pH 4.0 Standard @ 25°C

Bifenazate-diazene, 100 µg/ml, Acetonitrile, 1ml

2,2',3,4,4',5',6-Heptabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Aroclor 1242 in Transformer Oil