

FLUORINE 7782-41-4 ppm 0.1 1 25 yes yes NA NA 

FLUORODICHLOROMETHANE 75-43-4 ppm 1,000 10 5,000 no no NA NA 

FLUOROTRICHLOROMETHANE 75-69-4 ppm 1,000 C 1,000 2,000 no yes NA NA Freon 11 

FORMALDEHYDE 50-00-0 ppm 0.75 C 0.3 yes no PA3NBC NA 

FORMAMIDE 75-12-7 ppm 10 yes yes PAPRFC2 PAPRFC4 

FORMIC ACID 64-18-6 ppm 5 5 30 yes yes PAPRFC2 PAPRFC4 

2-FURALDEHYDE 98-01-1 ppm 5 2 100 yes yes PAPRFC2 PAPRFC4 

FURFURAL 98-01-1 ppm 5 2 100 yes yes PAPRFC2 PAPRFC4 

FURFURYL ALCOHOL 98-00-0 ppm 50 10 75 yes yes PAPRFC2 PAPRFC4 

GASOLINE 8006-61-9 ppm 300 yes yes PAPRFC2 PAPRFC4 

GERMANE 7782-65-2 ppm 0.2 no no NA NA 

GERMANIUM TETRAHYDRIDE 7782-65-2 ppm 0.2 no no NA NA 

GLASS FIBERS mg/m3 R 5 1 f/cc yes yes PAPRFC1 PAPRFC3 

GLUTARALDEHYDE 111-30-8 ppm C 0.05 yes yes PAPRFC2 PAPRFC4 

GLYCEROL, MIST 56-81-5 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

GLYCEROL TRINITRATE 55-63-0 ppm 0.2 0.05 75 no yes PAPRFC2 PAPRFC4 

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Unit of 


GLYCOL ETHERS ppm 50 20 700 yes yes PAPRFC2 PAPRFC4 

GLYCOL MONOETHYL ETHER ppm 200 5 500 yes yes PAPRFC2 PAPRFC4 

GRAIN DUST mg/m3 10 4 no no PAPRFC1 PAPRFC3 

GRAPHITE 7440-44-0 mg/m3 R 5 R 2 no no PAPRFC1 PAPRFC3 

GUTHION 86-50-0 mg/m3 0.2 0.2 10 yes no PAPRFC2 PAPRFC4 Azinphos-Methyl 

GYPSUM 13397-24-5 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

HAFNIUM 7440-50-6 mg/m3 0.5 0.5 250 yes yes PAPRFC1 PAPRFC3 

HALOTHANE 151-67-7 ppm 50 yes yes PAPRFC2 PAPRFC4 

y-HCH (ISO) mg/m3 0.5 0.5 50 yes yes PAPRFC2 PAPRFC4 

HELIUM 7440-59-7 ppm no no NA NA 

HEPTANE 142-82-5 ppm 500 400 750 yes yes PAPRFC2 PAPRFC4 

HEPTAN-2-ONE 110-43-0 ppm 100 50 800 yes yes PAPRFC2 PAPRFC4 2-Heptanone 

HEPTAN-3-ONE ppm 50 50 1,000 yes yes PAPRFC2 PAPRFC4 

HEXACHLOROETHANE 67-72-1 ppm 1 1 yes yes PAPRFC2 PAPRFC4 

HEXAHYDRO-1,3,5-TRINITRO- 

1,3,5-TRIAZINE 

HEXAMETHYLPHOSPHORIC 

TRIAMIDE 

121-82-4 mg/m3 0.5 no yes PAPRFC1 PAPRFC3 Cyclonite 

680-31-9 yes yes PAPRFC2 PAPRFC4 HMPA 

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Unit of 


N-HEXANE 110-54-3 ppm 500 50 1,100 yes yes PAPRFC2 PAPRFC4 

HEXAN-2-ONE 591-78-6 ppm 100 5 1,600 yes yes PAPRFC2 PAPRFC4 

HEXONE 108-10-1 ppm 100 50 500 yes yes PAPRFC2 PAPRFC4 

HEXYLENE GLYCOL 107-41-5 ppm C25 yes yes PAPRFC2 PAPRFC4 

HYDRAZINE 302-01-2 ppm 1 0.01 yes yes NA NA 

HYDROGEN 1333-74-0 ppm no no NA NA 

HYDROGEN BROMIDE 10035-10-6 ppm 3 C 2 30 yes yes PAPRFC2, PA3NBC PAPRFC4 

HYDROGEN CHLORIDE 4647-01-0 ppm 5 C 2 50 yes yes PAPRFC2, PA3NBC PAPRFC4 

HYDROGEN CYANIDE 74-90-8 ppm 10 C4.7 50 no no NA NA 

HYDROGEN FLUORIDE (AS F) 7664-39-3 ppm 3 C 3 30 yes yes PAPRFC2 PAPRFC4 

HYDROGEN PEROXIDE 7722-84-1 ppm 1 1 75 yes yes NA NA 

HYDROGEN SELENIDE (AS SE) 7783-07-5 ppm 0.05 0.5 1 yes no NA NA 

HYDROGEN SULFIDE 7783-06-4 ppm C 20 10 100 yes no NA NA 

HYDROQUINONE 123-31-9 mg/m3 2 2 50 yes yes PAPRFC2 PAPRFC4 

4-HYDROXY-4-METHYL-PENTAN- 

2-ONE 

123-42-2 ppm 50 50 1,800 yes yes PAPRFC2 PAPRFC4 Diacetone Alcohol 

2-HYDROXYPROPYL ACRYLATE 999-61-1 ppm 0.5 yes yes PAPRFC2 PAPRFC4 

IGE 4016-14-2 ppm 50 50 400 yes yes PAPRFC2 PAPRFC4 Isopropyl Glycidylether 

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Unit of 


IPDI 4098-71-9 ppm 0.005 yes yes PAPRFC2 PAPRFC4 Isophorone Diisocyanate 

2,2’-IMINODIETHANOL 111-42-2 mg/m3 2 yes yes PAPRFC2 PAPRFC4 Diethanolamine 

INDENE 95-13-6 ppm 10 yes yes PAPRFC2 PAPRFC4 

INDIUM AND COMPOUNDS (AS IN) 7440-74-6 mg/m3 0.1 yes yes PAPRFC1 PAPRFC3 

IODINE 7553-56-2 ppm 0.1 C 0.1 2 yes yes PAPRFC2 PAPRFC4 

IODOFORM 75-47-8 ppm 0.6 0.6 yes yes PAPRFC2 PAPRFC4 

IODOMETHANE 74-88-4 ppm 5 2 yes yes NA NA Methy Iodide 

IRON OXIDE, FUME (AS FE) 1309-37-1 mg/m3 10 5 2,500 no no PAPRFC1 PAPRFC3 

