EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 97738 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11012.17-K-IO Diisononyl cyclohexane-1,2-dicarboxylate ,1000 µg/mL,isooctane,1mL, Price on request PFS-537-SPDS 537.1 Surrogate primary dilution std 14 134,63 Kč L-PFNS Sodium perfluoro-1-nonanesulfonate, 1.2ml x 50ug/ml, methanol Price on request