| Number of Employees | Minimum Number of Facilities |
| 20 or less | 1 |
| 20 or more | 1 toilet seat and 1 urinal per 40 workers |
| 200 or more | 1 toilet seat and 1 urinal per 50 workers |
(f) Washing facilities.
(f)(1) The employer shall provide adequate washing facilities for employees engaged in the application of paints, coating, herbicides, or insecticides, or in other operations where contaminants may be harmful to the employees. Such facilities shall be in near proximity to the worksite and shall be so equipped as to enable employees to remove such substances.
(f)(2) General. Washing facilities shall be maintained in a sanitary condition.
CFR# 1926.52 - Occupational noise exposure.
(a) Protection against the effects of noise exposure shall be provided when the sound levels exceed those shown in Table D-2 of this section when measured on the A-scale of a standard sound level meter at slow response.
(b) When employees are subjected to sound levels exceeding those listed in Table D-2 of this section, feasible administrative or engineering controls shall be utilized. If such controls fail to reduce sound levels within the levels of the table, personal protective equipment as required in Subpart E, shall be provided and used to reduce sound levels within the levels of the table.
| Duration per Day, Hours | Sound Level dBA Slow Response |
| 8 6 4 3 2 1 1/2 1 1/2 1/4 or less | 90 92 95 97 100 102 105 110 115 |
(c) If the variations in noise level involve maxima at intervals of 1 second or less, it is to be considered continuous.
(d)(1) In all cases where the sound levels exceed the values shown herein, a continuing, effective hearing conservation program shall be administered.
(d)(2)(i) When the daily noise exposure is composed of two or more periods of noise exposure of different levels, their combined
effect should be considered, rather than the individual effect of each. Exposure to different levels for various periods of time shall be computed according to the formula set forth in paragraph (d)(2)(ii) of this section.
(d)(2)(ii) Fe = (T1 / L1) + (T2 / L2) + ... + (Tn / Ln) where:
T = The period of noise exposure at any essentially constant level.
L = The duration of the permissible noise exposure at the constant level (from Table D-2).
If the value of Fe exceeds unity (1) the exposure exceeds permissible levels.
(d)(2)(iii) A sample computation showing an application of the formula in paragraph (d)(2)(ii) of this section is as follows. An employee is exposed at these levels for these periods:
100 db A 1/2 hour.
90 db A 1 1/2 hours.
Fe = (1/4/1/2) + (1/2/2) + (1 1/2/8)
Fe = 0.500 + 0.25 + 0.188
Fe = 0.938
Since the value of Fe does not exceed unity, the exposure is within permissible limits.
(e) Exposure to impulsive or impact noise should not exceed 140 dB peak sound pressure level.
CFR# 1926.54 - Nonionizing radiation.
(a) Only qualified and trained employees shall be assigned to install, adjust, and operate laser equipment.
(b) Proof of qualification of the laser equipment operator shall be available and in possession of the operator at all times.
(c) Employees, when working in areas in which a potential exposure to direct or reflected laser light greater than 0.005 watts (5 milliwatts) exists, shall be provided with antilaser eye protection devices as specified in Subpart E of this part.
(d) Areas in which lasers are used shall be posted with standard laser warning placards.
(e) Beam shutters or caps shall be utilized, or the laser turned off, when laser transmission is not actually required. When the laser is left unattended for a substantial period of time, such as during lunch hour, overnight, or at change of shifts, the laser shall be turned off.
(f) Only mechanical or electronic means shall be used as a detector for guiding the internal alignment of the laser.
(g) The laser beam shall not be directed at employees.
(h) When it is raining or snowing, or when there is dust or fog in the air, the operation of laser systems shall be prohibited where practicable; in any event, employees shall be kept out of range of the area of source and target during such weather conditions.
(i) Laser equipment shall bear a label to indicate maximum output.
(j) Employees shall not be exposed to light intensities above:
(j)(1) Direct staring: 1 micro-watt per square centimeter;
(j)(2) Incidental observing: 1 milliwatt per square centimeter;
(j)(3) Diffused reflected light: 2 1/2 watts per square centimeter.
(k) Laser unit in operation should be set up above the heads of the employees, when possible.
CFR# 1926.55 - Gases, vapors, fumes, dusts, and mists.
(a) Exposure of employees to inhalation, ingestion, skin absorption, or contact with any material or substance at a concentration above those specified in the "Threshold Limit Values of Airborne Contaminants for 1970" of the American Conference of Governmental Industrial Hygienists, shall be avoided. See Appendix A to this section.
(b) To achieve compliance with paragraph (a) of this section, administrative or engineering controls must first be implemented whenever feasible. When such controls are not feasible to achieve full compliance, protective equipment or other protective measures shall be used to keep the exposure of employees to air contaminants within the limits prescribed in this section. Any equipment and technical measures used for this purpose must first be approved for each particular use by a competent industrial hygienist or other technically qualified person. Whenever respirators are used, their use shall comply with 1926.103.
(c) Paragraphs (a) and (b) of this section do not apply to the exposure of employees to airborne asbestos, tremolite, anthophyllite, or actinolite dust. Whenever any employee is exposed to airborne asbestos, tremolite, anthophyllite, or actinolite dust, the requirements of 1910.1101 or 1926.58 of this title shall apply.
(d) Paragraphs (a) and (b) of this section do not apply to the exposure of employees to formaldehyde. Whenever any employee is exposed to formaldehyde, the requirements of 1910.1048 of this title shall apply.
CFR# 1926.55 - Appendix A - Gases, vapors, fumes, dusts, and mists.
