EPA Method 525 Surrogate Standard

Heptachlor-exo-epoxide (cis-), 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 28044-83-9

Phosphorus (P)

Lupeol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 545-47-1