Document zQo45M1JkKGRx8L8MQkB6oB06

DEPARTMENT OF PUBLIC HEALTH OCCUPATIONAL HEALTH STANDARDS COMMISSION AIR CONTAMINANTS Filed with the Secretary of State on December 7, 1990 These rules take effect 15 days after filing with the Secretary of State (By authority conferred on the occupational health standards commission by section 24 of Act No. 154 of the Public Acts of 1974, as amended, being 408.1024 of the Michigan Compiled Laws) R 325.51101 Applicability; replacement of O.H. rules. Rule 1. (1) These rules do not apply to the following types of employment: (a) Agriculture. (b) Construction. (c) Domestic. (d) Mining. (2) These rules replace O.H. rules 2101, 2102, 2103, and 2104. R 325.51102 Definitions. Rule 2. As used in these rules: (a) "Ceiling" means the employee's exposure which shall not be exceeded during any part of the workday. If instantaneous monitoring is not feasible, the ceiling shall be assessed as a 15-minute, time-weighted average exposure which shall not be exceeded at any time over a working day. (b) "Permissible exposure limit (PEL)" means the maximum concentration to which an employee may be exposed averaged over an 8-hour period. (c) "Short-term exposure limit (STEL)" means the employee's 15-minute, time-weighted average exposure which shall not be exceeded at any time during a workday unless another time limit is specified in a parenthetical notation below the limit. Such exposures shall not occur more than 4 times during a workday and there shall be not less than 60 minutes between successive exposures at the STEL. If another time period is specified, the time-weighted average exposure over that time limit shall not be exceeded at any time during the workday. (d) "Time-weighted average (TWA)" means the employee's average airborne exposure in any 8-hour work shift of a 40-hour work week which shall not be exceeded. (e) The terms "substance," "air contaminant," and "material" are equivalent in meaning for purposes of these rules. R 325.51103 Exposure limits. Rule 3. An employee's exposure to any substance listed in tables G-1-A, G-2, or G-3 of these rules shall be limited in accordance with the requirements of the following provisions: (a) With respect to table G-1-A, all of the following provisions apply: 03/07/90 (i) An employee's exposure to any substance in table G-1-A under the transitional limits columns, the exposure limit of which is preceded by a C, shall at no time exceed the exposure limit given for that substance in table G-1-A under the transitional limits columns. (ii) An employee's exposure to any substance in table G-1-A under the transitional limits columns, the exposure limit of which is not preceded by a C, shall not exceed the 8-hour, time-weighted average given for that substance 2 in table G-1-A under the transitional limits columns in any 8-hour work shift of a 40-hour work week. (iii) An employee's exposure to any substance listed in table G-1-A shall not exceed the time-weighted average (TWA), short-term exposure limit (STEL) and ceiling limit specified for that substance in table G-1-A under the final rule limits columns. (iv) To prevent or reduce skin absorption, an employee's skin exposure to substances listed in table G-1-A with an X in one or both of the skin designation columns following the substance name shall be prevented or reduced to the extent necessary under the circumstances through the use of gloves, coveralls, goggles, or other appropriate personal protective equipment, engineering controls, or work practices. (b) With respect to table G-2, all of the following provisions apply: (i) Table G-2 is applicable for the transitional period and to the extent set forth in R 325.51106. (ii) An employee's exposure to any material listed in table G-2 in any 8hour work shift of a 40-hour work week shall not exceed the 8-hour, timeweighted average limit given for that material in table G-2. (iii) An employee's exposure to a material listed in table G-2 shall not exceed, at any time during an 8-hour shift, the acceptable ceiling concentration limit given for the material in the table, except for a period of time and up to a concentration that does not exceed the maximum duration and concentration allowed in the column under "acceptable maximum peak above the ceiling concentration for an 8-hour shift." For example, during an 8-hour work shift, an employee may be exposed to a concentration of substance A (with a 10 parts of contaminant per million parts of air (ppm) TWA, 25 ppm ceiling and 50 ppm peak) above 25 ppm (but not above 50 ppm) only for a maximum period of 10 minutes. Such exposure shall be compensated for by exposures to concentrations less than 10 ppm so that the cumulative exposure for the entire 8-hour work shift does not exceed a weighted average of 10 ppm. (iv) If a substance is preceded by S, an employer shall take the necessary precautions to prevent a person from absorbing a contaminant through his or her skin. (c) Table G-3 is applicable for the transitional period and to the extent set forth in R 325.51106. An employee's exposure to any substance listed in table G-3 in any 8-hour work shift of a 40-hour work week shall not exceed the 8-hour, time-weighted average limit given for that substance in the table. R 325.51104 Computation formulae. Rule 4. The computation formula which shall apply to employee exposure to more than 1 substance for which 8-hour, time-weighted averages are listed in table G-1-A, G-2, or G-3 in order to determine whether an employee is exposed over the regulatory limit is as follows: 3 (a) The cumulative exposure for an 8-hour work shift shall be computed as follows: E = (CaTa + CbTb + ... CnTn) a 8 Where: E is the equivalent exposure for the working shift. C is the concentration during any period of time T where the concentration remains constant. T is the duration in hours of the exposure at the concentration C. The value of E shall not exceed the 8-hour, time-weighted average specified in table G-1-A, G-2, or G-3 for the material involved. To illustrate the formula prescribed in this subdivision, assume that substance A has an 8-hour, time-weighted average limit of 100 ppm noted in table G-1-A. Assume that an employee is subject to the following exposure: Two hours' exposure at 150 ppm Two hours' exposure at 75 ppm Four hours' exposure at 50 ppm Substituting this information in the formula: (2x150 + 2x75 + 4x50) a 8 = 81.25 ppm Since 81.25 ppm is less than 100 ppm, the 8-hour, time-weighted average limit, the exposure is acceptable. (b) For a mixture of air contaminants, an employer shall compute the equivalent exposure as follows: Em = (C a L + C2 a L2) + ... (Cn a LJ Where: Em is the equivalent exposure for the mixture. C is the concentration of a particular contaminant. L is the exposure limit for that substance specified. The value of Em shall not exceed unity (1). To