Due to scheduled maintenance, select standards will be unavailable for purchase beginning Saturday, October 11, 2025, at 12:00 a.m. Eastern (GMT -5) ending Monday, October 13, 2025 at approximately 12:00 p.m. Eastern (GMT -5).
Using Artificial Intelligence (AI) on ASTM standards and related intellectual property is prohibited. Violations will result in suspension of access.
New Practice for the Determination of Thermal Penetration Depth by Thermal Analysis
1. Scope
The practice describes the determination of penetration depth from thermal conductivity, thermal diffusivity, or thermal effusivity data obtained from other methods.
Penetration depth, or some multiple thereof, is considered to be the necessary test specimen thickness suitable for surface test methods where radiation is applied at the surface.