New Test Method for Determination of Coal Combustion Residuals (CCR) in Soils and Sediments by Polarized Light Microscopy
1. Scope
The objective is to develop a standard using Polarized Light Microscopy for measuring coal combustion residuals (CCR) materials is soils and sediments. CCR Materials include fly ash, coal ash, boiler slag, and flue gas desulfurization solids.
There are several laboratories currently with internal procedures using this PLM approach for fly and coal ash (only) that provide quantitative measurement in soils and solids. The approach has been accepted by state regulators. The objective is to standardize this for the obvious advantages of a single approach with data (laboratory studies) to support the use.
Keywords
Coal Combustion Residuals; Polarized Light Microscopy; Soil; Sediment
Rationale
The need for a recognized standard comes from the US EPA Legacy CCR Surface Impoundments(SI) and CCR Management Units
(CCMU) Final Rule found at: Final Rule - Legacy Coal Combustion Residuals Surface Impoundments and CCR Management Units | US EPA
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 07-08-2025
Technical Contact: David Gratson
Item: 000
Ballot:
Status: