EPA Method 525.2 - IS/SS Mix Back Catalog number: 37031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1792.20-1MG 3-Aminoperylene, neat, Solvent-neat, Unit 1MG, # of units-1, Cas.no. 20492-13-1 Price on request 92805 Gas Internal/Surrogate Standard Price on request 673951 Parathion-methyl, 100mg Price on request