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JJG734-2001《力标准机检定规程》包含静重式、杠杆式、液压式和叠加式4种力标准机。这4种力标准机的结构和原理不尽相同,计量性能要求、检定项目和检定方法也有不同,其中对不同类型的力标准机的检定方法缺少针对性,在执行过程中容易引起误解和争议。单独制定JJG1117-2015《液压式力标准机检定规程》,将有关液压式力标准机的内容从JJG734-2001中分离出来并加以完善,有利于液压式力标准机检定
JJG734-2001 “force standard machine verification procedures” include static weight, leverage, hydraulic and superposition of 4 kinds of force standard machine. The structure and principle of these four kinds of force standard machines are different. Metrological performance requirements, test items and test methods are also different. The verification methods of different types of force standard machines are lack of pertinence, which may easily lead to misunderstanding and controversy in the implementation process. Separately developed JJG1117-2015 “hydraulic force standard test procedures,” the content of the hydraulic force standard machine from JJG734-2001 in the separation and improved, is conducive to hydraulic force standard machine test