IRON PENTACARBONYL 13463-40-6 ppm 0.1 yes no NA NA 

IRON SALTS (AS FE) mg/m3 1 yes yes PAPRFC1 PAPRFC3 

ISOAMYL ACETATE 123-92-2 ppm 100 50 1,000 yes yes PAPRFC2 PAPRFC4 Banana Oil 

ISOAMYL ALCOHOL 123-51-3 ppm 100 100 yes yes PAPRFC2 PAPRFC4 

ISOAMYL METHYL KETONE 110-12-3 ppm 100 50 yes yes PAPRFC2 PAPRFC4 MIAK 

ISOBUTYL ACETATE 110-19-0 ppm 150 150 1,300 yes yes PAPRFC2 PAPRFC4 

ISOBUTYL ALCOHOL 78-83-1 ppm 100 50 1,600 yes yes PAPRFC2 PAPRFC4 

ISOBUTYL METHYL KETONE 108-10-1 ppm 100 50 500 yes yes PAPRFC2 PAPRFC4 Hexone 

ISOOCTYL ALCOHOL 

(MIXED ISOMERS) 

26952-21-6 ppm 50 yes yes PAPRFC2 PAPRFC4 

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Unit of 


ISOPENTYL ACETATE 123-92-2 ppm 100 50 1,000 yes yes PAPRFC2 PAPRFC4 Banana Oil 

ISOPHORONE 78-59-1 ppm 25 C 5 200 yes yes PAPRFC2 PAPRFC4 

ISOPHORONE DIISOCYANATE 4098-71-9 ppm 0.005 yes yes PAPRFC2 PAPRFC4 IPDI 

ISOPROPYL ACETATE 108-21-4 ppm 250 100 1,800 yes yes PAPRFC2 PAPRFC4 

ISOPROPYL ALCOHOL 67-63-0 ppm 400 200 2,000 yes yes PAPRFC2 PAPRFC4 

ISOPROPYL BENZENE 98-82-8 ppm 50 50 900 yes yes PAPRFC2 PAPRFC4 Cumene 

ISOPROPYL ETHER 108-20-3 ppm 500 250 1,400 yes yes PAPRFC2 PAPRFC4 

ISOPROPYL GLYCIDYL ETHER 4016-14-2 ppm 50 50 400 yes yes PAPRFC2 PAPRFC4 

KAOLIN 1332-58-7 mg/m3 R 5 2 no no PAPRFC1 PAPRFC3 China Clay 

KETENE 463-51-4 ppm 0.5 0.5 5 yes yes NA NA 

LPG (LIQUEFIED PETROLEUM GAS) 68476-85-7 ppm 1,000 1,000 2,000 no no NA NA 

LEAD AND INORGANIC 

COMPOUNDS (AS Pb) 

7439-92-1 mg/m3 0.05 0.05 100 yes no PAPRFC1 PAPRFC3 

LIMESTONE 1317-65-3 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

LINDANE 58-89-9 mg/m3 0.5 0.5 50 yes yes PAPRFC2 PAPRFC4 

LITHIUM HYDRIDE 7580-67-8 mg/m3 0.025 0.025 0.5 yes yes PAPRFC1 PAPRFC3 

LITHIUM HYDROXIDE 1310-65-2 mg/m3 yes no PAPRFC1 PAPRFC3 

MDA 101-77-9 ppm 0.01 0.1 yes no PAPRFC2 PAPRFC4 4,4'-Methylenedianiline 

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Unit of 


MDI 101-68-8 ppm C 0.02 0.005 7 yes no PAPRFC2 PAPRFC4 

Methylene Bisphenyl 

Isocyanate 

MEK 78-93-3 ppm 200 200 3,000 yes yes PAPRFC2 PAPRFC4 2-Butanone 

MIKB 108-10-1 ppm 100 50 500 yes yes PAPRFC2 PAPRFC4 Methy Isobutyl Ketone 

MAGNESITE 546-93-0 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

MAGNESIUM OXIDE, FUME 

AND DUST (AS MG) 

1309-48-4 mg/m3 15 10 750 yes no PAPRFC1 PAPRFC3 

MALATHION (ISO) 121-75-5 mg/m3 15 1 250 yes yes PAPRFC2 PAPRFC4 

MALEIC ANHYDRIDE 108-31-6 ppm 0.25 0.1 10 yes yes PAPRFC2 PAPRFC4 

MANGANESE, FUME (AS MN) 7439-96-5 mg/m3 C 5 0.2 500 no no PAPRFC1 PAPRFC3 

MANGANESE AND 

COMPOUNDS (AS MN) 

7439-96-5 mg/m3 C 5 0.2 500 no no PAPRFC1 PAPRFC3 

MANGANESE CYCLOPENTADIENYL 

TRICARBONYL 

12079-65-1 mg/m3 5 0.1 no yes NA NA MMT 

MANGANESE TETROXIDE 1317-35-7 mg/m3 C 5 no no PAPRFC1 PAPRFC3 

MARBLE 1317-65-3 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

MEQUINOL (INN) 

(P-METHOXYPHENOL) 

150-76-5 mg/m3 5 yes yes PAPRFC1 PAPRFC3 4-Methoxyphenol 

MERCAPTOACETIC ACID 68-11-1 ppm 1 yes yes PAPRFC2 PAPRFC4 Thioglycolic Acid 

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Unit of 


MERCURY ALKYLS (AS HG) mg/m3 0.01 0.01 2 yes yes NA NA 

MERCURY & ITS INORGANIC 

DIVALENT COMPOUNDS 

7439-97-6 mg/m3 0.1 0.025 10 yes yes NA NA 

MESITYLENE 108-67-8 ppm ppm yes yes PAPRFC2 PAPRFC4 1,3,5-Trimethylbenzene 

MESITYL OXIDE 141-79-7 ppm 25 15 1400 yes yes PAPRFC2 PAPRFC4 

METHACRYLIC ACID 79-41-4 ppm 20 yes yes PAPRFC2 PAPRFC4 

METHACRYLONITRILE 126-98-7 ppm 1 yes yes NA NA 

METHANE 74-82-8 ppm 1,000 no no NA NA 

METHANETHIOL 74-93-1 ppm C 10 0.5 150 yes yes PAPRFC2 PAPRFC4 Methyl Mercaptan 

METHANOL 67-56-1 ppm 200 200 6,000 yes yes NA NA Methyl Alcohol 

METHOMYL (ISO) 

