1.1 本规程描述了与温度测量装置一起使用的两个程序。描述了用于确定热传感器，特别是RTD或类似温度传感器的最小浸入深度的方法。包括一个持续制备参考槽的程序，用于监测热传感器（如玻璃液位计或数字接触温度计）的测量漂移。 1.2 本实践侧重于实验室中的温度测量漂移。如果用户需要更高的测量精度，那么他们应该在实践中遵循说明 E563 . 1.3 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。 1.4 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。 1.5 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 本规程为ASTM委员会D02标准的用户提供了一种监测玻璃液体温度计（LiG）和数字接触温度计（DCT）感测温度漂移的方法。数字接触温度计有时被称为便携式电子温度计（PET）或简称为数字温度计。 5.2 本规程不适用于确定温度测量装置的精度或校准，因为冰浴温度的误差可能大于0.02°C。为了获得更高的精度，用户应使用本规程 E563 准备冰浴。 5.3 冰点是测温的常见实用工业参考点。冰点的实现相对简单，并提供了一个现成的自然固定点参考温度。 5.4 本规程仅检查单一温度下的测量漂移。它不会检测到测量响应随温度变化的变化。温度测量装置应按设定的间隔重新校准。有关建议，请参阅设备供应商。 5.5 本规程提供了一种使用冰浴确定温度计传感探头最小浸入深度的技术。 当温差与所述条件显著不同时，本规程确定的最小浸入深度可能会发生变化。较大的差异可能会增加最小浸入深度。

1.1 This practice describes two procedures for use with temperature measurement devices. Methodology is described for determining minimum immersion depth for thermal sensors, in particular RTDs or similar temperature sensors. Included is a procedure for consistently preparing a reference bath for the purpose of monitoring measurement drift of thermal sensors such as liquid-in-glass or digital contact thermometers. 1.2 This practice focuses on temperature measurement drift in a laboratory. If the user requires greater measurement accuracy, then they should follow the instructions in Practice E563 . 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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 practice provides a means for the users of ASTM Committee D02 standards to monitor the drift in sensed temperature of liquid-in-glass thermometer (LiG), and digital contact thermometers (DCT). Digital contact thermometers are sometimes referred to as portable electronic thermometers (PET) or simply digital thermometers. 5.2 This practice is not suitable for determining the accuracy or calibration of a temperature-measuring device as the error in the ice bath temperature can be greater than 0.02 °C. For greater accuracy, the user should use Practice E563 to prepare the ice bath. 5.3 The ice point is a common practical industrial reference point of thermometry. The ice point is relatively simple to realize and provides a readily available natural fixed-point reference temperature. 5.4 This practice only checks the measurement drift at a single temperature. It will not detect a change in measurement response with change in temperature. Temperature-measuring devices should be recalibrated at set intervals. See device supplier for recommendations. 5.5 This practice provides a technique to determine minimum immersion depth of the sensing probe of the thermometer using an ice bath. The minimum immersion depth determined by this practice may change when the differential temperature differs significantly from the conditions described. A greater differential will likely increase the minimum immersion depth.