NOTE: Because of the length of the table, explanatory Footnotes applicable to all substances are given below. Footnotes specific only to a limited number of substances are also shown within the table.
| 2 | See Mineral Dusts Table. |
| 3 | Use Asbestos Limit 1926.58 |
| 4 | See 1926.58 |
| * | The PELs are 8-hour TWAs unless otherwise noted; a (C) designation denotes a ceiling limit. |
| ** | As determined from breathing-zone air samples. |
| a | Parts of vapor or gas per million parts of contaminated air by volume at 25 degrees C and 760 torr. |
| b | Milligrams of substance per cubic meter of air. When entry is in this column only, the value is exact; when listed with a ppm entry, it is approximate. |
| d | The CAS number is for information only. Enforcement is based on the substance name. For an entry covering more than one metal compound, measured as the metal, the CAS number for the metal is given - not CAS numbers for the individual compounds. |
| g | For sectors excluded from 1926.1128 the limit is 10 ppm TWA. |
| j | Millions of particles per cubic foot of air, based on impinger samples counted by light-field techniques. |
| k | 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. |
| m | Covers all organic and inorganic particulates not otherwise regulated. Same as Particulates Not Otherwise Regulated. |
| The 1970 TLV uses letter designations instead of a numerical value as follows: | |
| | |
| A(2) | Polytetrafluoroethylene decomposition products. Because these products decompose in part by hydrolysis in alkaline solution, they can be quantitatively determined in air as fluoride to provide an index of exposure. No TLV is recommended pending determination of the toxicity of the products, but air concentrations should be minimal. |
| A(3) | Gasoline and/or Petroleum distillates. The composition of these materials varies gratly and thus a single TLV for all types of these materials is no longer applicable. The content of benzene, other aromatics and additives should be determined to arrive at the appropriate TLV. |
| E | Simple asphyxiants. The limiting factor is the available oxygen which shall be at least 19.5 percent and be within the requirements addressing explosion in part 1926. |
| Substance | CAS No.d | ppma | mg/m3b | Skin Designation |
| Abate; see Temephos. | ||||
| Acetaldehyde | 75-07-0 | 200 | 360 | |
| Acetic acid. | 64-19-7 | 10 | 25 | |
| Acetic anhydride | 108-24-7 | 5 | 20 | |
| Acetone | 67-64-1 | 1000 | 2400 | |
| Acetonitrile | 75-05-8 | 40 | 70 | |
| 2-Acetylaminofluorene; see 1926.1114 | 53-96-3 | |||
| Acetylene | 74-86-2 | E | ||
| Acetylene dichloride; see 1, 2-Dichloroethylene | ||||
| Acetylene tetrabromide | 79-27-6 | 1 | 14 | |
| Acrolein | 107-02-8 | 0.1 | 0.25 | |
| Acrylamide | 79-06-1 | 0.3 | X | |
| Acrylonitrile; see 1926.1145 | 107-13-1 | |||
| Aldrin | 309-00-2 | 0.25 | X | |
| Allyl alcohol | 107-18-6 | 2 | 5 | X |
| Allyl chloride | 107-05-1 | 1 | 3 | |
| Allyl glycidyl ether (AGE) | 106-92-3 | (C)10 | (C)45 | |
| Allyl propyl disulfide | 2179-59-1 | 2 | 12 | |
| alpha-Alumina | 1344-28-1 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Alundum; see alpha-Alumina | ||||
| 4-Aminodiphenyl; see 1926.1111 | 92-67-1 | |||
| 2-Aminoethanol; see Ethanolamine | ||||
| 2-Aminopyridine | 504-29-0 | 0.5 | 2 | |
| Ammonia | 7664-41-7 | 50 | 35 | |
| Ammonium sulfamate | 7773-06-0 | |||
| Total dust | 15 | |||
| Respirable fraction | 5 | |||
| n-Amyl acetate | 628-63-7 | 100 | 525 | |
| sec-Amyl acetate | 626-38-0 | 125 | 650 | |
| Aniline and homologs | 62-53-3 | 5 | 19 | X |
| Anisidine (o-, p-isomers) | 29191-52-4 | 0.5 | X | |
| Antimony and compounds (as Sb) | 7440-36-0 | 0.5 | ||
| ANTU (alpha Naphthylthiourea) | 86-88-4 | 0.3 | ||
| Argon | 7440-37-1 | E | ||
| Arsenic, inorganic compounds (as As); see 1926.1118 | 7440-38-2 | |||
| Arsenic, organic compounds (as As) | 7440-38-2 | 0.5 | ||
| Arsine | 7784-42-1 | 0.05 | 0.2 | |
| Asbestos; see 1926.58 | ||||
| Azinphos-methyl | 86-50-0 | 0.2 | X | |
| Barium, soluble compounds (as Ba) | 7440-39-3 | 0.5 | ||
| Benzene g; see 1926.1128 | 71-43-2 | |||
| Benzidine; see 1926.1110 | 92-87-5 | |||
| p-Benzoquinone; see Quinone | ||||
| Benzo a pyrene; see Coaltarpitch volatiles | ||||
| Benzoyl peroxide | 94-36-0 | 5 | ||
| Benzyl chloride | 100-44-7 | 1 | 5 | |
| Beryllium and beryllium compounds (as Be) | 7440-41-7 | 0.002 | ||
| Biphenyl; see Diphenyl | ||||
| Bisphenol A; see Diglycidyl ether | ||||
| Boron oxide | 1303-86-2 | |||
| Total dust | 15 | |||
| Boron tribromide | 10294-33-4 | 1 | 10 | |
| Boron trifluoride | 7637-07-2 | (C)1 | (C)3 | |
