ASTM E662

ASTM E662 is the ASTM standard for measuring the specific optical density of smoke generated by solid materials. It is used to help evaluate how much smoke a material may produce during burning or thermal exposure, which matters for product assessment, safety review, and material selection. As a technical document, it provides a consistent basis for comparing smoke-related performance in a controlled test environment.

What is ASTM E662?

ASTM E662, Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials, defines a test approach for determining how dense smoke becomes when solid materials are exposed under specified conditions. The method is focused on optical density, which helps indicate how smoke may affect visibility and overall fire-related performance. It is commonly used as a reference point for testing consistency and for comparing materials in a repeatable way.

Where is ASTM E662 used?

This standard is commonly used in laboratory testing and quality control workflows for solid materials where smoke generation is a relevant performance factor. It may be applied during product development, supplier evaluation, or compliance-related testing when smoke visibility characteristics need to be assessed. ASTM E662 is especially useful wherever solid materials are screened or compared using a standardized smoke test method.

Why is ASTM E662 important?

ASTM E662 helps support more consistent decisions about material performance by providing a recognized test method for smoke generation. For manufacturers, specifiers, and testing laboratories, it can improve comparability between materials and reduce uncertainty in procurement or qualification programs. Using a defined standard also supports quality control and helps align test results with technical and compliance expectations.

• Specific optical density measurement
• Solid material smoke testing
• Comparative performance evaluation
• Quality control and qualification support
• Standardized laboratory procedure