EPA Method 8330 Analyte Back Catalog number: 79081 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9093 2,4-Dinitrotoluene Price on request 66087 2,2',3,4,5'-Pentachlorobiphenyl (87) Price on request 58019 Potassium (K) Price on request