EPA Method 8240A Sys Perf Check Cmpds Back Catalog number: 82411 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3738.12-100-IO 2,2',4,4'-Tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2437-79-8 Price on request 677839 4-Androstene-3,17-dione, 100mg Price on request S-4284-CS4 Determination of PAH, Multilevel Standards, Deuterated IS Compound Prod. no. Purity CAS no. CS-1 ng/ml CS-2 ng/ml CS-3 ng/ml CS-4 ng/ml SC-5 ng/ml IS ng/ml 10ml RS ng/ml 0,5ml Naphthalene Price on request