OCCUPATIONAL HEALTH REGULATIONSEffective November 1, 1986
ILLUMINATION
TABLE 1-Seeing Tasks | |
---|---|
Lux (Footcandles) in Service On Task or 30” Above Floor | |
(a)
Finest precision work Covering: Finest Detail, Poor Contrasts, Long periods of time, i.e. Extra fine assembly, precision grading, Extra fine finishing and inspection. | 2,153 – 10,764 lx. (200 – 1000 footcandles) |
(b)
Precision work Covering: Fine detail, Fair contrast, Lengthy period of time, i.e. Fine assembly, high speed work, Fine finishing and inspection. | 1076 lx. (100 footcandles) |
(c)
Accurate seeing tasks – continuous Covering Fine detail, Moderate contrasts, Lengthy periods of time, i.e. Ordinary bench work and assembly, Machine shop work, Medium finishing of parts, Garment mfg., laundry – spotting & repairs, Food processing, Inspection areas, Printing, Laboratories | 538 lx. (50 footcandles) |
(d)
Ordinary seeing tasks Covering: Moderately fine detail, Normal contrasts, Intermittent periods of time, i.e. Automatic machine operation areas, Rough grinding, garage work areas, Continuous processes, packing & shipping areas, Steel fabrication, welding, Lunchrooms, Washrooms, Foundries, Sawmills - shingle mills - plywood plants. | 323 lx. (30 footcandles) |
(e) Casual seeing tasks i.e. Restrooms, Stairways, active storage. (Active storage buildings exempt from provision of shielding) | 108 lx. (10 footcandles) |
(f) Simple seeing tasks (exempt from provion of shielding) i.e. Hallways, Passageways, Inactive Storage. | 54 lx. (5 footcandles) |
Table 2. Brightness Ratios | |
---|---|
5 to 1 | between tasks and adjacent surroundings. |
20 to 1 | between tasks and more remote surfaces. |
40 to 1 | between luminaires(or sky) and surfaces adjacent to them. |
80 to 1 | anywhere within the environment of the worker. |
Table 3. Reflectance Values | ||
---|---|---|
Reflection Factor (%) | ||
Surface | Not Less Than | Not More Than |
Ceiling | 50 | 90 |
Walls | 40 | 60 |
Surface at task level | 25 | 45 |
Machine and equipment | 25 | 45 |
Floors | 10 | 20 |
Table 4. Seeing Tasks | |
---|---|
Lux (Footcandles) in Service on Task or 30" Above Floor | |
Very
difficult i.e. Cartography, designing, drafting, plan reading, time tables |
2153 lx. (200 footcandles) |
Difficult i.e. Regular office work involving: operation of business machines, stenography, accounting, typing, active filing, clerking, billing, continuous reading and writing tasks. Store check-out counters. |
1076 lx. (100 footcandles) |
Ordinary i.e. Conference and interviewing rooms, washrooms, inactive filing, switchboard and reception, desk areas with no office work involved, shop retail sales areas. |
323 lx. (30 footcandles) |
Casual
seeing tasks i.e. Restrooms, corridors, stairways. |
215 lx. (20 footcandles) |
Table 5. Brightness Ratios | |
---|---|
3 to 1 | between tasks and adjacent surroundings. |
10 to 1 | between tasks and darker surfaces. |
20 to 1 | between luminaires (or windows) and surfaces adjacent to them. |
40 to 1 | anywhere within the environment of the worker. |
Table 6. Reflectance Values | ||
---|---|---|
Reflection Factor (%) | ||
Surface | Not Less Than | Not More Than |
Ceiling finishes | 70 | 90 |
Walls | 40 | 60 |
Furniture | 25 | 45 |
Office machines and equipment | 25 | 45 |
Floors | 15 | 30 |
NOISE CONTROL
Steady State Noise | |
---|---|
Noise Level (dBA) | Maximum Daily Exposure Time Without Hearing Protection (Hours) |
85 | 8 |
88 | 4 |
91 | 2 |
94 | 1 |
97 | 1/2 |
100 | 1/4 |
over 103 | 0 |
Impact Noise | |
---|---|
Peak Sound Pressure Level (dB) | Maximum Number of Impacts per 24-Hour Period |
118 | 14400 |
121 | 7200 |
124 | 3600 |
127 | 1800 |
130 | 900 |
133 | 450 |
136 | 225 |
139 | 112 |
140 | 90 |
over 140 | 0 |
Peak Sound Pressure Level (dB) | Maximum Number of Impacts per 24-Hour Period |
---|---|
over 135 | 0 |
135 | 90 |
134 | 112 |
131 | 225 |
128 | 450 |
125 | 900 |
122 | 1800 |
119 | 3600 |
116 | 7200 |
113 | 14400 |
Octave-Band Centre Frequency (HZ) | Octave-Band Sound Pressure Level (Decibels) |
---|---|
500 | 30 |
1000 | 30 |
2000 | 35 |
4000 | 42 |
8000 | 45 |
VENTILATION
THERMAL ENVIRONMENT
SPACE ALLOTMENT
HEAT STRESS
Thermal index averaged over a 2 hour period | ||||
---|---|---|---|---|
WORK ACTIVITY | Low Air Velocity (less than 300 rpm or 91 m/min) | High Air Velocity (above 300 rpm or 91 m/min) | ||
WBGT | WGT | WBGT | WGT | |
Light Work Sitting at ease: light hand work (writing, typing, drafting, bookkeeping); hand and arm (small bench tools, assembly, sorting) arm and leg work (operating foot switch or pedal, driving a car). Standing: drill press for small parts; milling machine for small parts; light power tools; casual walking. | 30°C (86°F) | 26°C (79°F) | 32°C (90°F) | 28°C (82°F) |
Moderate Work Hand and arm work (nailing, filing); arm and leg work (tractors, construction equipment); air hammer; heavy assembly; picking fruits and vegetables. | 28°C (82°F) | 24°C (75°F) | 31°C (87°F) | 27°C (81°F) |
Heavy Work Shovelling, sledge hammer work; sawing, planing; digging; axe work; pushing or pulling heavy loads; concrete block laying. | 26°C (79°F) | 22°C (72°F) | 29°C (84°F) | 25°C (77°F) |
HAZARDOUS SUBSTANCES
POISONOUS SUBSTANCES
OXIDIZING SUBSTANCES
MEDICAL EXAMINATIONS
AIR CONTAMINANTS
INORGANIC LEAD
SCHEDULE 1-LEAD IN URINE (corrected to a Specific Gravity of 1.024) (Exposure to Inorganic Lead) | |
Lead in Urine (micrograms/litre) | Action Necessary |
---|---|
