Work Item
ASTM WK92155

New Test Method for Determining the Free Chloride of Magnesium Oxide Panels

1. Scope

Magnesium oxychloride-based construction panels may contain some quantity of free-chloride ion that are not integral to the magnesium oxychloride binding phase. Free-chloride ion may undergo accelerated leaching from the panel and contribute to corrosion of the surrounding structure. This test method will determine the quantity of free-chloride ion not bound in the MOC cement phase. This test may also be used for determining the free-chloride of other magnesium oxide based construction panels.

Keywords

Magnesium Oxychloride; MgO Panels; Free Chlorides

Rationale

As the magnesium oxide industry continues to grow, there is no entity that is addressing the free chloride testing as of yet. ASTM test methods are routinely used for this process in industry and would be a good resource for the global market. End users, specifiers, manufacturers, and code bodies would benefit from a universal method to analyze free chlorides.

The title and scope are in draft form and are under development within this ASTM Committee.

Details

Developed by Subcommittee: E06.21

Committee: E06

Staff Manager: Frank McConnell

Work Item Status

Date Initiated: 09-03-2024

Technical Contact: Jarrett Davis