ASTM D6722

ASTM D6722 is the ASTM standard for measuring total mercury in coal and coal combustion residues by direct combustion analysis. It provides a focused test method for evaluating mercury content in solid fuel and ash-related materials, supporting more consistent laboratory reporting and product evaluation. As a technical document, it is especially useful when mercury data must be compared across samples or used for compliance, quality control, or environmental decision-making.

Purpose of ASTM D6722

The purpose of this standard is to define a reliable procedure for determining total mercury using direct combustion analysis. By setting out a common test approach, ASTM D6722 helps laboratories generate results that are more comparable and traceable for coal and coal combustion residues. This matters when mercury levels need to be measured consistently for technical review, purchasing decisions, environmental monitoring, or internal quality programs. It also supports clearer communication between buyers, sellers, and testing laboratories.

Common use cases of ASTM D6722

This standard is commonly used in laboratories that test coal, fly ash, bottom ash, and similar coal combustion residues. It is relevant for sample analysis workflows where total mercury must be measured with a direct combustion method rather than a broader multi-element approach. ASTM D6722 may also be used by facilities, service labs, and procurement teams that need standardized mercury data to evaluate material quality, track process changes, or support regulatory and reporting needs.

Why ASTM D6722 matters

ASTM D6722 matters because mercury testing can affect compliance, environmental oversight, and material acceptance decisions. A recognized standard helps reduce ambiguity in testing methods and improves consistency across different laboratories and sample lots. For organizations buying, selling, or processing coal and combustion residues, it supports more dependable results and lowers the risk of disputes caused by nonuniform analysis. In practice, that makes mercury measurement easier to manage in quality control and documentation.

• Total mercury testing by direct combustion analysis
• Coal and coal combustion residue applications
• Consistent laboratory reporting and comparison
• Support for quality control and compliance workflows