Chemical Oxygen Demand Back Catalog number: 59592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11698.12-100-IO 2,3,4',5-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 92172 Ethanol Price on request 79078 EPA Method 8330 Analyte Price on request