16752- 

77-5 

mg/m3 2.5 yes yes PAPRFC1 PAPRFC3 

METHOXYCHLOR (ISO) 72-43-5 mg/m3 15 10 no no PAPRFC1 PAPRFC3 

2-METHOXYETHANOL 109-86-4 ppm 25 5 200 yes yes PAPRFC2 PAPRFC4 Methyl Cellosolve 

2-METHOXYETHYL ACETATE 110-49-6 ppm 25 5 200 yes yes PAPRFC2 PAPRFC4 Methyl Cellosolve Acetate 

METHOXYPHENOL 9009-62-5 mg/m3 5 yes yes PAPRFC1 PAPRFC3 

1-METHOXYPROPAN-2-OL 107-98-2 ppm 100 yes yes PAPRFC2 PAPRFC4 

METHYL ACETATE 79-20-9 ppm 200 200 3,100 yes yes PAPRFC2 PAPRFC4 

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Unit of 


METHYL ACRYLATE 96-33-3 ppm 10 2 250 yes yes PAPRFC2 PAPRFC4 

METHYLAL 109-87-5 ppm 1,000 1,000 2,200 yes yes NA NA 

METHYL ALCOHOL 67-56-1 ppm 200 200 6,000 yes yes NA NA Carbinol 

METHYLAMINE 74-89-5 ppm 10 5 100 yes yes PA3NBC NA 

METHYL-n-AMYL-KETONE 110-43-0 ppm 100 50 800 yes yes PAPRFC2 PAPRFC4 

N-METHYLANILINE 100-61-8 ppm 2 0.5 100 no no PAPRFC2 PAPRFC4 

2-METHYLAZIRIDINE 75-55-8 ppm 2 2 yes yes PAPRFC2 PAPRFC4 Propylene Imine 

METHYL BROMIDE 74-83-9 ppm 20 1 yes yes NA NA 

3-METHY-1-BUTANOL 123-51-3 ppm 100 100 500 yes yes PAPRFC2 PAPRFC4 Isoamyl Alcohol 

1-METHYLBUTYL ACETATE 626-38-0 ppm 125 50 1,000 yes yes PAPRFC2 PAPRFC4 sec-Amyl Acetate 

METHYL-n-BUTYL KETONE 591-78-6 ppm 100 5 1,600 yes yes PAPRFC2 PAPRFC4 2-Hexanone 

METHYL CHLORIDE 74-87-3 ppm 100 50 yes yes NA NA 

METHYL CHLOROFORM 71-55-6 ppm 350 350 700 yes yes PAPRFC2 PAPRFC4 

METHYL-2-CYANOACRYLATE 137-05-3 ppm 0.2 yes yes PAPRFC2 PAPRFC4 

METHYLCYCLOHEXANE 108-87-2 ppm 500 400 1,200 no no PAPRFC2 PAPRFC4 

METHYLCYCLOHEXANOL 25639-42-3 ppm 100 50 500 yes yes PAPRFC2 PAPRFC4 

2-METHYLCYCLOHEXANONE 583-60-8 ppm 100 50 600 yes yes PAPRFC2 PAPRFC4 

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Unit of 


METHYLCYCLOPENTADIENYL 

MANGANESE, TRICARBONYL 

(AS Mn) 

12108-13-3 mg/m3 5 0.2 yes yes PAPRFC2 PAPRFC4 

4,4’-METHYLENEBIS- 

(2-CHLOROANILINE) 

101-14-4 ppm 0.01 yes yes PAPRFC2 PAPRFC4 

METHYLENE CHLORIDE 75-09-2 ppm 25 50 yes yes NA NA 

4,4’-METHYLENE-DIPHENYL 

DIISOCYANATE 

101-68-8 mg/m3 C 0.02 0.005 no no NA NA MDI 

4,4’-METHYLENEDIANILINE (MDA) 101-77-9 ppm 0.01 0.1 yes no PAPRFC2 PAPRFC4 MDA 

METHYL ETHYL KETONE 78-93-3 ppm 200 200 3,000 yes yes PAPRFC2 PAPRFC4 MEK,2-Butanone 

METHYL ETHYL KETONE 

PEROXIDES (MEKP) 

1338-23-4 ppm C 0.2 yes yes PAPRFC2 PAPRFC4 MEKP 

METHYL FORMATE 107-31-3 ppm 100 100 4,500 yes no NA NA 

5-METHYLHEPTAN-3-ONE 541-85-5 ppm 25 25 100 yes yes PAPRFC2 PAPRFC4 

5-METHYLHEXAN-2-ONE 18217-12-4 ppm 100 50 yes yes PAPRFC2 PAPRFC4 

METHYL IODIDE 74-88-4 ppm 5 2 yes yes NA NA 

METHYL ISOAMYL KETONE 110-12-3 ppm 100 50 yes yes PAPRFC2 PAPRFC4 

METHYL ISOBUTYL CARBINOL 108-11-2 ppm 25 25 400 yes yes PAPRFC2 PAPRFC4 

METHYL ISOBUTYL KETONE 108-10-1 ppm 100 50 500 yes yes PAPRFC2 PAPRFC4 Hexone 

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Unit of 


METHYL ISOCYANATE 624-83-9 ppm 0.02 0.02 7.5 yes yes NA NA 

METHYL MERCAPTAN 74-93-1 ppm C10 0.5 150 yes yes PAPRFC2 PAPRFC4 

METHYL METHACRYLATE 80-62-6 ppm 100 50 1,000 yes yes PAPRFC2 PAPRFC4 

METHYL PARATHION 298-00-0 mg/m3 0.2 yes yes PAPRFC2 PAPRFC4 

2-METHYLPENTANE-2,4-DIOL 107-41-5 ppm C 25 yes yes PAPRFC2 PAPRFC4 Hexylene Glycol 

