PCB No. 55, 100µg/ml in Isooctane, 1ml

Ditallow dimethyl ammonium chloride, hydrogenated form, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 61789-80-8

Mass-Labelled PBB Solution/Mixture, 1.2ml, nonane

QC Standard 2