EPA Method 508.1 & 525.2 Pesticide Standard Back Catalog number: 91970 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9705.10-1G 1,2-Dihydroxynaphthalene, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 574-00-5 Price on request 70022 Atraton Price on request 70725 Leptophos Price on request