EPA Method 548 Calibration Solution Back Catalog number: 30050 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8707.12-5MG 2,2',3,4',5,5',6-Heptachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 52663-68-0 Price on request 71600 Propamocarb, 1000µg/ml in MeOH, 1ml Price on request 70224 Napropamide, 1000µg/ml in MeOH, 1ml Price on request