EPA Method 507 - Performance Check Solution Back Catalog number: 19130 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680645 Pyrifluquinazon, 50mg Price on request 1299.5-K-ME n-Pentane, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 109-66-0 Price on request 1969.12-5MG 2,3',4,4',6-Pentabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 189084-66-0 Price on request