EPA Method 515.1 Surrogate Standard

Hop-21(22)-ene (17ß(H)), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1615-92-5

Dibenz[a,h]anthracene-d14, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 13250-98-1

Hexachloro(phenyl)norbornene, 1.2ml x 50ug/ml, toluene