1.1 该试验方法包括通过挤出粘度计在高剪切速率下测量塑性溶胶和有机溶胶的粘度。 1.2 试验方法涵盖了低剪切速率下的表观粘度 D1824 . 1.3 以国际单位制表示的数值应视为标准。括号中的值仅供参考。 1.4 本标准并不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: 本标准和ISO 4575-2007涉及相同的主题，但技术内容不同。 1.5 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====== 5.1 分散树脂对任何给定应用的适用性取决于其粘度特性。 5.2 挤出粘度定义了塑性溶胶或有机溶胶在高剪切下的流动行为。这种粘度与混合、泵送、刀涂、辊涂和喷涂过程中遇到的条件有关。

1.1 This test method covers the measurement of plastisol and organosol viscosity at high shear rates by means of an extrusion viscometer. 1.2 Apparent viscosity at low shear rates is covered in Test Method D1824 . 1.3 The values stated in SI units are to be regarded as standard. The values in parentheses are given for information only. 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. Note 1: This standard and ISO 4575-2007 address the same subject matter, but differ in technical content. 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 The suitability of a dispersion resin for any given application is dependent upon its viscosity characteristics. 5.2 The extrusion viscosity defines the flow behavior of a plastisol or organosol under high shear. This viscosity relates to the conditions encountered in mixing, pumping, knife coating, roller coating, and spraying processes.