18 components: 200ug/ml each of Chloroform [CAS:67-66-3] ; cis-1,2-Dichloroethene [CAS:156-59-2] ; Chlorobenzene [CAS:108-90-7] ; Dibromochloromethane [CAS:124-48-1] ; 1,2-Dichloroethane [CAS:107-06-2] ; Ethylbenzene [CAS:100-41-4] ; Styrene [CAS:100-42-5] ; Tetrachloroethene [CAS:127-18-4] ; trans-1,2-Dichloroethene [CAS:156-60-5] ; Tribromomethane [CAS:75-25-2] ; Trichloroethene [CAS:79-01-6] ; Toluene [CAS:108-88-3] ; Vinylchloride [CAS:75-01-4] ; m-Xylene [CAS:108-38-3] ; p-Xylene [CAS:106-4