EPA Method 525 Standard Back Catalog number: 94574 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675522 Bisphenol C, 100mg Price on request 1744.13-200-T Benzo[h]quinoline, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 230-27-3 Price on request N-12738-250MG Oxolinic acid, 250mg Price on request