PCB Congeners Back Catalog number: 94597 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93971 EPA Method 525 Surrogate Standard Price on request 72772 1,2-Dihydro-1,1,6-trimethylnaphthalene Price on request PN-19S 1,3,5-Trichloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request