EPA Method 8260 Internal Standard - Revised Back Catalog number: 21013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678054 Flufenacet ESA sodium salt, 100 µg/ml, Acetonitri Price on request 18000-0568-100AN5 Guanylurea, 100µg/ml in Acetonitrile, 5ml Price on request 79630 Bifenthrin, 1000µg/ml in Acetonitrile, 1ml Price on request