EPA Method 8081A Pesticide Standard B Back Catalog number: 92788 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4256-500-10LW Sulfur Calibr. Mix. Dibenzothiophene in White oil (20 cSt)Unit: 10mL screw-capped bottle Matrix White oil White Oil Concentration Isooctane Toluene 3 cSt Price on request 70496 4-Nitroquinoline-1-oxide Price on request 95538 Pesticide Mix #2 Price on request