Chloroparaffin C14-C17 52% Cl, 100µg/ml in CY, 10ml

2,2',3,4',5,5',6-Heptachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane

Methylmalonic acid, 100 µg/ml, Acetonitrile, 1ml

Method 525.2 Solution A