Work Item
ASTM WK86217
Revision of D6656-16(2021) Standard Test Method for Determination of Chromic Oxide in Wet Blue (Perchloric Acid Oxidation)
Rationale
Add text to clarify reason for the use of phosphoric acid in the method. Add data to support non-use of phosphoric acid when iron content is not considered sufficient to interfere. Add optional steps that allow use of reduced sample size and chemicals to obtain equivalent results. Clarify that a result is the average of two determinations.
Work Item Status
Date Initiated: 05-03-2023
Technical Contact: Okey Abara
Item: 003
Ballot: D31 (24-01)
Status: Withdrawn From Balloting
Item: 008
Ballot: D31 (24-02)
Status: Ballot Item Approved