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POLYCHLOROBIPHENYLS: METHOD 5503, Issue 2, dated 15 August 1994 - Page 5 of 5 Table 2. Composition of some Aroclors [15]. Major Components Biphenyl Monochlorobiphenyls Dichlorobiphenyls Trichlorobiphenyls Tetrachlorobiphenyls Pentachlorobiphenyls Hexachlorobiphenyls Heptachlorobiphenyls Octachlorobiphenyls
Aroclor 1016 0.1% 1 20 57 21 1 <0.1 none detected none detected
Aroclor 1242 <0.1% 1 16 49 25 8 1 <0.1 none detected
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
Aroclor 1254 <0.1% <0.1 0.5 1 21 48 23 6 none detected
