1.1 本试验方法包括目视和尺寸检查，以及规范中规定的用于验证玻璃液体温度计的刻度精度试验 E1 和 E2251 . 然而，这些程序可能适用于其他玻璃管液体温度计。 2. 注1: NIST SP250-23的使用 2. 建议使用。 1.2 警告- 许多监管机构已将汞指定为一种危险物质，可导致严重的医疗问题。汞或其蒸汽已被证明对健康有害，并对材料具有腐蚀性。处理汞和含汞产品时要小心。有关更多信息，请参阅适用的产品安全数据表（SDS）。销售汞或汞- 当地或国家法律禁止含有产品或两者。用户必须确定其所在地销售的合法性。 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====== 4.1 本标准中描述的测试方法将确保规范中列出的温度计 E1 和 E2251 将指示所列最大刻度误差范围内的温度，与仪器兼容，并用于其设计目的。 4.2 未通过目视和尺寸检查测试的温度计可能会给出错误的高温或低温读数，或者可能不适合ASTM方法中使用的现有设备。为了准确测量温度，应按照本试验方法中的说明验证温度计的刻度读数。

1.1 This test method covers visual and dimensional inspection and test for scale accuracy to be used in the verification of liquid-in-glass thermometers as specified in Specifications E1 and E2251 . However, these procedures may be applied to other liquid-in-glass thermometers. 2 Note 1: The use of NIST SP250-23 2 is recommended. 1.2 Warning— Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location. 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 ====== 4.1 The test method described in this standard will ensure that the thermometers listed in Specifications E1 and E2251 will indicate temperatures within the maximum scale errors listed, be compatible with the apparatus, and serve the purpose for which they were designed. 4.2 Thermometers that do not pass the visual and dimensional inspection tests may give erroneously high or low temperature readings, or may not fit into existing equipment used in ASTM methods. For accurate temperature measurements the scale readings of the thermometer should be verified as described in this test method.