Less than 150 | Recheck within 3 months |
150 - 200 | Recheck within 6 weeks |
More than 200 |
(a) Recheck within one month (b) Blood lead analysis within 15 days and refer to Schedule 2. |
SCHEDULE 2-LEAD IN BLOOD (Exposure to Inorganic Lead) | |
Lead in Blood (micrograms/100 millitres) | Action Necessary |
---|---|
Less than 70 | Recheck within one year |
70 - 80 |
(a) Advise worker of potential danger and corrective measures. (b) Recheck blood lead within 3 months |
More than 80 |
(a) Immediately reduce lead exposure (b) Medical interview and recheck blood lead within one month (c) If symptoms of lead poisoning are absent, consideration of removal of worker from further exposure to lead. (d) If symptoms of lead poisoning are present, worker shall not be further exposed to lead until sign and symptom free and blood lead is less than 70 micrograms per 100 millitres of blood. |
ORGANIC LEAD
Schedule 3. LEAD IN URINE (corrected to a Specific Gravity of 1.024) (Exposure to Organic Lead) | |
Lead in Urine (micrograms/litre) | Action Necessary |
---|---|
Less than 140 | Recheck within one month |
140 - 160 | Reduce exposure and recheck within one week |
More than 160 |
(a) Remove from further exposure (b) Recheck result within one week (c) Medical examination within one week (d) Consideration of return to work. |
MERCURY (EXCEPT FOR ALKYL MERCURY COMPOUNDS)
Schedule 4. MERCURY IN URINE (corrected to a Specific Gravity of 1.024) (Except for exposure to Alkyl Mercury Compounds) | |
Mercury in Urine (micrograms/litre) | Action Necessary |
---|---|
Less than 250 | Recheck within 3 months |
250 - 500 | Recheck within one month and if confirmed reduce further mercury exposure until urinary mercury level is less than 250 micrograms per litre |
More than 500 |
(a) Immediately reduce mercury exposure (b) Medical interview and recheck urinary mercury within one month (c) If symptoms of mercury poisoning are absent, consideration of removal of worker from further exposure (d) If symptoms of mercury poisoning are present, worker shall not be further exposed to mercury until sign and symptom free and urinary mercury is less than 200 micrograms per litre. |
ALKYL MERCURY COMPOUNDS
Schedule 5. MERCURY IN URINE (corrected to a Specific Gravity of 1.024) (Exposure to Alkyl Mercury Compounds) | |
Mercury in Urine (micrograms/litre) | Action Necessary |
---|---|
Less than 40 | Recheck within one month |
More than 40 |
(a) Immediately reduce mercury exposure (b) Medical interview and recheck within 15 days (c) If symptoms of mercury poisoning are absent, consideration of removal of worker from further exposure (d) If symptoms of mercury poisoning are present, worker shall not be further exposed to mercury until sign and symptom free and urine mercury is less than 20 micrograms per litre. |
ASBESTOS CONTROL
SILICA
RADON GAS
TABLE 7 Maximum Acceptable Body Burdens | ||
---|---|---|
Maximum Concentration | ||
Blood ug/100mL | Urine ug/L | |
Arsenic | 50 | 1500 |
Cadmium | 10 | 35 |
Lead | ||
Inorganic | 80 | 200 |
Alkyl compounds | - | 160 |
Manganese | - | 75 |
Mercury | ||
Inorganic | - | 500 |
Alkyl compounds | - | 40 |
Vanadium | - | 150 |
Selenium. | - | 300 |
Fluoride | - | 5000 |
Carbon monoxide | 10% as carboxyhaemoglobin | - |
TABLE 8 Permissible Concentrations for Airborne Contaminant Substances | ||||
---|---|---|---|---|
ppm = parts of vapour or gas per million parts of contaminated
air by volume at 25°C and 760 mm mercury pressure. mg/m3 = approximate miligrams of material per cubic meter of air. | ||||
Permissible Concentrations | ||||
8-hour Limit | 15-minute Limit | |||
ppm | mg/m3 | ppm | mg/m3 | |
Abate | 10 | - | 20 | |
Acetaldehyde | 100 | 180 | 150 | 270 |
Acetic Acid | 10 | 25 | 25 | 43 |
C Acetic anhydride | 5 | 20 | - | - |
Acetone | 1,000 | 2,400 | 1,250 | 3,000 |
Acetonitrile | 40 | 70 | 60 | 105 |
Acetylene | (See Table 7) | |||
Acetylene dichloride, see 1,2-Dichloroethylene | 200 | 790 | 250 | 1,000 |
Acetylene tetrabromide | 1 | 14 | 1.25 | 18 |
Acrolein | 0.1 | 0.25 | 0.3 | 0.8 |
Acrylamide - Skin | - | 0.3 | - | 0.6 |
K Acrylonitrile - Skin | (See Table 14) | |||
Aldrin - Skin | - | 0.25 | - | 0.75 |
Aliphatic solvent "140 Flash" | 25 | 150 | 37 | 225 |
Allyl alcohol - Skin | 2 | 5 | 4 | 10 |
Allyl chloride | 1 | 3 | 2 | 6 |
Allyl glycidyl ether (AGE) - Skin | 5 | 22 | 10 | 44 |
Allyl propyl disulphide | 2 | 12 | 3 | 18 |
Alundum (Al2O3) | (See Table 11) | |||
K 4-Aminodiphenyl - Skin | (See Table 15) | |||
2-Aminoethanol, see Ethanolamine | 3 | 6 | 6 | 1 2 |
2-Aminipyridine | 0.5 | 2 | 1.5 | 6 |
Ammonia | 25 | 18 | 40 | 30 |
Ammonium chloride - fume | - | 10 | - | 20 |
Ammonium sulphamate (Ammate) | - | 10 | - | 20 |
¶-Amyl acetate | 100 | 525 | 150 | 780 |
sec-Amyl acetate | 125 | 650 | 150 | 810 |
Aniline (O-, p-isomers) - Skin | 5 | 19 | 5 | 19 |
Anisidine (O-, p-isomers) - Skin | 0.1 | 0.5 | 0.1 | 0.5 |
Antimony and compunds (as Sb) | - | 0.5 | - | 0.75 |
K Antimony trioxide production (as Sb) | (See Table 14) | |||
ANTU (a-Naphthyl thiourea) | - | 0.3 | - | 0.9 |
Argon | (See Table 12) | |||
Arsenic and compounds (as As) | - | 0.5 | - | 0.5 |
K Arsenic trioxide productin (as As) | (See Table 14) | |||
Arsine | 0.05 | 0.2 | 0.05 | 0.2 |
K Asbestos (all forms) | (See Table 10) | |||
Asphalt (petroleum) fumes | - | 5 | - | 10 |
Atrazine | - | 10 | - | 15 |
Azinphos-methyl - Skin | - | 0.2 | - | 0.6 |
Barium (soluble compounds) (as Ba) | - | 0.5 | - | 0.5 |
