1.1本指南描述了冰点传感器和辅助设备的基本特征，以及在29至1085°C温度范围内实现冰点所需的技术。 1.2本指南不涉及详细设计和施工。 1.3本指南旨在描述良好实践，并建立实现冰点的统一程序。 1.4本指南强调原则。对原则的强调旨在帮助用户评估单元、改进单元使用技术以及建立特定应用程序的程序。 1.5在本指南中，用于准确校准温度计的冰点传感器仅限于浸入式- 类型温度计，当插入电池的凹孔中时，（1）仅指示孔等温区域的温度，（2）不会通过传热显著改变孔等温区域的温度。

1.1 This guide describes the essential features of freezing-point cells and auxiliary apparatus, and the techniques required to realize freezing points in the temperature range from 29 to 1085 °C. 1.2 Detailed design and construction are not addressed in this guide. 1.3 This guide is intended to describe good practice and establish uniform procedures for the realization of freezing points. 1.4 This guide emphasizes principles. The emphasis on principles is intended to aid the user in evaluating cells, in improving technique for using cells, and in establishing procedures for specific applications. 1.5 For the purposes of this guide, the use of freezing-point cells for the accurate calibration of thermometers is restricted to immersion-type thermometers that, when inserted into the reentrant well of the cell, (1) indicate the temperature only of the isothermal region of the well, and (2) do not significantly alter the temperature of the isothermal region of the well by heat transfer.