This standard specifies in detail the technical requirements, inspection methods, inspection rules, marks and Encasement of type D Shore hardness gauge. It applies to type D Shore hardness gauge for determination of metal Shore Hardness according to CB/T4341 to ensure the Stability and accuracy of hardness gauge under normal working conditions. The standard refers to a number of national standards, including general technical requirements for testing machines and metal Shore Hardness test methods to ensure that the mass and performance of hardness gauge meet the standard requirements. In the technical requirements part, the working conditions of the hardness gauge, the requirements of the frame and the test bench, and the design requirements of the lifting and operating mechanism are specified to ensure the Reliability and convenience of the hardness gauge.