EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-4940-10AN10 Triazophos, 10µg/ml in Acetonitrile, 10ml Price on request 3999.10-K-CY Isobutylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1678-98-4 Price on request 2121-3-18:25G Perfluoro-n-octanoic acid; PFOA, 98%, 25g Price on request