Baygon (Propoxur) | - | 0.5 | - | 2 |
K Benzene | (See Table 14) | |||
K Benzidine production - Skin | (See Table 15) | |||
p-Benzoquinone, see Quinone | 0.1 | 0.4 | 0.3 | 1.2 |
Benzoyl peroxide | - | 5 | - | 5 |
K Benz(a)pyrene | (See Table 14) | |||
Benzyl chloride | 1 | 5 | 1 | 5 |
K Beryllium | (See Table 14) | |||
Biphenyl | 0.2 | 1 | 0.2 | 1 |
C Bisphenol A, see Diglycidal ether (DGE) | 0.05 | 2.8 | - | - |
Bismuth telluride | - | 10 | - | 20 |
Bismuth telluride (Selinium-doped) | - | 5 | - | 10 |
Boron oxide | - | 10 | - | 20 |
Boron tribromide | 1 | 10 | 3 | 30 |
C Boron trifluoride | 1 | 3 | - | - |
Bromine | 0.1 | 0.7 | 0.3 | 2 |
Bromine pentafluoride | 0.1 | 0.7 | 0.3 | 2 |
Bromochloromethane/chlorobromomethane | 200 | 1,050 | 250 | 1,300 |
Bromoform - Skin | 0.5 | 5 | 0.5 | 5 |
Butadiene (1,3-butadiene) | 1,000 | 2,200 | 1,250 | 2,750 |
Butane | 600 | 1,400 | 750 | 1,600 |
Butanethiol, see Butyl mercaptan | (See Table 9) | |||
2-Butanone | 200 | 590 | 250 | 740 |
2-Butoxyethanol (Butyl cellosolve) - Skin | 50 | 240 | 150 | 720 |
¶-Butyl acetate | 150 | 710 | 200 | 950 |
sec-Butyl acetate | 200 | 950 | 250 | 1,180 |
tert-Butyl acetate | 200 | 950 | 250 | 1,180 |
Butyl acrylate | 10 | 55 | 15 | 82 |
C ¶-Butyl alcohol - Skin | 50 | 150 | - | - |
sec-Butyl alcohol | 150 | 450 | 150 | 450 |
tert-Butyl alcohol | 100 | 300 | 150 | 450 |
C Butylamine - Skin | 5 | 15 | - | - |
C tert-Butyl chromate (as CrO3) - Skin | - | 0.1 | - | - |
¶-Butyl glycidyl ether (BGE) | 50 | 270 | 75 | 400 |
¶-Butyl lactate | 5 | 25 | 5 | 25 |
Butyl mercaptan | (See Table 9) | |||
p-tert Butyltoluene | 10 | 60 | 20 | 120 |
Cadmium, dust and salts (as Cd) | - | 0.05 | - | 0.15 |
C Cadmium oxide fume (as Cd) | - | 0.05 | - | - |
K Cadmium oxide production (as Cd) | (See Table 14) | |||
Calcium carbonate/marble | (See Table 11) | |||
Calcium arsenate (as As) | - | 1 | - | 3 |
Calcium cyanamide | - | 0.5 | - | 1 |
Calcium hydroxide | - | 5 | - | 10 |
Calcium oxide | - | 2 | - | 4 |
Calcium silicate | (See Table 11) | |||
Camphor, synthetic | 2 | 12 | 3 | 18 |
Caprolactam - | ||||
Dust | - | 1 | - | 3 |
Vapour | 5 | 20 | 10 | 40 |
Captan | - | 5 | - | 15 |
Carbaryl (Sevin R) | - | 5 | - | 10 |
Carbofuran (Furadan R) | - | 0.1 | - | 0.1 |
Carbon black | - | 3.5 | - | 7 |
Carbon dioxide | 5,000 | 9,000 | 15,000 | 27,000 |
Carbon disulphide - Skin | 20 | 60 | 30 | 90 |
Carbon monoxide | 50 | 55 | 400 | 440 |
Carbon tetrabromide | 0.1 | 1.4 | 0.3 | 4 |
Carbon tetrachloride - Skin | 10 | 65 | 20 | 130 |
C Carbonyl chloride (phosgene) | 0.05 | 0.2 | - | - |
Carbonyl fluoride | 5 | 15 | 10 | 30 |
Cellulose (paper fibre) | (See Table 11) | |||
Cesium hydroxide | - | 2 | - | 2 |
Chlordane - Skin | - | 0.5 | - | 1.5 |
Chlorinated camphene - Skin | - | 0.5 | - | 1 |
Chlorinated diphenyl oxide | - | 0.5 | - | 2 |
Chlorine | 1 | 3 | 3 | 9 |
Chlorine dioxide | 0.1 | 0.3 | 0.3 | 0.9 |
C Chlorine trifluoride | 0.1 | 0.4 | - | - |
C Chloroacetaldehyde | 1 | 3 | - | - |
a-Chloroacetophenone (Phenacyl chloride) | 0.05 | 0.3 | 0.05 | 0.3 |
Chlorobenzene (Monochlorobenzene) | 75 | 350 | 75 | 350 |
o-Chlorobenzylidene malonitrile - Skin | 0.05 | 0.4 | 0.05 | 0.4 |
Chlorobromomethane/Bromochloromethane | 200 | 1,050 | 250 | 1,300 |
2-Chloro-1,3-butadiene, see B-Chloroprene - Skin | 25 | 90 | 35 | 125 |
Chlorodifluoromethane | 1,000 | 3,500 | 1,250 | 4,375 |
Chlorodiphenyl (42% Chlorine) - Skin | - | 1 | - | 2 |
Chlorodiphenyl (54% Chlorine) - Skin | - | 0.5 | - | 1 |
1-Chloro,2,3-epoxy-propane (Epichlorhydrin)) - Skin | 5 | 20 | 10 | 40 |
2-Chloroethanol (Ethylene chlorohydrin) - Skin | 1 | 3 | 1 | 3 |
K Chloroethylene (Vinyl chloride) | (See Table 14) | |||
K Chloroform (Trichloromethane) | (See Table 14) | |||
K bis-Chloromethyl ether | (See Table 14) | |||
1, Chloro-1-nitro-propane | 20 | 100 | 20 | 100 |
Chloropierin | 0.1 | 0.7 | 0.1 | 0.7 |
B-Chloroprene - Skin | 25 | 90 | 35 | 135 |
Chlorpyrifos (Dursban R) - Skin | - | 0.2 | - | 0.6 |
o-Chlorostyrene | 50 | 285 | 75 | 420 |
o-Chlorotoluene - Skin | 50 | 250 | 75 | 375 |
2-Chloro-6-(trichloromethyl pyridine (N-Serve R) | - | 10 | - | 20 |
Chromic acid and chromates (asCrO3)) | - | 0.1 | - | 0.1 |
K Chromite ore processing (chromate) (as Cr) | (See Table XIV) | |||
Chromium - | ||||
Soluble chromic chromous salts (as Cr) | - | 0.5 | - | 1.5 |
Metal and insoluble salts | - | 0.1 | - | 3.0 |
Clopidol (Coyden R) | - | 10 | - | 20 |
Coal dust | (See Table 10) | |||
K Coal tar pitch volatiles (see Particulate polycyclic aromatic hydrocarbons) | (See Table 14) | |||
Cobalt metal, dust and fume (as Co) | - | 0.05 | - | 0.15 |
Copper - Fume | - | 0.2 | - | 0.2 |
Dusts and mists (as Cu) | - | 1 | - | 2 |
Corundum (A12O3)) | (See Table 11) | |||
Cotton dust raw | - | 0.2 | - | 0.6 |
Crag R herbicide | - | 10 | - | 20 |
Cresol, all isomers - Skin | 5 | 22 | 5 | 22 |
Crotonaldehyde | 2 | 6 | 6 | 18 |
Crufomate R | - | 5 | - | 20 |
Cumene - Skin | 50 | 245 | 75 | 365 |
Cyanide (as CN) - Skin | - | 5 | - | 5 |
Cyanogen | 10 | 20 | 10 | 20 |
Cyclohexane | 300 | 1,050 | 375 | 1,300 |
Cyclohexano | 50 | 200 | 50 | 200 |
Cyclohexanone | 50 | 200 | 50 | 200 |
Cyclohexene | 300 | 1,015 | 300 | 1,015 |
Cyclohexylamine - Skin | 10 | 40 | 10 | 40 |
Cyclopentadiene | 75 | 200 | 150 | 400 |
2,4-D (2,4-Diphenoxy-acetic acid) | - | 10 | - | 20 |
DDT (Dichlorodiphenyl-trichloroethane) | - | 1 | - | 3 |
DDVP, see Dichlorvos - Skin | 0.1 | 1 | 0.3 | 3 |
Decaborane - Skin | 0.05 | 0.3 | 0.15 | 0.9 |