| Bromine | 7726-95-6 | 0.1 | 0.7 | |
| Bromine pentafluoride | 7789-30-2 | 0.1 | 0.7 | |
| Bromoform | 75-25-2 | 0.5 | 5 | X |
| *Butadiene (1, 3-Butadiene); See 29 CFR 1910.1051; 29 CFR 1910.19 | 106-99-0 | 1 ppm/5 ppm STEL | ||
| Butanethiol; see Butyl mercaptan | ||||
| 2-Butanone (Methyl ethyl ketone) | 78-93-3 | 200 | 590 | |
| 2-Butoxyethanol | 111-76-2 | 50 | 240 | X |
| n-Butyl-acetate | 123-86-4 | 150 | 710 | |
| sec-Butyl acetate | 105-46-4 | 200 | 950 | |
| tert-Butyl-acetate | 540-88-5 | 200 | 950 | |
| n-Butyl alcohol | 71-36-3 | 100 | 300 | |
| sec-Butyl alcohol | 78-92-2 | 150 | 450 | |
| tert-Butyl alcohol | 75-65-0 | 100 | 300 | |
| Butylamine | 109-73-9 | (C)5 | (C)15 | X |
| tert-Butyl chromate (as CrO3) | 1189-85-1 | (C)0.1 | X | |
| n-Butyl glycidyl ether (BGE) | 2426-08-6 | 50 | 270 | |
| Butyl mercaptan | 109-79-5 | 0.5 | 1.5 | |
| p-tert-Butyltoluene | 98-51-1 | 10 | 60 | |
| Cadmium (as Cd); see 1910.1027 | 7440-43-9 | |||
| Calcium Carbonate | 1317-65-3 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Calcium oxide | 1305-78-8 | 5 | ||
| Calcium sulfate | 7778-18-9 | |||
| Total dust | 15 | |||
| Respirable fraction | 5 | |||
| Camphor, synthetic | 76-22-2 | 2 | ||
| Carbaryl (Sevin) | 63-25-2 | 5 | ||
| Carbon black | 1333-86-4 | 3.5 | ||
| Carbon dioxide | 124-38-9 | 5000 | 9000 | |
| Carbon disulfide | 75-15-0 | 20 | 60 | X |
| Carbon monoxide | 630-08-0 | 50 | 55 | |
| Carbon tetrachloride | 56-23-5 | 10 | 65 | X |
| Cellulose | 9004-34-6 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Chlordane | 57-74-9 | 0.5 | X | |
| Chlorinated camphene | 8001-35-2 | 0.5 | X | |
| Chlorinated diphenyl oxide | 55720-99-5 | 0.5 | ||
| Chlorine | 7782-50-5 | 1 | 3 | |
| Chlorine dioxide | 10049-04-4 | 0.1 | 0.3 | |
| Chlorine trifluoride | 7790-91-2 | (C)0.1 | (C)0.4 | |
| Chloroacetaldehyde | 107-20-0 | (C)1 | (C)3 | |
| a-Chloroacetophenone (Phenacyl chloride) | 532-27-4 | 0.05 | 0.3 | |
| Chlorobenzene | 108-90-7 | 75 | 350 | |
| o-Chlorobenzylidene malononitrile | 2698-41-1 | 0.05 | 0.4 | |
| Chlorobromomethane | 74-97-5 | 200 | 1050 | |
| 2-Chloro-1, 3-butadiene; See beta-Chloroprene | ||||
| Chlorodiphenyl (42 percent Chlorine) (PCB) | 53469-21-9 | 1 | X | |
| Chlorodiphenyl (54 percent Chlorine) (PCB) | 11097-69-1 | 0.5 | X | |
| 1-Chloro-2, 3-epoxypropane; See Epichlorohydrin | ||||
| 2-Chloroethanol; See Ethylene chlorohydrin | ||||
| Chloroethylene; See Vinylchloride | ||||
| Chloroform (Trichloromethane) | 67-66-3 | (C)50 | (C)240 | |
| bis (Chloromethyl) ether; see 1926.1108 | 542-88-1 | |||
| Chloromethyl methyl ether; see 1926.1106 | 107-30-2 | |||
| 1-Chloro-1-nitropropane | 600-25-9 | 20 | 100 | |
| Chloropicrin | 76-06-2 | 0.1 | 0.7 | |
| beta-Chloroprene | 126-99-8 | 25 | 90 | X |
| Chromic acid and chromates (as CrO3) | Varies with compound | 0.1 | ||
| Chromium (II) compounds (as Cr) | 7440-47-3 | 0.5 | ||
| Chromium (III) compounds (as Cr) | 7440-47-3 | 0.5 | ||
| Chromium metal and insol. salts (as Cr) | 7440-47-3 | 1 | ||
| Chrysene; see Coal tar pitch volatiles | ||||
| Coal tar pitch volatiles (benzene soluble fraction), anthracene, BaP, phenanthrene, acridine, chrysene, pyrene | 65996-93-2 | 0.2 | ||
| Cobalt metal, dust, and fume (as Co) | 7440-48-4 | 0.1 | ||
| Coke oven emissions; see 1926.1129 | 0.15 | |||
| Copper | 7440-50-8 | |||
| Fume (as Cu) | 0.1 | |||
| Dusts and mists (as Cu) | 1 | |||
| Corundum; see Emery | ||||
| Cottondust (raw) | 1 | |||
| Cragherbicide (Sesone) | 136-78-7 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Cresol, all isomers | 1319-77-3 | 5 | 22 | X |
| Crotonaldehyde | 123-73-9 4170-30-3 | 2 | 6 | |
| Cumene | 98-82-8 | 50 | 245 | X |
| Cyanides (as CN) | Varies with Compound | 5 | X | |
| Cyanogen | 460-19-5 | 10 | ||
| Cyclohexane | 110-82-7 | 300 | 1050 | |
| Cyclohexanol | 108-93-0 | 50 | 200 | |
| Cyclohexanone | 108-94-1 | 50 | 200 | |
| Cyclohexene | 110-83-8 | 300 | 1015 | |
| Cyclonite | 121-82-4 | 1.5 | X | |
| Cyclopentadiene | 542-92-7 | 75 | 200 | |
| DDT, see Dichlorodiphenyltrichloroethane | ||||
| DDVP, see Dichlorvos | ||||
| 2, 4-D (Dichlorophenoxyacetic acid) | 94-75-7 | 10 | ||
| Decaborane | 17702-41-9 | 0.05 | 0.3 | X |
| Demeton (Systox) | 8065-48-3 | 0.1 | X | |
| Diacetone alcohol (4-Hydroxy-4-methyl-2-pentanone) | 123-42-2 | 50 | 240 | |
| 1, 2-Diaminoethane; see Ethylenediamine | ||||
| Diazomethane | 334-88-3 | 0.2 | 0.4 | |
| Diborane | 19287-45-7 | 0.1 | 0.1 | |
| 1, 2-Dibromo-3-chloropropane (DBCP); see 1926.1144 | 96-12-8 | |||
| 1, 2-Dibromoethane; see Ethylene dibromide | ||||
| Dibutyl phosphate | 107-66-4 | 1 | 5 | |
| Dibutyl phthalate | 84-74-2 | 5 | ||
