Hazardous Chemicals Handbook (pdf) - CCC

Table 5.12 Cont’d
Threshold limit values (USA) Occupational exposure limits (UK) Air odour
Substance TWA STEL TWA (c)
STEL (c) threshold
(ppm) (a)
(mg/m 3 ) (b)
(ppm) (a)
(mg/m 3 ) (b)
(ppm) (mg/m 3 ) (ppm) (mg/m 3 ) (ppm; v/v)
Tetryl
Thallium, soluble compounds,
– 2 – – SK – 1.5 – 3
as Tl SK – 0.1 – – SK – 0.1 – –
4,4′-Thiobis(6-tert-butyl-m-cresol) – 10 – – – 10 – –
Thioglycolic acid SK 1 3.8 – – 1 3.8 – –
Thionyl chloride – – C1 C4.9 – – 1 5
Thiram
Tin
– 1 – – – 5 – 10
Metal – 2 – – – – – –
Oxide and inorganic compounds
except SnH4, as Sn
– 2 – – – 2 – 4
Organic compounds as Sn SK – 0.1 – 0.2 SK – 0.1
(except Cyhexin)
– 0.2
– 10 (total
–
inhalable dust)
4
(respirable dust)
– –
Toluene 50 191 150 565 SK 50 191 150 574 2.9
Toluene-2,4-diisocyanate (TDI) 0.005 0.036 0.02 0.14 see Isocyanates
p-Toluenesulphonyl chloride – – – – – – – 5 0.17
o-Toluidine SK 2 (e)
8.8 (e)
⎧
Titanium dioxide – 10
⎪
⎨
⎪
⎩
– – 0.2 0.9 – – 0.25
m-Toluidine SK 2 8.8 – – – – – –
(i) – –
p-Toluidine SK 2 (e)
8.8 (e)
– – – – – –
Toluol, see Toluene
Toxaphene, see Chlorinated camphene
Tributyl phosphate 0.2 2.2 – – – 5 – 5
Trichloroacetic acid 1 6.7 – –
1,2,4-Trichlorobenzene – – C5 C37 1 7.6 – – 1.4
1,1,1-Trichlorobis (chlorophenyl)ethane – – – – – 1 – 3
1,1,1-Trichloroethane, see Methyl
chloroform
1,1,2-Trichloroethane SK 10 55 – –
Trichloroethylene 50 269 100 535 SK 100 550 MEL 150 820 MEL 28
Trichlorofluoromethane – – C1000 C5710 1000 5710 1250 7140 5
Trichloromethane, see Chloroform
Trichloronaphthalene SK – 5 – – – – – –
Trichloronitromethane, see Chloropicrin
1,2,3-Trichloropropane SK 10 60 – – 50 306 75 460
1,1,2-Trichloro-1,2,2-trifluoroethane 1000 7670 1250 9590 1000 7790 1250 9740 45