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一、修订背景目前,国内各大量具生产企业生产的深度千分尺在测量范围、结构形式及新技术应用上有了很大变化,各生产企业多按自己的企业标准或者客户订货合同生产,检定部门对新型深度千分尺无统一依据进行检定,技术要求及检定结论均不一致。并且由于JJG24-2004《深度千分尺检定规程》(以下简称“原规程”)使用时间过长,规程编写的基础规范都已修订,原规程已不能完全适合目前深度千分尺的检定,急需修订。
First, the revision of the background At present, the domestic production of a large number of large-scale production with a micrometer depth in the measurement range, structure and application of new technologies have greatly changed, all manufacturers more according to their own business standards or customer order contract production and verification department There is no uniform basis for the new depth micrometer test, the technical requirements and test results are inconsistent. And because JJG24-2004 “depth micrometer test procedures” (hereinafter referred to as “original process ”) is used for a long time, the basic rules of the procedures have been revised, the original procedures can not be fully suitable for the current depth micrometer test, urgent need to be amended.