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ontario regulation 274/14
made under the
Occupational Health and Safety Act
Made: December 10, 2014
Filed: December 15, 2014
Published on e-Laws: December 16, 2014
Printed in The Ontario Gazette: January 3, 2015
Amending Reg. 833 of R.R.O. 1990
(CONTROL OF EXPOSURE TO BIOLOGICAL OR CHEMICAL AGENTS)
1. The definition of “ACGIH Table” in section 1 of Regulation 833 of the Revised Regulations of Ontario, 1990 is revoked and the following substituted:
“ACGIH Table” means the table entitled “Adopted Values” shown at pages 10 to 61 of the publication entitled 2013 Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices published by ACGIH and identified by International Standard Book Number 978-1-607260-59-2; (“tableau de l’ACGIH”)
2. Table 1 of the Regulation is revoked and the following substituted:
Table 1
Ontario Table of Occupational Exposure limits
Listing
French Listing Equivalent
Agent [CAS No.]
Time-Weighted Average Limit (TWA)
Short-Term Exposure Limit (STEL) or Ceiling Limit (C)
Notations
1.
4.
*Acrylonitrile [107-13-1]
2 ppm
C 10 ppm
Skin
2a.
50a.
Aliphatic hydrocarbon gases
– Alkane [C1-C4], except Butane, All isomers
1,000 ppm
2b.
50b.
Aliphatic hydrocarbon gases
– Butane, All isomers [106-97-8]; [75-28-5]
800 ppm
3.
7.
*Arsenic, elemental arsenic and inorganic compounds [7440-38-2], and organic compounds (only where both inorganic and organic compounds are present), as As.
0.01 mg/m3
0.05 mg/m3
4a.
5a.
*Asbestos
– All forms [1332-21-4]
0.1 f/cc (F)
4b.
5b.
*Asbestos
– Actinolite [77536-66-4]
0.1 f/cc (F)
4c.
5c.
*Asbestos
– Amosite [12172-73-5]
0.1 f/cc (F)
4d.
5d.
*Asbestos
– Anthophyllite [77536-67-5]
0.1 f/cc (F)
4e.
5e.
*Asbestos
– Chrysotile [132207-32-0]
0.1 f/cc (F)
4f.
5f.
*Asbestos
– Crocidolite [12001-28-4]
0.1 f/cc (F)
4g.
5g.
*Asbestos
– Tremolite [77536-68-6]
0.1 f/cc (F)
5.
10.
Benzaldehyde [100-52-7]
4 ppm, or 17 mg/m3
6.
11.
*Benzene [71-43-2]
0.5 ppm
2.5 ppm
Skin
7.
12.
Beryllium and compounds, as Be [7440-41-7]
0.002 mg/m3
0.01 mg/m3
8.
19.
Calcium chloride [10043-52-4]
5 mg/m3
9.
15.
Carbon tetrachloride [56-23-5]
2 ppm
3 ppm
Skin
10.
16.
Charcoal, except activated [16291-96-6]
10 mg/m3
11.
66.
Chlorinated diphenyl oxides [55720-99-5]
0.5 mg/m3
2 mg/m3
12.
17.
o-Chlorobenzaldehyde [89-98-5]
4 ppm, or 23 mg/m3
13a.
14a.
Chlorodiphenyl (42 per cent chlorine) [53469-21-9]
See listing for Polychlorinated Biphenyls (PCBs)
13b.
14b.
Chlorodiphenyl (54 per cent chlorine) [11097-69-1]
See listing for Polychlorinated Biphenyls (PCBs)
14.
22.
N-Cocomorpholine [1541-81-7]
5 ppm, or 52 mg/m3
Skin
15.
46.
*Coke Oven Emissions1
0.15 mg/m3
16.
87.
Coumarone-Indene Resins (total dust) [63393-89-5]
5 mg/m3
17.
24.
Cymene (sum of o-, m- and p-isomers) [25155-15-1]
50 ppm, or 274 mg/m3
Skin
18.
28.
