EPA Method 502/524 Surrogate Standard #2 Back Catalog number: 19267 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678658 Ethofumesate-2-keto, 10mg Price on request 9975.6-K-IP 2,3,6-Trinitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 603-10-1 Price on request 676528 Methyl-1,2,3,6-tetrahydrophthalic Anhydride (mixtu Price on request