Demeton R - Skin | 0.01 | 0.1 | 0.03 | 0.3 |
Diacetone alcohol (r-hydroxy-r-methyl- 2-pentanone) | 50 | 240 | 75 | 360 |
1,2-Diaminoethane, see Ethylenediamine | 10 | 25 | 10 | 25 |
Diazinon - Skin | - | 0.01 | - | 0.03 |
Diazomethane | 0.2 | 0.4 | 0.2 | 0.4 |
Diborane | 0.1 | 0.1 | 0.1 | 0.1 |
K 1,2-Dibromoethane (Ethylene dibromide) - Skin | (See Table XIV) | |||
Dibrom R | - | 3 | - | 6 |
2-N-Dibutylaminoethanol - Skin | 2 | 14 | 4 | 28 |
Dibutyl phosphate | 1 | 5 | 2 | 10 |
Dibutyl phthalate | - | 5 | - | 10 |
C Dichloroacetylene | 0.1 | 0.4 | - | - |
C o-Dichlorobenzene | 50 | 300 | - | - |
75 | 450 | 110 | 675 | |
K 3,3-Dichlorobenzidine - Skin | (See Table 15) | |||
Dichlorodifluoromethane | 1,000 | 4,950 | 1,250 | 6,200 |
1,3-Dichloro-5, 5-dimethyl hydantoin | - | 0.2 | - | 0.4 |
1,1-Dichloroethane | 200 | 810 | 250 | 1,012 |
1,2-Dichloroethane | 50 | 200 | 75 | 300 |
1,2-Dichloroethylene | 200 | 790 | 250 | 1,000 |
Dichloroethyl ether - Skin | 5 | 30 | 10 | 60 |
Dichloromethane, see Methylene chloride | 200 | 720 | 200 | 720 |
Dichloromonofluoromethane | 500 | 2,100 | 625 | 2,625 |
C 1,1-Dichloro-1-nitroethane | 10 | 60 | - | - |
1,2-Dichloropropane, see Propylene dichloride | 75 | 350 | 115 | 525 |
Dichloroetetrafluoroethane | 1,000 | 7,000 | 1,250 | 8,750 |
Dichlorvos (DDVP) - Skin | 0.1 | 1 | 0.3 | 3 |
Dicyclopentadiene | 5 | 30 | 5 | 30 |
Dicyclopentadienyl iron | - | 10 | - | 20 |
Dieldrin - Skin | - | 0.25 | - | 0.75 |
Diethylamine | 25 | 75 | 25 | 75 |
Diethylaminoethanol - Skin | 10 | 50 | 10 | 50 |
Diethylene triamine - Skin | 1 | 4 | 1 | 4 |
Diethyl ether, see Ethyl ether | 400 | 1,200 | 500 | 1,500 |
Diethyl phthalate | - | 5 | - | 10 |
Difluorodibromomethane | 100 | 860 | 150 | 1,290 |
C Diglycidyl ether (DGE) | 0.5 | 2.8 | - | - |
Dihydroxybenzene, see Hydroquinone | - | 2 | - | 3 |
Diisobutyl ketone | 25 | 150 | 25 | 150 |
Diisopropylamine - Skin | 5 | 20 | 5 | 20 |
Dimethoxymethane, see Methylal | 1,000 | 3,100 | 1,250 | 3,875 |
Dimethyl acetamide - Skin | 10 | 35 | 15 | 50 |
K Dimethyl carbamyl chloride | (See Table 16) | |||
Dimethylamine | 10 | 18 | 10 | 18 |
Dimethylaminobenzene, see Xylidene - Skin | 5 | 25 | 10 | 50 |
Dimethylaniline (N,N-Dimethylaniline) - Skin | 5 | 25 | 10 | 50 |
Dimethylbenzene, see Xylene - Skin | 100 | 435 | 150 | 650 |
Dimethyl-1, 2-dibromo-2-dichloroethyl phosphate, see Dibrom R-3-6 | ||||
Dimethylformamide - Skin | 10 | 30 | 20 | 60 |
2,6-Dimethyl-4-heptanone, see Diisobutyl ketone | 25 | 150 | 25 | 150 |
1,1-Dimethylhydrazine - Skin | 0.5 | 1 | 1 | 2 |
Dimethylphathalate | - | 5 | - | 10 |
K Dimethyl sulphate - Skin | (See Table 14) | |||
Dinitrobenzene (all isomers) - Skin | 0.15 | 1 | 0.5 | 3 |
Dinitro-o-cresol - Skin | - | 0.2 | - | 0.6 |
3,5-Dinitro-o-toluamide (Zoalene R) | - | 5 | - | 10 |
Dinitrotoluene - Skin | - | 1.5 | - | 5 |
Dioxane, tech. grade - Skin | 50 | 180 | 50 | 180 |
Diphenyl, see Biphenyl | 0.2 | 1 | 0.6 | 3 |
Diphenylamine | - | 10 | - | 20 |
C Diphenylmethane diisocyanate, see Methylene bisphenyl isocyanate (MDI) | 0.02 | 0.2 | - | - |
Dipropylene glycol methyl ether - Skin | 100 | 600 | 150 | 900 |
Diquat (Reglone R) | - | 0.5 | - | 1 |
Di-sec, octyl phthalate (Di-2-ethyl-hexylphthalate | - | 5 | - | 10 |
Disulphuram | - | 2 | - | 5 |
Disyston - Skin | - | 0.1 | - | 0.3 |
2,6-Ditert, butyl-p-cresol | - | 10 | - | 20 |
Dyfonate | - | 0.1 | - | 0.1 |
Emery | (See Table 11) | |||
Endosulphan (Thiodan R) - Skin | - | 0.1 | - | 0.3 |
Endrin - Skin | - | 0.1 | - | 0.3 |
K Epichlorhydrin - Skin | (See Table 14) | |||
EPN - Skin | - | 0.5 | - | 2 |
1,2-Epoxypropane, see Propylene oxide | 100 | 240 | 150 | 360 |
2,3-Epoxy-1-propanol, see Glycidol | 50 | 150 | 75 | 225 |
Ethane | (See Table 12) | |||
Ethanethiol, see Ethyl mercaptan | (See Table 9) | |||
Ethanolamine | 3 | 6 | 6 | 12 |
Ethion (Nialate R) - Skin | - | 0.4 | - | 0.4 |
2-Ethoxyethanol - Skin | 100 | 370 | 150 | 560 |
2-Ethoxyethyl acetate (Cellosolve acetate) - Skin | 100 | 540 | 150 | 810 |
Ethyl acetate | 400 | 1,400 | 400 | 1,400 |
Ethyl acrylate - Skin | 25 | 100 | 25 | 100 |
Ethyl alcohol (Ethanol) | 1,000 | 1,900 | 1,000 | 1,900 |
Ethylamine | 10 | 18 | 10 | 18 |
Ethyl sec-amyl ketone (4-Methyl-3-heptanone) | 25 | 130 | 25 | 130 |
Ethyl benzene | 100 | 435 | 125 | 545 |
Ethyl bromide | 200 | 890 | 250 | 1,110 |
Ethylbutyl ketone (3-Heptanone) | 50 | 230 | 75 | 345 |
Ethyl chloride | 1,000 | 2,600 | 1,250 | 3,250 |
Ethyl ether | 400 | 1,200 | 500 | 1,500 |
Ethyl formate | 100 | 300 | 150 | 450 |
Ethyl mercaptan | (See Table 9) | |||
Ethyl silicate | 100 | 850 | 150 | 1,275 |
Ethylene | (See Table 12) | |||
C Ethylene chlorohydrin - Skin | 1 | 3 | - | - |
Ethylenediamine | 10 | 25 | 10 | 25 |
Ethylene dibromide, see 1,2-Dibromoethane | 20 | 145 | 30 | 220 |
Ethylene dichloride, see 1,2-Dichloroethane | 50 | 200 | 75 | 300 |
Ethylene glycol - | ||||
Particulate | - | 10 | 10 | 20 |
Vapour | 100 | 250 | 125 | 325 |
C Ethylene glycol dinitrate and/or Nitroglycerin - Skin | 0.2 | - | - | - |
Ethylene glycol monomethyl ether acetate (Methylcellosolve acetate) - Skin | 25 | 120 | 35 | 150 |
Ethylene oxide | 50 | 90 | 75 | 135 |
Ethylenimine - Skin | 0.5 | 1 | 0.5 | 1 |
Ethylidene chloride, see 1,1-Dichloroethane | 200 | 810 | 250 | 1,010 |
C Ethylidene norbornene | 5 | 25 | 10 | 50 |
N-Ethylmorpholine - Skin | 20 | 95 | 20 | 94 |
Fensulphorthion (Dasanit R) | - | 0.1 | - | 0.1 |
Farbam | - | 10 | - | 20 |
