1.1 本试验方法描述了在–150°C至1000°C的温度范围内，使用合适的参考材料的热膨胀对热机械分析仪（TMA）的长度变化（偏转）测量或热膨胀进行校准。 1.2 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.3 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。 1.4 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 性能验证或校准对于准确确定定量尺寸变化测量至关重要。 5.2 该测试方法可用于仪器性能验证、法规遵从性、研发和质量保证目的。

1.1 This test method describes calibration of the length change (deflection) measurement or thermal expansion of thermomechanical analyzers (TMAs) within the temperature range from –150 °C to 1000 °C using the thermal expansion of a suitable reference material. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 1.4 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 Performance verification or calibration is essential to the accurate determination of quantitative dimension change measurements. 5.2 This test method may be used for instrument performance validation, regulatory compliance, research and development and quality assurance purposes.