4-Hydroxybenzoic acid, 1000mg

2'-Fluoro-2,3,3',4,5,6-hexachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

EPA Method 537 Surrogate Primary Dilution Standard, in MeOH, 1,2ml

Method 8121 - Surrogate Standard