1,1-Dichloroethene [75-35-4]
1 ppm, or 4 mg/m3
20 ppm, or 80 mg/m3
19.
29.
1,3-Dichloro-2-Propanol [96-23-1]
1 ppm, or 5 mg/m3
Skin
20.
40.
Diethylene glycol monoethyl ether [111- 90-0]
30 ppm, or 165 mg/m3
21.
74.
Di(2-ethylhexyl)phthalate (DEHP) [117-81-7]
3 mg/m3
5 mg/m3
22.
73.
Diisodecyl phthalate [26761-40-0]
5 mg/m3
23.
30.
3-(Dimethylamino) propylamine [109-55-7]
0.5 ppm, or 2 mg/m3
Skin
24.
31.
N, N-Dimethyl-cyclohexylamine [98-94-2]
5 ppm, or 26 mg/m3
25.
32.
N, N-Dimethyl-ethanolamine [108-01-0]
3 ppm, or 11 mg/m3
6 ppm, or 22 mg/m3
26.
103.
Dimethyl terephthalate [120-61-6]
5 mg/m3
27.
18.
Dimethyl 2,3,5,6-tetracholoroterephthalate [1861-32-1]
5 mg/m3
28.
59.
Dipropylene glycol monomethyl ether acetate [88917-22-0]
100 ppm, or 776 mg/m3
150 ppm, or 1,164 mg/m3
29.
34.
Diquat [2764-72-9; 85-00-7; 6385-62-2]
0.5 mg/m3, or 0.1 mg/m3(R)
Skin
30.
35.
Enflurane [13838-16-9]
2 ppm, or 16 mg/m3
31.
42.
Ethyl-3-ethoxy propionate[763-69-9]
50 ppm, or 300 mg/m3
32.
26.
Ethylene dibromide [106-93-4]
(L)
Skin
33.
39.
Ethylene glycol dimethyl ether [110-71-4]
5 ppm, or 18 mg/m3
Skin
34.
41.
Ethylene glycol mono-n-propyl ether [2807-30-9]
25 ppm, or 110 mg/m3
Skin
35.
63.
Ethylene glycol mononitrate[16051-48-2]
0.05 ppm, or 0.22 mg/m3
Skin
36.
67.
*Ethylene oxide [75-21-8]
1 ppm, or 1.8 mg/m3
10 ppm, or 18 mg/m3
37.
57.
Ethyl methacrylate [97-63-2]
50 ppm
100 ppm
38.
79.
Flour dust
See listing for Wheat Flour Dust (total dust)
39.
44.
Forane [26675-46-7]
2 ppm, or 15 mg/m3
40.
45.
Formaldehyde [50-00-0]
STEL 1 ppm, or C 1.5 ppm
41.
47.
Halothane [151-67-7]
2 ppm, or 16 mg/m3
42.
1.
Heptyl acetate [112-06-1]
50 ppm, or 320 mg/m3
43.
48.
Hexamethylenetetramine (HMT) [100-97-0]
0.35 ppm, or 2 mg/m3
44.
49.
Hexamethyl phosphoramide [680-31-9]
(L)
Skin
45.
2.
Hexyl acetate (isomeric mixture) [88230-35-7]
50 ppm, or 294 mg/m3
46.
97.
Hydrogen sulfide [7783-06-4]
10 ppm
15 ppm
47.
104.
Hydrogenated terphenyls2
[61788-32-7]
0.5 ppm
48a.
52a.
*Isocyanates, organic compounds
– Toluene diisocyanate (TDI) [584-84-9] [91-08-7]
0.005 ppm
C 0.02 ppm
48b.
52b.
*Isocyanates, organic compounds
– Methylene bisphenyl isocyanate (MDI) [101-68-8]
0.005 ppm
C 0.02 ppm
48c.
52c.
*Isocyanates, organic compounds
– Hexamethylene diisocyanate (HDI) [822-06-0]
0.005 ppm
C 0.02 ppm
48d.
52d.
