Ask the standards and instruments for rubber tensile test?

The QT- 1 156 rubber tensile testing machine of Gao Tai Instruments is used to test and analyze the mechanical properties of nonmetallic materials such as rubber and silica gel. This testing machine is manufactured according to GB/T20 1 1-92 Test and General Technical Conditions and GB/T16491-KLOC-0/996 Electronic Universal Testing Machine. This testing machine is verified and accepted according to GB/T 12 160-2002 "Provisions on extensometers for uniaxial tests" and GB/T 16825- 1997 "Inspection of tensile testing machines".