Chemical Oxygen Demand Back Catalog number: 59592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677971 Chlorpyrifos, 100 µg/ml, Toluene, 1ml Price on request 95414 PAH Standard Price on request S-4256-25-10LW 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