GB/T 20671.2-2006
Classification system and test methods for nonmetallic gasket materials-Part2:Standard test method for compressibility and recovery of gasket materials (English Version)

Standard No.: GB/T 20671.2-2006
Language: Chinese, Available in English version
Release Date: 2006
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20671.2-2006

Scope: This test method specifies the method for determining the short-term compressibility and rebound rate of gasket materials at room temperature. It is applicable to gasket materials in the form of plates, gaskets formed in place, and gaskets cut from plate in some cases. This method is not suitable for testing the compressibility (commonly referred to as "creep") or rebound rate (the opposite is commonly referred to as "compression set") of materials under long-term pressure, and it does not take into account the non-room temperature conditions. next test. If desired, the data obtained from the test can also be used to calculate the elastic recovery rate (the amount of rebound expressed as a percentage of the thickness after compression) of the sample.

GB/T 20671.2-2006 Referenced Document

ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
GB/T 20671.1-2006 Classification system and test methods for nonmetallic gasket materials-Part1:Standard classification system for nonmetallic gasket materials

2006 GB/T 20671.2-2006 Classification system and test methods for nonmetallic gasket materials-Part2:Standard test method for compressibility and recovery of gasket materials