EPA Method 8240A Sys Perf Check Cmpds Back Catalog number: 82411 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2077.6-K-IP 2,3,4-Trichlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 15950-66-0 Price on request X9128 4,4’-Methoxychlor Price on request S-4512-100-5T Perdeuterated Internal Standard-All-in-one 15 EU Priority PAHs Price on request