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Schedule II – Factories Act, 1948

Factories Act, 1948

 

 

Schedule. II

 

 

1Schedule. II

 

[See section 41F]

 

PERMISSIBLE LEVELS OF CERTAIN CHEMICAL SUBSTANCES IN WORK ENVIRONMENT

 

Sl. No. Substance Permissible limits of exposure
r e

Time-Weighted average concentration (TWA)

(TWA) Short-term exposure limit (15 min.) (STEL)
a a PPm mg/m3 PPm mg/m3
1 2 3 4 5 6
1 Acetaldehyde 100 180 150 270
2 Acetic Acid 10 25 15 37
3 Acetone 750 1780 1000 2375
4 Acrolein 01 0.25 0.3 0.8
5 Acrylonitrile-skin (S.C) 2 4.5
6 Aldrin-skin 0.25
7 Allyl Chloride 1 3 2 6
8 Ammonia 0.25 18 35 27
9 Aniline-skin 2 10
10 Anisidine (O.P.isomers)-skin 0.1 0.5
11 Arsenic & Soluble compounds (as As) 0.2
212 Benzene (H.C) 05 1.5 25 7.5
13 Beryllium & Compounds (as Be) (S.C) 0.002
14 Boron trifluoride C 1 3
15 Bromine 0.1 0.7 0.3 2
16 Butane 800 1900
17 2-Butanone (Methyle ethyle Ketone MEK) 200 590 300 885
18 N-Butyl acetate 150 710 200 950
19 N-Butyl alcohol-skin-C 50 150
20 Sce/tert, Butyl acetate 200 950
21 Butyl Mercaptan 0.5 1.5
22 Cadmium-dust and salts (as Cd) 0.05 0.21
23 Calcium oxide 2
24 Carbaryl (Sevin) 5 0.10
25 Carbofuran (Furadan) 0.1
26 Carbon disulphide-skin 10 30
27 Carbon monoxide 50 55 400 440
28 Carbon tetrachloride-skin (S.C.) m5 30
29 Chlordane-skin 0.5 2
30 Chlorine 1 3 3 9
31 Chlorobenzene (monochlorobenzene) 75 350
32 Chloroform (S.C.) 10 50
33 bis-(Chloromethyl) ether (H.C.) 0.001 0.005
34 Chromic acid and chromates (as Cr) (Water soluble) 0.05
35 Chromous Salts (as Cr) 0.5
36 Copper fume 0.2
37 Cotton dust, raw 0.2 0.06
38 Cresoal, all isomers-skin 5 22
39 Cyanides (as Cn)-skin 5
40 Cyanogen 10 20
41 DDT (Dichlorodiphenyl Trichloroethane) 1 3
42 Demeton-skin 0.01 0.1
43 Diazinon-skin 0.1 0.3
44 Dibutyl Phythalate 5 10
45 Dichlorous (DDVP)-skin .1 1 .3 3
46 Dieldrin-skin 0.25 .75
47 Dinitrobenzene (all isomers)-skin 0.15 1 .5 .3
48 Dinitrotoluene-skin 1.5 .5
49 Diphenyl (Biphenyl) 0.2 1.5
50 Endosulfan (Thiodan)- skin 0.1 .4
51 Endrin-skin 0.1 .3
52 Ethyl acetate 400 1400
53 Ethyl alcohol 1000 1900
54 Ethylamin 10 18
55 Fluorides (as F) 2.5
56 Fluorine 1 2 2 4
57 Formaldehyde (S.C.) 1.0 1.5 2 3
58 Formic Acid 5 9
59 Gasoline 300 900 500 1500
60 Hydrazine-skin (S.C.) 0.1 0.1
61 Hydrogen Chloride-C 5 7 a a
62 Hydrogen Cyanide skin-C 10 10
63 Hydrogen Fluoride (as F)-C 3 2.5
64 Hydrogen Peroxide 1 1.5
65 Hydrogen Sulphide 10 14 15 21
66 Iodine-C 0.1 1
67 Iron Oxide Fume (F0203) (as Fe) 5
68 Isoamyl acetate 100 525
69 Isoamyl alcohol 100 360 125 450
70 Isobutyl alcohol 50 150
71 Lead, inorg, dusts, dusts and fumes (as Pb) 0.15
72 Lindane-skin 0.5
73 Malathion-skin 10
74 Manganese dust and compounds (as (Mn)-C 5
75 Manganese Fume (as Mn) 1 3
76 Mercury (as Hg)-skin a a a a
a (i) Alkyle compounds 0.01 0.03
a (ii) All forms except alkyle vapour 0.05
a (iii) Aryle and inorganic compounds 0.1
77 Methyl alcohol (Methanol)-skin 200 260 250 310
78 Methyl cellosolve (2-methoxyethanol)-skin 5 16
79 Methyl isobutyl Ketone 50 205 75 300
80 Methyl Isocyanate-skin 0.02 0.05
81 Naphthalene 10 50 15 75
82 Nickel carbonyl (as Ni) 0.05 0.35
83 Nitric acid 2 5 4 10
84 Nitric Oxide 25 30
85 Nitrobenzene-skin 1 5
86 Nitrogen dioxide 3 6 5 10
87 Oil mist mineral 5 10
88 Ozone 0.1 0.2 0.3 0.6
89 Parathion-skin 0.1
90 Phenol-skin 5 19 a a
91 Phorate (Thimet)-skin 0.05 0.2
92 Phosgene (Carbonyl Chloride) 0.1 0.4
93 Phosphine 0.3 0.4 1 1
94 Phosphoric acid 1 3
95 Phosphorus (yellow) 0.1
96 Phosphorus penta- chloride 0.1 1
97 Phosphorus trichloride

0.2

1.5 0.5 3
98 Picric acid-skin 0.1

0.3

99 Pyridine 5 15
100 Silans (silicon tetrahydride) 5 7
101 Sodium hydroxide-C 2
102 Styrene, monomer (phanylethlene) 50 215 100 425
103 Sulphur dioxide 2 5 5 10
104 Sulphur hexafluoride 1000 6000
105 Sulphuric acid 1
106 Tetraethyl lead (as Pb) – Skin 0.1
107 Toluene (Toluol) 100 375 150 560
108 O-Toluidine-skin (S.C.) 2 9
109 Tributylphosohate 0.2 2.5
110 Trichloroethylene 50 270 200 1080
111 Uranium natural (as U) 0.2 0.6
112 Vinyl Chloride (H.C.) 5 10
113 Welding fumes 5
114 Xylene (O-m-P-isomers) 100 435 150 655
115 Zinc oxide d a a a
f (i) Fume 5.0 10
d (ii) Dust (Total dust) 10.00
116 Zirconium compounds (as Zr) 5 10

 

1. Subs. by S.O. 170 (E), dated 2nd March, 1989.

2. Subs. by S.O. 342 (E), dated 19th April, 2001 (w.e.f. 19-4-2001).

* Lint-free dust as measured by the vertical clutricator cotton-dust sampler.

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Factories Act, 1948

 

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