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Standard Test Methods for Humidity Calibration (or Conformation) of Humidity Generators for Use with Thermogravimetric Analyzers 热重分析仪用湿度发生器湿度校准(或构象)的标准试验方法
发布日期: 2020-03-15
1.1 这些试验方法描述了与热重分析仪和其他热分析仪器一起使用的湿度发生器的湿度校准(或一致性)。覆盖的湿度范围为5%相对湿度(%RH)到95% % 相对湿度,温度范围为0°C至80°C。 1.2 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。 1.3 本标准并非旨在解决与其使用相关的所有安全问题(如有)。 本标准的用户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(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 这些试验方法校准或证明由湿度发生器在固定温度下产生的净化气体中的湿度水平的一致性。质量计划可能需要此类校准或符合性证明。 5.2 一致性表明,增湿吹扫气体在某些既定限值内。 5.3 校准提供了一个偏移值和/或斜率值,可用于确定仪器的相对湿度标度。
1.1 These test methods describe the humidity calibration (or conformance) of humidity generators for use with thermogravimetric analyzers and other thermal analysis apparatus. The humidity range covered is 5 % relative humidity (% RH) to 95 % RH and the temperature range is 0 °C to 80 °C. 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 These test methods calibrate or demonstrate conformity of the humidity level in a purge gas generated by a humidity generator at a fixed temperature. Such calibration or demonstration of conformity may be required by quality initiatives. 5.2 Conformance demonstrates that the humidified purge gas is within some established limits. 5.3 Calibration provides an offset and or slope value that may be used for establishing the relative humidity scale of the apparatus.
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归口单位: E37.10
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