EPA Method 8240A - Purgeable Surrogate Std Back Catalog number: 24002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54290 COD from KHP Price on request 8763.20-10MG 1-n-Heptyl-2-phenylbenzimidazole, neat, Solvent-neat, Unit 10MG, # of units-33, Cas.no. 305347-16-4 Price on request 10004.14 (1R,2S,3R,4S)-rel-1,2,3,4-Tetrahydro-phenanthrene-1,2,3,4-tetrol, , Solvent-, Unit , # of units-, Cas.no. 697287-37-9 Price on request