液压传动流体污染采用光学显微镜计数测定颗粒污染度替代BS 5540-8: 1991

BS ISO 4407-2002

液压传动流体污染采用光学显微镜计数测定颗粒污染度替代BS 5540-8: 1991

Fluidtechnik. Verschmutzung der Druckfluessigkeit. Bestimmung der festen Verschmutzung mit dem mikroskopischen Zaehlverfahren Hydraulic Fluid Power-Fluid Contamination-Determination of Particulate Contamination by the Counting Method Using an Optical Microscope Transmissions hydrauliques. Pollution des fluides. Determination de la pollution particulaire par comptage au microscope optique Supersedes BS 5540-8:1991;

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适用范围：This International Standard specifies methods for determining the level of participate contamination in liquids used in hydraulic systems by counting the number of particles deposited on the surface of a membrane filter using an optical microscope. It includes particle counting by two manual methods and image analysis, using either transmitted or incident lighting systems. Particle sizes ≥ 2 μn can be sized and counted by this method, but the resolution and accuracy of the results wiB depend upon the optical system used and the capabilities of the operator. All hydraulic fluids with a wide range of contamination levels can be analysed according to this International Standard. However, the counting uncertainty at the larger particle sizes increases if the volume filtered is reduced to allow smaller sized particles to be counted, where a fine precipitate or a high particle concentration is present.

实施日期： 2002-05-21

中标分类号： J20 - 机械 - 液压与气动装置

ICS分类号： 23.100.60 - 流体系统和通用部件

标准组织： BS - 英国标准学会标准

全文来源： WF

中文关键词：计数液压传动污染颗粒密度液压传动系统高压液体液压装置液压液液压系统流体技术定义测定试验显微术

语种：汉语

页数： 24

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液压传动 流体污染 采用光学显微镜计数测定颗粒污染度 替代BS 5540-8: 1991

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液压传动流体污染采用光学显微镜计数测定颗粒污染度替代BS 5540-8: 1991