EPA Method 8240A Calibration Check Compounds Back Catalog number: 82412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8223.12-100 Triazophos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 24017-47-8 Price on request 1531.22-K-TX5 Indeno[1,2,3-cd]pyrene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 203578-33-0 Price on request 92537 Indeno(1,2,3-cd)pyrene Price on request