EPA Method 525 Surrogate Standard Back Catalog number: 93971 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71959 3-Nitro-o-toluidine Price on request M4H120 2',3,4',5,5'-Pentachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene Price on request 0263.20-K-T Benzo[b]fluoranthene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-99-2 Price on request