Ferrovanadium dust | - | 1 | - | 3 |
Fluoride (as F) | - | 2.5 | - | 2.5 |
Fluorine | 1 | 2 | 2 | 4 |
Fluorotrichloromethane | 1,000 | 5,600 | 1,250 | 7,000 |
C Formaldehyde | 2 | 3 | - | - |
Formamide | 20 | 30 | 30 | 45 |
Formic acid | 5 | 9 | 5 | 9 |
Furfural - Skin | 5 | 20 | 15 | 60 |
Furfuryl alcohol - Skin | 5 | 20 | 10 | 40 |
Gasoline | (See Table 9) | |||
Germanium tetrahydride | 0.2 | 0.6 | 0.6 | 1.8 |
Glass, fibrous or dust | (See Table 11) | |||
C Glutaraldehyde, activated or unactivated | - | 0.25 | - | - |
Blycerin mist | (See Table 11) | |||
Clycidol (2,3-Eposy-1-propanol) | 50 | 150 | 65 | 190 |
Glycol monoethyl ether, see 2-Ethoxyethanol - Skin | 100 | 370 | 150 | 560 |
Graphite (synthetic) | (See Table 11) | |||
GuthionR, see Azinpho-methyl - Skin | - | 0.2 | - | 0.6 |
Gypsum | (See Table 11) | |||
Hafnium | - | 0.5 | - | 1.5 |
Helium | (See Table 12) | |||
Heptachlor - Skin | - | 0.5 | - | 1.5 |
Heptane (n-Heptane) | 400 | 1,600 | 500 | 2,000 |
Hexachlorocyclopentadiene | 0.01 | 0.11 | 0.03 | 0.33 |
Hexachloroethane - Skin | 1 | 10 | 3 | 30 |
Hexachloronaphthalene - Skin | - | 0.2 | - | 0.6 |
Hexafluoroacetone | 0.1 | 0.7 | 0.3 | 2.1 |
Hexane (n-hexane) | 100 | 360 | 125 | 450 |
K Hexamethyl phosphoramide - Skin | (See Table 16) | |||
2-Hexanone, see Methyl butyl ketone - Skin | 25 | 100 | 40 | 150 |
Hexone (Methyl isobutyl ketone) - Skin | 100 | 410 | 125 | 510 |
sec-Hexyl acetate | 50 | 300 | 50 | 300 |
K-Hydrazine - Skin | (See Table 16) | |||
Hydrogen | (See Table 12) | |||
Hydrogenated terphenyls | 0.5 | 5 | 0.5 | 5 |
Hydrogen bromide | 3 | 10 | 3 | 10 |
C Hydrogen chloride | 5 | 7 | - | - |
Hydrogen cyanide - Skin | 10 | 11 | 15 | 16 |
Hydrogen fluoride | 3 | 2 | 3 | 2 |
Hydrogen peroxide | 1 | 1.5 | 2 | 2.8 |
Hydrogen selenide | 0.05 | 0.2 | 0.05 | 0.2 |
Hydrogen sulphide | 10 | 15 | 15 | 27 |
Hydroquinone | - | 2 | - | 3 |
Indene | 10 | 45 | 15 | 70 |
Indium and compounds (as In) | - | 0.1 | - | 0.3 |
C Iodine | 0.7 | 1 | 1 | 1 |
Iodoform | 0.2 | 3 | 0.4 | 6 |
Iron oxide fume (as Fe203)) | - | 5 | - | 10 |
Iron pentacarbonyl | 0.01 | 0.08 | 0.01 | 0.08 |
Iron salts, soluble (as Fe) | - | 1 | - | 2 |
Isomyl acetate | 100 | 525 | 125 | 655 |
Isoamyl alcohol | 100 | 360 | 125 | 450 |
Isobutyl acetate | 150 | 700 | 187 | 875 |
Isobutyl alcohol | 50 | 150 | 75 | 225 |
C Isophorone525— | ||||
Isopropyl acetate | 250 | 950 | 310 | 1,185 |
Isopropyl alcohol - Skin | 400 | 980 | 500 | 1,225 |
Isopropylamine | 5 | 12 | 10 | 24 |
Isopropyl ether | 250 | 1,050 | 310 | 1,320 |
Isopropyl clycidyl ether (IGE) | 50 | 240 | 75 | 360 |
Kaolin | (See Table 11) | |||
Ketene | 0.5 | 0.9 | 1.5 | 2.7 |
Lead, inoganic, fumes and dusts (as Pb) | - | 0.15 | - | 0.45 |
Lead arsenate (as Pb) | - | 0.15 | - | 0.45 |
K Lead chromate (as Cr) | (See Table 14) | |||
Limestone | (See Table 11) | |||
Lindane - Skin | - | 0.5 | - | 1.5 |
Lithium hydride | - | 0.025 | - | 0.025 |
L.P.G. (Liquified petroleum gas) | 1,000 | 1,800 | 1,250 | 2,250 |
Magnesite | (See Table 11) | |||
Magnesium oxide fume (as Mg) | - | 10 | - | 10 |
Malathion - Skin | - | 10 | - | 10 |
Maleic anhydride | 0.25 | 1 | 0.25 | 1 |
C Manganese and compounds (as Mn) | - | 5 | - | - |
Manganese cyclopentadienyl tricarbonyl ( as Mn) - Ski | - | 0.1 | - | 0.3 |
Marble/calcium carbonate | (See Table 11) | |||
Mercury (Alkyl compounds) Skin (as Hg) | 0.001 | 0.01 | 0.003 | 0.03 |
Mercury (all forms except Alkyl) (as Hg) | - | 0.05 | - | 0.15 |
Mesityl oxide | 25 | 100 | 25 | 100 |
Methane | (See Table 12) | |||
Methanethiol, see Methyl mercaptan | (See Table 9) | |||
Methoxychlor | - | 10 | - | 10 |
2-Methoxyethanol - Skin (Methyl cellosolve) | 25 | 80 | 35 | 120 |
Methyl acetate | 200 | 610 | 250 | 760 |
Mehyl acetylene (propyne) | 1,000 | 1,650 | 1,250 | 2,050 |
Methyl acetylene propadiene mixture (MAPP) | 1,000 | 1,800 | 1,250 | 2,250 |
Methyl acrylate - Skin | 10 | 35 | 10 | 35 |
Methylacrylonitrile - Skin | 1 | 3 | 2 | 6 |
Methylal (dimethoxymethane) | 1,000 | 3,100 | 1,250 | 3,875 |
Methyl alcohol (methanol) - Skin | 200 | 260 | 250 | 310 |
Methylamine | 10 | 12 | 10 | 12 |
Methyl amyl alcohol, see Methyl isobutyl carbinol - Skin | 25 | 100 | 40 | 150 |
Methyl 2-cyanoacrylate | 2 | 8 | 4 | 16 |
Methyl isoamyl ketone | 100 | 465 | 150 | 710 |
Methyl m-amyl ketone (2-Heptanone) | 100 | 465 | 150 | 710 |
Methyl bromide - Skin | 15 | 60 | 15 | 60 |
Methyl butyl ketone, see 2-Hexanone - Skin | 25 | 100 | 40 | 150 |
Methyl cellosolve - Skin, see 2-Methoxyethanol | 25 | 80 | 35 | 120 |
Methyl cellosolve acetate - Skin, see Ethylene glycol monomethyl ether acetate | 25 | 120 | 35 | 150 |
Methyl chloride | 100 | 210 | 125 | 260 |
Methyl chloroform (1,1,1-Trichloroethane) | 350 | 1,900 | 440 | 2,400 |
Methylcyclohexane | 400 | 1,600 | 500 | 2,000 |
Methylcyclohexanol | 50 | 235 | 75 | 350 |
o-Methycyclohexanone - Skin | 50 | 230 | 75 | 345 |
Methylcyclopentadienyl manganese tricarbonyl (as Mn) - Skin | 0.1 | 0.2 | 0.3 | 0.6 |
Methyl demeton - Skin | - | 0.5 | - | 1.5 |
C Methylene bisphenyl isocyanate (MDI) | 0.02 | 0.2 | - | - |
Methylene chloride (dichloromethane) | 200 | 700 | 250 | 870 |
K 4, 4’-Methylene (bis (2-chloraniline) - Skin | (See Table 14) | |||
C Methylene bis (r-cyclohexylisocyanate) | 0.01 | 0.11 | - | - |
Methyl ethyl ketone (MEK), see 2-Butanone | 200 | 590 | 250 | 740 |
C Methyl ethyl ketone peroxide | 0.2 | 1.5 | - | - |
Methyl formate | 100 | 250 | 150 | 375 |
Methyl iodide - Skin | 5 | 28 | 10 | 56 |
