EPA Method 601 Internal Standard Back Catalog number: 19094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95453 PCB Congeners & Hexachlorobenzene Mix #4 Price on request 10435.20-10MG 4-Cyano-4-heptylbiphenyl Price on request 8979.47-100-ME 3-Chloro-1,2-propandiol-dibehenate-d5, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request