ASTM D6414

ASTM D6414 is a technical standard for measuring total mercury in coal and coal combustion residues using acid extraction or wet oxidation followed by cold vapor atomic absorption. It is designed to support consistent laboratory testing of mercury content in these materials, which can be important for environmental reporting, process control, and materials evaluation. By defining recognized test methods, the standard helps users obtain results that are more comparable across laboratories and sampling programs.

What is ASTM D6414?

ASTM D6414 is the ASTM standard titled Standard Test Methods for Total Mercury in Coal and Coal Combustion Residues by Acid Extraction or Wet Oxidation/Cold Vapor Atomic Absorption. It focuses on laboratory procedures for determining total mercury using sample preparation by acid extraction or wet oxidation, followed by cold vapor atomic absorption measurement. The standard provides a common technical basis for testing coal-related materials where mercury content needs to be measured in a controlled and repeatable way.

Where is ASTM D6414 used?

This standard is commonly used in laboratories that test coal and coal combustion residues, including ash or similar byproducts from coal-fired operations. It may be applied in quality control, compliance-related testing, and analytical workflows where total mercury determination is needed. Because the method is built around established laboratory techniques, ASTM D6414 is useful for organizations that need defensible results from routine or contract testing of coal-derived materials.

Why is ASTM D6414 important?

ASTM D6414 matters because mercury measurement can affect regulatory, environmental, and operational decisions tied to coal and combustion residues. A recognized ASTM method helps improve consistency in test results, supports procurement and comparison of laboratory data, and reduces uncertainty in reporting. For organizations managing material characterization or compliance programs, using a standardized test method can also help strengthen quality control and lower the risk of inconsistent analytical outcomes.

• Total mercury determination for coal materials
• Acid extraction or wet oxidation preparation
• Cold vapor atomic absorption measurement
• Coal combustion residue testing
• Consistent laboratory reporting and comparison