*Isocyanates, organic compounds
– Isophorone diisocyanate (IPDI) [4098-71-9]
0.005 ppm
C 0.02 ppm
48e.
52e.
*Isocyanates, organic compounds
– Methylene bis (4-cyclohexylisocyanate) [5124-30-1]
0.005 ppm
C 0.02 ppm
48f.
52f.
*Isocyanates, organic compounds
– Methyl Isocyanate [624-83-9]
0.02 ppm
Skin
49.
53.
Isopropylaminoethanols [109-56-8] [121-93-7]
400 ppm, or 1,900 mg/m3
50.
33.
Isosorbide dinitrate [87-33-2]
0.2 mg/m3
Skin
51a.
77a.
*Lead [7439-92-1], elemental lead, inorganic and organic compounds of lead, as Pb
– except tetraethyl lead [78-00-2]
0.05 mg/m3
Skin (organic compounds)
51b.
77b.
*Lead [7439-92-1]
– Tetraethyl lead, as Pb [78-00-2]
0.10 mg/m3
0.30 mg/m3
52a.
21a.
*Lead chromate [7758-97-6]
– as Pb (see listing for lead) [7439-92-1]
0.05 mg/m3
52b.
21b.
*Lead chromate [7758-97-6]
– as Cr
0.012 mg/m3
53.
54.
Lincomycin [154-21-2]
0.1 mg/m3
54a.
51a.
Lithium hydroxide
– Anhydrous [1310-65-2]
1 mg/m3
54b.
51b.
Lithium hydroxide
– Monohydrate [1310-66-3]
1 mg/m3
55.
55.
Manganese [7439-96-5]
0.2 mg/m3
56a.
56a.
*Mercury [7439-97-6], elemental mercury, inorganic and organic compounds of mercury, as Hg
– All forms of except alkyl, as Hg
0.025 mg/m3
Skin
56b.
56b.
*Mercury [7439-97-6]
– Alkyl compounds of, as Hg
0.01 mg/m3
0.03 mg/m3
Skin
57.
58.
Methoxyflurane [76-38-0]
2 ppm, or 13 mg/m3
58.
60.
Methyl n-amyl ketone [110-43-0]
25 ppm, or 115 mg/m3
59.
38.
Methyl tert-butyl ether (MTBE) [1634-04-4]
40 ppm
60.
61.
Methyl n-butyl ketone [591-78-6]
1 ppm, or 4 mg/m3
Skin
61.
27.
4,4'-Methylene bis(2-chloroaniline) (MBOCA; MOCA®)[101-14-4]
0.0005 ppm, or 0.005 mg/m3
Skin
62.
25.
4,4'-Methylene dianiline [101-77-9]
0.04 mg/m3
Skin
63.
62.
N-Methyl-2-pyrrolidone [872-50-4]
400 mg/m3
64.
36.
Mineral Spirits
525 mg/m3
65.
98.
Nepheline syenite (total dust) [37244-96-5]
10 mg/m3
66a.
64a.
Nickel
– Elemental/metal [7440-02-0]
1 mg/m3(I)
66b.
64b.
Nickel
– Insoluble compounds, as Ni [7440-02-0]
0.2 mg/m3(I)
66c.
64c.
Nickel
– Soluble compounds, as Ni [7440-02-0]
0.1 mg/m3(I)
66d.
64d.
Nickel
– Nickel subsulfide, as Ni [12035-72-2]
0.1 mg/m3(I)
67.
8.
Nitrogen dioxide [10102-44-0]
3 ppm
5 ppm
68.
65.
N-Nitrosamines, including n-Nitrosodimethylamine [62-75-9]
(L)
Skin
69.
9.
Nitrous oxide [10024-97-2]
25 ppm, or 45 mg/m3
70.
68.
Ozone [10028-15-6]
0.1 ppm, or 0.2 mg/m3
0.3 ppm, or 0.6 mg/m3
71.
69.
Paraquat [4685-14-7]
0.1 mg/m3
72.
70.
