EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79420 2-Methylnaphthalene Price on request 31181 EPA Method 505 Analytes Conc Price on request DPE-28 2,4,4'-Trichlorodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request