EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 97738 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71459 Paraoxon Price on request 2867.12-50-IO 2,3',4,4',5-Pentachlorobiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 446254-80-4 Price on request 11801.13-50-NN Triclosan methyl ether,50 µg/mL,n-nonane,1mL, Price on request