1,4-Dichloronaphthalene, 1.2mL x 50ug/mL, nonane

2,4-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 15254-64-5

1-Nitropyrene-d9, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93487-20-8

EPA Method 551.1 Surrogate Standard