illustrate the formula prescribed in this subdivision, consider the following exposures: Material Substance B Substance C Substance D Actual concentration of 8-hour exposure (ppm) 500 45 40 8-hour TWA PEL (ppm) 1,000 200 200 Substituting in the formula: Em = 500 a 1,000 + 45 a 200 + 40 a 200 Em = 0.500 + 0.225 + 0.200 Em = 0.925 Since Em is less than unity (1), the exposure combination is within acceptable limits. R 325.51105 Methods of compliance. Rule 5. To achieve compliance with the provisions of R 325.51103 and R 325.51104, administrative or engineering controls shall first be determined and implemented when feasible. When such controls are not feasible to achieve full compliance, protective equipment or any other protective measures shall be used to keep the exposure of employees to air contaminants within the limits prescribed in these rules. Any equipment and technical measures used for this purpose shall be approved for each particular use by a competent industrial hygienist or other technically qualified person. When respirators are used, their use shall comply with the provisions of O.H. rule 3502: 4 respiratory protection. R 325.51106 Start-up dates; transitional provisions. Rule 6. (1) Start-up dates are as follows: (a) The permissible exposure limits specified in the final rule limits columns of table G-1-A shall be achieved by any reasonable combination of engineering controls, work practices, and personal protective equipment through December 30, 1993. (b) The permissible exposure limits specified in the final rule limits columns of table G-1-A shall be achieved by the methods of compliance specified in R 325.51105 effective December 31, 1993. (2) Transitional provisions are as follows: (a) The permissible exposure limits specified in the transitional limits column of tables G-1-A, G-2, and G-3 shall continue to be achieved by the methods of compliance specified in R 325.51105 through December 30, 1993. (b) The permissible exposure limits specified in tables G-2 and G-3 for substances mentioned in the final rule limits column of table G-1-A only by cross reference to table G-2 or G-3 shall remain in effect indefinitely and continue to be achieved by the methods of compliance specified in R 325.51105. (c) If any new or amended provisions or new or revised limits for any substance or substances are either administratively stayed or judicially stayed or vacated, then the existing provisions or limits for those substances specified in the transitional limits columns of table G-1-A, table G-2 or table G-3 shall remain in effect until such stay is lifted or, if the limit is vacated, shall remain in effect indefinitely. R 325.51107 Stay of enforcement. Rule 7. Enforcement of the limits are indefinitely stayed for the following substances until the United States department of labor, occupational safety and health administration (OSHA) publishes in the Federal Register a notice that a sampling and analytical technique is available: (a) Aluminum alkyls. (b) Ethylidine norbornene. (c) Hexafluoroacetone. (d) Mercury (alkyl compounds). (e) Oxygen difluoride. (f) Phenylphosphine. (g) Sulfur pentafluoride. R 325.51108 Tables. Rule 8. Tables G-1-A, G-2, and G-3 read as follows: 5 TABLE G-1-A. TRANSITIONAL LIMITS LIMITS FOR AIR CONTAMINANTS FINAL RULE LIMITS** PEL* TWA STELC Ceiling Substance CAS No.E ppmA mg/m3B Skin De signation ppmA mg/m3B ppmA mg/m3B ppmA mg/m3B Abate Acetyldehyde Acetic acid Acetic anhydride - 15 - - 15 - - - - 75-07-0 200 360 - 100 180 150 270 - - 64-19-7 10 25 - 10 25 - - -- 108-24-7 5 20 - - - - - 5 20 Acetone Acetonitrile 2-Acetylaminofluorine; see O.H. rule 2301(1) 67-64-1 75-05-8 53-96-3 1000 40 2400 70 - 750 40 1800 70 1000 60 2400 105 - - Acetylene dichloride; see 1,2-Dichloroethylene Acetylene tetrabromide Acetylsalicylic acid (Aspirin) Acrolein Acrylamide Acrylic acid Acrylonitrile; see R 325.51501 et seq. 79-27-6 50-78-2 107-02-8 79-06-1 79-10-7 107-31-1 1 - 0.1 - 14 0.25 0.3 - x - 1 - 0.1 - 10 14 5 0.25 0.03 30 0.3 - - 0.8 - - - Aldrin Allyl alcohol Allyl chloride Allyl glycidyl ether (AGE) Allyl propyl disulfide 309-00-2 107-18-6 107-05-1 106-92-3 2179-59-1 - 2 1 (C)10 2 0.25 5 3 (C)45 12 x x - - 0.25 - - - 2 5 4 10 - 1 3 2 6 -5 22 10 44 - 2 12 3 18 - - Skin De signation - x x x x - 6 Substance TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B alpha-Alumina Total dust Respirable fraction Aluminum (as AL) Metal Total dust Respirable fraction Pyro powders Welding Fumes*** Soluble salts Alkyls 4-Aminodiphenyl; see O.H. rule 2301(2) 2-Aminoethanol; see Ethanolamine 2-Aminopyridine Amitrole Ammonia Ammonium chloride fume Ammonium sulfamate Total dust Respirable fraction n-Amyl acetate sec-Amyl acetate Aniline and homologs Anisidine (o-, p-isomers) Antimony and compounds (as Sb) ANTU (alpha naphthylthiourea) 1344-28-1 7429-90-5 92-67-1 504-29-0 61-82-5 7664-41-7 12125-02-9 7773-06-0 628-63-7 626-38-0 62-53-3 29191-52-4 7440-36-0 86-88-4 - 15 -5 - 15 -5 ----- 0.5 50 - - 100 125 5 - 2 35 - 15 5 525 650 19 0.5 0.5 0.3 Skin De signation - - - x x - TWA ppmA mg/m3B - 10 -5 - 15 -5 -5 -5 -2 -2 0.5 - - 100 125 2 - 2 0.2 - 10 10 5 525 650 8 0.5 0.5 0.3 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin De signation - - -- - -- - - - -- - -- - -- - -- - -- - - -- - - --35 27 - 20 --------- - - - - - x x - 7 TRANSITIONAL LIMITS Substance Arsenic, organic compounds (as As) Arsenic, inorganic compounds (as As) see R 325.51601 et seq. Arsine Asbestos; see O.H. rule 2205 Atrazine Azinphos-methyl Baruim, soluble compounds (as Ba) Barium sulfate Total dust Respirable fraction Benomyl Total dust Respirable fraction Benzene; see R 325.77101 et seq. Benzidine; see O.H. rule 2301 (3) p-Benzoquinone; see Quinone Benzo(a)pyrene; see Coal tar pitch volatiles Benzoyl peroxide Benzyl chloride Beryllium and beryllium compounds (as Be) Biphenyl; see Diphenyl CAS No.E 7440-38-2 7440-38-2 7784-42-1 Varies 1912-24-9 86-50-0 7440-39-3 7727-43-7 17804-35-2 71-43-2 92-87-5 94-36-0 100-44-7 7440-41-7 PEL* ppmA mg/m3B - 0.5 Skin Designation - TWA ppmA mg/m3B - 0.5 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - - -- Skin Designation - 0.05 0.2 - 0.05 0.2 - - -- - -- 0.2 - 0.5 x - - 5 - - -- 0.2 - - - - 0.5 - - - - x - - 15 -5 - - 10 - - - - 5 - - -- - - 15 -5 - - 10 - - - - 5 - - -- - See table G-2 for the limits applicable in the operations or sectors excluded in R 325.77101D -5 - 15 - See table G-2 - 5 - - -1 5 - - -- See table G-2 - 8 Substance TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B Bismuth telluride, Undoped Total dust Respirable fraction Bismuth telluride, Se-doped Borates, tetra sodium salts Anhydrous Decahydrate Pentahydrate Boron oxide - Total dust Boron tribromide Boron Trifluoride Bromacil Bromine Bromine pentafluoride Bromoform Butadiene (1,3-Butadiene) Butane Butanethiol; see Butyl mercaptan 2-Butanone (Methyl ethyl ketone) 