GSO ISO 4407:2015
流体的液压能力 流体污染 使用光学显微镜通过统计测定分子污染

Hydraulic fluid power -- Fluid contamination -- Determination of particulate contamination by the counting method using an optical microscope

GSO ISO 4407:2015 发布历史

GSO ISO 4407:2015由GSO 发布于 2015-09-03。

GSO ISO 4407:2015在国际标准分类中归属于: 23.100.60 过滤器、密封垫和流体杂质。

GSO ISO 4407:2015 流体的液压能力 流体污染 使用光学显微镜通过统计测定分子污染的最新版本是哪一版？

最新版本是 GSO ISO 4407:2015 。

GSO ISO 4407:2015的历代版本如下：

• 2015年 GSO ISO 4407:2015 流体的液压能力 流体污染 使用光学显微镜通过统计测定分子污染

This International Standard specifies methods for determining the level of particulate 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 µm can be sized and counted by this method, but the resolution and accuracy of the results will 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.

标准号

GSO ISO 4407:2015

发布

2015年

发布单位

GSO

当前最新

GSO ISO 4407:2015

 

 

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