几何产品技术规格 (GPS). 工件和测量设备的测量检查. 第5部分: 指示测量仪器检定试验中的不确定性

[中文适用范围]： ISO 14253的本部分规定了用于评估根据双方商定的测试协议得出的测试值的不确定度的概念和术语，以及在GPS指示测量仪器的验证测试中获得的与仪器指示相关的测试值。 注：测试值的不确定度，称为测试值不确定度，不应与使用指示测量仪器测量工件相关的测量不确定度相混淆。 ISO 14253 本部分仅涵盖前者；有关后者的指导，请参阅 ISO/IEC 指南 98-3 (GUM) 当指示测量仪器的测试包含多个测试值时，一些与仪器指示相关，一些与其他计量特性相关，则涉及 ISO 14253 的这一部分仅具有前者的不确定性。 ISO 14253 的这一部分不提供确保测试协议充分性的指南；相反，一旦给出了测试协议，它就描述了如何评估随后的测试值不确定性。 [外文原描述]： ISO 14253-5:2015 specifies concepts and terms for evaluating the uncertainties of the test values derived according to a test protocol agreed upon by the parties and relative to instrument indication(s), obtained in verification testing of GPS indicating measuring instruments. NOTE The uncertainty of the test values, referred to as test value uncertainty, is not to be confused with the measurement uncertainty associated with using that indicating measuring instrument to measure workpieces. The former only is covered in this part of ISO 14253; for guidance on the latter see the ISO/IEC Guide 98‑3 (GUM) and ISO 14253‑2. When a test of an indicating measuring instrument comprises several test values, some relative to the instrument indication and some to other metrological characteristics, this part of ISO 14253 is concerned with the uncertainty of the former only. This part of ISO 14253 does not provide guidelines to ensure the adequacy of a test protocol; rather, once a test protocol is given, it describes how to evaluate the consequent test value uncertainty.