2-Butoxyethanol n-Butyl-acetate sec-Butyl acetate tert-Butyl acetate Butyl acrylate 1304-82-1 1330-43-4 1303-96-4 12179-04-3 1303-86-2 10294-33-4 7637-07-2 314-40-9 7726-95-6 7789-30-2 75-25-2 106-99-0 106-97-8 - 15 -5 -- (C)1 - 0.1 0.1 0.5 1000 - 15 (C)3 0.7 5 2200 - 78-93-3 111-76-2 123-86-4 105-46-4 540-88-5 141-32-2 200 50 150 200 200 - 590 240 710 950 950 - Skin Designation - x - - x - TWA ppmA mg/m3B - - 1 0.1 0.1 0.5 15 5 5 10 10 10 10 - 10 0.7 0.7 5 800 1900 200 25 150 200 200 10 590 120 710 950 950 55 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin Designation - - -- - -- - - -- - - 0.3 - 1000 - - 2 - 2200 - - 1 1 - - 10 3 - - 300 - 200 - 885 950 - - - - - - x - 9 TRANSITIONAL LIMITS Substance n-Butyl alcohol sec-Butyl alcohol tert-Butyl alcohol Butylamine tert-Butyl chromate (as CrO3) n-Butyl glycidyl ether (BGE) n-Butyl lactate Butyl mercaptan o-sec-Butylphenol p-tert-Butyltoluene Cadmium fume (as Cd) Cadmium dust (as Cd) Calcium carbonate Total dust Respirable fraction Calcium cyanamide Calcium hydroxide Calcium oxide Calcium silicate Total dust Respirable fraction Calcium sulfate Total dust Respirable fraction Camphor, synthetic CAS No.E 71-36-3 78-92-2 75-65-0 109-73-9 1189-85-1 2426-08-6 138-22-7 109-79-5 89-72-5 98-51-1 7440-43-9 7440-43-9 1317-65-3 156-62-7 1305-62-0 1305-78-8 1344-95-2 7778-18-9 76-22-2 PEL* ppmA mg/m3B Skin De signation 100 150 100 (C)5 300 450 300 (C)5 x - (C)0.1 50 270 x - -- - 0.5 1.5 - -- - 10 60 - See table G-2 See table G-2 - 15 -5 -- --5 - - 15 -5 - - 15 -5 -2 - - TWA ppmA mg/m3B - 100 100 25 5 0.5 5 10 - - - - 305 300 135 25 1.5 30 60 0.1 0.2 15 5 0.5 5 5 15 5 15 5 2 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - - 50 150 - - -- 150 450 - - - - 5 15 - - - 0.1 - - -- - - -- - - -- - - -- 20 120 - - - - - 0.3 - - - 0.6 Skin De signation x -x x x - - - -- - -- - -- - -- - -- - - - -- - -- - - - -- - -- - - -- - - 10 Substance Caprolactam Dust Vapor Captafol (DifolatanR) Captan Carbaryl (SevinR) Carbofuran (FuradanR) Carbon black Carbon dioxide Carbon disulfate Carbon monoxide Carbon tetrabromide Carbon tetrachloride Carbonyl fluoride Catechol (Pyrocatechol) Cellulose Total dust Respirable fraction TRANSITIONAL LIMITS PEL* CAS No.E ppmA mg/m3B Skin De signation 105-60-2 --- - 2425-06-1 - - - 133-06-2 -- - 63-25-2 -5 1563-66-2 - - - 1333-86-4 - 3.5 - 124-38-9 5000 9000 - 75-15-0 See table G-2 630-08-0 558-13-4 50 55 -- - 56-23-5 See table G-2 353-50-4 -- - 120-80-9 -- - 9004-34-6 - 15 5 - - Cesium hydroxide Chlordane Chlorinated camphene Chlorinated diphyenyl oxide Chlorine Chlorine dioxide Chlorine trifluoride 21351-79-1 57-74-9 8001-35-2 55720-99-5 7782-50-5 (C)1 0.5 0.5 0.5 (C)3 10049-04-4 0.1 0.3 7790-91-2 (C)0.1 (C)0.4 TRANSITIONAL LIMITS PEL* x x - TWA ppmA mg/m3B 5 - 10,000 4 35 0.1 2 2 5 1 20 0.1 5 5 0.1 3.5 18,000 12 40 1.4 12.6 5 20 - 0.5 0.1 - 15 5 2 0.5 0.5 0.5 1.5 0.3 - TWA FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin De signation - 10 30,000 12 0.3 5 - 3 40 54,000 36 4 15 - - 200 - 229 - - - -- - -- - - -- - - -- - 1 -- - - -- 1 3 -- 0.3 0.9 - - - - 0.1 0.4 FINAL RULE LIMITS** STELC Ceiling x x - x x - 11 Substance CAS No.E ppmA mg/m3B Chloroacetaldehyde 107-20-0 (C)1 (C)3 a-Chloroacetophenone (Phenacyl chloride) 532-27-4 0.05 0.3 Chloroacetyl chloride Chlorobenzene 79-04-9 108-90-7 -75 350 o-Chlorobenzylidene malonoitrile 2698-41-1 0.05 0.4 Chlorobromomethane 74-97-5 200 1050 2-Chloro-1,3-butadiene; see b-Chloroprene Chlorodifluoromethane Chlorodiphenyl (42% Chlorine) (PCB) 75-45-6 53469-21-9 - - 1 Chlorodiphenyl (54% Chlorine) (PCB) 11097-69-1 - 0.5 1-Chloro,2,3-epoxypropane; see Epichlorohydrin 2-Chloroethanol; see Ethylene chlorohydrin Chloroethylene; see Vinyl chloride Chloroform (Trichloromethane) 67-66-3 (C)50 (C)240 bis(Chloromethyl) ether; see O.H. Rule 2301(4) 542-88-1 Chloromethyl methyl ether; see O.H. rule 2301(8) 107-30-2 1-Chloro-1-nitropropane 600-25-9 20 100 Chloropentafluoroethane Chloropicrin 76-15-3 76-06-2 - 0.1 0.7 TRANSITIONAL LIMITS PEL* Skin De signation - x x - - ppmA mg/m3B - 0.5 0.5 75 - 200 - 0.3 0.2 350 1050 1000 - 3500 1 0.5 2 9.78 4 1000 0.1 10 6320 0.7 TWA ppmA - mg/m3B - ppmA 1 mg/m3B 3 Skin De signation - ---- - 0.05 - 0.4 - x - - - -- - -- - -- x x - - -- - - - -- - - -- - - -- FINAL RULE LIMITS** STELC Ceiling - Substance beta-Chloroprene o-Chlorostyrene o-Chlorotoluene 2-Chloro-6-trichloro-methyl pyridine Total dust Respirable fraction Chlorpyrifos Chromic acid and chromates (As CrO3) Chromium (II) compounds (as Cr) Chromium (III) compounds (as Cr) Chromium metal (as Cr) Chrysene; see Coal tar pitch volatiles Clopidol Total dust Respirable fraction Coal dust (less than 5% SiO2) Respirable quartz faction Coal dust (greater than or equal to 5% SiO2), Respirable fraction Coal tar pitch volatiles (benzene soluble fraction), anthracene, BaP, phenanthrene, acridine, crysene, pyrene Cobalt metal, dust, and fume (as Co) CAS No.E 126-99-8 2039-87-4 95-49-8 1929-82-4 2921-88-2 Varies with compound 7440-47-3 7440-47-3 7440-47-3 ppmA 25 - 12 mg/m3B 90 - Skin Designation x - ppmA 10 50 50 mg/m3B 35 285 250 ppmA 75 - mg/m3B 428 - ppmA - mg/m3B - Skin Designation x - 15 -5 - -- - See table G-2 15 - 5 - - -- - - 0.2 - - - - x - - - - - 0.1 - - 0.5 - 0.5 -1 - - - 0.5 - - - - - 0.5 - - - - 1 - - -- - - 2971-90-6 - - 15 -5 - See table G-3 See table G-3 - 15 - - - - 5 - - -- 2 - - -- - 0.1 - - - - - - 65996-93-2 0.2 7740-48-4 - 0.1 - 0.2 - 0.05 - - - - - 13 Substance TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B Cobalt carbonyl (as Co) 10210-68-1 Colbalt hydrocarbonyl (as Co) Coke oven emissions; see R 325.50101 et seq. 16842-03-8 _ Copper Fume (as Cu) Dusts and mists (as Cu) 7440-50-8 Cotton dust (raw) Crag herbicide (Sesone) Total dust Respirable fraction 136-78-7 Cresol, all isomers 1319-77-3 Crotonaldehyde 123-73-9 4170-30-3 Crufomate 299-86-5 Cumene 98-82-8 Cyanamide 420-04-2 Cyanides (as CN) Varies with compound Cyanogen 460-19-5 Cyanogen chloride 506-77-4 Cyclohexane 110-82-7 Cyclohexanol 108-93-0 Cyclohexanone 108-94-1 Cyclohexene 110-83-8 Cyclohexylamine 108-91-8 Cyclonite 121-82-4 TRANSITIONAL LIMITS --- - 5 2 50 - - 10 300 50 50 300 - 0.1 1 1 15 5 22 6 245 - 5 1050 200 200 1015 - PEL* Skin De signation - - x - x - - TWA ppmA mg/m3B - 0.1 - 0.1 - 5 2 50 - - 10 300 50 25 300 10 - 0.1 1 1 10 5 22 6 5 245 2 5 20 1050 200 100 1015 40 1.5 TWA FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - - -- - -- Skin De signation - - - - -- - -- - -- - - -- - -- - -- - -- - - -- - -- - -- - - -- - - -- - - 0.3 0.6 - - -- - - -- - - -- - - -- - - -- - - -- FINAL RULE LIMITS** STELC Ceiling - x - x - x x x Substance Cyclopentadiene Cyclopentane Cyhexatin 2,4-D (Dichlorylphenoxy- acetic acid) Decaborane Demeton (SystoxR) Dibutyl Phosphate Dichloroacetylene Dichlorodiphenyltri- chloroethane (DDT) Dichlorvos (DDVP) Diacetone alcohol (4-Hydroxy-4-methyl2-pentanone) 