SV calibration mix contains bis(2-chloroethoxy)methane, bis(2-chloroethyl)ether, bis(2-ethylhexyl)phthalate, 4-bromophenyl phenyl ether, benzyl butyl phthalate, 2-chloronaphthalene, 4-chlorophenyl phenyl ether, dimethylphthalate, di-n-butylphthalate, di-n-octylphthalate, N-nitrosodimethylamine, N-nitroso-di-n-propylamine, N-nitrosodiphenylamine, 2,2'-oxybis(1-chloropropane).