Lithium hydride 7580-67-8 - 0.025 - - - - LPG (liquified petroleum gas) 68476-85-7 1000 1800 - - Carc. 1B - Magnesite 546-93-0 - 10 - - - - (a) Magnesium oxide (fume) 1309-48-4 - 10 - - - - Malathion Maldison 121-75-5 - 10 - - - Sk:Sen Maleic anhydride 108-31-6 0.25 1 - - - Sen Manganese tricarbonyl (as Mn) Tricarbonyl (eta cyclopentadienyl) manganese 12079-65-1 - 0.1 - - - Sk Manganese, dust & compounds (as Mn) - 1 - - - - Manganese, fume (as Mn) Manganese tetroxide 7439-96-5 - 1 - 3 - - Man-Made Vitreous (Silicate) Fibres (MMVF) Synthetic mineral fibres (SMF) Refractory Ceramic Fibres (RCF),(h) Special Purpose Fibres(i) and High Biopersistence MMVF(l) - 0.5 f/mL (respirable) and 2 mg/m3 (inhalable dust)(j) - - Carc. 1B(o) - (h) (i) (j) (l) (o) [Glass wool, rock (stone) wool, slag wool and continuous glass filament](i)(k) and Low Biopersistence MMVF(m) - 2 mg/m3 (inhalable dust)(j) - - Carc. 2(i)(k) or - (i) (j) (k) (m) (n) (o) Mercury, alkyl compounds (as Hg) - 0.01 - 0.03 - Sk Mercury, aryl compounds (as Hg) - 0.1 - - - Sk
Methylamine 74-89-5 10 13 - - - - Methylcyclohexane 108-87-2 400 1610 - - - - Methylcyclohexanol 25639-42-3 50 234 - - - - o-Methylcyclohexanone 583-60-8 50 229 75 344 - Sk Methylcyclopentadienyl manganese tricarbonyl (as Mn) Tricarbonyl - 0.2 - - - Sk 4,4’-Methylene MOCA MBOCA 101-14-4 0.02 0.22 - - Carc. 1B Sk Methylene 5124-30-1 See Isocyanates, all - Sen Methylene bisphenyl isocyanate (MDI) Diphenylmethane diisocyanate MDI 101-68-8 See Isocyanates, all Carc. 2 Sen Methylene chloride Dichloromethane 75-09-2 50 174 - - Carc. 2 Sk 4,4'-Methylene dianiline DADPM DDM MDA 101-77-9 0.1 0.81 - - Carc. 1B Sk:Sen 5-Methylheptan-3-one Ethyl amyl ketone 541-85-5 10 53 20 107 - - Methyl-tert butyl ether 1634-04-4 25 92 75 275 - - Metribuzin Sencor 21087-64-9 - 5 - - - - Mevinphos Phosdrin 7786-34-7 0.01 0.092 0.03 0.27 - Sk Mica 12001-26-2 - 2.5 - - - - Mineral turpentine - 480 - - - - Molybdenum, insoluble compounds (as Mo) 7439-98-7 - 10 - - - - Molybdenum, soluble compounds (as Mo) - 5 - - - - Monochloroacetic acid 79-11-8 0.3 1.2 - - - Sk Monocrotophos Azodrin 6923-22-4 - 0.25 - - - - Morpholine 110-91-8 20 71 - - - Sk
76-11-9 500 4170 - - - - 1,1,2,2-Tetrachloroethane 79-34-5 1 6.9 - - - Sk Tetrachloronaphthalene 1335-88-2 - 2 - - - - Tetraethyl lead (as Pb) 78-00-2 - 0.1 - - - Sk 1,1,1,2-Tetrafluoroethane HFC 134a 811-97-2 1000 4240 - - - - Tetrahydrofuran 109-99-9 100 295 - - - Sk Tetramethyl lead (as Pb) 75-74-1 - 0.15 - - - Sk Tetramethyl succinonitrile 3333-52-6 0.5 2.8 - - - Sk Tetranitromethane 509-14-8 1 8 - - - - Tetrasodium pyrophosphate 7722-88-5 - 5 - - - - Tetryl 479-45-8 - 1.5 - - - Sen Thallium, soluble compounds (as Tl) - 0.1 - - - Sk 4,4'-Thiobis 96-69-5 - 10 - - - - Thioglycolic acid Mercaptoacetic acid 68-11-1 1 3.8 - - - Sk Thionyl chloride 7719-09-7 1 Peak limitation 4.9 Peak limitation - - - - Thiram Tetramethyl thiuram disulphide 137-26-8 - 1 - - - Sen Tin, metal 7440-31-5 - 2 - - - - Tin, organic compounds (as Sn) - 0.1 - 0.2 - Sk: See (g) Tin oxide & inorganic compounds, except SnH4 (as Sn) - 2 - - - - Titanium dioxide 13463-67-7 - 10 - - - - (a) Toluene 108-88-3 50 191 150 574 - Sk Toluene-2,4-diisocyanate (TDI) TDI 584-84-9 See Isocyanates, all Carc. 2 Sen
Yttrium, metal & compounds (as Y) - 1 - - - - Zinc chloride (fume) 7646-85-7 - 1 - 2 - - Zinc chromates (as Cr) 11103-86-9 13530-65-9 37300-23-5 - 0.01 - - Carc. 1A Sen Zinc oxide (dust) 1314-13-2 - 10 - - - - (a) Zinc oxide (fume) 1314-13-2 - 5 - 10 - - Zirconium compounds (as Zr) - 5 - 10 - -