This document introduces the different standards used by oil cleanliness testers, laser oil particle counters, and dust particle counters, including NAS1638, SAE749D, and ISO4406.
This document provides an overview of the Rainbow fluid particle counter, including particle size descriptions, characteristics, and the method for evaluating oil cleanliness. It lists the applicable standards such as NAS1638, SAE749D and ISO4406.
Detailed tables give particle count limits for various particle sizes, calibration methods using optical and electron microscopes, and maximum contamination limits for different ISO size codes. Contact information for the manufacturer is also included. This manual is written in Chinese.
| Minimum detectable particle size | 0.00012 µm |
|---|---|
| Maximum detectable particle size | 0.0048 µm |
| Cleanliness standards referenced | NAS1638, SAE749D, ISO4406 |
| Maximum contamination limit for 5 µm particles (particles/100 ml) | 5 000 |
The manual references NAS1638, SAE749D and ISO4406 as the standards for oil cleanliness evaluation.