n-Perfluoroheptanoic acid

a-1,2,3,4,5,6-Hexachlorocyclohexane, 1.2mL x 100ug/mL, nonane

Hexachlorobenzene, 100 µg/ml, Acetonitrile, 5ml

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K