Work Item
ASTM WK84506

Revision of D7922-21 Standard Test Method for Determination of Glycol for In-Service Engine Oils by Gas Chromatography


Expand instrument configuration to include a split/splitless inlet as the interface between the headspace sampler transfer line and the chromatographic capillary column. Remove sections 6.1 and 6.11 describing glycol carry-over due to perceived compound "stickiness" in a split/splitless inlet. This rational is erroneous because glycols are first derivatized before transfer from the headspace sampler to the gas chromatograph. Change section 7.3 to allow the use of a split/splitless inlet. Change Table X1.1 to allow use of a split splitless inlet and provide example opening conditions for the split/spliltess inlet.


Developed by Subcommittee: D02.04.0L

Committee: D02

Staff Manager: Alyson Fick

Work Item Status

Date Initiated: 12-09-2022

Technical Contact: James McCurry

Item: 000