EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2195.11-100-ME 1-Methyl-4-nitronaphthalene, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 880-93-9 Price on request 51187 Unleaded 87 Octane (ETOH) 50% Weathered Price on request 9449.12-100-AN Endrin ketone Price on request