| Dichloroacetylene | 7572-29-4 | (C)0.1 | (C)0.4 | |
| o-Dichlorobenzene | 95-50-1 | (C)50 | (C)300 | |
| p-Dichlorobenzene | 106-46-7 | 75 | 450 | |
| 3, 3'-Dichlorobenzidine; see 1926.1107 | 91-94-1 | |||
| Dichlorodifluoromethane | 75-71-8 | 1000 | 4950 | |
| 1, 3-Dichloro-5, 5-dimethyl hydantoin | 118-52-5 | 0.2 | ||
| Dichlorodiphenyltrichloroethane (DDT) | 50-29-3 | 1 | X | |
| 1, 1-Dichloroethane | 75-34-3 | 100 | 400 | |
| 1, 2-Dichloroethane; see Ethylene dichloride | ||||
| 1, 2-Dichloroethylene | 540-59-0 | 200 | 790 | |
| Dichloroethyl ether | 111-44-4 | (C)15 | (C)90 | X |
| Dichloromethane; see Methylene chloride | ||||
| Dichloromonofluoromethane | 75-43-4 | 1000 | 4200 | |
| 1, 1-Dichloro-1-nitroethane | 594-72-9 | (C)10 | (C)60 | |
| 1, 2-Dichloropropane; see Propylene dichloride | ||||
| Dichlorotetrafluoroethane | 76-14-2 | 1000 | 7000 | |
| Dichlorvos (DDVP) | 62-73-7 | 1 | X | |
| Dieldrin | 60-57-1 | 0.25 | X | |
| Diethylamine | 109-89-7 | 25 | 75 | |
| 2-Diethylaminoethanol | 100-37-8 | 10 | 50 | X |
| Diethylene triamine | 111-40-0 | (C)10 | (C)42 | X |
| Diethyl ether; see Ethyl ether | ||||
| Difluorodibromomethane | 75-61-6 | 100 | 860 | |
| Diglycidyl ether (DGE) | 2238-07-5 | (C)0.5 | (C)2.8 | |
| Dihydroxybenzene; see Hydroquinone | ||||
| Diisobutyl ketone | 108-83-8 | 50 | 290 | |
| Diisopropylamine | 108-18-9 | 5 | 20 | X |
| 4-Dimethylaminoazobenzene; see 1926.1115 | 60-11-7 | |||
| Dimethoxymethane; see Methylal | ||||
| Dimethyl acetamide | 127-19-5 | 10 | 35 | X |
| Dimethylamine | 124-40-3 | 10 | 18 | |
| Dimethylaminobenzene; see Xylidine | ||||
| Dimethylaniline (N, N-Dimethylaniline) | 121-69-7 | 5 | 25 | X |
| Dimethylbenzene; see Xylene | ||||
| Dimethyl-1, 2-dibromo-2, 2-dichloroethyl phosphate | 300-76-5 | 3 | ||
| Dimethylformamide | 68-12-2 | 10 | 30 | X |
| 2, 6-Dimethyl-4-heptanone; see Diisobutyl ketone | ||||
| 1, 1-Dimethylhydrazine | 57-14-7 | 0.5 | 1 | X |
| Dimethylphthalate | 131-11-3 | 5 | ||
| Dimethyl sulfate | 77-78-1 | 1 | 5 | X |
| Dinitrobenzene | ||||
| (all isomers) | 1 | X | ||
| (ortho) | 528-29-0 | |||
| (meta) | 99-65-0 | |||
| (para) | 100-25-4 | |||
| Dinitro-o-cresol | 534-52-1 | 0.2 | X | |
| Dinitrotoluene | 25321-14-6 | 1.5 | X | |
| Dioxane (Diethylene dioxide) | 123-91-1 | 100 | 360 | X |
| Diphenyl (Biphenyl) | 92-52-4 | 0.2 | 1 | |
| Diphenylamine | 122-39-4 | 10 | ||
| Diphenylmethane diisocyanate; see Methylene bisphenyl isocyanate | ||||
| Dipropylene glycol methyl ether | 34590-94-8 | 100 | 600 | X |
| Di-sec octyl phthalate (Di-2-ethylhexyl) phthalate) | 117-81-7 | 5 | ||
| Emery | 12415-34-8 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Endosulfan | 115-29-7 | 0.1 | X | |
| Endrin | 72-20-8 | 0.1 | X | |
| Epichlorohydrin | 106-89-8 | 5 | 19 | X |
| EPN | 2104-64-5 | 0.5 | X | |
| 1, 2-Epoxypropane; see Propylene oxide | ||||
| 2, 3-Epoxy-1-propanol; see Glycidol | ||||
| Ethane | 74-84-0 | E | ||
| Ethanethiol; see Ethyl mercaptan | ||||
| Ethanolamine | 141-43-5 | 3 | 6 | |
| 2-Ethoxyethanol (Cellosolve) | 110-80-5 | 200 | 740 | X |
| 2-Ethoxyethyl acetate (Cellosolve acetate) | 111-15-9 | 100 | 540 | X |
| Ethyl acetate | 141-78-6 | 400 | 1400 | |
| Ethyl acrylate | 140-88-5 | 25 | 100 | X |
| Ethyl alcohol (Ethanol) | 64-17-5 | 1000 | 1900 | |
| Ethylamine | 75-04-7 | 10 | 18 | |
| Ethyl amyl ketone (5-Methyl-3-heptanone) | 541-85-5 | 25 | 130 | |
| Ethyl benzene | 100-41-4 | 100 | 435 | |
| Ethyl bromide | 74-96-4 | 200 | 890 | |
| Ethyl butylketone (3-Heptanone) | 106-35-4 | 50 | 230 | |
| Ethyl chloride | 75-00-3 | 1000 | 2600 | |
| Ethyl ether | 60-29-7 | 400 | 1200 | |
| Ethyl formate | 109-94-4 | 100 | 300 | |
| Ethyl mercaptan | 75-08-1 | 0.5 | 1 | |
| Ethyl silicate | 78-10-4 | 100 | 850 | |
| Ethylene | 74-85-1 | E | ||
| Ethylene chlorohydrin | 107-07-3 | 5 | 16 | X |
| Ethylenediamine | 107-15-3 | 10 | 25 | |
| Ethylene dibromide | 106-93-4 | (C)25 | (C)190 | X |
| Ethylene dichloride (1, 2-Dichloroethane) | 107-06-2 | 50 | 200 | |
| Ethylene glycol dinitrate | 628-96-6 | (C)0.2 | (C)1 | X |
| Ethylene glycol methyl acetate; see Methyl cellosolve acetate | ||||
| Ethyleneimine; see 1926.1112 | 151-56-4 | |||
| Ethylene oxide; see 1926.1147 | 75-21-8 | |||
| Ethylidene chloride; see 1, 1-Dichlorethane | ||||
| N-Ethylmorpholine | 100-74-3 | 20 | 94 | X |
| Ferbam | 14484-64-1 | |||
| Total dust | 15 | |||
| Ferrovanadium dust | 12604-58-9 | 1 | ||
| Fibrous Glass | ||||
| Total dust | ||||
| Respirable fraction | ||||
| Fluorides (as F) | Varies with compound | 2.5 | ||
| Fluorine | 7782-41-4 | 0.1 | 0.2 | |
