Residual Solvents Class 1 acc. to Ph Eur Ver 10: 5 components; Benzene [CAS:71-43-2]  2mg/l ; Tetrachloromethane (Carbon tetrachloride) [CAS:56-23-5]  4mg/l ; 1,2-Dichloroethane [CAS:107-06-2]  5mg/l ; 1,1-Dichloroethene [CAS:75-35-4]  8mg/l ; 1,1,1-Trichloroethane [CAS:71-55-6]  1500mg/l  in Dimethyl sulphoxide