1,2-Diaminoethane; see Ethylenediamine Diazinon Diazomethane Diborane 2-N-Dibutylaminoethanol Dibutyl phosphate Dibutyl phthalate Dichloroacetylene o-Dichlorobenzene p-Dichlorobenzene Substance CAS No.E 542-92-7 287-92-3 13121-70-5 94-75-7 17702-41-9 8065-48-3 107-66-4 7572-29-4 50-29-3 62-73-7 ppmA 75 - 0.05 - 1 0.1 - 14 mg/m3B 200 - Skin De signation - 10 0.3 0.1 5 0.4 x x - 1x 1x ppmA 75 600 - 0.05 - 1 - - mg/m3B 200 1720 5 10 0.3 0.1 5 - 1 1 ppmA - 0.15 - - mg/m3B - 0.9 - - ppmA - - 0.1 - mg/m3B - Skin De signation - --x -x -0.4 - -x -x 123-42-2 50 240 50 240 333-41-5 334-88-3 - 0.2 0.4 19287-45-7 0.1 0.1 102-81-8 107-66-4 -15 84-74-2 7572-29-4 95-50-1 (C)50 5 (C)300 106-46-7 75 450 TRANSITIONAL LIMITS PEL* CAS No.E ppmA mg/m3B - Skin De signation - 0.2 0.1 2 1 75 0.1 0.4 0.1 14 5 5 450 TWA ppmA mg/m3B - - -- - - -- - - -- - - -- 2 10 - - - 110 675 - 0.1 50 - 0.4 300 - FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B x - Skin De signation 3,3'-Dichlorobenzidine; see O.H. rule 2301(5) Dichlorodifluoromethane 1,3-Dichloro-5,5-dimethyl hydantoin 1,1-Dichloroethane 1,2-Dichloroethylene Dichloroethyl ether Dichloromethane; see Methylene chloride Dichloromonofluoromethane 1,1-Dichloro-1-nitroethane 1,2-Dichloropropane; see Propylene dichloride 1,3-Dichloropropene 2,2-dichloropropionic acid Dichlorotrafluoroethane Dicrotophos Dicyclopentadiene Dicyclopentadienyl iron Total dust Respirable fraction Dieldrin Diethanolamine Diethylamine 2-Diethylaminoethanol 91-94-1 75-71-8 118-52-5 75-34-3 540-59-0 111-44-4 1000 4950 - 100 200 (C)15 0.2 400 790 (C)90 15 x 75-43-4 594-72-9 1000 (C)10 4200 (C)60 - 542-75-6 75-99-0 76-14-2 141-66-2 77-73-6 102-54-5 60-57-1 111-42-2 109-89-7 100-37-8 - 1000 - 25 10 7000 - 15 5 0.25 75 50 - x x 1000 - 100 200 5 4950 0.2 400 790 30 - - 10 - 0.4 60 - - 10 40 - - - 2 10 - -- 1 1 1000 5 3 10 10 5 6 7000 0.25 30 10 5 0.25 15 30 50 - 25 - - 75 - - - - - - - - - x - x x - x x Substance Diethylene triamine Diethyl ether; see Ethyl ether Diethyl ketone Diethyl phthalate Difluorodibromomethane Diglycidyl ether (DGE) Dihydroxybenzene; see Hydroquinone Diisobutyl ketone Diisopropylamine 4-Dimethylaminoazobenzene; see O.H. rule 2301(6) Dimethoxymethane; see Methylal Dimethyl acetamide Dimethylamine Dimethylaminobenzene; see Xylidine Dimethylaniline (N-Dimethyl-aniline) Dimethylbenzene; see Xylene Dimethyl-1,2-dibromo-2,2dichloroethyl phosphate Dimethylformamide 2,6-Dimethyl-4-heptanone; see Diisobutyl ketone 16 TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B 111-40-0 10 42 Skin De signation x TWA ppmA mg/m3B 14 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - - -- Skin De signation x 96-22-0 84-66-2 75-61-6 2238-07-5 - 100 (C)0.5 860 (C)2.8 - 200 705 - - -- - 5 - - -- 100 860 - - -- 0.1 0.5 - - -- - 108-83-8 108-18-9 60-11-7 50 290 5 20 x 25 150 - - -- 5 20 - - - - x 127-19-5 10 35 x 10 35 - - -- x 124-40-3 10 18 - 10 18 - - -- - 121-69-7 5 25 x 5 25 10 50 - - x 300-76-5 -3 - - 3 - - -- x 68-12-2 10 30 x 10 30 - - -- x TRANSITIONAL LIMITS PEL* TWA FINAL RULE LIMITS** STELC Ceiling Substance CAS No.E 1,1-Dimethylhydrazine Dimethylphthalate Dimethyl sulfate Dinitolmide (3,5-Dinitro-o-toluamide) Dinitrobenzene (all isomers) (alpha-) (meta-) (para-) 57-14-7 131-11-3 77-78-1 148-01-6 528-29-0 99-65-0 100-25-4 Dinitro-o-cresol Dinitrotoluene Dioxane (diethylene dioxide) Dioxathion (Delnav) Diphenyl (Biphenyl) Diphenylamine Diphenylmethane diisocyanate; see Methylene bisphenyl isocyanate Dipropylene glycol methyl ether Dipropyl ketone Diquat Di-sec octyl phthalate (Di-2-ethylhexylphthalate) Disulfiram Disulfoton 534-52-1 25321-14-6 123-91-1 78-34-2 92-52-4 122-39-4 34590-94-8 123-19-3 85-00-7 117-81-7 97-77-8 298-04-4 ppmA 0.5 - 1 - - 17 mg/m3B 1 5 5 Skin De signation x x -- ppmA 0.5 - 0.1 - 1x - mg/m3B 1 5 0.5 5 1 ppmA - - mg/m3B - - ppmA - mg/m3B - Skin De signation x x -- -- x - 100 - 0.2 - 0.2 1.5 360 - 1 10 x x x - - 0.2 - - - - - 1.5 - - - - 25 90 - - -- - 0.2 - - - - 0.2 1 - - -- - 10 - - - - x x x x - 100 600 x 100 600 150 900 - - x -- - 50 235 - - -- - -- - - 0.5 - - - - - -5 - - 5 - 10 - - - -- - - 2 - - -- - -- - - 0.1 - - - - x 18 Substance TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B 2,6-Di-tert-butyl-p-cresol Diuron Divinyl benzene Emery - Total dust Respirable fraction Endosulfan Endrin Epichlorohydrin EPN 1,2-Epoxypropane; see Propylene oxide 2,3-Epoxy-1-propanol; see Glycidol Ethanethiol; see Ethyl mercaptan Ethanolamine Ethion 2-Ethoxyethanol 2-Ethoxyethyl acetate (Cellosolve acetate) Ethyl acetate Ethyl acrylate Ethyl alcohol (Ethanol) Ethylamine Ethyl amyl ketone (5-Methyl-3-heptanone) Ethyl benzene 128-37-0 330-54-1 1321-74-0 112-62-9 115-29-7 72-20-8 106-89-8 2104-64-5 5 - 141-43-5 563-12-2 110-80-5 3 - 200 111-15-9 141-78-6 140-88-5 64-17-5 75-04-7 100 400 25 1000 10 541-85-5 100-41-4 TRANSITIONAL LIMITS 25 100 15 5 0.1 0.1 19 0.5 6 740 540 1400 100 1900 18 130 435 Skin De signation x x x x x x x - - TWA ppmA mg/m3B - 10 - 10 10 50 - 10 -5 - 0.1 - 0.1 28 - 0.5 3 - 200 100 400 5 1000 10 25 100 8 0.4 740 540 1400 20 1900 18 130 435 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - - -- - -- - -- - -- - -- - -- - -- - -- - -- Skin De signation x x x x 6 15 - -- -- --25 100 --- - - -- 125 545 - FINAL RULE LIMITS** - - - x x x x - - 19 Substance Ethyl bromide Ethyl butyl ketone (3-Heptanone) Ethyl chloride Ethyl ether Ethyl formate Ethyl mercaptan Ethyl silicate Ethylene chlorohydrin Ethylenediamine Ethylene dibromide Ethylene dichloride Ethylene glycol Ethylene glycol dinitrate Ethylene glycol methyl acetate; see Methyl cellosolve acetate Etyleneimine; see O.H. rule 2301(7) Ethylene oxide; see R 325.51151 et seq. Ethylidene chloride; see 1,1-Dichloroethane Ethylidene norbornene N-Ethylmorpholine Fenamiphos Fensulfothion (Dasanit) CAS No.E 74-96-4 106-35-4 75-00-3 60-29-7 109-94-4 75-08-1 78-10-4 107-07-3 107-15-3 106-93-4 107-06-2 107-21-1 628-96-6 PEL* ppmA mg/m3B 200 890 Skin De signation - 50 230 - 1000 400 100 (C)10 100 5 2600 1200 300 (C)25 850 16 x 10 25 - See table G-2 See table G-2 (C)0.2 (C)1 x 151-56-4 75-21-8 16219-75-3 100-74-3 22224-92-6 115-90-2 TRANSITIONAL LIMITS -20 94 --- PEL* x - TWA ppmA mg/m3B 200 890 50 1000 400 100 0.5 10 - 10 230 2600 1200 300 1 85 25 14 --- -5 23 - 0.1 - 0.1 TWA STELC ppmA mg/m3B 250 1100 Ceiling ppmA mg/m3B -- Skin De signation - - -- - -- - 500 1500 - -- - -- - -- - -1 - -- See table G-2 2 8- - - 50 - 0.1 - 3 - 125 - x - x - - 5 25 - - -- - - -- - - -- FINAL RULE LIMITS** STELC Ceiling x x - 20 Substance CAS No.E Fenthion 55-38-9 Ferbam Total dust 14484-64-1 Ferrovanadium dust 12604-58-9 Fluorides (as F) Varies with compound Fluorine 7782-41-4 Fluorotrichloromethane (Trichlorofluoromethane) 75-69-4 Fonofos 994-22-9 Formaldehyde 50-00-0 Formamide 75-12-7 Formic acid 64-18-6 Furfural 98-01-1 Furfuryl alcohol 98-00-0 Gasoline 8006-61-9 Germanium tetrahydride 7782-65-2 