Particles (Insoluble or Poorly Soluble) Not Otherwise Specified (PNOS)
10 mg/m3(I), or 3 mg/m3(R)
73.
71.
Penicillin (total dust) [1406-05-9]
0.1 mg/m3
74.
101.
Pentaerythritol tetrabenzoate [4196-86-5]
2 mg/m3
75.
23.
Petroleum coke (total dust) [64741-79-3]
3.5 mg/m3(a)
76.
72.
2-Phenoxyethanol [122-99-6]
25 ppm, or 141 mg/m3
Skin
77a.
76a.
Platinum[7440-06-4]
– Metal
1 mg/m3
77b.
76b.
Platinum[7440-06-4]
– Water-soluble compounds of, including chloroplatinates (as Pt)
0.002 mg/m3
78.
13.
Polychlorinated biphenyls (PCBs)2
0.05 mg/m3
79.
84.
Poultry dust (total dust)
5 mg/m3
80.
85.
1,2-Propylene glycol [57-55-6]
50 ppm (V), or 155 mg/m3(V), or 10 mg/m3(H)(b)
81.
3.
Propylene glycol monomethyl ether acetate [108-65-6]
50 ppm, or 270 mg/m3
82.
88.
Selenium hexafluoride, as Se [7783-79-1]
0.025 ppm, or 0.1 mg/m3
83.
82.
Shellac dust (total dust) [9000-59-3]
10 mg/m3
84a.
91a.
*Silica, Crystalline
– Quartz/Tripoli [14808-60-7; 1317-95-9]
0.10 mg/m3(R)
84b.
91b.
*Silica, Crystalline
– Cristobalite [14464-46-1]
0.05 mg/m3(R)
85.
90.
Silica fume [69012-64-2]
2 mg/m3(R)
86.
89.
Silica fused [60676-86-0]
0.1 mg/m3(R)
87a.
92a.
Silicon carbide [409-21-2]
– Non-fibrous
10 mg/m3(I)(E), or 3 mg/m3(R)(E)
87b.
92b.
Silicon carbide [409-21-2]
– Fibrous (including whiskers)
0.1 f/cc (R)(F)
88.
83.
Sisal dust (total dust)
2 mg/m3
89.
81.
Soap dust [68918-36-5]
5 mg/m3
90.
95.
Spectinomycin [1695-77-8]
2 mg/m3
91.
93.
Stoddard Solvent –140ºF Flash Aliphatic Solvent, Type of Stoddard Solvent
525 mg/m3
92.
96.
Styrene – monomer [100-42-5]
35 ppm
100 ppm
93.
94.
Sulfur dioxide [7446-09-5]
2 ppm, or 5.2 mg/m3
5 ppm, or 10.4 mg/m3
94a.
43a.
Synthetic Vitreous Fibres (Man Made Mineral Fibres)
– Continuous filament glass fibres
5 mg/m3(I), or 1 f/cc (F)
94b.
43b.
Synthetic Vitreous Fibres (Man Made Mineral Fibres)
– Glass wool fibres
1 f/cc (F)
94c.
43c.
Synthetic Vitreous Fibres (Man Made Mineral Fibres)
– Refractory ceramic fibres
0.5 f/cc (F)
94d.
43d.
Synthetic Vitreous Fibres (Man Made Mineral Fibres)
– Rock wool fibres
1 f/cc (F)
94e.
43e.
Synthetic Vitreous Fibres (Man Made Mineral Fibres)
– Slag wool fibres
1 f/cc (F)
94f.
43f.
Synthetic Vitreous Fibres (Man Made Mineral Fibres)
– Special purpose glass fibres
1 f/cc (F)
94g.
43g.
Synthetic Vitreous Fibres (Man Made Mineral Fibres)
– Synthetic Vitreous Fibres, not otherwise classified (excluding fibrous glass dust and mineral wool fibre)
1 f/cc (F)(c)
95.
99.
Talc [14807-96-6],containing no asbestos
2 mg/m3(R)(E), or 2 f/cc (K)
96.
