We can provide particle count measurements and certification, our complete testing and comprehensive reports will ensure your facility is meeting a certified specification.
Standards of cleanliness is measured by the amount of microscopic particles found in per metre cubic of air. The ISO 14644-1 standard sets up ISO classes ranging from 1 to 9; ISO Class 1 being the most stringent.
The standard of cleanliness to which data centres/computer rooms are recommended to be kept is ISO 14644-1 Class 8 or better. ISO Class 8 allows 832,000 1μm particles per cubic metre.
More and more hardware manufacturers are now insisting that the environments in which their equipment is located is kept to a high level of cleanliness, often including conditions to their OEM warranties.
The table below shows the Airborne Particulate Cleanliness Classes ISO 14644-1 1999.
On mobile devices, you can scroll across the table by swiping left and right as required.
| Class | Number of Particles per Cubic Meter by Micrometer Size | |||||
|---|---|---|---|---|---|---|
| 0.1µm | 0.2µm | 0.3µm | 0.5µm | 1µm | 5µm | |
| ISO 1 | 10 | 2 | ||||
| ISO 2 | 100 | 24 | 10 | 4 | ||
| ISO 3 | 1,000 | 237 | 102 | 35 | 8 | |
| ISO 4 | 10,000 | 2,370 | 1,020 | 352 | 83 | |
| ISO 5 | 100,000 | 23,700 | 10,200 | 3,520 | 832 | 29 |
| ISO 6 | 1,000,000 | 237,000 | 102,000 | 35,200 | 8,320 | 293 |
| ISO 7 | 352,000 | 83,200 | 2,930 | |||
| ISO 8 | 3,520,000 | 832,000 | 29,300 | |||
| ISO 9 | 35,200,000 | 8,320,000 | 293,000 | |||
We can also provide testing for the following: air flow velocity, temperature and humidity levels, lux and noise levels.
Schedule a specialist IT clean as part of your maintenance plan