Work Item
ASTM WK89689

Revision of C1365-18 Standard Test Method for Determination of the Proportion of Phases in Portland Cement and Portland-Cement Clinker Using X-Ray Powder Diffraction Analysis


Note 2 defines the temperature range for gypsum dehydration. Research has shown that dehydration temperature depends on water vapor pressure. therefor I am balloting the removal of the temperature range as it will not apply to every situation the same.


Developed by Subcommittee: C01.23

Committee: C01

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 02-16-2024

Technical Contact: Adam Oliver