Phthalic acid, butyloctyl ester, certified, 0.25g

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

Sulfur in Isooctane - 0.001 Wt%

PCB-Mix 32, 10µg/ml in Acetone, 1ml