EPA Method 8240A - Purgeable Surr Std

Hexachlorobenzene, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 118-74-1

3,5-Dichlorobenzoic acid, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 51-36-5

Brilliant Black PN (E 151), 1g