EPA Method 8330 Analyte Back Catalog number: 79075 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C10202000 4-Amino-2´,3-dimethylazobenzene, certified, 0.25g Price on request 8769.0-1G Polyphosphoric acids ammonium salt, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 68333-79-9 Price on request CLM-6847-MT-1.2 Mono(3-carboxypropyl)phthalate-13C2, 1,2ml Price on request