EPA Method 531.1 - Analytes Back Catalog number: 30042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3620.12-K-IO 3,3'-Difluorodiphenyl ether, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1800-48-2 Price on request 680962 Fipronil carboxamide, 100 µg/ml, Ethyl acetate, Price on request 70100 4,4’-DDE Price on request