Methyl isoamyl ketone | 100 | 475 | 150 | 710 |
Methyl isobutyl carbinol - Skin | 25 | 100 | 40 | 150 |
Methyl isobutyl ketone, see Hexone - Skin | 100 | 410 | 125 | 510 |
Methyl isocyanate - Skin | 0.02 | 0.05 | 0.02 | 0.05 |
Methyl mercaptan | (See Table 9) | |||
Methyl methcrylate | 100 | 410 | 125 | 510 |
Methyl parathion - Skin | - | 0.2 | - | 0.6 |
Methyl propyl ketone, see 2-Pentanone | 200 | 700 | 250 | 875 |
N-Methyl-2-pyrrolidone | 100 | 400 | 125 | 500 |
C Methyl silicate | 5 | 30 | - | - |
C a-Methyl styrene | 100 | 480 | - | - |
Mineral wool | (See Table 11) | |||
Molybdenum (as Mo) | ||||
Soluble compounds | - | 5 | - | 10 |
Insoluble compounds | - | 10 | - | 20 |
Monomethyl aniline - Skin | 2 | 9 | 4 | 18 |
Cc Monomethyl hydrazine - Skin | 0.2 | 0.35 | - | - |
Morpholine - Skin | 20 | 70 | 30 | 105 |
Naphtha (coal tar) | 400 | 1,800 | 500 | 2,250 |
Naphthalene | 10 | 50 | 15 | 75 |
K B-Naphthylamine | (See Table 16) | |||
a-Naphthylthiourea (ANTU) | - | 0.3 | - | 0.9 |
Neon | (See Talbe 12) | |||
C Nickel carbonyl | 0.05 | 0.35 | - | - |
Nickel metal and insoluble compounds (as Ni) | - | 1 | - | 3 |
Nickel, soluble compounds (as Ni) | - | 0.1 | 0.3 | |
K Nickel sulphide roasting, fume and dust as (Ni) | (See Table 14) | |||
Nicotine - Skin | - | 0.5 | - | 1.5 |
Nitric acid | 2 | 5 | 4 | 10 |
Nitric oxide | 25 | 30 | 35 | 45 |
p-Nitroaniline - Skin | 1 | 6 | 2 | 12 |
Nitrobenzene - Skin | 1 | 5 | 2 | 10 |
p-Nitrochlorobenzene - Skin | - | 1 | - | 2 |
K 4-Nitrodiphenyl | (See Table 15) | |||
Nitroethane | 100 | 310 | 150 | 465 |
Nitrogen | (See Table 12) | |||
C Nitrogen dioxide | 5 | 9 | - | - |
Nitrogen trifluoride | 10 | 29 | 15 | 45 |
Nitroglycerin - Skin | 0.2 | 2 | 0.2 | 2 |
Nitromethane | 100 | 250 | 150 | 375 |
1-Nitropropane | 25 | 90 | 35 | 135 |
K 2-Nitropropane | (See Table 14) | |||
K N-Nitrosodimethylamine (dimethylnitrosoamine) - Skin | (See Table 16) | |||
Nitrotoluene - Skin | 5 | 30 | 10 | 60 |
Nitrotrichloromethane, see Chloropicrin | 0.1 | 0.7 | 0.1 | 0.7 |
Nonane | 200 | 1,050 | 250 | 1,300 |
Octachloronaphthalene - Skin | - | 0.1 | - | 0.3 |
Octane | 300 | 1,450 | 375 | 1,800 |
Oil mist, mineral | - | 5 | - | 10 |
Osmium tetraoxide (as Os) | 0.0002 | 0.002 | 0.0006 | 0.006 |
Oxalic acid | - | 1 | - | 2 |
Oxygen difluoride | 0.05 | 0.1 | 0.15 | 0.3 |
Ozone | 0.1 | 0.2 | 0.3 | 0.6 |
Paraffin wax fume | - | 2 | - | 6 |
Paraquat, respirable sizes | - | 0.5 | - | 0.5 |
Parathion - Skip | - | 0.1 | - | 0.3 |
K Particulate polycylic aromatic hydrocarbons (PPAH) (as benzene solubles) | (See Table 14) | |||
Pentaborane | 0.005 | 0.01 | 0.015 | 0.03 |
Pentachloronaphthalene | - | 0.5 | - | 1.5 |
Pentachlorophenol - Skin | - | 0.5 | - | 1.5 |
Pentaerythritol | (See Table 11) | |||
Pentane | 600 | 1,800 | 750 | 2,250 |
2-Pentanone | 200 | 700 | 250 | 875 |
Perchloroethyene - Skin | 100 | 670 | 150 | 1,000 |
Perchloryl fluoride | 3 | 14 | 6 | 28 |
Phenol - Skin | 5 | 19 | 10 | 38 |
Phenothiazine - Skin | - | 5 | - | 10 |
p-Phenylene diamine - Skin | - | 0.1 | - | 0.1 |
Phenyl either (vapour) | 1 | 7 | 2 | 14 |
Phenyl ether-Diphenyl mixture (vapour) | 1 | 7 | 2 | 14 |
Phenylethylene, see Styrene, monomer | 100 | 420 | 125 | 525 |
Phenyl glycidyl either (PGE)± | 10 | 60 | 15 | 90 |
Phenyl mercaptan | 3 | 10 | 3 | 10 |
Phenyhydrazine - Skin | 5 | 22 | 10 | 44 |
C Phenylphosphine | 0.05 | 0.25 | - | - |
Phorate (ThimetR) - Skin | - | 0.05 | - | 0.15 |
Phosdrin (MevinphosR) - Skin | 0.01 | 0.1 | 0.03 | 0.3 |
Phosgene (carbonyl chloride) | 0.1 | 0.4 | 0.3 | 1.2 |
Phosphine | 0.3 | 0.4 | 1 | 1 |
Phosphoric acid | - | 1 | 0 | 3 |
Phorosphorus (yellow) | - | 0.1 | - | 0.3 |
Phosphorus pentachloride | - | 1 | - | 3 |
Phosphorus pentasulphide | - | 1 | - | 3 |
Phosphorus trichloride | 0.5 | 3 | 0.5 | 3 |
C Potassium hydroxide | - | 2 | - | - |
Propane | (See Table 12) | |||
K B-Propiolactone | (See Table 16) | |||
Propargyl alcohol - skin | 1 | 2 | 3 | 6 |
¶-Propyl acetate | 200 | 840 | 250 | 1,050 |
Propyl alcohol - Skin | 200 | 500 | 250 | 625 |
¶-Propyl nitrate | 25 | 110 | 40 | 140 |
Propylene | (See Table 12) | |||
Propylene dichloride (1,2-Dichloropropane) | 75 | 350 | 115 | 525 |
C Propylene glycol dinitrate | 0.2 | 2 | - | - |
Propylene glycol monomethyl either | 100 | 360 | 150 | 450 |
Propylene imine - Skin | 2 | 5 | 2 | 5 |
Propylene oxide | 100 | 240 | 150 | 360 |
Propyne, see Methyl acetylene | 1,000 | 1,650 | 1,250 | 2,050 |
Pyrethrum | - | 5 | - | 10 |
Pyridine | 5 | 15 | 10 | 30 |
Quinone | 0.1 | 0.4 | 0.3 | 1 |
RDXR - Skin | - | 1.5 | - | 3 |
Resorcinol | 10 | 45 | 20 | 90 |
Rhodium | ||||
Metal frame and dusts (as Rh) | - | 0.1 | - | 0.3 |
Soluble salts (as Rh) | - | 0.001 | - | 0.003 |
Ronnel | - | 10 | - | 10 |
Rosin core solder pyrolysis products (as formaldehyde) | - | 0.1 | - | 0.3 |
Rotenone (commercial) | - | 5 | - | 10 |
Rouge | (See Table 11) | |||
Rubber solvent (Naphtha) | 400 | 1,800 | 500 | 2,250 |
Selenium compounds (as Se) | - | 0.2 | - | 0.2 |
Selenium hexafluoride (as Se) | 0.05 | 0.4 | 0.05 | 0.4 |
Sevin R, see Carbaryl | - | 5 | - | 10 |
Silane, see Silicon tetrahydride | 0.5 | 7 | 1 | 1.5 |
Silicon | (See Table 11) | |||
Silicon carbide | (See Table 11) | |||
Silicon tetrahydride (Silane) | 0.5 | 0.7 | 1 | 1.5 |
Silver, metal and soluble compounds (as Ag) | - | 0.01 | - | 0.03 |
C Sodium azide | 0.1 | 0.3 | - | - |
Sodium fluoroacetate (1080) | - | 0.05 | - | 0.15 |
C Sodium hydroxide | - | 2 | - | - |
