EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11841.35-100-T Glycerol-d5 1,3-dipalmitate,100 µg/mL,toluene,1mL, Price on request 687325 Atraton, 100µg/ml in Acetonitrile, 5ml Price on request 31102 EPA Method 551.1 Surrogate Standard Price on request