EPA Method 525 - PCB Standard Back Catalog number: 19063 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3137.12-K-IO Dodecanoic acid (Lauric), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 143-07-7 Price on request 79212 Decafluorobiphenyl Price on request 682295 1-Chloronaphthalene (technical), 1000mg Price on request