EPA Method 8240A - Purgeable Surrogate Std

2,6-Di-tert-butyl-4-methylphenol (2,6-Bis(1,1-dimethylethyl)-4-methylphenol), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 128-37-0

3-Hydroxynaphthalene-2,7-disulfonic acid disodium

alpha-Endosulfan, 10.0 µg/ml, Ethyl acetate, 10m