1.1 本规范描述了测量红细胞沉降率（ESR）的试管的要求。ESR是红细胞在稀释的抗凝血人体血液中的悬浮稳定性。 1.1.1 严格来说，使用“比率”一词是不正确的。该测试测量指定时间后红细胞的沉降量。 1.2 试管与特殊的支架一起使用，以确保它们在测试期间保持在垂直位置。 1.3 本规范包括许多尺寸要求，这些要求在很大程度上与英国标准协会、德国标准协会、国际血液学标准化委员会和国家临床实验室标准委员会关于韦斯特格伦管的出版物一致。使用本说明书中描述的管的临床程序称为“Westergren方法”。” 1.4 以SI单位表示的值将被视为标准值。本标准不包括其他计量单位。 1.5 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.6 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。

1.1 This specification describes requirements for a tube that measures the erythrocyte sedimentation rate (ESR). ESR is the suspension stability of red cells in diluted, anti-coagulated human blood. 1.1.1 The use of the term “rate” is, strictly speaking, not correct. The test measures the amount of settling of red cells after a specified time. 1.2 The tubes are used together with a special rack to ensure they remain in a vertical position during the test. 1.3 This specification includes many dimensional requirements that are, for the most part, in agreement with the British Standards Institution, German Standards Institute, International Committee for Standardization in Haematology, and the National Committee for Clinical Laboratory Standards publications on Westergren tubes. The clinical procedure using the tube described in this specification is known as the “Westergren Method.” 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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.