ASTM : D 3961 89( 1993 .)e1 (ASTM)1916 Race St., Philadelphia, Pa 19103. Annual Book of ASTM Standards. ASTM , . 1 D 3961; , , , , - . . (e) , ._e1 - 1993 ._1. 1.1 0.5 100 / .1.2 .1.3 , . , . 7 2.2. , :2.1 ASTM:D 329 2D 3437 32.2 :3 OSHA, 29CFR, 1910.1000 1910.120033. 3.1 , 800 0, , 80% 20% (, , . .). , , , . , , , , .3.2 , :I3- + SO2 + H2O - SO3 + 3I- + 2H+ , , :3I- - I3- + 2e-_1 ASTM D-16 D16.0 . 24 1989 . 1990 . D 3961- 80. D 3961- 80 (1985) 1.2 ASTM, 06.04.3 , , DC 20402.3.3 () , . . ,