Iso 4406 table
![iso 4406 table iso 4406 table](https://media.noria.com/sites/archive_images/Backup_200005_ISOTab1.gif)
This standard classifies the cleanliness of oil and provides a basis to define acceptable solids contamination.
Iso 4406 table iso#
The ESM detects many more of the smaller particles than the optical methods.Ĭounting standard ISO 4406 -1999 is used internationally to rate solids contamination of oils. Each procedure produces slightly different particle counts due to their varying sensitivity in detecting particles of different sizes. Solid particle counts in oil can be done with optical equipment (microscope, light extinction), with an electron-scanning microscope (ESM) or by sifting through screens. On the other hand if the cost of replacement equipment is cheap it is unlikely to be justifiable to spend money on oil filtration. Increasing the equipment life and the period between maintenance up to ten times normal would be highly profitable in both cases. This would be the case where expensive equipment was used and the cost of maintenance was high or where the equipment was costly but not highly profitable to operate. It is clear that there is great benefit to be gained in having clean oil and that it may be well worth spending a lot of money to achieve it. British hydraulics research indicates that if solids contamination with particles larger than 5 microns (0.005 mm or 0.0002”) is reduced from the range of 5,000 – 10,000 particles per milliliter of oil to 160 – 320 particles, the machine life is increased 5 times. Timken, the bearing manufacturer, reports that reducing water levels from 100 ppm (parts per million) to 25 ppm increases bearing life 2 times. Root Cause Analysis and the 8D Corrective Action Process courseĬlean, dry oil can extend equipment life between failure up to 8 – 10 times the normal operating life.An Introduction to Reliability Engineering.Reliability Analysis Methods online course.14 Ways to Acquire Reliability Engineering Knowledge.Reliability Engineering Management DRAFT.Innovative Thinking in Reliability and Durability.Equipment Risk and Reliability in Downhole Applications.Musings on Reliability and Maintenance Topics.
![iso 4406 table iso 4406 table](http://pirtekasia.com/wp-content/uploads/table_2.png)
![iso 4406 table iso 4406 table](https://media.noria.com/sites/archive_images/articles_200801_Pg18.gif)
Rooted in Reliability: The Plant Performance Podcast.