EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9046.20-10MG 7-Oxodehydroabietic acid, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 18684-55-4/68684-55-4 Price on request 0254.20-200-IO 2,2'-Binaphthyl, 200µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 612-78-2 Price on request 79150 4,4’-DDT Price on request