| Fluorotrichloromethane (Trichlorofluoromethane) | 75-69-4 | 1000 | 5600 | |
| Formaldehyde; see 1926.1148 | 50-00-0 | |||
| Formic acid | 64-18-6 | 5 | 9 | |
| Furfural | 98-01-1 | 5 | 20 | X |
| Furfuryl alcohol | 98-00-0 | 50 | 200 | |
| Gasoline | 8006-61-9 | A(3) | ||
| Glycerin (mist) | 56-81-5 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Glycidol | 556-52-5 | 50 | 150 | |
| Glycol monoethyl ether; see 2-Ethoxyethanol | ||||
| Graphite, natural | ||||
| respirable dust | 7782-42-5 | 2 | 2 | 2 |
| Graphite, synthetic | ||||
| Total dust | ||||
| Respirable fraction | ||||
| Guthion; see Azinphos methyl | ||||
| Gypsum | 13397-24-5 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Hafnium | 7440-58-6 | 0.5 | ||
| Helium | 7440-59-7 | E | ||
| Heptachlor | 76-44-8 | 0.5 | X | |
| Heptane (n-Heptane) | 142-82-5 | 500 | 2000 | |
| Hexachloroethane | 67-72-1 | 1 | 10 | X |
| Hexachloronaphthalene | 1335-87-1 | 0.2 | X | |
| n-Hexane | 110-54-3 | 500 | 1800 | |
| 2-Hexanone (Methyl n-butyl ketone) | 591-78-6 | 100 | 410 | |
| Hexone (Methylisobutyl ketone) | 108-10-1 | 100 | 410 | |
| sec-Hexyl acetate | 108-84-9 | 50 | 300 | |
| Hydrazine | 302-01-2 | 1 | 1.3 | X |
| Hydrogen | 1333-74-0 | E | ||
| Hydrogen bromide | 10035-10-6 | 3 | 10 | |
| Hydrogen chloride | 7647-01-0 | (C)5 | (C)7 | |
| Hydrogen cyanide | 74-90-8 | 10 | 11 | X |
| Hydrogen fluoride (as F) | 7664-39-3 | 3 | 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 | 10 | 15 | |
| Hydroquinone | 123-31-9 | 2 | ||
| 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 | |
| Iron oxide fume | 1309-37-1 | 10 | ||
| Iron salts (soluble) (as Fe) | Varies with compound | 1 | ||
| Isomyl acetate | 123-92-2 | 100 | 525 | |
| Isomyl alcohol (primary and secondary) | 123-51-3 | 100 | 360 | |
| Isobutyl acetate | 110-19-0 | 150 | 700 | |
| Isobutyl alcohol | 78-83-1 | 100 | 300 | |
| Isophorone | 78-59-1 | 25 | 140 | |
| Isopropyl acetate | 108-21-4 | 250 | 950 | |
| Isopropyl alcohol | 67-63-0 | 400 | 980 | |
| Isopropylamine | 75-31-0 | 5 | 12 | |
| Isopropyl ether | 108-20-3 | 500 | 2100 | |
| Isopropyl glycidyl ether(IGE) | 4016-14-2 | 50 | 240 | |
| Kaolin | 1332-58-7 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Ketene | 463-51-4 | 0.5 | 0.9 | |
| Lead inorganic (as Pb); see 1926.62 | 7439-92-1 | |||
| Limestone | 1317-65-3 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Lindane | 58-89-9 | 0.5 | X | |
| Lithium hydride | 7580-67-8 | 0.025 | ||
| L.P.G. (Liquified petroleum gas) | 68476-85-7 | 1000 | 1800 | |
| Magnesite | 546-93-0 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Magnesium oxide fume | 1309-48-4 | |||
| Total Particulate | 15 | |||
| Malathion | 121-75-5 | |||
| Total dust | 15 | X | ||
| Maleic anhydride | 108-31-6 | 0.25 | ||
| Manganese compounds (as Mn) | 7439-96-5 | (C)5 | ||
| Manganese fume (as Mn) | 7439-96-5 | (C)5 | ||
| Marble | 1317-65-3 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Mercury (aryl and inorganic) (as Hg) | 7439-97-6 | 0.1 | X | |
| Mercury (organo) alkyl compounds (as Hg) | 7439-97-6 | 0.01 | X | |
| Mercury (vapor) (as Hg) | 7439-97-6 | 0.1 | X | |
| Mesityl oxide | 141-79-7 | 25 | 100 | |
| Methane | 74-82-8 | E | ||
| Methanethiol; see Methyl mercaptan | ||||
| Methoxychlor | 72-43-5 | |||
| Total dust | 15 | |||
| 2-Methoxyethanol; (Methyl cellosolve) | 109-86-4 | 25 | 80 | X |
| 2-Methoxyethyl acetate (Methyl cellosolve acetate) | 110-49-6 | 25 | 120 | X |
| Methyl acetate | 79-20-9 | 200 | 610 | |
| Methyl acetylene (Propyne) | 74-99-7 | 1000 | 1650 | |
| Methyl acetylene propadiene mixture (MAPP) | 1000 | 1800 | ||
| Methyl acrylate | 96-33-3 | 10 | 35 | X |
| Methylal (Dimethoxy-methane) | 109-87-5 | 1000 | 3100 | |
| Methyl alcohol | 67-56-1 | 200 | 260 | |
| Methylamine | 74-89-5 | 10 | 12 | |
| Methyl amyl alcohol; see Methyl Isobutyl carbinol | ||||
| Methyl n-amyl ketone | 110-43-0 | 100 | 465 | |
| Methyl bromide | 74-83-9 | (C)20 | (C)80 | X |
| Methyl butyl ketone; see 2-Hexanone | ||||
| Methyl cellosolve; see 2-Methoxyethanol | ||||
| Methyl cellosolve acetate; see 2-Methoxyethyl acetate | ||||
| Methyl chloride | 74-87-3 | 100 | 210 | |
| Methyl chloroform (1, 1, 1-Trichloroethane) | 71-55-6 | 350 | 1900 | |
| Methylcyclohexane | 108-87-2 | 500 | 2000 | |
| Methylcyclohexanol | 25639-42-3 | 100 | 470 | |
| o-Methylcyclohexanone | 583-60-8 | 100 | 460 | X |
| *Methylenechloride; see 1910.1052 | ||||
| Methyl ethyl ketone (MEK); see 2-Butanone | ||||
| Methyl formate | 107-31-3 | 100 | 250 | |
| Methyl hydrazine (Monomethyl hydrazine) | 60-34-4 | (C)0.2 | (C)0.35 | X |
| Methyl iodide | 74-88-4 | 5 | 28 | X |