"60 Solvent" | 100 | 450 | 125 | 560 |
"70 Solvent" | 50 | 300 | 75 | 450 |
Starch | (See Table 11) | |||
Stibine | 0.1 | 0.5 | 0.3 | 1.5 |
Stoddard solvent | 100 | 575 | 150 | 720 |
Strychnine | - | 0.15 | - | 0.45 |
C Succinaldehyde (Glutaraldehyde) | - | 0.25 | - | - |
Styrene, monomer (Phenylethylene) | 100 | 420 | 125 | 525 |
C Subtilisins (Proteolytic enzymes as 100% pure crystalline enzyme) | - | 0.00006 | - | - |
Sucrose | (See Table 11) | |||
Sulphur dioxide | 5 | 13 | 5 | 13 |
Sulphur hexafluoride | 1,000 | 6,000 | 1,250 | 7,500 |
Sulphuric acid | - | 1 | - | 1 |
Sulphur monochloride | 1 | 6 | 3 | 18 |
Sulphur pentafluoride | 0.025 | 0.25 | 0.075 | 0.75 |
Sulphur tetrafluoride | 0.1 | 0.4 | 0.3 | 1 |
Sulphuryl fluoride | 5 | 20 | 10 | 40 |
Systox, see Demeton R - Skin | 0.01 | 0.1 | 0.03 | 0.3 |
2,4,5-T | - | 10 | - | 20 |
Tantalum | - | 5 | - | 10 |
TEDP - Skin | - | 0.2 | - | 0.6 |
Teflon R decomposition products (as Fluorine) | - | 2.5 | - | 5.0 |
Tellurium and compounds (as Te) | - | 0.1 | - | 0.1 |
Tellurium hexafluoride (as Te) | 0.02 | 0.3 | 0.02 | 0.2 |
TEPP - Skin | 0.004 | 0.05 | 0.012 | 0.15 |
C Terphenyls | 1 | 9 | - | - |
1,1,1,2-Tetrachloro-2,2-difluorethane | 500 | 4,170 | 625 | 5,210 |
1,1,2,2-Tetrachloro-/1,2-/ difluoroethane | 500 | 4,170 | 625 | 5,210 |
1,1,2,2, Tetrachloroethane - Skin | 5 | 35 | 10 | 70 |
Tetrachloroethylene, see Perchloroethylene - Skin | 100 | 670 | 150 | 1,000 |
Tetrachloromethane, see Carbon Tetrachloride - Skin | 10 | 65 | 20 | 130 |
Phthalic anhydride | 1 | 6 | 4 | 24 |
Picloram (TordonR) | - | 10 | - | 20 |
Picric acid - Skin | - | 0.1 | - | 0.3 |
PivalR (2-Pivalyl-1,3 indandione) | - | 0.1 | - | 0.3 |
Plaster of Paris | (See Table 11) | |||
Platinum (soluble salts) (as Pt) | - | 0.002 | - | 0.002 |
Polychlorobiphenyls, see Chrolordiphenyls - Skin | - | - | - | - |
Polytetrafluoroethylene decomposition products (as Fluorine) | 2 | 2.5 | - | 5 |
Portland cement | (see Table 11) | |||
Tetrachloronapthalene | - | 2 | - | 4 |
Tetraethyl lead (as Pb) - Skin | - | 0.1 | - | 0.3 |
Tetrahydrofuran | 200 | 590 | 250 | 700 |
Tetramethyl lead (as Pb) - Skin | - | 0.15 | - | 0.45 |
Tetramethyl succinonitrile - Skin | 0.5 | 3 | 1.5 | 9 |
Tetranitromethane | 1 | 8 | 1 | 8 |
Tetryl (2,4,6,-trinitrophenylmethylnitramine) - Skin | - | 1.5 | 0 | 3.0 |
Thallium, soluble compounds (asT1) - Skin | - | 0.1 | - | 0.1 |
4,4'-Thiobis(6-tert-butyl-m cresol) | - | 10 | - | 20 |
Thioglycolic acid | 1 | 5 | 2 | 10 |
Thiram R | - | 5 | - | 10 |
Tin, inorganic compounds, except SnH4 and SnO3 (as Sn) | - | 2 | - | 4 |
Tin, organic compounds (as Sn) - Skin | - | 0.1 | - | 0.2 |
Tin oxide (as Sn) | (See Table 11) | |||
Titanium dioxide (as Ti) | (See Table 11) | |||
Toluene (toluol) - Skin | 100 | 375 | 150 | 560 |
C Toluene-2,4-diisocyanate (TDI) | 0.02 | 0.14 | - | - |
o-Toluidine | 5 | 22 | 10 | 44 |
Toxaphene, see Chrlorinated camphene - Skin | - | 0.5 | - | 1.5 |
Tributyl phosphate | - | 5 | - | 5 |
C 1,2,4-Trichlorobenzene | 5 | 40 | - | - |
1,1,1,-Trichloroethane, see Methyl chloroform | 350 | 1,900 | 440 | 2,400 |
1,1,2-Trichloroethane - Skin | 10 | 45 | 20 | 90 |
Trichloroethylene | 100 | 535 | 150 | 800 |
K Trichloromethane, see Chloroform | (See Table 14) | |||
Trichloronaphthalene | - | 5 | - | 10 |
1,2,3-Trichloropropane | 50 | 300 | 75 | 450 |
1,1,2-Trichloro 1,2,2-trifluoroethane | 1,000 | 7,600 | 1,250 | 9,500 |
Triethylamine | 25 | 100 | 40 | 150 |
Tricyclohexyltin hydroxide (PlictranR) | - | 5 | - | 10 |
Trifluoromonobromo-methane | 1,000 | 6,100 | 1,200 | 7,625 |
Trimethyl benzene | 25 | 120 | 35 | 180 |
Trimethyl phosphite | 0.5 | 2.6 | 1.5 | 7.8 |
2,4,6-Trinitrophenol, see Picric acid - Skin | - | 0.1 | - | 0.3 |
2,4,6-Trinitrophenyl-methylnitramine, see Tetryl - Skin | - | 1.5 | - | 3.0 |
C 2,4,6-Trinitrotoluene (TNT) | - | 0.5 | - | - |
Triothocresyl phosphate | - | 0.1 | - | 0.3 |
Triphenyl phosphate | - | 3 | - | 6 |
Tungsten and compounds (as W) - | ||||
Soluble | - | 1 | - | 3 |
Insoluble | - | 5 | - | 10 |
Turpentine | 100 | 560 | 150 | 840 |
Uranium (natural) soluble and insoluble compounds (as U) | - | 0.2 | - | 0.6 |
Vanadium (V2O5) (as V) - Dust | - | 0.5 | - | 1.5 |
C Fume | - | 0.05 | - | - |
Valeraldehyde | 50 | 175 | 75 | 262 |
Vegetable oil mist | (See Table 11) | |||
Vinyl acetate | 10 | 30 | 20 | 60 |
Vinyl benzene, see Styrene | 100 | 420 | 125 | 525 |
Vinyl bromide | 250 | 1,100 | 250 | 1,100 |
K Vinyl chloride | (See Table 14) | |||
Vinyl cyanide, see Acrylonitrile - Skin | 20 | 45 | 30 | 70 |
Wood dust (nonallergenic) | - | 5 | - | 10 |
Wood dust (allergenic) | (See Table 10) | |||
Vinyl toluene | 100 | 480 | 150 | 720 |
Warfarin | - | 0.1 | - | 0.3 |
Welding fumes | - | 5.0 | - | 5 |
Xylene (o-, m-, p-isomers) - Skin | 100 | 435 | 150 | 650 |
C m-Xylene a,a'-diamine | - | 0.1 | - | - |
Xylidene - Skin | 5 | 25 | 10 | 50 |
Yttrium | - | 1 | - | 3 |
Zinc chloride fume | - | 1 | - | 2 |
K Zinc chromate (as Cr) | (See Table 14) | |||
Zinc oxide fume | - | 5 | - | 10 |
Zinc oxide dust | (See Table 11) | |||
Zinc stearate | (See Table 11) | |||
Zirconium compounds (as Zr) | - | 5 | - | 10 |
TABLE 9 Air Contaminants | ||||||||
---|---|---|---|---|---|---|---|---|
Permissible Concentrations | ||||||||
8-hour Limit | 15-minute Limit | |||||||
Substance | ppm | mg/m3 | ppm | mg/m3 | ||||
C Butyl mercaptan | 3 | 9.3 | - | - | ||||
C Ethyl mercaptan | 3 | 7.6 | - | - | ||||
C Methyl mercaptan | 3 | 5.9 | - | - | ||||
