PCB Congeners 1000 ppb Back Catalog number: 94587 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11684.12-100-IO 2,2',3,4-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 687318 1-Methyl-4-nitroso-piperazine, 50mg Price on request 57480 Mercury (Hg) Price on request