| Methyl isoamyl ketone | 110-12-3 | 100 | 475 | |
| Methyl isobutyl carbinol | 108-11-2 | 25 | 100 | X |
| Methyl isobutyl ketone; see Hexone | ||||
| Methyl isocyanate | 624-83-9 | 0.02 | 0.05 | X |
| Methyl mercaptan | 74-93-1 | 0.5 | 1 | |
| Methyl methacrylate | 80-62-6 | 100 | 410 | |
| Methyl propylketone; see 2-Pentanone | ||||
| Methyl silicate | 681-84-5 | (C)5 | (C)30 | |
| alpha-Methyl styrene | 98-83-9 | (C)100 | (C)480 | |
| Methylene bisphenyl isocyanate (MDI) | 101-68-8 | (C)0.02 | (C)0.2 | |
| Methyl enedianiline (MDA) | 101-77-9 | |||
| Mica; see Silicates | ||||
| Molybdenum (as Mo) | 7439-98-7 | |||
| Soluble compounds | 5 | |||
| Insoluble Compounds | ||||
| Total dust | 15 | |||
| Monomethyl aniline | 100-61-8 | 2 | 9 | X |
| Monomethyl hydrazine; see Methyl hydrazine | ||||
| Morpholine | 110-91-8 | 20 | 70 | X |
| Naphtha (Coal tar) | 8030-30-6 | 100 | 400 | |
| Naphthalene | 91-20-3 | 10 | 50 | |
| alpha-Naphthylamine; see 1926.1104 | 134-32-7 | |||
| beta-Naphthylamine; see 1926.1109 | 91-59-8 | |||
| Neon | 7440-01-9 | E | ||
| Nickel carbonyl (as Ni) | 13463-39-3 | 0.001 | 0.007 | |
| Nickel, metal and insoluble compounds (as Ni) | 7440-02-0 | 1 | ||
| Nickel, soluble compounds (as Ni) | 7440-02-0 | 1 | ||
| Nicotine | 54-11-5 | 0.5 | X | |
| Nitric acid | 7697-37-2 | 2 | 5 | |
| Nitric oxide | 10102-43-9 | 25 | 30 | |
| p-Nitroaniline | 100-01-6 | 1 | 6 | X |
| Nitrobenzene | 98-95-3 | 1 | 5 | X |
| p-Nitrochlorobenzene | 100-00-5 | 1 | X | |
| 4-Nitrodiphenyl; see 1926.1103 | 92-93-3 | |||
| Nitroethane | 79-24-3 | 100 | 310 | |
| Nitrogen | 7727-37-9 | E | ||
| Nitrogen dioxide | 10102-44-0 | (C)5 | (C)9 | |
| Nitrogen trifluoride | 7783-54-2 | 10 | 29 | |
| Nitroglycerin | 55-63-0 | (C)0.2 | (C)2 | X |
| Nitromethane | 75-52-5 | 100 | 250 | |
| 1-Nitropropane | 108-03-2 | 25 | 90 | |
| 2-Nitropropane | 79-46-9 | 25 | 90 | |
| N-Nitrosodimethylamine; see 1926.1116 | 62-79-9 | |||
| Nitrotoluene (all isomers) | 5 | 30 | X | |
| o-isomer | 88-72-2 | |||
| m-isomer | 99-08-1 | |||
| p-isomer | 99-99-0 | |||
| Nitrotrichloromethane; see Chloropicrin | ||||
| Nitrous oxide | 10024-97-2 | E | ||
| Octachloronaphthalene | 2234-13-1 | 0.1 | X | |
| Octane | 111-65-9 | 400 | 1900 | |
| Oil mist, mineral | 8012-95-1 | 5 | ||
| Osmium tetroxide (as Os) | 20816-12-0 | 0.002 | ||
| Oxalic acid | 144-62-7 | 1 | ||
| Oxygen difluoride | 7783-41-7 | 0.05 | 0.1 | |
| Ozone | 10028-15-6 | 0.1 | 0.2 | |
| Paraquat, respirable dust | 4685-14-7 1910-42-5 2074-50-2 | 0.5 | X | |
| Parathion | 56-38-2 | 0.1 | X | |
| Particulates not other wise regulated | ||||
| Total dust organic and inorganic | 15 | |||
| PCB; see Chlorodiphenyl (42% and 54% chlorine) | ||||
| Pentaborane | 19624-22-7 | 0.005 | 0.01 | |
| Pentachloronaphthalene | 1321-64-8 | 0.5 | X | |
| Pentachlorophenol | 87-86-5 | 0.5 | X | |
| Pentaerythritol | 115-77-5 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Pentane | 109-66-0 | 500 | 1500 | |
| 2-Pentanone (Methyl propyl ketone) | 107-87-9 | 200 | 700 | |
| Perchloroethylene (Tetrachloroethylene) | 127-18-4 | 100 | 670 | |
| Perchloromethyl mercaptan | 594-42-3 | 0.1 | 0.8 | |
| Perchloryl fluoride | 7616-94-6 | 3 | 13.5 | |
| Petroleum distillates (Naphtha) (Rubber Solvent) | A(3) | |||
| Phenol | 108-95-2 | 5 | 19 | X |
| p-Phenylene diamine | 106-50-3 | 0.1 | X | |
| Phenyl ether, vapor | 101-84-8 | 1 | 7 | |
| Phenyl ether-biphenyl mixture, vapor | 1 | 7 | ||
| Phenylethylene; see Styrene | ||||
| Phenyl glycidyl ether (PGE) | 122-60-1 | 10 | 60 | |
| Phenylhydrazine | 100-63-0 | 5 | 22 | X |
| Phosdrin (Mevinphos) | 7786-34-7 | 0.1 | X | |
| Phosgene (Carbonyl chloride) | 75-44-5 | 0.1 | 0.4 | |
| Phosphine | 7803-51-2 | 0.3 | 0.4 | |
| Phosphoric acid | 7664-38-2 | 1 | ||
| Phosphorus (yellow) | 7723-14-0 | 0.1 | ||
| Phosphorus pentachloride | 10026-13-8 | 1 | ||
| Phosphorus pentasulfide | 1314-80-3 | 1 | ||
| Phosphorus trichloride | 7719-12-2 | 0.5 | 3 | |
| Phthalic anhydride | 85-44-9 | 2 | 12 | |
| Picric acid | 88-89-1 | 0.1 | X | |
| Pindone (2-Pivalyl-1, 3-indandione) | 83-26-1 | 0.1 | ||
| Plaster of paris | 26499-65-0 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Platinum (as Pt) | 7440-06-4 | |||
| Metal | ||||
| Soluble Salts | 0.002 | |||
| Polytetrafluoroethylene | ||||
| decomposition products | A(2) | |||
| Portland cement | 65997-15-1 | |||
| Total dust | 15 | |||
| Respirable fraction | 5 | |||
| Propane | 74-98-6 | E | ||
| Propargyl alcohol | 107-19-7 | 1 | X | |
| beta-Propriolactone; see 1926.1113 | 57-57-8 | |||
| n-Propyl acetate | 109-60-4 | 200 | 840 | |
| n-Propyl alcohol | 71-23-8 | 200 | 500 | |
