1,2,4-Butanetriol, 1mg/ml in pyridine, 5 x 20ml

PCB No. 209 10 µg/mL in Isooctane, 10ml

Laboratory Fortification Standard

1,4,6-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2131-42-2