ASTM D2961/D2961M is the standard practice for determining single-stage total moisture less than 15% in coal reduced to a 2.36 mm [No. 8 sieve] topsize. It provides a consistent technical basis for measuring moisture in a defined coal preparation condition, helping users compare results with greater confidence. For laboratories, buyers, and producers working with coal quality data, this standard supports more reliable testing and documentation under a clearly defined ASTM method.

What is ASTM D2961/D2961M?

This ASTM standard describes a practice for measuring total moisture in coal using a single-stage approach, with the sample reduced to a 2.36 mm [No. 8 sieve] topsize and moisture content below 15%. The designation D2961/D2961M indicates the document is available in inch-pound and metric units. As an ASTM standard, it is intended to guide a controlled testing practice so moisture determinations are handled in a uniform, repeatable way across comparable coal samples.

Where is ASTM D2961/D2961M used?

ASTM D2961/D2961M is commonly used in coal testing environments where moisture content must be measured on prepared samples with a defined topsize. It is relevant to laboratories, quality control programs, and commercial transactions involving coal properties and coal analysis reports. The standard is especially useful when sample handling and moisture evaluation need to follow an established practice that fits routine testing workflows and supports consistent reporting.

Why is ASTM D2961/D2961M important?

This standard matters because moisture can affect coal valuation, handling, and data interpretation. ASTM D2961/D2961M helps reduce variation by defining a specific practice for a specific sample condition, which supports better consistency in test results and procurement decisions. Using a recognized ASTM method can also improve confidence in reported values, reduce disputes between parties, and strengthen quality control for coal testing programs. ASTM D2961/D2961M is therefore useful wherever dependable moisture data is needed.

• Single-stage total moisture practice
• Coal reduced to 2.36 mm [No. 8 sieve]
• Applies to moisture less than 15%
• Supports routine coal testing and reporting
• Useful for quality control and procurement