4-METHYLPENTAN-2-OL 108-11-2 ppm 25 25 400 yes yes PAPRFC2 PAPRFC4 

4-METHYLPENT-3-EN-2-ONE 141-79-7 ppm 25 15 1,400 yes yes PAPRFC2 PAPRFC4 

2-METHYLPROPAN-1-OL 78-83-1 ppm 100 50 1,600 yes yes PAPRFC2 PAPRFC4 Isobutyl Alcohol 

2-METHYLPROPAN-2-OL 75-650 ppm 100 100 1,600 yes yes PAPRFC2 PAPRFC4 tert-Butylalcohol 

METHYL PROPYL KETONE 107-87-9 ppm 200 200 1,500 yes yes PAPRFC2 PAPRFC4 2-Pentanone 

METHYL SILICATE 681-84-5 ppm 1 yes no PAPRFC2 PAPRFC4 

a-METHYLSTYRENE 98-83-9 ppm C100 50 700 yes no PAPRFC2 PAPRFC4 

METHYLSTYRENES, ALL ISOMERS 

EXCEPT a-METHYLSTYRENE 

ppm 100 50 400 yes yes PAPRFC2 PAPRFC4 

N-METHYL-N,2,4,6- 

TETRANITROANILINE 


MEVINPHOS (ISO) 7786-34-7 mg/m3 0.1 0.01 4 yes yes PAPRFC2 PAPRFC4 Phosdrin 

MICA 12001-26-2 mg/m3 3 3 1,500 yes no PAPRFC1 PAPRFC3 

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Unit of 


MINERAL WOOL mg/m3 R 5 1 f/cc yes yes PAPRFC1 PAPRFC3 

MOLYBDENUM COMPOUNDS 

(AS MO) 

7439-98-7 mg/m3 15 10 5,000 yes no PAPRFC1 PAPRFC3 

MONOCHLOROACETIC ACID 79-11-8 ppm yes yes PAPRFC2 PAPRFC4 MCA 

MORPHOLINE 110-91-8 ppm 20 20 1,400 yes yes PAPRFC2 PAPRFC4 

NALED (ISO) 300-76-5 mg/m3 3 0.1 200 yes yes PAPRFC2 PAPRFC4 

NAPHTHALENE 91-20-3 ppm 10 10 250 yes yes PAPRFC2 PAPRFC4 

1-NAPHTHYLAMINE 134-32-7 CA no yes NA NA 

2-NAPHTHYLAMINE 91-59-8 CA CA no yes NA NA 

NEON 7440-01-9 ppm no no NA NA 

NICKEL 7440-02-0 mg/m3 1 1.5 no yes PAPRFC1 PAPRFC3 

NICKEL CARBONYL 13463-39-3 ppm 0.001 0.05 no no NA NA 

NICKEL INORGANIC 

COMPOUNDS (AS NI) 

mg/m3 0.1 no no PAPRFC1 PAPRFC3 

NICOTINE 54-11-5 ppm 0.5 0.5 5* no no PAPRFC2 PAPRFC4 

NITRAPYRIN 1929-82-4 mg/m3 R 5 10 no no PAPRFC2 PAPRFC4 

NITRIC ACID 7697-37-2 ppm 2 2 25 yes yes NA NA 

NITRIC OXIDE 10102-43-9 ppm 25 25 100 yes no NA NA 

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Unit of 


4-NITROANILINE 100-01-6 mg/m3 6 3 300 yes yes PAPRFC2 PAPRFC4 

NITROBENZENE 98-95-3 ppm 1 1 200 yes yes PAPRFC2 PAPRFC4 

4-NITROBIPHENYL 92-93-3 CA CA no no NA NA 

NITROETHANE 79-24-3 ppm 100 100 1,000 yes yes PAPRFC2 PAPRFC4 

NITROGEN 7727-37-9 ppm no no NA NA 

NITROGEN DIOXIDE 10102-44-0 ppm C 5 3 20 yes no NA NA 

NITROGEN MONOXIDE 10102-43-9 ppm 25 25 100 yes no NA NA Nitric Oxide 

NITROGEN TRIFLUORIDE 7783-54-2 ppm 10 10 2,000 no no NA NA 

NITROGLYCERINE 55-63-0 ppm 0.2 0.05 7.5 no yes PAPRFC2 PAPRFC4 

NITROMETHANE 75-52-5 ppm 100 20 750 yes yes PAPRFC2 PAPRFC4 

2-NITRONAPHTHALENE 581-89-5 ppm no yes PAPRFC2 PAPRFC4 

1-NITROPROPANE 108-03-2 ppm 25 25 1,000 yes no PAPRFC2 PAPRFC4 

2-NITROPROPANE 79-46-9 ppm 25 10 yes yes PAPRFC2 PAPRFC4 

NITROTOLUENE, ALL ISOMERS 1321-12-6 ppm 5 2 200 no yes PAPRFC2 PAPRFC4 

NITROUS OXIDE 10024-97-2 ppm 50 no no NA NA 

OCTACHLORONAPHTHALENE 2234-13-1 mg/m3 0.1 0.1 no yes PAPRFC2 PAPRFC4 

N-OCTANE 111-65-9 ppm 500 300 1,000 yes yes PAPRFC2 PAPRFC4 

OIL MIST, MINERAL 8012-95-1 mg/m3 5 5 2,500 yes yes PAPRFC1 PAPRFC3 

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Unit of 


ORTHOPHOSPHORIC ACID 7664-38-2 mg/m3 1 1 1,000 yes yes PAPRFC1 PAPRFC3 

OSMIUM TETROXIDE (AS OS) 20816-12-0 mg/m3 0.0002 0.0002 1 yes yes PAPRFC2 PAPRFC4 

