1.1 本指南涵盖了根据通用材料规范中提出的方法，由ASTM国际组织开发和维护的耐火试验方法测量不确定度的评估和表达。在此过程中，还讨论了从循环中获得的精度数据的使用。 1.2 本标准中提出的指南也可用于评估和表达与火灾试验结果相关的不确定性。然而，如果无法解释某些不确定性来源，则可能无法量化火灾试验结果的不确定性。 该问题将在中进行更详细的讨论 附录X2 . 1.3 本指南的应用仅限于以工程单位提供定量结果的测试。例如，这包括基于耗氧量热法测量燃烧试样热释放率的方法，例如试验方法 E1354 . 1.4 本指南不适用于以索引或二进制结果形式提供结果的测试（例如，通过/失败）。例如，根据试验方法获得的火焰传播指数的不确定性 E84 无法确定。 1.5 在某些情况下，需要额外的指南来补充本标准。例如，低水平热释放率测量不确定度的表达需要额外的指导，与采样相关的不确定度没有明确解决。 1.6 本消防标准不能用于提供定量措施。 1.7 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 火灾测试数据的用户通常需要测试报告中数据质量的定量指示。这种定量指示被称为“测量不确定度”。 估计火灾试验结果的不确定性有两个主要原因。 5.1.1 ISO/IEC 17025要求合格的测试和校准实验室包括报告中所示结果的不确定性估计。 5.1.2 消防安全工程师需要了解分析中使用的输入数据的质量，以确定分析结果的不确定性。

1.1 This guide covers the evaluation and expression of uncertainty of measurements of fire test methods developed and maintained by ASTM International, based on the approach presented in the GUM. The use in this process of precision data obtained from a round robin is also discussed. 1.2 The guidelines presented in this standard can also be applied to evaluate and express the uncertainty associated with fire test results. However, it may not be possible to quantify the uncertainty of fire test results if some sources of uncertainty cannot be accounted for. This problem is discussed in more detail in Appendix X2 . 1.3 Application of this guide is limited to tests that provide quantitative results in engineering units. This includes, for example, methods for measuring the heat release rate of burning specimens based on oxygen consumption calorimetry, such as Test Method E1354 . 1.4 This guide does not apply to tests that provide results in the form of indices or binary results (for example, pass/fail). For example, the uncertainty of the Flame Spread Index obtained according to Test Method E84 cannot be determined. 1.5 In some cases additional guidance is required to supplement this standard. For example, the expression of uncertainty of heat release rate measurements at low levels requires additional guidance and uncertainties associated with sampling are not explicitly addressed. 1.6 This fire standard cannot be used to provide quantitative measures. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Users of fire test data often need a quantitative indication of the quality of the data presented in a test report. This quantitative indication is referred to as the “measurement uncertainty”. There are two primary reasons for estimating the uncertainty of fire test results. 5.1.1 ISO/IEC 17025 requires that competent testing and calibration laboratories include uncertainty estimates for the results that are presented in a report. 5.1.2 Fire safety engineers need to know the quality of the input data used in an analysis to determine the uncertainty of the outcome of the analysis.