100.
Tellurium hexafluoride, as Te [7783-80-4]
0.01 ppm, or 0.1 mg/m3
97.
6.
Tetrachlorophathalic anhydride [117-08-8]
0.1 mg/m3
98.
102.
Tetrachlorophenol [25167-83-3]
0.5 mg/m3
Skin
99.
86.
Tetrasodium pyrophosphate [7722-88-5]
5 mg/m3
100a.
37a.
Tin, as Sn [7440-31-5]
– Metal
2 mg/m3
100b.
37b.
Tin, as Sn [7440-31-5]
– Oxide and inorganic compounds, as Sn, except tin hydride
2 mg/m3
100c.
37c.
Tin, as Sn [7440-31-5]
– Organic compounds, as Sn
0.1 mg/m3
Skin (organic compounds)
101.
105.
o-Tolidine [119-93-7]
(L)
Skin
102.
106.
Triethanolamine [102-71-6]
0.5 ppm, or 3.1 mg/m3
103.
107.
Triethylenediamine [280-57-9]
1 ppm, or 4.6 mg/m3
Skin
104.
108.
Triethylenetetramine [112-24-3]
0.5 ppm, or 3 mg/m3
Skin
105.
109.
Trimethoxyvinylsilane [2768-02-7]
10 ppm, or 60 mg/m3
106.
75.
Trixylylphosphate [25155-23-1]
0.1 mg/m3
107.
20.
*Vinyl chloride [75-01-04]
1 ppm
108.
80.
Wheat flour dust (total dust)
3 mg/m3
109a.
78a.
Wood dust
– Certain hardwoods as beech and oak
1 mg/m3
109b.
78b.
Wood dust
– Softwood
5 mg/m3
10 mg/m3
Endnotes and Abbreviations:
* Denotes a chemical agent listed in Table 1 of Ontario Regulation 490/09 (Designated Substances) made under the Act. See clause 2 (2) (a) of this Regulation.
1 Means the benzene soluble fraction of total particulate matter of the substances emitted into the atmosphere from metallurgical coke ovens including condensed vapours and solid particulates.
2 As sum of components assayed by chromatographic procedure with reference to the bulk sample.
[CAS No.] - CAS Registry Number.
f/cc - Fibres per cubic centimetre of air.
mg/m3- Milligrams of the agent per cubic metre of air.
ppm - Parts of the agent per million parts of air by volume.
Skin - Danger of cutaneous absorption.
(E) The value is for particulate matter containing no asbestos and
(F) Respirable fibres: length > 5µm; aspect ratio ≥3:1, as determined by the membrane filter method at 400-450 times magnification (4-mm objective), using phase-contrast illumination.
(H) Aerosol only.
(I) Inhalable fraction: means that size fraction of the airborne particulate deposited anywhere in the respiratory tract and collected during air sampling with a particle size-selective device that, (a) meets the ACGIH particle size-selective sampling criteria for airborne particulate matter; and (b) has the cut point of 100 µm at 50 per cent collection efficiency.
(K) Should not exceed 2 mg/m3respirable particulate mass.
(L) Exposure by all routes should be carefully controlled to levels as low as possible.
(R) Respirable fraction: means that size fraction of the airborne particulate deposited in the gas-exchange region of the respiratory tract and collected during air sampling with a particle size-selective device that, (a) meets the ACGIH particle size-selective sampling criteria for airborne particulate matter; and (b) has the cut point of 4 µm at 50 per cent collection efficiency.
(V) Vapour and aerosol.
(a) Provided that the total dust contains less than 0.7 per cent vanadium.
(b) For assessing the visibility in a work environment where 1,2-propylene glycol aerosol is present.
(c) A secondary limit of 5 mg/m3 (total dust) is recommended to deal with dusty operations where fibre counts are usually difficult to determine. Where both types of measurements are made simultaneously, the more restrictive limit should be used to assess the exposures.
Commencement
3. This Regulation comes into force on the later of July 1, 2015 and the day it is filed.
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