Document XRprOnQ6YeZ92GDvbbdwvBjqG

1315 Substance 1,1,2.2-Tetrachloroethane--Skin Tetrachloroethylene see Perchtoroethy- lene Tetrachioromethane see Carbon tetra chloride Tetrachloronaphthalene - Skin Tetraethyl lead (as Pb)-Skin Tetrahydrofuran Tetramethyt lead (TMl) (as Pb)--Skin Tetramethyf succmonitrile--Skin Tetranitromethane Tetryl (2.4,6-tnnitrophenylmethylnitra- mine)-Skin Thallium (soluble compounds)-Skin Thiram Tin (inorganic empds. except oxide) Tm (organic empds) Titanium dioxide Toluene (toluol) : Toluene-2 4-dusocyanate o-Toluidme--Skin Toxaphene, see Chlonnated camphene Tributyl phosphate 1,1 1-Tnchloroethane, see Methyl chloro form 1,1 2-Trichloroethane--Skin Trichloroethylene Tnchloromethane, see Chloroform Tnchloronaphthalene -- Skin 1 2,3-Tnchloropropane 1.1,2-Tnchloro 1,2,2-tnfluoroethane Tnethylamine Trifluoromonobromomethane 2,4,6-Trinitrophenol. see Picnc acid 2,4 6-Tnnitrophenylmethylmtramine. see Tetryl Tnmtrototuene--Skin Tnorthocresyt phosphate Triphenyl phosphate Turpentine * Uranium (soluble compounds) (insoluble compounds) C Vanadium (VjO.dust) (V,0% fume) Vinyl benzene, see Styrene ppm8 5 mg/cu m' 35 200 05 1 200 002 5 2 0 075 590 0 075 3 8 15 01 5 2 01 15 750 0 14 22 5 10 100 50 1 000 25 1.000 45 535 5 300 7 600 100 6 100 - 15 - 01 -3 too 560 0 05 - 0 25 - 05 01 C Vinyl chloride Vinylcyanide, see Acrylonitrile Vinyl toluene Warlarin Xylene (xylol) Xyltdine--Skin Yttnum Zinc chlonde fume Zinc oxide fume Zirconium compounds (as Zr) Radioactivity For permissible concentrations ot radioisotopes in air, see U S Department ot Com merce, National Bureau of Standards Handbook 69. Maximum Permissible Body Burdens and Maximum Permissible Concentrations of Radionuclides in Air and in Water for Occupational Exposure 'June 5. 1959 Also see US Depart ment of Commerce National Bureau of Stan dards Handbook 59 Permissible Dose from External Sources of Ionizing Radiation " Septem ber 24, 1954 and addendum of Apnl 15 1956 500 100 - 100 5 * - - * 1 300 480 01 435 25 1 1 5 5 * Parts oi \apor nr gas per million p irts of Air by \olutn< at 25 C and 760 mm Hft prcssuie ^Approximate milligrams ol particulate per cubic meter of air dAn atmospheric concentration of not more t!> ui 0 02 ppm, or personal protection may he necessary to asotd headache A numbers sec specific nttmlicr in Appendix A C substances see Appendix C * 1968 addition See Notice of Intended Changes