| n-Propyl nitrate | 627-13-4 | 25 | 110 | |
| Propylene dichloride | 78-87-5 | 75 | 350 | |
| Propylene imine | 75-55-8 | 2 | 5 | X |
| Propylene oxide | 75-56-9 | 100 | 240 | |
| Propyne; see Methyl acetylene | ||||
| Pyrethrum | 8003-34-7 | 5 | ||
| Pyridine | 110-86-1 | 5 | 15 | |
| Quinone | 106-51-4 | 0.1 | 0.4 | |
| RDX: see Cyclonite | ||||
| Rhodium (as Rh), metal fume and insoluble compounds | 7440-16-6 | 0.1 | ||
| Rhodium (as Rh), solublec ompounds | 7440-16-6 | 0.001 | ||
| Ronnel | 299-84-3 | 10 | ||
| Rotenone | 83-79-4 | 5 | ||
| Rouge | ||||
| Total dust | ||||
| Respirable fraction | ||||
| Selenium compounds (as Se) | 7782-49-2 | 0.2 | ||
| Selenium hexafluoride (as Se) | 7783-79-1 | 0.05 | 0.4 | |
| Silica, amorphous, precipitated and gel | 112926-00-8 | 2 | 2 | 2 |
| Silica, amorphous, diatomaceous earth, containing less than 1 percent crystalline silica | 61790-53-2 | 2 | 2 | 2 |
| Silica, crystalline cristobalite, respirable dust | 14464-46-1 | 2 | 2 | 2 |
| Silica, crystalline quartz, respirable dust | 14808-60-7 | 2 | 2 | 2 |
| Silica, crystalline tripoli (as quartz), respirable dust | 1317-95-9 | 2 | 2 | 2 |
| Silica, crystalline tridymite, respirable dust | 15468-32-3 | 2 | 2 | 2 |
| Silica, fused, respirable dust | 60676-86-0 | 2 | 2 | 2 |
| Silicates (less than 1 percent crystalline silica) Mica (respirable dust) | 12001-26-2 | 2 | 2 | 2 |
| Soapstone, Total dust | 2 | 2 | 2 | |
| Soapstone, respirable dust | 2 | 2 | 2 | |
| Talc (containing asbestos); use asbesto limit; see 1926.58 | ||||
| Talc (containing no asbestos), respirable dust | 14807-96-6 | 2 | 2 | 2 |
| Tremolite, abestiform; see 1926.58 | ||||
| Silicon carbide | 409-21-2 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Silver, metal and soluble compounds (as Ag) | 7440-22-4 | 0.01 | ||
| Soapstone; see Silicates | ||||
| Sodium fluoroacetate | 62-74-8 | 0.05 | X | |
| Sodium hydroxide | 1310-73-2 | 2 | ||
| Starch | 9005-25-8 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Stibine | 7803-52-3 | 0.1 | 0.5 | |
| Stoddard solvent | 8052-41-3 | 200 | 1150 | |
| Strychnine | 57-24-9 | 0.15 | ||
| Styrene | 100-42-5 | (C)100 | (C)420 | |
| Sucrose | 57-50-1 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Sulfur dioxide | 7446-09-5 | 5 | 13 | |
| Sulfur hexafluoride | 2551-62-4 | 1000 | 6000 | |
| Sulfuric acid | 7664-93-9 | 1 | ||
| Sulfur monochloride | 10025-67-9 | 1 | 6 | |
| Sulfur pentafluoride | 5714-22-7 | 0.025 | 0.25 | |
| Sulfuryl fluoride | 2699-79-8 | 5 | 20 | |
| Systox; see Demeton | ||||
| 2, 4, 5-T (2, 4, 5-tri-chlorophenoxyacetic acid) | 93-76-5 | 10 | ||
| Talc; see Silicates | ||||
| Tantalum, metal and oxide dust | 7440-25-7 | 5 | ||
| TEDP (Sulfotep) | 3689-24-5 | 0.2 | X | |
| Teflon decomposition products | A2 | |||
| Tellurium and compounds (as Te) | 13494-80-9 | 0.1 | ||
| Tellurium hexafluoride (as Te) | 7783-80-4 | 0.02 | 0.2 | |
| Temephos | 3383-96-8 | |||
| Total dust | ||||
| Respirable fraction | ||||
| TEPP (Tetraethyl pyrophosphaate) | 107-49-3 | 0.05 | X | |
| Terphenylis | 26140-60-3 | (C)1 | (C)9 | |
| 1, 1, 1, 2-Tetrachloro-2, 2-difluoroethane | 76-11-9 | 500 | 4170 | |
| 1, 1, 2, 2-Tetrachloro-1, 2-difluoroethane | 76-12-0 | 500 | 4170 | |
| 1, 1, 2, 2-Tetrachloroethane | 79-34-5 | 5 | 35 | X |
| Tetrachoroethylene; see Perchloroethylene | ||||
| Tetrachloromethane; see Carbon tetrachloride | ||||
| Tetrachloronaphthalene | 1335-88-2 | 2 | X | |
| Tetraethyl lead (as Pb) | 78-00-2 | 0.1 | X | |
| Tetrahydrofuran | 109-99-9 | 200 | 590 | |
| Tetramethyl lead, (as Pb) | 75-74-1 | 0.15 | X | |
| Tetramethyl succinonitrile | 3333-52-6 | 0.5 | 3 | X |
| Tetranitromethane | 509-14-8 | 1 | 8 | |
| Tetryl (2, 4, 6-Trinitrophenylmethyl-nitramine) | 479-45-8 | 1.5 | X | |
| Thallium, soluble compounds (as Tl) | 7440-28-0 | 0.1 | X | |
| 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 | |||
| Total dust | ||||
| Respirable fraction | ||||
| Titanium dioxide | 13463-67-7 | |||
| Total dust | ||||
| Toluene | 108-88-3 | 200 | 750 | |
| Toluene-2, 4-diisocyanate (TDI) | 584-84-9 | (C)0.02 | (C)0.14 | |
| o-Toluidine | 95-53-4 | 5 | 22 | X |
| Toxaphene; see Chlorinated camphene | ||||
| Tremolite; see Silicates | ||||
| Tributyl phosphate | 126-73-8 | 5 | ||
| 1, 1, 1-Trichloroethane; see Methyl chloroform | ||||
| 1, 1, 2-Trichloroethane | 79-00-5 | 10 | 45 | X |
| Trichloroethylene | 79-01-6 | 100 | 535 | |
| Trichloromethane; see Chloroform | ||||
| Trichloronaphthalene | 1321-65-9 | 5 | X | |
| 1, 2, 3-Trichloropropane | 96-18-4 | 50 | 300 | |
| 1, 1, 2-Trichloro-1, 2, 2-trifluoroethane | 76-13-1 | 1000 | 7600 | |
