PCB Congeners 1000 ppb Back Catalog number: 94587 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674671 Iodixanol, 100mg Price on request 32079 EPA Method 549.1 Analytes Price on request R250202 all-trans-Retinoic Acid-d5 (major), 1mg Price on request