测量不确定度表示指南 第1部分：简介

[中文适用范围]： 本文件制定了从车间到基础研究的测量不确定度评估和表达的一般规则。因此，这套文件的原则旨在适用于广泛的测量及其应用。附件 A 中的表 A.1 给出了 GUM 各部分的概述。注：本文件中使用首字母缩略词 GUM 时，指的是该套文件。GUM 的单个部分以其相应的 JCGM 编号表示（例如，GUM 第 6 部分为 JCGM GUM-6:2020）。本文件给出了评估、表达和使用测量不确定度的理由（第 2 条）。简要介绍了测量（第 3 条）以及评估测量不确定度时所涉及的决策（第 4 条）。第 5 条简要描述了 GUM 各部分的内容。在每个条款中，都标识了 GUM 的相关部分，以提供进一步的指导。 [外文原描述]： This document establishes general rules for evaluating and expressing uncertainty in measurement from the shop floor to fundamental research. Therefore, the principles of this suite of documents are intended to be applicable to a broad spectrum of measurements and their applications. An overview of the parts of the GUM is given in table A.1 in Annex A. NOTE Where the acronym GUM is used in this document, it refers to the suite of documents. An individual part of the GUM is referred to by its corresponding JCGM numbering (e.g., part 6 of the GUM is JCGM GUM-6:2020). This document gives a rationale for evaluating, expressing and using measurement uncertainty (Clause 2). A brief introduction is given to measurement (Clause 3) and to the decisions involved when evaluating measurement uncertainty (Clause 4). In Clause 5, a brief description of the contents of the parts of the GUM is given. In each of these clauses, the relevant parts of the GUM are identified for further guidance.