EPA Method 622.1 Analytes Back Catalog number: 40019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10439.9-100MG Ethenzamide Price on request 98520 PCB PWDM Standard Price on request 2680.6-K-IO 2,3-Dimethylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 632-16-6 Price on request