富士康旗下优尔鸿信汽车零部件清洁度测试洁净度测试

清洁度测试标准
1 ISO16232-1:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 1: Vocabulary ,
2 ISO16232-2:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 2: Method of extraction ofcontaminants by agitation
3 ISO16232-3:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 3: Method of extraction of contaminants by pressure rinsing
4 ISO16232-4:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 4: Method of extraction of contaminants by ultrasonic techniques
5 ISO16232-5:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 5: Method of extraction of contaminants on functional test bench
6 ISO16232-6:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 6: Particle mass determination by gravimetric analysis
7 ISO16232-7:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 7: Particle sizing and counting by microscopic analysis
8 ISO16232-8:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 8: Particle nature determination by microscopic analysis
9 ISO16232-9:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 9: Particle sizing and counting by automatic light extinction particle counter
10 ISO16232-10:2007 Road vehicles —Cleanliness of components of fluid circuits —
Part 10: Expression of results
11 VDA19.1 汽车工业质量管理--技术清洁度检测 部份

称重法颗粒分析
通过称重，获取颗粒的总质量是相当简单的。也就是只需称出过滤膜在过滤前和过滤后的重量，两者之间的差异就等于颗粒的总质量。为了得到正确的结果，对过滤膜进行前处理是非常重要的。通常的将膜浸入萃取液中，然后在烘箱中干燥，后储存在预先设置好时间的干燥器中。请注意，在技术上是很难去量化颗粒质量小于3mg的颗粒。因此要求一个的天平和一间环境条件恒定的房间。如果重量要求严格，则建议一大批样品仪器测试。

据VDA-19的描述，弱化/避开小颗粒测试时近来的发展趋势，对于许多实际案例，5-50μm是没有相关性的，并且对那么小的颗粒进行分析甚至是一种工作的阻碍，因为对那么小的颗粒进行分析工作量很大。因此，现在已将颗粒大于50μm的颗粒分析作为标准化。而只有少数的特殊案例需要分析颗粒小于50μm的。