EPA Method 515.3 - Derivatized acids Back Catalog number: 30151 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3099.12-50-IO 2,4',5-Tribromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 59080-36-3 Price on request 58083 Bismuth (Bi) Price on request 674559 Fenamiphos, 250mg Price on request