This SAE Recommended Practice is applicable for determining the thickness of various resilient materials, such as insulating padding used in the automotive industry. This test method is intended to establish a uniform procedure for determining the thickness of various resilient thermal and acoustical insulating pad materials.
This method has been significantly modified from the earlier version, including the apparatus, sample size, conditioning, and procedure. This method provides a way to measure the thickness of a resilient insulating padding correctly as the thickness affects the sound absorption performance and the thickness of the padding needs to be reported for which the absorption data is provided. The thickness of the resilient insulating padding may need to be reported for applications other than absorption data also.