OXALIC ACID 144-62-7 mg/m3 1 1 500 yes yes PAPRFC2 PAPRFC4 

OXALONITRILE 460-19-5 ppm 10 yes yes NA NA Cyanogen 

OZONE 10028-15-16 ppm 0.1 Various 5 yes no PAPRFC2 PAPRFC4 

PGDN 6423-43-4 ppm 0.05 yes yes PAPRFC2 PAPRFC4 Propylene Glycol Dinitrate 

PARAFFIN WAX, FUME 8002-74-2 mg/m3 2 yes yes PAPRFC1 PAPRFC3 

PARAQUAT DICHLORIDE (ISO) 1910-42-5 mg/m3 R 0.5 R 0.1 1 yes yes PAPRFC2 PAPRFC4 

PARATHION (ISO) 56-38-2 mg/m3 0.1 0.05 10* yes yes PAPRFC2 PAPRFC4 

PARATHION-METHYL (ISO) 298-00-0 mg/m3 0.2 yes yes PAPRFC2 PAPRFC4 

PENTACARBONYLIRON (AS FE) 13463-40-6 ppm 0.1 yes no NA NA 

PENTACHLOROPHENOL 87-86-5 mg/m3 0.5 0.5 2.5 yes yes PAPRFC2 PAPRFC4 

PENTAERYTHRITOL 115-77-5 mg/m3 R 5 10 yes no PAPRFC1 PAPRFC3 

PENTANE, ALL ISOMERS 109-66-0 ppm 1,000 600 1,500 yes yes PAPRFC2 PAPRFC4 

PENTAN-2-ONE 107-87-9 ppm 200 200 1,500 yes yes PAPRFC2 PAPRFC4 

PENTAN-3-ONE 96-22-0 ppm 200 yes yes PAPRFC2 PAPRFC4 

PENTYL ACETATE 628-63-7 ppm 100 50 1,000 yes yes PAPRFC2 PAPRFC4 Amyl Acetate 

PERCHLOROETHYLENE 127-18-4 ppm 100 25 yes yes PAPRFC2 PAPRFC4 

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Unit of 


PERCHLORYL FLUORIDE 7616-94-6 ppm 3 3 100 no no NA NA 

PHENACYL CHLORIDE 532-27-4 ppm 0.05 0.05 15 yes yes PAPRFC2 PAPRFC4 Tear Gas, Mace 

PHENOL 108-95-2 ppm 5 5 250 yes yes PAPRFC2 PAPRFC4 

p-PHENYLENEDIAMINE 106-50-3 mg/m3 0.1 0.1 25 no yes PAPRFC2 PAPRFC4 

PHENYL-2,3-EPOXYPROPYL ETHER 122-60-1 ppm 10 0.1 yes yes PAPRFC2 PAPRFC4 

PHENYLETHYLENE 100-42-5 ppm 100 20 700 yes yes PAPRFC2 PAPRFC4 Styrene 

PHENYLHYDRAZINE 100-63-0 ppm 5 0.1 no yes PAPRFC2 PAPRFC4 

PHORATE (ISO) 298-02-2 mg/m3 0.05 yes yes PAPRFC2 PAPRFC4 

PHOSDRIN 7786-34-7 mg/m3 0.1 0.01 4 yes yes PAPRFC2 PAPRFC4 

PHOSGENE 75-44-5 ppm 0.1 0.1 2 yes no PAPRFC2 PAPRFC4 

PHOSPHINE 7803-15-2 ppm 0.3 0.3 50 no no NA NA 

PHOSPHORIC ACID 7664-38-2 mg/m3 1 1 1,000 yes yes PAPRFC1 PAPRFC3 

PHOSPHORUS, YELLOW 7723-14-0 mg/m3 0.1 0.1 5 yes yes NA NA 

PHOSPHORUS OXYCHLORIDE 10025-87-3 ppm 0.1 yes yes PAPRFC2, PA3NBC PAPRFC4 

PHOSPHORUS PENTACHLORIDE 10026-13-8 ppm 1 0.1 70 yes yes PA3NBC NA 

PHOSPHORUS PENTASULFIDE 1314-80-3 mg/m3 1 1 250 yes yes PAPRFC1 PAPRFC3 

PHOSPHORUS TRICHLORIDE 7719-12-2 ppm 0.5 0.2 25 yes yes PA3NBC NA 

PHTHALIC ANHYDRIDE 85-44-9 ppm 2 1 60 yes yes PAPRFC2 PAPRFC4 

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Unit of 


PICLORAM (ISO) 1918-02-1 mg/m3 R 5 10 yes yes PAPRFC2 PAPRFC4 

PICRIC ACID 88-89-1 mg/m3 0.1 0.1 75 yes yes PAPRFC1 PAPRFC3 

PIPERAZINE DIHYDROCHLORIDE 142-64-3 mg/m3 5 yes yes PAPRFC1 PAPRFC3 

PLASTER OF PARIS 26499-65-0 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

PLATINUM METAL 7440-06-4 mg/m3 1 no no PAPRFC1 PAPRFC3 

PLATINUM SALTS, SOLUBLE (AS PT) mg/m3 0.002 0.002 4 yes yes PAPRFC1 PAPRFC3 

POLYCHLORINATED 

BIPHENYLS (PCBs) 

11097-69-1 mg/m3 0.5 yes no PAPRFC2 PAPRFC4 PCBs 

PORTLAND CEMENT 65997-15-1 mg/m3 R 5 10 5,000 yes yes PAPRFC1 PAPRFC3 

POTASSIUM BROMATE 7758-01-2 no no PAPRFC1 PAPRFC3 

POTASSIUM HYDROXIDE 1310-58-3 mg/m3 C 2 yes no PAPRFC1 PAPRFC3 

PROPANE 74-98-6 ppm 1,000 1,000 2,100 no no NA NA 

n-PROPANOL 71-23-8 ppm 200 200 800 yes yes PAPRFC2 PAPRFC4 

PROPAN-1-OL 71-23-8 ppm 200 200 800 yes yes PAPRFC2 PAPRFC4 

PROPAN-2-OL 67-63-0 ppm 400 200 2,000 yes yes PAPRFC2 PAPRFC4 

3-PROPANOLIDE 

(PROPIOLACTONE) 

