ASTM C167 is the standard test methods document for measuring the thickness and density of blanket or batt thermal insulations. It provides a consistent way to evaluate two key physical properties that influence insulation performance and material verification. For buyers, engineers, and quality teams, this ASTM standard helps support more reliable product comparison, acceptance testing, and specification compliance when working with flexible thermal insulation products.

ASTM C167 standard overview

ASTM C167, titled Standard Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations, focuses on measurement methods rather than product design. Its role is to define how thickness and density are determined for these insulation forms so results are more consistent across testing and documentation. That makes the standard useful in procurement, laboratory testing, and quality control where comparable data is needed for blanket or batt thermal insulations.

Where is ASTM C167 used?

This standard is commonly used wherever blanket or batt thermal insulation needs to be measured and evaluated in a repeatable way. It is relevant to material testing labs, manufacturers, distributors, and project teams that review insulation properties during qualification or incoming inspection. ASTM C167 may also be used when comparing product data sheets, confirming delivered material, or supporting specification-driven decisions for thermal insulation applications.

Practical importance of ASTM C167

In practice, ASTM C167 helps reduce uncertainty when thickness and density are part of a product review or acceptance process. Consistent test methods support fair comparisons between suppliers and help document whether a material aligns with required expectations. For organizations involved in testing, purchasing, or quality control, the standard can improve traceability and reduce the risk of disputes caused by differing measurement approaches.

• Thickness measurement for blanket or batt insulation
• Density evaluation using standardized test methods
• Quality control and product comparison
• Specification and compliance support
• Documentation for testing and procurement