1.1 这些试验方法（A和B）测定了10至100范围内的多元醇的粘度 000 mPa·s（cP），温度为25°C。试验方法A是一种测定动态粘度的旋转程序。测试方法B是透明多元醇运动粘度的通用程序。（参见 注释1 .) 1.2 以国际单位制表示的数值应视为标准。由于目前的普遍使用，提供了其他等效单元。 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）。本标准的使用者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。 注1: 试验方法A相当于ISO 3219。试验方法B相当于ISO 3104。 1.4 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。 ====意义和用途====== 4.1 这些测试方法适用于研究或作为质量控制或规范测试。 4.2 粘度测量流体在没有湍流或其他力的情况下对均匀连续流动的阻力。

1.1 These test methods (A and B) determine the viscosity of polyols in the range from 10 to 100 000 mPa·s(cP) at 25°C. Test Method A is a rotational procedure for determining dynamic viscosity. Test Method B is a general procedure for kinematic viscosity of transparent polyols. (See Note 1 .) 1.2 The values stated in SI units are to be regarded as the standard. Other equivalent units are provided because of current common usage. 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. Note 1: Test Method A is equivalent to ISO 3219. Test Method B is equivalent to ISO 3104. 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 These test methods are suitable for research or as quality control or specification tests. 4.2 Viscosity measures the resistance of a fluid to uniformly continuous flow without turbulence or other forces.