1,2,3,4,6,9-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Folpet, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 133-07-3

Dibenzothiophene sulfone, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1016-05-3

EPA 1620 Standard 4