GB/T 1033.1 Plastics.Methods for determining density of non-celluar plastics.Part1:Immersion method,liquid pyknometer method and titration method
GB/T 1040.1 Plastics—Determination of tensile properties—Part 1:General principles*, 2018-12-28 Update
GB/T 1043.1 Plastics.Determination of charpy impact properties.Part 1:Non-instrumented impact test
GB/T 16825.1 Metallic materials—Calibration and verification of static uniaxial testing machines—Part1:Tension/compression testing machines—Calibration and verification of the force-measuring system*, 2022-10-14 Update
GB/T 19466.3 Plastics-Differential scanning calorimetry(DSC)-Part 3:Determination of temperature and enthalpy of melting and crystallization