Clean room level standards are as follows.
1, level 1 purification level
This level of cleanliness is mainly used in the microelectronics industry, and this is the highest level of purification requirements of the industry. This is due to the integrated circuit is very sensitive, even 1 micron dust, will have a great impact on the product, such as affecting the stability of the product, short circuit, reduce service life. Liquid crystal, fiber optic production also need this purification level.
2, 10 purification level
This level is now mainly used in the semiconductor industry with a bandwidth of less than 2 microns. Its air purification level is second only to level 1, also belongs to the higher level. China's semiconductor industry in the non-stop development, the future may be for the purification level of the requirements will be higher.
3, 100 purification level
is the most commonly used level of purification, this level of dust and airborne bacteria concentration have clear requirements. Mainly used in the pharmaceutical industry, sterile manufacturing, medical science experiments in the laboratory animal breeding environment, genetic engineering experiments. As well as surgery, transplantation surgery and other operating room environment, bacteria-sensitive patient isolation environment, burn wards, etc. are generally in the 100 level purification project requirements.
In addition, the 100-level purification project can also be used for integrated circuit production. 1000-level purification level: generally only the dust concentration requirements. Mainly used for high-quality production of optical devices, micro-axis, bearing test and assembly of aircraft gyroscopes and so on.
4, 10000 level purification level
Generally used for hydraulic equipment or pneumatic equipment production, in some cases also used for food and beverage production.
5, 100000 level purification level
This level can be used for a lot of lower requirements of the purification project, can be used in many industrial sectors of the production sector, food and beverages, the pharmaceutical industry, parts assembly is often used to purify the level of this level.
1,000,000 level purification level: this level is the lowest, said the number of dust particles per cubic meter of air with a diameter greater than or equal to 0.5um less than one million, can be used for many of the cleanliness requirements are not very high industry. Such as printing plants, packaging plants and so on.