EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BPAP 4,4'-(1-Phenylethylidene)bisphenol, 1.2ml x 50ug/ml, methanol Price on request 71824 1-Chloro-4-nitrobenzene Price on request 96730 Diethylene glycol Price on request