Which company is the TR test going to? Baijian.com is a comprehensive collective owned research institute that integrates testing, inspection, analysis, testing, technical consulting, and other services with CMA and other qualifications recognized by the national metrology certification. It is also rated as a national high-tech enterprise and can issue testing reports within 7-15 working days Testing items: TR test, temperature shrinkage test, etc Testing Standard

ASTM D1329-2008 Test Method for Evaluating Low Temperature Shrinkage Characteristics of Rubber (TR Test Method)

GB/T 7758-2002 Determination of Low Temperature Properties of Vulcanized Rubber Temperature Shrinkage Method (TR Test)

ISO 2921-2011 Determination of Low Temperature Properties of Vulcanized Rubber Temperature Shrinkage Method (TR Test)

ISO DIS 2921-2010 Determination of Low Temperature Characteristics of Vulcanized Rubber Low Temperature Shrinkage Procedure (TR Test)

NF T46-032-2005 Rubber, vulcanized - Determination of low-temperature properties - Temperature shrinkage method (TR test)

NF ISO 2921-2005 Rubber, vulcanized - Determination of low-temperature properties - Temperature shrinkage method (TR test)