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Wear Particle Atlas CD-ROM Features Index

Part 3, Contamination Level and ISO Cleanliness
Wear Particle Atlas CD-ROM

The Contamination Level and ISO Cleanliness feature is one of four main features of the Wear Particle Atlas CD-ROM. It provides a useful reference to estimate lubricant cleanliness. The cleanliness reference in Atlas consists of 10 contamination levels corresponding to the sequential ISO Cleanliness levels from ISO 13/10 up to ISO 24/21. An example of ISO cleanliness and a corresponding contaminant level page is provided below:

Contamination Levels and Corresponding ISO Cleanliness
Contamination Level	ISO Cleanliness
Level 1	ISO 13/10
Level 2	ISO 15/12
Level 3	ISO 16/13
Level 4	ISO 17/14
Level 5	ISO 18/15
Level 6	ISO 19/16
Level 7	ISO 20/17
Level 8	ISO 21/18
Level 9	ISO 22/10
Level 10	ISO 24/21

Each level contains 4 representative solid particle images grabbed from different areas of the filtergram with varied magnifications. This component can be used to correlate machine wear with lubricant dust contamination and to estimate the contamination levels of some very dirty, very viscous, or water-contaminated oil samples. These types of samples are usually unavailable or inconvenient for analysis by automatic particle counting.

Thank you for visiting the "Oil Cleanliness Determinations" feature of the Wear Particle Atlas CD-ROM. Additional features can be reviewed by returning to the Wear Particle Atlas CD-ROM Features Index.