EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59580A Conductance @ 20°C [10,000µmho/cm] Price on request 675862 Etoxazole, 100 µg/ml, Ethyl acetate, 5ml Price on request 681024 Coumaphos, 10.0 µg/ml, Cyclohexane, 10ml Price on request