Solids (EPA Methods 160.1,.2,.3)

2,2',3,4,4',5-Hexachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 35694-06-5

Pesticide Mix (Acetochlor, Metazachlor, Alachlor, Terbuthylazine, Terbuthylazine-desethyl), 10µg/ml in Hex/1% AC, 1ml

Tin (Sn), 1000µg/ml in in 2%-HNO3 / 6%-HCl, 100ml