COD Calibration Standard Back Catalog number: 50434 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52016 Calibration Standards Set Price on request 73500 1-(3,4-Dichlorophenyl)urea Price on request PN-70S 1,2,3,6,7,8-Hexachloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request