EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9896.19-10MG Glycidyl palmitoleate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. Price on request 79160 N-Nitrosodiphenylamine Price on request 678407 Fenamiphos-sulfoxide, 100 µg/ml, Acetonitrile, 1 Price on request