EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96362 Novaluron Price on request 8777.27-1G Isopropylated trisphenyl phosphate (techn.); A detailed analytical certificate stating the degree of isopropylation is included,neat,neat,1g, Price on request 94299 Chlorinated Pesticide Standard Price on request