1.1 本试验方法包括使用ISO毛细管流杯测定牛顿和近牛顿涂料以及相关涂料和产品的流动时间（粘度）。 注1: 如果液体为非牛顿流体，即剪切变稀或触变，则采用试验方法 D2196 应使用。 1.2 杯-孔组合（孔直径为3 mm、4 mm、5 mm或6 mm的ISO杯） 2. 其选择可提供20至100秒的流出时间和高达700 cSt（700 mm）的粘度 2. /s） 。最常用的杯子是带有4毫米孔的杯子。 1.3 本试验方法仅限于测试可以确定从流量杯孔口流出的流量断点的材料。 由于减速效应，对于流动时间超过100秒的材料，很难确定和再现这一点。 1.4 以国际单位制表示的数值应视为标准值。括号中给出的值仅供参考。 注2: 国际民用航空组织（ICAO）和国际海事组织（IMO）在其法规中包括一项类似的测试（ISO 2431），以确定危险粘性液体的粘度。然后根据粘度/闪点关系，使用粘度将这些液体置于危险包装组中。美国运输部允许使用这些法规在美国境内转运危险品。 S、 当前往国外目的地时。 1.5 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。 1.6 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====== 5.1 本试验方法适用于测定油漆和其他涂料的包装和应用粘度。它仅限于牛顿或接近牛顿的液体。 5.2 本试验方法可与ISO 2431类似，与闪点一起使用，以确定国际法规中粘性液体的危险分组。

1.1 This test method covers the determination of the flow time (viscosity) of Newtonian and near-Newtonian paints, and related coatings and products using ISO capillary flow cups. Note 1: If the liquid is non-Newtonian, that is shear-thinning or thixotropic, Test Methods D2196 should be used. 1.2 The cup-orifice combination (ISO cup with orifice diameter of 3 mm, 4 mm, 5 mm, or 6 mm) 2 is selected to provide an efflux time with the range of 20 to 100 s and viscosities up to 700 cSt (700 mm 2 /s). The most commonly used cup is the one with the 4-mm orifice. 1.3 This test method is limited to testing materials for which the breakpoint of the flow from the orifice of the flow cup can be determined with certainty. This point is difficult to determine and reproduce for materials with flow times in excess of 100 s due to slowing-down effects. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. Note 2: The International Civil Aviation Organization (ICAO) and the International Maritime Organization (IMO) include in their regulations a similar test (ISO 2431) to determine the viscosity of hazardous viscous liquids. The viscosity is then used to place these liquids in a hazard packaging group depending on their viscosity/flashpoint relationship. The U. S. Department of Transportation permits the use of these regulations for transhipment of hazardous material within the U.S. when bound for foreign destinations. 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. ====== Significance And Use ====== 5.1 This test method is useful for the determination of package and application viscosities of paints and other coatings. It is limited to Newtonian or near-Newtonian liquids. 5.2 This test method may be used similarly to ISO 2431 in conjunction with flashpoint to determine the hazard grouping of viscous liquids in international regulations.