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See Chinese contents: GB/T 4339-2008 GB/T 4339-2008: Test methods for thermal expansion characteristic parameters of metallic materials
This Standard specifies the definitions and symbols, principles, test devices and requirements, specimen preparation, device calibration, measurement procedures, calculation of measurement results, test report, accuracy and deviation, etc. of the thermal expansion characteristic parameter measurement methods of metallic materials and other related solid materials. This Standard specifies the use of a push-rod dilatometer to test the linear thermal expansion of rigid solid materials. This is applicable to the testing of the linear thermal expansion of metallic material specimens within the temperature range of 180 C ~ 900 C with the help of a component composed of the same fused quartz carrier and push rod. It is also applicable to the testing of the linear thermal expansion of specimens with rigid solid characteristics, such as: ceramics, refractory materials, glass and rocks, etc. If components of high-purity alumina are used instead, the testing temperature range can be expanded to 1,600 C; if isotropic graphite is used, then, it can be expanded to 2,500 C.
