16 components: 10ug/ml each of Alpha-HCH [CAS:319-84-6] ; Hexachlorobenzene [CAS:118-74-1] ; Gamma-HCH (Lindane) [CAS:58-89-9] ; Beta-HCH [CAS:319-85-7] ; Heptachlor [CAS:76-44-8] ; Aldrin [CAS:309-00-2] ; Heptachlor-endo-epoxide [CAS:28044-83-9] ; Endosulfan-alpha [CAS:959-98-8] ; 4,4'-DDE [CAS:72-55-9] ; Dieldrin [CAS:60-57-1] ; Endrin [CAS:72-20-8] ; Endosulfan-beta [CAS:33213-65-9] ; 2,4'-DDT [CAS:789-02-6] ; 4,4'-DDD (TDE) [CAS:72-54-8] ; 4,4'-DDT [CAS:50-29-3] ; Methoxychlor (DMTD) [CAS:72