| Triethylamine | 121-44-8 | 25 | 100 | |
| Trifluorobromomethane | 75-63-8 | 1000 | 6100 | |
| Trimethyl benzene | 25551-13-7 | 25 | 120 | |
| 2, 4 6-Trinitrophenyl; see Picric acid | ||||
| 2, 4, 6-Trinitrophenylmethyl nitramine; see Tetryl | ||||
| 2, 4, 6-Trinitrotoluene (TNT) | 118-96-7 | 1.5 | X | |
| Triorthocresyl phosphate | 78-30-8 | 0.1 | ||
| Triphenyl phosphate | 115-86-6 | 3 | ||
| Tungsten (as W) | 7440-33-7 | |||
| Insoluble compounds | 5 | |||
| Soluble compounds | 1 | |||
| Turpentine | 8006-64-2 | 100 | 560 | |
| Uranium (as U) | 7440-61-1 | |||
| Soluble compounds | 0.2 | |||
| Insoluble compounds | 0.2 | |||
| Vanadium | 1314-62-1 | |||
| Respirable dust (as V2O5) | (C)0.5 | |||
| Fume (as V2O5) | (C)0.1 | |||
| Vegetable oil mist | ||||
| Total dust | ||||
| Respirable fraction | ||||
| Vinyl benzene; see Styrene | ||||
| Vinyl chloride; see 1926.1117 | 75-01-4 | |||
| Vinyl cyanide; see Acrylonitrile | ||||
| Vinyl toluene | 25013-15-4 | 100 | 480 | |
| Warfarin | 81-81-2 | 0.1 | ||
| Xylenes (o-, m-, p-isomers) | 1330-20-7 | 100 | 435 | |
| Xylidine | 1300-73-8 | 5 | 25 | X |
| Yttrium | 7440-65-5 | 1 | ||
| Zinc chloride fume | 7646-85-7 | 1 | ||
| Zinc oxide fume | 1314-13-2 | 5 | ||
| Zinc oxide | 1314-13-2 | |||
| Total dust | 15 | |||
| Respirable fraction | 5 | |||
| Zirconium compounds (as Zr) | 7440-67-7 | 5 |
| SILICA: Crystalline Quartz. Threshold limit calculated from the formula Cristobalite. Amorphous, including natural diatomaceous earth SILICATES (less than 1 percent crystalline silica) | ---------- %SiO2 + 5 20 20 50 20 20 - 15 |
| Inert or Nuisance Particulatesm: "[*Inert or Nuisance Dusts includes all mineral, inorganic, and organic dusts as indicated by examples by examples in TLV's Appendix D]" | 50 (or 15 mg/m3 whichever is the smaller) of total dust less than 1% SiO2 |
| Conversion factors. mppcf X 35.3 = million particles per cubic meter = particles per c.c. |
CFR# 1926.56 - Illumination.
(a) General. Construction areas, ramps, runways, corridors, offices, shops, and storage areas shall be lighted to not less than the minimum illumination intensities listed in Table D-3 while any work is in progress:
(b) Other areas. For areas or operations not covered above, refer to the American National Standard A11.1-1965, R1970, Practice for Industrial Lighting, for recommended values of illumination.
CFR# 1926.57 - Ventilation.
(a) General. Whenever hazardous substances such as dusts, fumes, mists, vapors, or gases exist or are produced in the course of construction work, their concentrations shall not exceed the limits specified in 1926.55(a). When ventilation is used as an engineering control method, the system shall be installed and operated according to the requirements of this section.
CFR# 1926.59 - Hazard communication.
Note: The requirements applicable to construction work under this section are identical to those set forth at 29 CFR 1910.1200 (General Industry Standards).
CFR# 1926.62 - Lead.
Note: The requirement applicable to residential construction activities involving exposure to lead are found in the full text of the stantard, 29 CFR 1926.62 (Lead).
| Foot- Candles | Area of Operation |
| 5 | General construction area lighting. |
| 3 | General construction areas, concrete placement, excavation and waste areas, access ways, active storage areas, loading platforms, refueling, and field maintenance areas. |
| 5 | Indoors: warehouses, corridors, hallways, and exitways. |
| 5 | Tunnels, shafts, and general underground work areas: (Exception: minimum of 10 foot-candles is required at tunnel and shaft heading during drilling, mucking, and scaling. Bureau of Mines approved cap lights shall be acceptable for use in the tunnel heading) |
| 10 | General construction plant and shops (e.g., batch plants, screening plants, mechanical and electrical equipment rooms, carpenter shops, rigging lofts and active store rooms, mess halls, and indoor toilets and workrooms.) |
| 30 | First aid stations, infirmaries, and offices. |
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Interesting Reads:
THE PREPPER'S CANNING & PRESERVING BIBLE: [13 in 1] Your Path to Food Self-Sufficiency. Canning, Dehydrating, Fermenting, Pickling & More, Plus The Food Preservation Calendar for a Sustainable Pantry
The Backyard Homestead: Produce all the food you need on just a quarter acre! Paperback
The Citizens' Guide to Geologic Hazards: A Guide to Understanding Geologic Hazards Including Asbestos, Radon, Swelling Soils, Earthquakes, Volcanoes
The Uninhabitable Earth: Life After Warming
Book: The Sixth Extinction: An Unnatural History Paperback
