Work Item
ASTM WK93575

Revision of D6647-18(2024) Standard Test Method for Determination of Acid Soluble Iron via Atomic Absorption

Rationale

Testing the carbon in its supplied form ensures results reflect actual application performance. Eliminating this step improves reproducibility and aligns with industry practice by evaluating the material as delivered and used.
Restricting iron measurement to Atomic Absorption Spectroscopy (AAS) is unnecessarily limiting. Modern instruments like ICP-OES, ICP-MS, and other validated technologies offer equivalent or superior accuracy in the specified range (0.0030%–0.050%).

Details

Developed by Subcommittee: D28.02

Committee: D28

Staff Manager: Kelly Paul

Work Item Status

Date Initiated: 01-22-2025

Technical Contact: Lisa Kohlmann

Item: 000

Ballot:

Status: