Method 1614 Native PAR Stock Solution, in Nonane, 1,2ml Back Catalog number: EO-5278 Availability: In the manufacturer's stock Price on request - + Recommended 91958A EPA Method 1664 - Oil & Grease (Sonicate) Price on request 3344.9-100-HX Chlorpyrifos, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 2921-88-2 Price on request 97278 Aliphatic Surrogate Standard Price on request