This part of GB/T 13477 specifies the method for the determination of the elastic recovery rate of sealing materials after being continuously stretched.
GB/T 13477.17-2002 history
2017GB/T 13477.17-2017 Test method for building sealants—Part 17:Determination of elastic recovery
2002GB/T 13477.18-2002 Test method for building sealants Part 18: Determination of adhesion-in-peel