BTEX solution with Haloethanes 2151,5 Methyl tert butyl ether 1355,2 1,2-Dichlorethane 1,2-Dibromoethane 1300,6 Benzene 1264,7 Toulene 1268,8 Ethylbenzene 1267,8 o-xylene 1266,8m-xylene 1265,8 p-xylene Concentration: 1,0mg/ml