1.1 本指南描述了根据规范制造的工业铂电阻温度计精度验证所需的技术和设备 1137欧元/1137米欧元 以及校准不确定性的评估。所述程序适用于-200°C至650°C的温度范围。 1.2 本指南不打算描述用作校准标准或标准铂电阻温度计的铂电阻温度计校准所需的程序。因此，这些类型仪器的校准不在本指南的范围内。 1.3 工业铂电阻温度计有多种款式和配置。 本指南并不旨在确定在所需温度范围内进行校准的任何特定设计、样式或配置的适用性。 1.4 不确定度的评估基于JCGM 100:2008“测量数据评估——测量不确定度表达指南”和ANSI/NCSL Z540.2-1997“美国测量不确定性表达指南”中所述的当前国际惯例 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 本指南用于验证工业铂电阻温度计的电阻-温度关系，以满足规范的要求 1137欧元/1137米欧元 它旨在为校准和不确定度评估提供一致的方法，同时仍允许用户在选择仪器和仪表方面具有一定的灵活性。 可以理解，所获得的不确定度的极限在很大程度上取决于所使用的仪器和仪表。因此，由于本指南在方法上没有规定，它提供了不确定度评估的详细说明，以适应可能使用的各种仪器和仪表。 5.2 本指南主要用于满足要求符合规范的应用 1137欧元/1137米欧元 然而，所描述的技术可能适用于需要更精确校准的应用。 5.3 许多应用要求使用最小测试不确定度比（TUR）来验证公差。本标准提供了评估用于支持TUR计算的不确定性的指南。

1.1 This guide describes the techniques and apparatus required for the accuracy verification of industrial platinum resistance thermometers constructed in accordance with Specification E1137/E1137M and the evaluation of calibration uncertainties. The procedures described apply over the range of -200 °C to 650 °C. 1.2 This guide does not intend to describe procedures necessary for the calibration of platinum resistance thermometers used as calibration standards or Standard Platinum Resistance Thermometers. Consequently, calibration of these types of instruments is outside the scope of this guide. 1.3 Industrial platinum resistance thermometers are available in many styles and configurations. This guide does not purport to determine the suitability of any particular design, style, or configuration for calibration over a desired temperature range. 1.4 The evaluation of uncertainties is based upon current international practices as described in JCGM 100:2008 “Evaluation of measurement data—Guide to the expression of uncertainty in measurement” and ANSI/NCSL Z540.2-1997 “U.S. Guide to the Expression of Uncertainty in Measurement.” 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 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 This guide is intended to be used for verifying the resistance-temperature relationship of industrial platinum resistance thermometers that are intended to satisfy the requirements of Specification E1137/E1137M . It is intended to provide a consistent method for calibration and uncertainty evaluation while still allowing the user some flexibility in the choice of apparatus and instrumentation. It is understood that the limits of uncertainty obtained depend in large part upon the apparatus and instrumentation used. Therefore, since this guide is not prescriptive in approach, it provides detailed instruction in uncertainty evaluation to accommodate the variety of apparatus and instrumentation that may be employed. 5.2 This guide is intended primarily to satisfy applications requiring compliance to Specification E1137/E1137M . However, the techniques described may be appropriate for applications where more accurate calibrations are needed. 5.3 Many applications require tolerances to be verified using a minimum test uncertainty ratio (TUR). This standard provides guidelines for evaluating uncertainties used to support TUR calculations.