EPA Method 8081A Pesticide Standard B Back Catalog number: 92790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57239 Yttrium (Y) Price on request L331500 Levetiracetam, 50mg Price on request 9125.19 Diflufenican-14C, 40-50mCi, Solvent-, Unit , # of units-, Cas.no. Price on request