ASTM E2653

ASTM E2653 is a practical standard for conducting an interlaboratory study to determine precision estimates for a test method when fewer than six laboratories participate. It helps define a structured approach for evaluating repeatability and reproducibility under limited-study conditions, which can be important when a method is new, specialized, or difficult to run across many sites. For organizations that need dependable test-method performance data, this standard supports more consistent technical decision-making and documentation.

Overview of ASTM E2653

The ASTM E2653 standard addresses how to carry out an interlaboratory study when the number of participating laboratories is below the level typically used in larger precision programs. Its focus is on generating precision estimates for a test method in a controlled and systematic way, even with a smaller test network. This makes it a useful technical reference for labs, method developers, and quality teams that need a recognized practice for organizing and interpreting limited interlaboratory data.

Common use cases of ASTM E2653

This standard is commonly used during test method development, method validation support, and precision assessment when only a small number of laboratories can participate. It may be relevant for specialized materials testing, early-stage standardization work, or situations where access to qualified labs is limited. ASTM E2653 provides a clear framework for studies that still need defensible precision estimates, helping users compare results and document method behavior in a structured way.

Benefits of using ASTM E2653

Using ASTM E2653 can improve confidence in test method performance when broader interlaboratory participation is not practical. It supports more consistent study design, clearer precision estimates, and better-quality supporting data for compliance or internal evaluation. For procurement, product qualification, and quality control programs, this can reduce uncertainty and help teams make better decisions about whether a method is suitable for routine use or further refinement.

• Interlaboratory precision study guidance
• Designed for fewer than six laboratories
• Supports repeatability and reproducibility estimates
• Useful for method development and validation
• Helps document test method performance