Custom Calibration Standard Back Catalog number: 59418 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DPE-99 2,2',4,4',5-Pentachlorodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 70999 3-Ethyltoluene Price on request 90804 4-Bromofluorobenzene Price on request