EPA Method 8260B Surrogate Standard Back Catalog number: 23004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71928 5-Methyl-1H-benzotriazole Price on request 3569.10-K-IO 4-Methylquinoline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 491-35-0 Price on request 680484 2,4,6-Trichlorophenol acetate, 20mg Price on request