EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 92984 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended H942565 (2R)-2-Hydroxyglutaric Acid Disodium Salt, 25mg Price on request 2233.17-2-AN Aflatoxin B1, 2µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1162-65-8 Price on request 673890 Tetraconazole, 100mg Price on request