35 components: 2000ug/ml each of 1,2,3-Trichlorobenzene [CAS:87-61-6] ; Chloroform [CAS:67-66-3] ; cis-1,2-Dichloroethene [CAS:156-59-2] ; 1,2,3-Trichloropropane [CAS:96-18-4] ; Chlorobenzene [CAS:108-90-7] ; 1,2,4-Trichlorobenzene [CAS:120-82-1] ; Dibromochloromethane [CAS:124-48-1] ; Dichloromethane [CAS:75-09-2] ; 1,2,4-Trimethylbenzene [CAS:95-63-6] ; 1,2-Dichloroethane [CAS:107-06-2] ; Ethylbenzene [CAS:100-41-4] ; 1,2-Dichlorobenzene [CAS:95-50-1] ; 1,2-Dichloropropane [CAS:78-87-5] ; 1,3,