ISO 26422-2011 石油和相关产品.含聚合物的润滑油切变稳定性测定.利用圆锥滚柱轴承的方法.pdf

标准号：ISO 26422-2011
实施状态：作废
中文名称：石油和相关产品.含聚合物的润滑油切变稳定性测定.利用圆锥滚柱轴承的方法
英文名称：Petroleum and related products - Determination of shear stability of lubricating oils containing polymers - Method using a tapered roller bearing
发布日期：2011-03-15
实施日期：2011-03-15
被替代标准：ISO 26422-2014
代替标准：ISO/FDIS 26422-2010
采用标准：DIN 51350-6-1996,MOD
起草单位：ISO/TC 28
标准简介：WARNING — The use of this International Standard may involve hazardous materials, operations and
equipment. This International Standard does not purport to address all of the safety problems
associated with its use. It is the responsibility of the user of this International Standard to establish
appropriate safety and health practices and to determine the applicability of regulatory limitations
prior to use.
This International Standard specifies a method of determining the shear stability of polymer-containing
lubricating oils, including pressure fluids, by the four-ball tester as specified in ISO 20623, but using a tapered
roller bearing. The test results allow prediction of the in-service permanent viscosity loss.
NOTE Other International Standards exist which evaluate viscosity loss of polymer-containing oils. The method
specified in this International Standard subjects fluids to a higher shear rate than, for example, the diesel injector nozzle
shear test in ISO 20844. It is particularly appropriate for lubricants being used in high shear applications, such as
components with gears and roller bearings. In such applications, the shear rate in the ISO 20844 test method can be too
low to generate a realistic permanent shear of the fluid.
文件格式：PDF
文件大小：475.85KB
文件页数：14
（以上信息更新时间为：2019-11-22）



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