: D 5769 - 98 , - 1 D 5769; , , , . . () . 1. 1.1 , , , , , , , / (/) 1.2 , : - 0.1 4%, 1 13%, (6 12) 10 42%. , , -, , . 1.3 , 0.01% 0.1% . 1.4 , , . 1.5 , , . , .2. 2.1 (ASTM):D 1298 , ( ), (API), .D 4052 . D 4057 . D. 4307 . _1 D-2 D.02.04 . 10 1998. 1998. D 5769 95.2 (ASTM), 05.01 (ASTM), 05.02 ASTM, 100 , 700, , 19428-2959, .3. 3.1 , : 3.1.1 , . 3.1.2 , , = (S+C)/C (1) , S = , C = .3.1.3 , (WSOT) , .3.1.4 , , - , , , , . . . 3.1.5 - /,
