PCB Congeners 1000 ppb Back Catalog number: 94587 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674716 Amisulbrom, 100 µg/ml, Acetonitrile, 1ml Price on request 677700 Fluopicolide, 100mg Price on request 31882 EPA Method 507 Nitrogen Phosphorus Pesticide Price on request