57-57-8 ppm 0.5 yes yes NA NA 

PROPARGYL ALCOHOL 107-19-7 ppm 1 no yes PAPRFC2 PAPRFC4 

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Unit of 


PROPIONIC ACID 79-09-4 ppm 10 yes yes PAPRFC2 PAPRFC4 

PROPOXUR (ISO) 114-26-1 mg/m3 0.5 no no PAPRFC2 PAPRFC4 

N-PROPYL ACETATE 109-60-4 ppm 200 200 1,700 yes yes PAPRFC2 PAPRFC4 

PROPYLENE 115-07-1 ppm no no NA NA 

PROPYLENE GLYCOL 57-55-6 ppm no no PAPRFC2 PAPRFC4 

PROPYLENE GLYCOL DINITRATE 6423-43-4 ppm 0.05 yes no PAPRFC2 PAPRFC4 

PROPYLENE GLYCOL 

MONOMETHYL ETHER 

107-98-2 ppm 100 yes yes PAPRFC2 PAPRFC4 

PROPYLENE OXIDE 75-56-9 ppm 100 2 yes yes PAPRFC2 PAPRFC4 

PROP-2-YN-1-OL 107-19-7 ppm 1 no yes PAPRFC2 PAPRFC4 

PYRETHRINS (ISO) 8003-34-7 mg/m3 5 5 5,000 no yes PAPRFC1 PAPRFC3 

PYRIDINE 110-86-1 ppm 5 1 1,000 yes yes PAPRFC2 PAPRFC4 

PYROCATECHOL 120-80-9 mg/m3 5 yes yes PAPRFC2 PAPRFC4 

QUARTZ 14808-60-7 mg/m3 10 R 0.05 yes no PAPRFC1 PAPRFC3 Silica, Crystalline 

QUINONE 106-51-4 ppm 0.1 0.1 100 yes yes PAPRFC2 PAPRFC4 

RDX 121-82-4 mg/m3 0.5 no yes PAPRFC1 PAPRFC3 Cyclonite 

RESORCINOL 108-46-3 mg/m3 10 yes yes PAPRFC2 PAPRFC4 

RHODIUM METAL 7440-16-6 mg/m3 0.1 1 100 no no PAPRFC1 PAPRFC3 

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Unit of 


RHODIUM SOLUBLE SALTS mg/m3 0.001 0.01 100 no no PAPRFC1 PAPRFC3 

RONNEL 299-84-3 mg/m3 15 10 300 yes no PAPRFC2 PAPRFC4 

ROSIN CORE SOLDER 

PYROLYSIS PRODUCTS 

mg/m3 yes no PAPRFC2 PAPRFC4 

ROTENONE (ISO) 83-79-4 mg/m3 5 5 2,500 yes yes PAPRFC1 PAPRFC3 

ROUGE 

SELENIUM AND COMPOUNDS, 

1309-37-1 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

EXCEPT HYDROGEN SELENIDE 

(AS SE) 


SILANE 7803-62-5 ppm 5 yes yes NA NA 

SILICA, AMORPHOUS 7631-86-9 mg/m3 6 R 3 3,000 yes no PAPRFC1 PAPRFC3 

SILICA, CRYSTALLINE, 

RESPIRABLE DUST 

14808-60-7 mg/m3 various R 0.05 PAPRFC1 PAPRFC3 

SILICA, FUSED mg/m3 R 0.1 no no PAPRFC1 PAPRFC3 

SILICON 7440-21-3 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

SILICON CARBIDE 409-21-2 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

SILICON TETRAHYDRIDE 7803-62-5 ppm 5 yes yes NA NA 

SILVER , METALLIC 7440-22-4 mg/m3 0.01 0.1 10 yes yes PAPRFC1 PAPRFC3 

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Unit of 


SILVER, SOLUBLE COMPOUNDS 

(AS Ag) 


SODIUM AZIDE (AS NaN3) 26628-22-8 mg/m3 C0.29 yes yes PAPRFC1 PAPRFC3 

SODIUM FLUOROACETATE 62-74-8 mg/m3 0.05 0.05 2.5 no no PAPRFC1 PAPRFC3 

SODIUM HYDROGENSULFITE 7631-90-5 mg/m3 5 yes yes PA3NBC NA Sodium Bisulfite 

SODIUM HYDROXIDE 1310-73-2 mg/m3 2 C2 10 yes yes PAPRFC1 PAPRFC3 

SODIUM METABISULFITE 7681-57-4 mg/m3 5 yes yes PA3NBC NA 

SOFT WOOD DUST mg/m3 R 5 5 yes no PAPRFC1 PAPRFC3 

SOLUBLE PLATINUM SALTS mg/m3 0.002 0.002 4 yes yes PAPRFC1 PAPRFC3 

STARCH 9005-25-8 mg/m3 R 5 10 yes yes PAPRFC1 PAPRFC3 

STIBINE 7803-52-3 ppm 0.1 0.1 5 no no NA NA 

STODDARD SOLVENT 8052-41-3 ppm 500 100 yes yes PAPRFC2 PAPRFC4 

STRONTIUM CHROMATE 7789-06-2 mg/m3 C 0.01 0.0005 PAPRFC1 PAPRFC3 

STRYCHNINE 57-24-9 mg/m3 0.15 0.15 3 no no PAPRFC1 PAPRFC3 

STYRENE 100-42-5 

1395-21-7 

ppm 100 20 700 yes no PAPRFC2 PAPRFC4 

SUBTILISINS 

(BPN) 

9014-01-1 

(Carlsburg) 

mg/m3 C 0.00006 yes yes NA NA 

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Unit of 


SUCROSE 57-50-1 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 

SULFUR DIOXIDE 7446-09-5 ppm 5 2 100 yes no PAPRFC2, PA3NBC PAPRFC4 

SULFUR HEXAFLUORIDE 2551-62-4 ppm 1,000 1,000 no no NA NA 

SULFURIC ACID 7664-93-9 mg/m3 1 0.2 15 yes yes PAPRFC1 PAPRFC3 

SULFUR MONOCHLORIDE 10025-67-9 ppm 1 C1 5 yes yes PA3NBC NA 

SULFUR PENTAFLUORIDE 5714-22-7 ppm 0.025 C 0.01 1 yes yes PA3NBC NA 

SULFUR TETRAFLUORIDE 7783-60-0 ppm C 0.1 yes yes PA3NBC NA 

SULFURYL DIFLUORIDE 2699-79-8 ppm 5 5 200 yes no NA NA 

SYNTHETIC VITREOUS FIBERS mg/m3 R 5 1 f/cc yes yes PAPRFC1 PAPRFC3 

2,4,5-T (ISO) 93-76-5 mg/m3 10 10 250 no yes PAPRFC1 PAPRFC3 

TDI 584-84-9 ppm C0.02 0.005 yes yes NA NA 

TEPP (ISO) 107-49-3 mg/m3 0.05 0.05 5 yes no PAPRFC2 PAPRFC4 

TNT 118-96-7 mg/m3 1.5 0.1 500 yes yes PAPRFC2 PAPRFC4 

TALC 14807-96-6 mg/m3 2 R 2 1,000 yes no PAPRFC1 PAPRFC3 

TANTALUM 7440-25-7 mg/m3 5 5 2,500 yes yes PAPRFC1 PAPRFC3 

TELLURIUM & COMPOUNDS 

EXCEPT HYDROGEN TELLURIDE 

(AS TE) 

