EPA Method 525 Standard Back Catalog number: 94574 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1992.12-50-IO 2,3,3',4,4',5,6-Heptabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 189084-68-2 Price on request 8537.16-250MG n-Butyl iso-butyl phthalate (n-Butyl 2-methylpropyl phthalate), neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 17851-53-5 Price on request 70815 Promecarb Price on request