Glutaraldehyde 111-30-8 Glycerin (mist) Total dust Respirable fraction 56-81-5 Glycidol 556-52-5 Glycol monoethyl ether; see 2-Ethoxyethanol Grain dust (oat, wheat, barley) Graphite, natural respirable dust 7782-42-5 TRANSITIONAL LIMITS Substance CAS No.E ppmA - - mg/m3B - Skin Designation - 15 1 2.5 - 0.1 0.2 - 1000 5600 - -- - See table G-2 -59 5 20 50 200 x - -- - -- - -- - 15 -5 50 150 - -- - See table G-3 PEL* ppmA mg/m3B Skin Designation ppmA mg/m3B - 0.2 - 10 -1 - 2.5 0.1 - 0.2 - 0.1 20 5 2 10 300 0.2 - 25 30 9 8 40 900 0.6 - 10 5 75 - 10 - 2.5 TWA ppmA mg/m3B ppmA - - mg/m3B - 3 - ppmA - mg/m3B - Skin Designation x ---- - - -- - - 1000 - -- See table G-2 30 45 - - -- - -- 15 60 - 500 1500 - - -- - - 0.2 - 5600 - - 0.8 - x x x - - - -- - -- - - - -- - - - -- FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - Skin Designation Graphite, synthetic Total dust Respirable fraction - 15 -5 GuthionR; see Azinphos methyl Gypsum Total dust Respirable fraction 13397-24-5 - 15 -5 Hafnium 7440-58-6 - 0.5 Heptachlor 76-44-8 - 0.5 Heptane (n-Heptane) 142-82-5 500 2000 Hexachlorobutadiene Hexachlorocyclopentadiene 87-68-3 77-47-4 --- Hexachloroethane 67-72-1 1 10 Hexachloronaphthalene 1335-87-1 - 0.2 Hexafluoroacetone 684-16-2 -- n-Hexane Hexane isomers 110-54-3 500 1800 Varies with compound - - 2-Hexanone (Methyl n-butyl ketone) 591-78-6 100 410 Hexone (Methyl isobutyl ketone) 108-10-1 100 410 sec-Hexyl acetate 108-84-9 50 300 Hexylene glycol 107-41-5 -- Hydrazine 302-01-2 1 1.3 Hydrogenated terphenyls 61788-32-7 - - Hydrogen bromide 10035-10-6 3 10 21 - x x x - x - - 10 - - - - 5 - - -- 400 - 0.01 1 - 0.1 50 500 15 5 0.5 0.5 1600 0.02 0.1 10 0.2 0.7 180 1800 500 0.24 - 1000 - 2000 3600 - 5 20 - - - 50 205 75 300 - 50 300 - - - - - - - 25 0.1 0.1 - -- 0.5 5 - - - - -- -3 - 125 - 10 - x x x x - x - 22 TRANSITIONAL LIMITS PEL* Substance CAS No.E ppmA mg/m3B Skin De signation Hydrogen chloride 7647-01-0 (C)5 (C)7 - Hydrogen cyanide 74-90-8 10 11 x Hydrogen fluoride (as F) 7664-39-3 See table G-2 Hydrogen peroxide 7722-84-1 1 1.4 - Hydrogen selenide (as Se) 7783-07-5 0.05 0.2 - Hydrogen sulfide 7783-06-4 See table G-2 Hydroquinone 123-31-9 -2 - 2-Hydroxypropyl acrylate 999-61-1 -- - Indene 95-13-6 10 45 - Indium and compounds (as In) 7440-74-6 - 0.1 - Iodine 7553-56-2 (C)0.1 (C)1 - Iodoform 75-47-8 -- - Iron oxide fume 1309-37-1 - 10 - Iron pentacarbonyl (as Fe) 13463-40-6 - - - Iron salts (soluble) (as Fe) Varies with compound - 1 - Isoamyl acetate 123-92-2 100 525 - Isoamyl alcohol (primary and secondary) 123-51-3 100 360 - Isobutyl acetate 110-19-0 150 700 - Isobutyl alcohol 78-83-1 100 300 - Isooctyl alcohol 26952-21-6 - - - Isophorone 78-59-1 25 140 - Isophorone diisocyanate 4098-71-9 - - - 2-Isopropoxyethanol 109-59-1 -- - TRANSITIONAL LIMITS TWA ppmA mg/m3B 3 1 0.05 10 0.5 10 - 0.6 - 0.1 - 100 100 150 50 50 4 0.005 25 1.4 0.2 14 2 3 45 0.1 - 10 10 0.8 1 525 360 700 150 270 23 105 FINAL RULE LIMITS** STEL C Ceiling ppmA mg/m3B ppmA mg/m3B 4.7 6 15 - 0.2 5 - 21 - 1.6 5 - 0.1 - 7 - 1 - Skin De signation x x - - - -- - -- - 125 450 - - -- - -- - -- - -- 0.02 - - - -FINAL RULE LIMITS** - x x - 23 Substance CAS No.E PEL* ppmA mg/m3B Isopropyl acetate 108-21-4 250 950 Isopropyl alcohol Isopropylamine 67-63-0 75-31-0 400 980 5 12 N-Isopropylaniline Isopropyl ether 768-52-5 108-20-3 -- 500 2100 Isopropyl glycidyl ether (IGE) Kaolin Total dust Respirable fraction 4016-14-2 _ 50 240 - 15 -5 Ketene Lead inorganic (as Pb); see R 325.51901 et seq. 463-51-4 7439-92-1 0.5 0.9 -- Limestone Total dust Respirable fraction 1317-65-3 - 15 -5 Lindane Lithium hydride L.P.G. (Liquified petroleum gas) 58-89-9 7580-67-8 68476-85-7 - 1000 0.5 0.025 1800 Magnesite Total dust Respirable fraction 546-93-0 - 15 -5 Magnesium oxide fume Total particulate 1309-48-4 - 15 Malathion Total dust Maleic anhydride 121-75-5 108-31-6 0.25 15 1 Manganese compounds (as Mn) 7439-96-5 - (C)5 Manganese fume (as Mn) 7439-96-5 - (C)5 TRANSITIONAL LIMITS PEL* Skin Designation - - x - - - x 0.25 - TWA ppmA mg/m3B 250 950 400 980 5 12 2 10 500 2100 50 240 - 10 -5 0.5 0.9 -- - - - 1000 15 5 0.5 0.025 1800 - 15 -5 - 10 - 10 1- -- -1 TWA STELC ppmA mg/m3B 310 1185 500 1225 10 24 --75 360 - 1.5 - - 3 - Ceiling ppmA mg/m3B ------- Skin Designation x - --- --- - - - - -- - -- - - -- - - -- - -- x - - - -- - -- - - -- - - -- - - -- - - -5 - 3 -- FINAL RULE LIMITS** STELC Ceiling - - x - Substance Manganese cyclopentadienyl tricarbonyl (as Mn) Manganese tetroxide (as Mn) Marble Total dust Respirable fraction Mercury (aryl and inorganic compounds) (as Hg) Mercury (organo) alkyl compounds (as Hg) Mercury (vapor) (as Hg) Mesityl oxide Methacrylic acid Methanethiol; see Methyl mercaptan Methomyl (Lannate) Methoxychlor Total dust 2-Methoxyethanol; see Methyl cellosolve 4-Methoxyphenol Methyl acetate Methyl acetylene (Propyne) Methyl acetylene-propadiene mixture (MAPP) Methyl acrylate Methylacrylonitrile CAS No.E 12079-65-1 1317-35-7 1317-65-3 7439-97-6 7439-97-6 7439-97-6 141-79-7 79-41-4 ppmA 24 mg/m3B Skin De signation ppmA --- - 15 -5 - - See table G-2 See table G-2 See table G-2 25 100 - -- - - - - 15 20 mg/m3B 0.1 1 15 5 - 0.01 0.05 60 70 ppmA - - - 25 - mg/m3B - - 0.03 - 100 - ppmA mg/m3B Skin De signation --- --- - 0.1 ----- x - - x x x x 16752-77-5 - - 72-43-5 - 15 - - 2.5 - - - - 10 - - - - - 150-76-5 -- - - 5 - - -- 79-20-9 200 610 - 200 610 250 760 - - 74-99-7 1000 1650 - 1000 1650 - - -- - 1000 1800 - 1000 1800 1250 2250 - - 96-33-3 10 35 x 10 35 - - -- 126-98-7 -- - 1 3 - - -- - x x 25 Substance Methylal (Dimethoxymethane) Methyl alcohol Methylamine Methyl amyl alcohol; see Methyl isobutyl carbinol Methyl n-amyl ketone Methyl bromide Methyl butyl ketone; see 2-Hexanone Methyl cellosolve (2-Methoxyethanol) Methyl cellosolve acetate (2-Methoxyethyl acetate) Methyl chloride Methyl chloroform (1,1,1-Trichloroethane) Methyl 2-cyanoacrylate Methylcyclohexane Methylcyclohexanol o-Methylcyclohexanone Methylcyclopentadienyl manganese tricarbonyl (as Mn) Methyl demeton 4,4'-Methylene bis (2-chloraniline) (MBOCA) Methylene bis (4-cyclohexylisocyanate) TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B Skin De signation 109-87-5 67-56-1 74-89-5 1000 200 10 3100 260 12 - 110-43-0 74-83-9 100 (C)20 465 (C)80 x 109-86-4 25 80 x 110-49-6 74-87-3 25 120 x See table G-2 71-55-6 137-05-3 108-87-2 25639-42-3 583-60-8 350 - 500 100 100 1900 - 2000 470 460 x 12108-13-3 - - - 8022-00-2 - - 101-14-4 -- - 5124-30-1 TRANSITIONAL LIMITS - - - TWA ppmA mg/m3B 1000 200 10 3100 260 12 100 5 465 20 25 25 50 350 2 400 50 50 - - 0.02 - 80 120 105 1900 8 1600 235 230 0.2 0.5 0.22 - FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin De signation 250 - 325 - - - x - - - -- - -- x - -- - 100 450 4 75 - 210 2450 16 345 - - - -- - -- -- - - 0.01 FINAL RULE LIMITS** - - - - 0.11 x x x x x x - Substance Methylene chloride Methyl ethyl ketone (MEK); see 