13494-80-9 mg/m3 0.1 0.1 25 no yes PAPRFC1 PAPRFC3 

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Unit of 


TELLURIUM HEXAFLUORIDE 

(AS TE) 

7783-80-4 ppm 0.02 0.02 1 no no NA NA 

TERPHENYLS (ALL ISOMERS) mg/m3 9 C 5 no no PAPRFC1 PAPRFC3 

1,1,2,2-TETRABROMOETHANE 79-27-6 ppm 1 1 8 yes yes PAPRFC2 PAPRFC4 

TETRABROMOMETHANE 79-27-6 ppm 1.4 0.1 yes yes PAPRFC2 PAPRFC4 

TETRACARBONYLNICKEL (AS NI) 13463-39-3 ppm 0.001 0.05 no no NA NA 

1,1,1,2-TETRACHLORO-2,2- 

DIFLUOROETHANE 


1,1,2,2-TETRACHLORO-1,2- 

DIFLUOROETHANE 


TETRACHLOROETHYLENE 127-18-4 ppm 100 25 yes yes PAPRFC2 PAPRFC4 

Carbontetrachloride, 

TETRACHLOROMETHANE 56-23-5 ppm 10 5 yes yes PAPRFC2 PAPRFC4 

Freon 10, Ceiling 25 ppm, 

200 ppm, 5 min max peak 

in any 4 hours 

TETRACHLORONAPHTHALENES, 

ALL ISOMERS 

mg/m3 2 2 no yes PAPRFC2 PAPRFC4 

TETRAETHYL LEAD 78-00-2 mg/m3 0.075 0.1 40 yes yes PAPRFC2 PAPRFC4 

TETRAETHYL ORTHOSILICATE 78-10-4 ppm 100 10 700 yes no PAPRFC2 PAPRFC4 Ethyl Silicate 

TETRAHYDROFURAN 109-99-9 ppm 200 200 2,000 yes no PAPRFC2 PAPRFC4 

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Unit of 


TETRAMETHYL SUCCINONITRILE 3333-52-6 ppm 0.5 0.5 5 no no PAPRFC2 PAPRFC4 

TETRASODIUM PYROPHOSPHATE 7722-88-5 mg/m3 5 yes yes PAPRFC1 PAPRFC3 

TETRYL 479-45-8 mg/m3 1.5 1.5 750 yes yes PAPRFC1 PAPRFC3 

THALLIUM, SOLUBLE 

COMPOUNDS (AS TL) 


4,4’-THIOBIS 

(6-tert-BUTYL-m-CRESOL) 

96-69-5 mg/m3 R 5 10 no no PAPRFC1 PAPRFC3 

THIOGLYCOLIC ACID 68-11-1 ppm 1 yes yes PAPRFC2 PAPRFC4 

THIONYL CHLORIDE 7719-09-7 ppm C 1 yes yes PA3NBC NA 

THIRAM (ISO) 137-26-8 mg/m3 5 1 100 yes yes PAPRFC2 PAPRFC4 

TIN COMPOUNDS, INORGANIC, 

EXCEPT SNH4 (AS SN) 

7440-31-5 mg/m3 2 2 100 yes yes PAPRFC1 PAPRFC3 

TIN COMPOUNDS, ORGANIC, 

EXCEPT CYHEXATIN (ISO) (AS SN) 

mg/m3 0.1 0.1 25 yes yes PAPRFC2 PAPRFC4 

TITANIUM DIOXIDE 13463-67-7 mg/m3 15 10 no no PAPRFC1 PAPRFC3 

TOLUENE 108-88-3 ppm 200 50 500 yes yes PAPRFC2 PAPRFC4 

TOLUENE DIISOCYANATE 584-84-9 ppm C 0.02 0.005 yes yes PAPRFC2 PAPRFC4 TDI 

O-TOLUIDINE 95-53-4 ppm 5 2 yes yes PAPRFC2 PAPRFC4 

TRIBROMOMETHANE 75-25-2 ppm 0.5 0.5 850 yes yes PAPRFC2 PAPRFC4 Bromoform 

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Unit of 


TRIBUTYL PHOSPHATE, ALL 

ISOMERS 

TRICARBONYL 

126-73-8 ppm 5 0.2 30 yes yes PAPRFC2 PAPRFC4 TBP 

(ETA-CYCLOPENTADIENYL) 

MANGANESE (AS MN) 

TRICARBONYL 

12079-65-1 mg/m3 5 0.1 no yes NA NA MCT 

(METHYLCYCLOPENTADIENYL) 

MANGANESE AS MN 

12108-13-3 mg/m3 5 0.2 yes yes NA NA MMT, MCMT 

TRICHLOROACETIC ACID 76-03-9 mg/m3 1 yes yes PAPRFC2 PAPRFC4 

1,2,4-TRICHLOROBENZENE 120-82-1 ppm C 5 yes yes PAPRFC2 PAPRFC4 

1,1,1-TRICHLOROETHANE 71-55-6 mg/m3 350 350 700 yes yes PAPRFC2 PAPRFC4 Methyl Chloroform 

