EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1074.23-K-IO n-Heptadecylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 19781-73-8 Price on request 70991 2,3,4,5-Tetrachlorophenol Price on request 52311 Palladium / Magnesium Matrix Modifier Price on request