2-Butanone Methyl ethyl ketone peroxide (MEKP) Methyl formate Methyl hydrazine (Mono methyl hydrazine) Methyl iodide Methyl isoamyl ketone Methyl isobutyl carbinol Methyl isobutyl ketone; see Hexone Methyl isocyanate (MIC) Methyl isopropyl ketone Methyl mercaptan Methyl methacrylate Methyl parathion Methyl propyl ketone; see 2-Pentanone Methyl silicate alpha-Methyl styrene Methylene bisphenyl isocyanate (MDI) Metribuzin Mica; see Silicates CAS No.E 75-09-2 26 PEL* ppmA mg/m3B Skin De signation See table G-2 TWA ppmA mg/m3B STELC ppmA mg/m3B Ceiling ppmA mg/m3B See table G-2 Skin De signation 1338-23-4 107-31-3 60-34-4 74-88-4 110-12-3 108-11-2 - 100 (C)0.2 250 (C)0.35 5 100 25 28 475 100 x x x 624-83-9 563-80-4 74-93-1 80-62-6 298-00-0 0.02 (C)10 100 - 0.05 - (C)20 410 - x - - 681-84-5 98-83-9 101-68-8 21087-64-9 5 (C)100 30 (C)480 (C)0.02 - (C)0.2 - - - - 100 - 2 50 25 250 - 10 240 100 150 - 40 375 - 165 0.7 - 0.2 - 5 0.35 - x x x 0.02 0.05 - - -- 200 705 - - -- 0.5 1 - - -- 100 410 - - -- - 0.2 - - - - x - x 1 6 - - 5 30 50 240 100 485 - - - - - - 0.02 0.2 - 5 - - -- - - TRANSITIONAL LIMITS PEL* TWA FINAL RULE LIMITS** STELC Ceiling 27 Substance CAS No.E ppmA mg/m3B Molybdemun (as Mo) Soluble compounds Insoluble compounds Total dust Monocrotophos (AzodrinR) Monomethyl aniline Morpholine Naphtha (Coal tar) Naphthalene alpha-Naphthylamine; see O.H. rule 2301(10) beta-Naphthylamine; see O.H. rule 2301(11) Nickel carbonyl (as Ni) Nickel, metal and insoluble compounds (as Ni) Nickel, soluble compounds (as Ni) Nicotine Nitric acid Nitric oxide p-Nitroaniline Nitrobenzene p-Nitrochlorobenzene 4-Nitrodiphenyl; see O.H. rule 2301(12) Nitroethane Substance 7439-98-7 6923-22-4 100-61-8 110-91-8 8030-30-6 91-20-3 134-32-7 - 2 20 100 10 5 15 9 70 400 50 91-59-8 13463-39-3 0.001 0.007 7440-02-0 - 1 7440-02-0 - 1 54-11-5 - 0.5 7697-37-2 2 5 10102-43-9 25 30 100-01-6 16 98-95-3 15 100-00-5 - 1 92-93-3 79-24-3 TRANSITIONAL LIMITS CAS No.E 100 310 PEL* ppmA mg/m3B Nitrogen dioxide 10102-44-0 (C)5 (C)9 Skin De signation x x - x x x x - Skin Designation - ppmA mg/m3B 0.5 20 100 10 5 10 0.25 2 70 400 50 0.001 0.007 -1 - 0.1 - 0.5 25 25 30 -3 15 -1 100 310 TWA ppmA mg/m3B -- ppmA 30 15 mg/m3B 105 75 ppmA mg/m3B Skin De signation -------- x x - - - -- - - -- - - -- - -4 10 - - - -- - -- - -- - -- - - x x x x - - -- FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B 1 1.8 - - - Skin Designation - Nitrogen trifluoride Nitroglycerin Nitromethane 1-Nitropropane 2-Nitropropane N-Nitrosodimethylamine; see O.H. rule 2301(13) Nitrotoluene o-isomer m-isomer p-isomer Nitrotrichloromethane; see Chloropicrin Nonane Octachloronaphthalene Octane Oil mist, mineral Osmium tetroxide (as Os) Oxalic acid Oxygen difluoride Ozone Paraffin wax fume Paraquat, respirable dust Parathion 7783-54-2 55-63-0 75-52-5 108-03-2 79-46-9 62-75-9 10 (C)0.2 100 25 25 29 (C)2 250 90 90 88-72-2; 99-08-1; 99-99-0 5 30 28 x - x 111-84-2 2234-13-1 111-65-9 8012-95-1 20816-12-0 144-62-7 7783-41-7 10028-15-6 8002-74-2 1910-42-5 2074-50-2 4685-14-7 56-38-2 500 0.05 0.1 - - 0.1 2350 5 0.002 1 0.1 0.2 0.5 - 0.1 x x x Substance Particulates not otherwise regulated Total dust Respirable fraction TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B Skin Designation - - - 15 - - -5 - 10 - 100 25 10 29 250 90 35 2 11 200 300 - 0.1 - 1050 0.1 1450 5 0.002 1 - 0.2 2 0.1 - 0.1 TWA ppmA mg/m3B - 15 -5 - -- - 0.1 - - -- - -- - -- - x - - - -- x 375 0.3 - 0.3 1800 0.006 2 - 0.6 - 0.05 - - 0.1 - x x - - -- x FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin Designation - - -- - -- - 29 Pentaborane Pentachloronaphthalene Pentachlorophenol Pentaerylthritol Total dust Respirable fraction Pentane 2-Pentanone (Methyl propyl ketone) Perchloroethylene (Tetrachloroethylene) 19624-22-7 1321-64-8 87-86-5 115-77-5 109-66-0 107-87-9 127-18-4 0.005 - 0.01 0.5 0.5 x x - 1000 15 5 2950 - - 200 700 - See table G-2 Perchloromethyl mercaptan Perchloryl fluoride Perlite Total dust Respirable fraction Petroleum distillates (Naphtha) Phenol 594-42-3 7616-94-6 _ 108-95-2 0.1 3 500 5 0.8 13.5 15 5 2000 19 - x Phenothiazine p-Phenylene diamine Phenyl ether, vapor Phenyl ether-biphenyl mixture, vapor Phenylethylene; see Styrene 92-84-2 106-50-3 101-84-8 - -- 0.1 17 17 x - - TRANSITIONAL LIMITS PEL* Substance CAS No.E ppmA mg/m3B Skin Designation Phenyl glycidyl ether (PGE) Phenylhydrazine 122-60-1 100-63-0 10 60 5 22 x Phenyl mercaptan Phenylphosphine Phorate 108-98-5 638-21-1 298-02-2 ---- - 0.005 - 600 200 25 0.1 3 400 5 - 1 1 0.01 0.5 0.5 10 5 1800 700 170 0.8 14 15 5 1600 19 5 0.1 7 7 TWA ppmA mg/m3B 1 5 0.5 - 6 20 2 0.05 0.015 - 750 250 - 6 - - 0.03 - 2250 875 28 - - - - - - - - - - - - - - x x - - - x x x - - FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - - -- 10 45 - - - - -- - - 0.05 0.25 - 0.2 - - Skin Designation x x Phosdrin (MevinphosR) Phosgene (Carbonyl chloride) Phosphine Phosphoric acid Phosphorus (yellow) Phosphorus oxychloride Phosphorus pentachloride Phosphorus pentasulfide Phosphorus trichloride Phthalic anhydride m-Phthalodinitrile Picloram Total dust Respirable fraction Picric acid Piperazine dihydrochloride Pindone (2-Pivalyl-1,3indandione) Plaster of Paris Total dust Respirable fraction Substance Platinum (as Pt) Metal Soluble salts Portland cement Total dust Respirable fraction Potassium hydroxide Propane Propargyl alcohol 30 7786-34-7 75-44-5 7803-51-2 7664-38-2 7723-14-0 10025-87-3 10026-13-8 1314-80-3 7719-12-2 85-44-9 626-17-5 1918-02-1 88-89-1 142-64-3 - 0.1 0.1 0.4 0.3 0.4 -1 - 0.1 -- -1 -1 0.5 3 2 12 -- - 15 -5 - 0.1 -- x - x - 83-26-1 - 0.1 - 26499-65-0 - 15 -5 - TRANSITIONAL LIMITS PEL* CAS No.E ppmA mg/m3B Skin Designation 7440-06-4 -- - 0.002 - 65997-15-1 See table G-3 See table G-3 1310-58-3 74-98-6 - 1000 1800 - 107-19-7 -- - - 0.1 0.1 0.4 0.3 0.4 -1 - 0.1 0.1 0.6 -1 -1 0.2 1.5 16 -5 - 10 -5 - 0.1 -5 - 0.1 - 15 -5 TWA ppmA mg/m3B - - - 1000 1 1 0.002 10 5 1800 2 - 0.3 -- 11 -3 ----3 0.5 3 --- - - x - - - -- - -- - - -- - - -- x - - - -- - - - -- - -- FINAL RULE LIMITS** STEL C Ceiling ppmA mg/m3B ppmA mg/m3B - Skin Designation - - -- - -- - - - -- - -- - - -2 - - -- - - -- - - x 31 beta-Propriolactone; see O.H. rule 2301(14) 57-57-8 Propionic acid 79-09-4 Propoxur (Baygon) 114-26-1 n-Propyl acetate 109-60-4 n-Propyl alcohol 71-23-8 n-Propyl nitrate 627-13-4 Propylene dichloride 78-87-5 Propylene glycol dinitrate 6423-43-4 Propylene glycol monomethyl ether 107-98-2 Propylene imine 75-55-8 Propylene oxide 75-56-9 Propyne; see Methyl acetylene Pyrethrum 8003-34-7 Pyridine 110-86-1 Quinone 106-51-4 Resorcinol 108-46-3 TRANSITIONAL LIMITS Substance CAS No.E - 200 200 25 75 - - 2 100 840 500 110 350 - 5 240 5 0.1 - 5 15 0.4 - PEL* ppmA mg/m3B Rhodium (as Rh), metal fume and insoluble compounds Rhodium (as Rh), soluble compounds Ronnel Rosin core solder pyrolysis products, as formaldehyde Rotenone 7440-16-6 