TRICHLOROETHYLENE 79-01-6 ppm 100 50 yes yes PAPRFC2 PAPRFC4 TCE 

TRICHLOROFLUOROMETHANE 75-69-4 ppm 1,000 C 1000 2,000 no yes NA NA Freon 11 

TRICHLOROMETHANE 67-66-3 ppm 50 10 yes yes PAPRFC2 PAPRFC4 Chloroform 

TRICHLORONITROMETHANE 76-06-2 ppm 0.1 0.1 2 yes yes PAPRFC2 PAPRFC4 Chloropicrin 

2,4,5-TRICHLOROPHENOXY- 

ACETIC ACID 

93-76-5 mg/m3 10 10 250 no yes PAPRFC1 PAPRFC3 

1,2,3-TRICHLOROPROPANE 96-18-4 ppm 50 10 yes yes PAPRFC2 PAPRFC4 

1,1,2-TRICHLOROTRIFLUORO- 

ETHANE 

76-13-1 ppm 1,000 1,000 2,000 no yes NA NA 

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Unit of 


TRI-o-CRESYL PHOSPHATE 78-30-8 mg/m3 0.1 0.1 40 no no PAPRFC1 PAPRFC3 

TRICYCLOHEXYLTIN 

HYDROXIDE 

13121-70-5 mg/m3 0.32 5 80 yes yes PAPRFC2 PAPRFC4 Cyhexatin 

TRIDYMITE, RESPIRABLE DUST 14808-60-7 mg/m3 0.05 R0.05 yes no PAPRFC1 PAPRFC3 

Silica, Crystalline as 

respirable dust 

TRIETHYLAMINE 121-44-8 ppm 25 1 200 yes yes PA3NBC NA 

TRIFLUOROBROMOMETHANE 75-63-8 ppm 1,000 1,000 40,000 no no NA NA 

TRIMANGANESE TETRAOXIDE 1317-35-7 mg/m3 C 5 no no PAPRFC1 PAPRFC3 

TRIMELLITIC ANHYDRIDE 552-30-7 mg/m3 C 0.04 yes yes PAPRFC2 PAPRFC4 

TRIMETHYLAMINE 75-50-3 ppm 5 yes yes PA3NBC NA 

TRIMETHYLBENZENES, ALL 

ISOMERS 

ppm 25 no no PAPRFC2 PAPRFC4 

3,5,5-TRIMETHYLCYCLOHEX- 

2-ENONE 

78-59-1 ppm 25 C 5 200 yes yes PAPRFC2 PAPRFC4 Isophorone 

TRIMETHYL PHOSPHITE 121-45-9 ppm 2 yes yes PAPRFC2 PAPRFC4 

2,4,6-TRINITROPHENOL 88-89-1 mg/m3 0.1 0.1 75 yes yes PAPRFC1 PAPRFC3 Picric Acid 

2,4,6-TRINITROTOLUENE 118-96-7 mg/m3 1.5 0.1 500 yes yes PAPRFC2 PAPRFC4 

TRIPHENYL PHOSPHATE 115-86-6 mg/m3 3 3 1,000 no no PAPRFC2 PAPRFC4 

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Unit of 


TUNGSTEN & INSOL. 

COMPOUNDS (AS W) 

7440-33-7 mg/m3 5 yes yes PAPRFC1 PAPRFC3 

TURPENTINE 8006-64-2 ppm 100 20 800 yes yes PAPRFC2 PAPRFC4 

URANIUM COMPOUNDS, 

NATURAL, SOLUBLE (AS U) 

mg/m3 0.25 0.2 yes yes PAPRFC1 PAPRFC3 

VANADIUM PENTOXIDE 1314-62-1 mg/m3 C(R)0.5 0.05 35 yes yes PAPRFC1 PAPRFC3 

VINYL ACETATE 108-05-4 ppm 10 yes yes PAPRFC2 PAPRFC4 

VINYL BENZENE 100-42-5 ppm 100 20 700 yes yes PAPRFC2 PAPRFC4 Styrene 

VINYL CHLORIDE 

(CHLOROETHYLENE) 

75-01-4 ppm 1 1 no no NA NA 

VINYLIDENE CHLORIDE 75-35-4 ppm 5 yes yes PAPRFC2 PAPRFC4 

VINYL TOLUENES, ALL 

ISOMERS 


WARFARIN (ISO) 81-81-2 mg/m3 0.1 0.1 100 no no PAPRFC1 PAPRFC3 

WELDING FUME mg/m3 5 no no PAPRFC1 PAPRFC3 

WOOD DUST (HARD WOOD) mg/m3 R 5 1 yes no PAPRFC1 PAPRFC3 

WOOD DUST (SOFT WOOD) mg/m3 R 5 5 yes no PAPRFC1 PAPRFC3 

XYLENE (ALL ISOMERS) ppm 100 100 yes yes PAPRFC2 PAPRFC4 

XYLIDINE, ALL ISOMERS 1300-73-8 ppm 5 0.5 50 no no PAPRFC2 PAPRFC4 

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Unit of 


YTTRIUM 7440-65-5 mg/m3 1 1 500 yes no PAPRFC1 PAPRFC3 

ZINC CHLORIDE, FUME 7646-85-7 mg/m3 1 1 50 yes yes PAPRFC1 PAPRFC3 

ZINC CHROMATES (INC. ZINC 

POTASSIUM CHROMATE) 

mg/m3 C0.1 0.01 no PAPRFC1 PAPRFC3 

ZINC DISTEARATE 557-05-1 mg/m3 R 5 yes yes PAPRFC1 PAPRFC3 

ZINC OXIDE FUME 1314-13-2 mg/m3 5 2 500 no no PAPRFC1 PAPRFC3 

ZIRCONIUM COMPOUNDS 

(AS Zr) 

7440-67-7 mg/m3 5 5 50 no yes PAPRFC1 PAPRFC3 

www.bullard.com

Americas: 

Bullard 

1898 Safety Way 

Cynthiana, KY 41031-9303 • USA 

Toll-free within USA: 877-BULLARD (285-5273) 

Tel: +1-859-234-6616 

Fax: +1-859-234-8987 

Europe: 

Bullard GmbH 

Lilienthalstrasse 12 

53424 Remagen • Germany 

Tel: +49-2642 999980 

Fax: +49-2642 9999829 


Asia-Pacific: 

Bullard Asia Pacific Pte. Ltd. 

LHK Building 

701, Sims Drive, #04-03 

Singapore 387383 

Tel: +65-6745-0556 

Fax: +65-6745-5176 

ISO 9001 

C e rtifi ed 

ISO 9001 

certified 

©2013 Bullard. All rights reserved. 

8131 (0313)

Respirator Selection Guide - Bullard

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