Retention Time Verification Standard

2,2',4,4',5-Pentachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 38380-01-1

3-Chlorobiphenyl, 50mg

BHC (beta isomer-13C6), 50µg/ml in Nonane, 2x1,2ml