EPA Method 552,552.1,552.2 Internal Std Back Catalog number: 30105 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59317 Phenol Price on request 675165 Ethofumesate, 100 µg/ml, Acetonitrile, 5ml Price on request 71976 trans-Decahydronaphthalene Price on request