7440-16-6 299-84-3 83-79-4 0.1 - 0.001 - 15 --5 x - - Skin De signation - 10 - 200 200 25 75 0.05 100 2 20 30 0.5 840 500 105 350 0.3 360 5 50 5 0.1 10 5 15 0.4 45 TWA ppmA mg/m3B 0.1 - 0.001 - 10 - 0.1 -5 250 250 40 110 - 150 - 1050 625 170 510 - 540 - - - - - - x - - - -- - - -- - - -20 90 - - FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B - Skin De signation - - -- - -- - - -- - -- - - Rouge Total dust Respirable fraction Selenium compounds (as Se) Selenium hexafluoride (as Se) Silica, amorphous, precipitated and gel Silica, amorphous, diatomaceous earth, containing less than 1% crystalline silica Silica, crystalline cristobalite (as quartz) respirable dust 7782-49-2 7783-79-1 112926-00-8 61790-53-2 14464-46-1 32 - 0.05 15 5 0.2 0.4 - - See table G-3 See table G-3 See table G-3 Silica, crystalline quartz (as quartz), respirable dust Silica, crystalline tripoli (as quartz), respirable dust Silica, crystalline tridymite (as quartz), respirable dust Silica, fused, respirable dust 14808-60-7 1317-95-9 15468-32-3 60676-86-0 See table G-3 See table G-3 See table G-3 See table G-3 TRANSITIONAL LIMITS PEL* Substance CAS No.E ppmA mg/m3B Skin De signation Silicates (less than 1% crystalline silica Mica (respirable dust) 12001-26-2 See table G-3 Soapstone, total dust Soapstone, respirable dust Talc (containing asbestos); use asbestos limit - See table G-3 See table G-3 See table G-3 Talc (containing no asbestos), respirable dust 14807-96-6 See table G-3 Tremolite See table G-3 - 0.05 10 5 0.2 0.4 -6 -6 - 0.05 - 0.1 - 0.1 - 0.05 - 0.1 TWA ppmA mg/m3B -3 -6 -3 -2 - - -- - -- - -- - - -- - -- - - - - -- - - - -- - - - -- - - -- -- FINAL RULE LIMITS** - - STELC ppmA mg/m3B Ceiling ppmA mg/m3B Skin De signation - -- -- -- O.H. rule 2205 - -- O.H. rule 2205 - - - - Silicon Total dust Respirable fraction Silicon carbide Total dust Respirable fraction Silicon tetrahydride Silver, metal and soluble compounds (as Ag) Soapstone; see Silicates Sodium azide (as HN3) (as NaN3) Sodium bisulfite Sodium fluoroacetate Sodium hydroxide Sodium metabisulfite 7440-21-3 409-21-2 7803-62-5 7440-22-4 26628-22-8 7631-90-5 62-74-8 1310-73-2 7681-57-4 - 15 -5 - 15 -5 -- - 0.01 33 - - - ---- 0.05 -2 -- x - - 10 - - - - 5 - - -- - 10 - - - - 5 - - -5 7 - - -- - 0.01 - - -- - - - - 0.1 - - - - - - 0.3 - 5 - - -- - 0.05 - 0.15 - - - - - - -2 - 5 - - -- - - - x x x - 34 Substance Starch Total dust Respirable fraction Stibine Stoddard solvent Strychnine Styrene Subtilisins (Proteolytic enzymes) TRANSITIONAL LIMITS CAS No.E 9005-25-8 7803-52-3 8052-41-3 57-24-9 100-42-5 9014-01-1 PEL* ppmA mg/m3B Skin Designation - 0.1 500 - - 15 5- 0.5 - 2900 - 0.15 - See table G-2 -- Sucrose Total dust Respirable fraction Sulfur dioxide Sulfur hexafluoride Sulfuric acid Sulfur monochloride Sulfur pentafluoride Sulfur tetrafluoride Sulfuryl fluoride Sulprofos SystoxR; see Demeton 2,4,5-T Talc; see Silicates Tantalum, metal and oxide dust TEDP (Sulfotep) 57-50-1 7446-09-5 2551-62-4 7664-93-9 10025-67-9 5714-22-7 7783-60-0 2699-79-8 35400-43-2 5 1000 - 1 0.025 5 - 15 5 13 6000 1 6 0.25 - 20 - 93-76-5 - 10 7440-25-7 3689-24-5 -5 - 0.2 - - x TWA ppmA mg/m3B - 0.1 100 50 - 15 5 0.5 525 0.15 215 - - 2 1000 5 - 15 5 5 6000 1 - 20 1 - 10 -5 - 0.2 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin Designation - 100 - - - - - 425 0.00006 (60 min.) - - - - - -- - -- 5 10 - - - - -- - - -- - - 16 - - 0.01 0.1 - - 0.1 0.4 10 40 - - - - -- - - - -- - - - -- - -- x 35 Substance Tellurium and compounds (as Te) Tellurium hexafluoride (as Te) Temephos Total dust Respirable fraction TEPP Terphenyls 1,1,1,2-Tetrachloro-2, 2-difluorethane 1,1,2,2-Tetrachloro-1, 2-difluoroethane 1,1,2,2-Tetachloroethane Tetrachloroethylene; see Perchloroethylene Tetrachloromethane; see Carbon tetrachloride Tetrachloronaphthalene Tetraethyl lead (as Pb) Tetrahydrofuran Tetramethyl lead (as Pb) Tetramethyl succinonitrile Tetranitromethane Tetrasodium pyrophosphate Tetryl (2,4,6-Trinitrophenyl-methyl-nitramine) TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B 13494-80-9 7783-80-4 3383-96-8 107-49-3 26140-60-3 - 0.02 (C)1 0.1 0.2 15 5 0.05 (C)9 76-11-9 500 4170 76-12-0 79-34-5 500 4170 5 35 1335-88-2 78-00-2 109-99-9 75-74-1 3333-52-6 509-14-8 7722-88-5 479-45-8 - 200 0.5 1 - - 2 0.075 590 0.075 3 8 - 1.5 Skin De signation - x - - x x x x x x TWA ppmA mg/m3B - 0.02 - 500 500 1 0.1 0.2 10 5 0.05 - 4170 4170 7 - 200 0.5 1 - - 2 0.075 590 0.075 3 8 5 1.5 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin De signation - - -- - - - -- - - -- - -- - -- - 0.5 5 - x - - - -- - - - -- - -- x 250 - - 735 - - - - - - x x x x - x 36 TRANSITIONAL LIMITS PEL* Substance CAS No.E ppmA mg/m3B Skin De signation Thallium, soluble compounds (as Tl) 7440-28-0 - 0.1 x 4,4'-Thiobis (6-tert, Butylm-cresol) Total dust Respirable fraction 96-69-5 - 15 -5 - Thioglycolic acid 68-11-1 -- - Thionyl chloride 7719-09-7 - - - Thiram 137-26-8 -5 - Tin, inorganic compounds (except oxides) (as Sn) 7440-31-5 - 2 - Tin, organic compounds (as Sn) 7440-31-5 - 0.1 - Tin oxide (as Sn) 21651-19-4 - - - Titanium dioxide Total dust 13463-67-7 - 15 - Toluene 108-88-3 See table G-2 Toluene-2,4-diioscyanate (TDI) 584-84-9 (C)0.02 (C)0.14 - m-Toluidine 108-44-1 -- - 0-Toluidine 95-53-4 5 22 x p-Toluidine 106-49-0 -- - Toxaphene; see Chlorinated camphene Tremolite; see Silicates Tributyl phosphate 126-73-8 -5 - Trichloroacetic acid 76-03-9 -- - 1,2,4-Trichlorobenzene 120-82-1 -- - TWA ppmA mg/m3B - 0.1 - 1 - - - - 100 0.005 2 5 2 10 5 4 5 2 0.1 2 10 375 0.04 9 22 9 0.2 1 - 2.5 7 - FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin De signation - - -- x - - - 150 0.02 - - - - 560 0.15 - - 1 - - - - 5 - - - - x - - x - x x x - - -- - -- - 5 40 - 37 Substance 1,1,1-Trichloroethane; see Methyl chloroform 1,1,2-Trichloroethane Trichloroethylene Trichloromethane; see Chloroform Trichloronaphthalene 1,2,3-Trichloropropane 1,1,2-Trichloro-1,2, 2-trifluoroethane Triethylamine Trifluorobromomethane Trimellitic anhydride Trimethylamine Trimethyl benzene Trimethyl phosphite 2,4,6-Trinitrophenyl; see Picric acid 2,4,6-Trinitrophenylmethyl nitramine; see Tetryl 2,4,6-Trinitrotoluene (TNT) Triorthocresyl phosphate Triphenyl amine Triphenyl phosphate Tungsten (as W) Insoluble compounds Soluble compounds Turpentine TRANSITIONAL LIMITS CAS No.E 79-00-5 79-01-6 1321-65-9 96-18-4 76-13-1 121-77-8 75-63-8 552-30-7 75-50-3 25551-13-7 121-45-9 118-96-7 78-30-8 603-34-9 115-86-6 7440-33-7 8006-64-2 TRANSITIONAL LIMITS PEL* ppmA mg/m3B Skin De signation 10 45 x See table G-2 50 1000 25 1000 25 - 5 300 7600 100 6100 - 125 - x - - - - 100 1.5 0.1 3 5 1 560 x - - TWA ppmA mg/m3B 10 45 50 270 - 10 1000 10 1000 0.005 10 25 2 5 60 7600 40 6100 0.04 24 125 10 - - 100 0.5 0.1 5 3 5 1 560 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B Skin De signation - 200 1080 - 1250 15 15 - - 9500 60 36 - - - - - - - x - x - - - -- -- -- -- - 10 - 3- -- FINAL RULE LIMITS** - - x x - - - Substance Uranium (as U) Soluble compounds Insoluble compounds n-Valeraldehyde Vanadium (as V2O5) Respirable dust Fume Vegetable oil mist Total dust Respirable fraction Vinyl acetate Vinyl benzene; see Styrene Vinyl bromide Vinyl chloride see O.H. rule 2260 Vinylcyanide; see Acrylonitrile Vinyl cyclohexene dioxide Vinylidene chloride (1,1-Dichloroethylene) Vinyl toluene VM & P Naphtha Warfarin Welding fumes (total particulate)*** Wood dust, all soft and hard woods, except Western red cedar Wood dust, Western red cedar CAS No.E 7440-61-1 110-62-3 1314-62-1 - 108-05-4 593-60-2 75-01-4 38 PEL* ppmA mg/m3B Skin Designation - 0.05 - 0.25 -- - - - (C)0.5 - (C)0.1 - - 15 -5 -- - - TWA ppmA mg/m3B - 0.05 - 0.2 50 175 - 0.05 - 0.05 - 15 -5 10 30 STELC ppmA mg/m3B -- 0.6 -- --- --20 60 Ceiling ppmA mg/m3B Skin Designation --- -- - - --- - --- -- - - -- - 5 20 - - - - - 106-87-6 -- - 10 60 - - -- x 75-35-4 25013-15-4 8032-32-4 81-81-2 - 100 - 480 - 0.1 - 1 100 300 - 4 480 1350 0.1 400 - 1800 - - - - - -- - - 5 - - -- - - -- - - 5 - 10 - - - - -- - - 2.5 - - - - - Substance Xylenes (o-,m-,p-isomers) m-Xylene alpha, alpha'diamine Xylidine Yttrium Zinc chloride fume Zinc chromate (as CrO3) Zinc oxide fume Zinc oxide Total dust Respirable fraction Zinc stearate Total dust Respirable fraction Zirconium compounds (as Zr) 39 TRANSITIONAL LIMITS CAS No.E PEL* ppmA mg/m3B 1330-20-7 100 435 Skin De signation - 1477-55-0 1300-73-8 7440-65-5 7646-85-7 Varies with compound 1314-13-2 1314-13-2 557-05-1 7440-67-7 -5 25 -1 -1 x - See table G-2 -5 - - 15 -5 - - 15 -5 -5 - - TWA ppmA mg/m3B 100 435 -- 2 10 -1 -1 -- -5 - 10 -5 - 10 -5 -5 FINAL RULE LIMITS** STELC Ceiling ppmA mg/m3B ppmA mg/m3B 150 655 - - Skin De signation - - - - 0.1 x - - -- x - - -- - - 2 -- - - - - 0.1 - - 10 - - - - -- - -- - - -- - -- 10 - - - - - * ** *** A B C D E The transitional PELs are 8-hour TWAs unless otherwise noted; a (C) designation denotes a ceiling limit. Unless otherwise noted, employers in general industry may use any combination of controls to achieve these limits as noted in R 325.51106 for a period of not more than 4 years from the effective date of these rules. As determined from breathing- zone air samples Parts of vapor or gas per million parts of contaminated air by volume at 25Cr and 760 torr. Approximate milligrams of substance per cubic meter of air. Duration is for 15 minutes, unless otherwise noted. The final benzene standard in R 325.77101 et seq. applies to all occupational exposures to benzene, except some subsegments of industry where exposures are consistently under the action level. These subsegments include the distribution and sale of fuels, sealed containers and pipelines, coke production, oil and gas drilling and production, natural gas processing, and the percentage exclusion for liquid mixtures. For the excepted subsegments, the benzene limits in table G-2 apply. The CAS number is for information only. Enforcement is based on the substance name. For an entry covering more than 1 metal compound measured as the metal, the CAS number for the metal is given - not the CAS number for the individual compounds. TABLE G-2 40 Material S Benzene Beryllium and beryllium compounds Cadmium fume Cadmium dust S Carbon disulfate S Carbon Tetrachloride Chromic acid and chromates S Ethylene dibromide Ethylene dichloride Formaldehyde Fluoride as dust Hydrogen fluoride Hydrogen sulfide 8-hour, time weighted average Acceptable ceiling concentration 10 p.p.m. 25 p.p.m. 2 Fg/m3 0.1 mg/m3 0.2 mg/m3 20 p.p.m. 10 p.p.m. 0.1 mg/m3 20 p.p.m. 50 p.p.m. 3 p.p.m. 2.5 mg/m3 3 p.p.m. 10 p.p.m.(a) 5 Fg/m3 0.3 mg/m3 0.6 mg/m3 30 p.p.m. 25 p.p.m. 30 p.p.m. 100 p.p.m. 5 p.p.m. 20 p.p.m. Methyl chloride Methylene Chloride S Mercury S Mercury organo (alkyl) Styrene Tetrachloroethylene Trichloroethylene Toluene 100 p.p.m. 500 p.p.m. 0.1 mg/m3 0.01 mg/m3 100 p.p.m. 100 p.p.m. 100 p.p.m. 200 p.p.m. 200 p.p.m. 1,000 p.p.m. 0.04 mg/m3 200 p.p.m. 200 p.p.m. 200 p.p.m. 300 p.p.m. Note: S above signifies that skin contact shall not be allowed. Acceptable maximum peak above the acceptable ceiling concentration for an 8- hour shift. Concentration Maximum duration 50 10 minutes 25 Fg/m3 30 minutes 100 p.p.m. 200 p.p.m. 30 minutes 5 minutes in any 4 hours 50 p.p.m. 200 p.p.m. 10 p.p.m. 5 minutes 5 minutes in any 3 hours 30 minutes 50 p.p.m. 300 p.p.m. 2,000 p.p.m. 10 minutes once only if no other measurable exposure occurs 5 minutes in any 3 hours 5 minutes in any 2 hours 600 p.p.m. 300 p.p.m. 300 p.p.m. 500 p.p.m. 5 minutes in any 3 hours 5 minutes in any 3 hours 5 minutes in any 2 hours 10 minutes Silica: Crystalline: Quartz (respirable) 41 TABLE G-3-MINERAL DUSTS Substance mppcf(a) 250(b) %SiO2 + 5 mg/m3 10 mg/m3(c) %SiO2 + 2 Quartz (total dust) 3 0 mg/m3 %SiO2 + 2 Crisotbalite: Use % the value calculated from the count or mass formulae for quartz. Tridymite: Use % the value calculated from the formulae for quartz. Amorphous, including natural diatomaceous earth 20 Silicates (less than 1% crystalline silica): Asbestos Mica Soapstone Talc (non-asbestos-form) 20 20 2 0(d) See Rule 2205 Talc (fibrous) Use asbestos limit Tremolite (see talc, fibrous) Portland cement 50 Graphite (natural) 15 Coal dust (respirable fraction less than 5% SiO2(E) Coal dust (respirable fraction more than 5% SiO2(e) 2.4 mg/m3 or 10 mg/m3 %SiO2 + 2 Inert or Nuisance Dust(f) Respirable fraction Total dust 15 5 mg/m3 5 15 mg/m3 Note: Conversion factors - mppcf x 35.3 = million particles per cubic meter = particles per c.c. a Millions of particles per cubic foot of air, based on impinger samples counted by light field techniques. b The percentage of crystalline silica in the formula is the amount determined from airborne samples, except in those instances in which other methods have been shown to be applicable. Both concentration and percent quartz for the application of this limit are to be determined from the fraction passing a size selector with the following characteristics: Aerodynamic diameter (unit density sphere) Percent passing selector 2 90 2.5 75 3.5 50 5.0 25 10 0 Containing <1% quartz; if> 1% quartz, use quartz limit. The measurements under this note refer to the use of an AEC instrument. If the respirable fraction of coal dust is determined with a MRE, the figure corresponding to that of 2.4 mg/m3 in the table for coal dust is 4.5 mg/m3 f The following are some examples of inert or nuisance particles when toxic impurities are not present; for example, quartz less than 1%. Alundum (A^O3) Gypsum Pentaerythritol Calcium carbonate Vegetable oil mists Plaster of Paris Cellulose (except castor, cashew Rouge Portland cement nut, or similar irritant Silicon carbide Corundum (A^O3) oils) Starch Emery Limestone Sucrose Glycerine mist Magnesite Tin oxide Graphite (synthetic) Marble Titanium dioxide