Wood dust, allergenic (e.g., cedar, mahogany, teak) | - | 2.5 | - | 5 | ||||
Gasoline2 | 500 | 625 | - | |||||
Permissible Concentrations | ||||||||
Substance | Impinger (mppef) | Respirable Mass (mg/m3) | ||||||
Foundry dust: Silica sand | 5 | 1.2d | ||||||
Olivine sand | 5 | 3.3d |
TABLE 10 Mineral Dusts (Each substance must comply with at least one of the relevant requirements as determined by the air sampling technique used). | ||||||
Permissible Concentrations | (Fibres per mL)a | |||||
---|---|---|---|---|---|---|
Substance | 8-hour limit | 15-minute limit | ||||
Asbestos: | ||||||
Amosite | 0.2 | 2 | ||||
Chrysotile | 0.5 | 5 | ||||
Crocidolite | 0.1 | - | ||||
Tremolite | 0.5 | 5 | ||||
Talc (fibrous) | 0.5 | 5 | ||||
Permissible Concentration (8-hr. Limit) | ||||||
Column I | Column II | Column III | ||||
KONIMETERb (particles/mL) | IMPINGERc (mmppcf) | RESPIRABLE MASSd (mg/m3) | ||||
Silica: | ||||||
Quartz, crystalline | 300 | (e) | (g) | |||
Cristobalite | 150 | (f) | (1/2 quartz value) | |||
Tridymite | 150 | (f) | (1/2 quartz value) | |||
Silica, fused or flour | 300 | (e) | (quartz value) | |||
Tripoli | 300 | (e) | (quartz value) | |||
Silica, amorphous | 300 | 20 | 2 | |||
Diatomaceous earth | 300 | 20 | 1.5 | |||
Silicates: | ||||||
Mica | - | 20 | - | |||
Mineral wool fibre | - | - | 10 | |||
Perlite | - | 30 | - | |||
Portland Cement | - | 30 | - | |||
Soapstone | - | 20 | - | |||
Talc (nonasbestos form) | - | 20 | - | |||
Graphite | - | 20 | - | |||
Coal | - | - | 2 |
TABLE 11 Nuisance Dust, Mists and Fumes (Each substance contained in this table must comply with at least one of the relevant requirements). | |||
PERMISSIBLE CONCENTRATIONS | |||
---|---|---|---|
8 hour Limit | 15-minute Limit | ||
Impinger* (mppcf) | Gravimetrict (mg/m3) | Gravimetrict (mg/m3) | |
Alundum (A1203) | 30 | 10 | 20 |
Calcium carbonate | 30 | 10 | 20 |
Calcium silicate | 30 | 10 | - |
Cellulose (paper fibre) | 30 | 10 | 20 |
Corundum (Al2O3) | 30 | 10 | - |
Emery | 30 | 10 | 20 |
Glass, fibrous or dust | 30b | 10 | - |
Glycerine mist | 30 | 10 | - |
Graphite (synthetic) | 30 | 10 | - |
Cypsum | 30 | 10 | 20 |
Kaolin | 30 | 10 | 20 |
Limestone | 30 | 10 | 20 |
Marble | 30 | 10 | 20 |
Magnesite | 30 | 10 | 20 |
Mineral wood fibre | 30 | 10 | - |
Pentaerythritol | 30 | 10 | 20 |
Plaster of Paris | 30 | 10 | 20 |
Portland Cement | 30 | 10 | 20 |
Rouge | 30 | 10 | 20 |
Silicon | 30 | 10 | 20 |
Silicon carbide | 30 | 10 | 20 |
Starch | 30 | 10 | 20 |
Sucrose | 30 | 10 | 20 |
Tin oxide | 30 | 10 | 20 |
Titanium dioxide | 30 | 10 | 20 |
Zinc oxide dust | 30 | 10 | - |
Vegetable oil mists (except castor, cashew nut, or similar irritating oils) | - | 10 | - |
Zinc stearate | 30 | 10 | 20 |
TABLE 12 |
---|
Asphyxiant substances which must be controlled to ensure that no atmosphere is oxygen deficient (less than 18% oxygen) at any time |
Acetylene |
Argon |
Ethane |
Ethylene |
Helium |
Hydrogen |
Methane |
Neon |
Nitrogen |
Propane |
Propylene |
TABLE 13 Maximum acceptable body burdens | ||
---|---|---|
Substance | Maximum Concentration | |
Blood ug/100ml | Urine ug/1* | |
Arcenic | 50 | 1500 |
Cadmium | 10 | 35 |
Lead inorganic | 80 | 200 |
alkyl compounds | - | 160 |
Manganese | - | 75 |
Mercury inorganic | - | 500 |
alkyl compounds | - | 40 |
Vanadium | - | 150 |
Selenium | - | 300 |
Fluoride | - | 5000** |
Carbon Monoxide | 10% as carboxyhaemoglobin |
TABLE 14 Carcinogens with a Permitted Exposure | ||
---|---|---|
Substance | Permissible Concentrations 8-hour Limit | |
ppm | mg/m3 | |
Antimony trioxide production (as SB) | - | 0.5 |
Arsenic trioxide production - | ||
As2O3 (as As) | - | 0.05 |
SO2C | 5 | - |
Acrylonitrile | 20 | 45 |
Benzene C | 10 | 32 |
Beryllium | - | 0.002 |
Cadmium oxide production (as Cd) | - | 0.05 |
Chloroethylene (vinyl chloride) | 1 | 2.5 |
Chloroform (trichloromethane) | 10 | 50 |
bis-Chloromethyl ether | 0.001 | - |
Chromite ore processing (chromate), as Cr | 0.1 | 0.1 |
1,2-Dibromoethane | 20 | 145 |
Dimethyl sulphate-Skin | 1 | 5 |
Epichlorhydrin | 5 | 20 |
Hydrazine | 0.1 | 0.1 |
Lead chromate (as Cr) | - | 0.05 |
4,4’-Methylene bis (2-chloraniline)-Skin | 0.02 | 0.02 |
Nickel sulfide roasting (fume and dust) as Ni | - | 1 |
2-Nitropropane | 25 | - |
Particulate Polycylic Aromatic Hydrocarbons as benzene solubles) | - | 0.2 |
(Coal Tar Pitch Volatiles) Trichloromethane (chloroform) | 10 | 50 |
Vinyl chloride (chloroethylene) | 1 | 2.5 |
Zinc chromate (as Cr) | - | 0.05 |
Carcinogens
A carcinogen is an agent which when absorbed into or onto the body may initiate uncontrolled cell growth. These substances listed in this Appendix are used in industry and have proven carcinogenic in man or have induced cancer in animals under appropriate experimental conditions.
TABLE 15 Carcinogens With No Permitted Exposure No exposure or contact means isolating the process or operation by the best practical engineering methods. The worker should be equipped with personal protective equipment to ensure virtually no contact with the carcinogen. | |
4-Aminodiphenyl - Skin | 3,3-Dichlorobenzidine - Skin |
Benzidine production - Skin | 4-Nitrodiphenyl |
TABLE 16 Carcinogens With No Established Permitted Concentration. Exposure to be carefully controlled and minimized. | |
Benzo (oo) pyrene | Dimethyl carbamyl chloride |
Hexamethyl phosphoramide - Skin | B-Naphthylamine |
B-Propiolactone | N-Nitrosodimethylamine (dimethylnitrosoamine) - Skin |