What are the basic requirements of clean room?

What are the basic requirements of clean room?
1, clean workshop must maintain a certain relatively positive pressure, the pressure between the different levels of clean room not less than 5 pa; The pressure between clean room and clean workshop with not less than 10 pa, in order to prevent the low-level clean workshop air flow to advanced clean workshop;
2, should keep 18 ~ 26 ℃ temperature
According to international practice, dust-free purification level mainly according to the division per cubic meter of air particle diameter is greater than the standard number of particles to rules.
That is, that the so-called no dust, clean is not 100% but control on a very tiny amounts of units.
Of course accord with standard of dust particles in the standard relative to our common dust is small, but for optical structure, even just a bit of dust will be a very negative impact, so on the optical structure of production, clean is the inevitable requirement.
Accord with standard of dust particles in the standard, of course, relative to our common dust is small, but for optical structure, even just a bit of dust will be a very negative impact, so in the optical structure of production, clean is the inevitable requirement.
Per cubic meter will be less than 0.5 micron particle size below the number of dust control in 3500, to reach the international clean grade A standard.
And dust-free workshop is a certain space range of particles in the air, bacteria and other harmful air pollutants, and the indoor temperature, cleanliness, interior pressure, air velocity and air distribution, vibration and noise according to Ming, static control within the scope of a certain demand, and the special design of the room.
That is no matter how the outside air conditions change, its indoor all one can maintain the original set requirements of cleanliness, temperature and humidity and pressure performance characteristic.
Clean room to get a good clean effect, should not only focus on the reasonable air conditioning purification measures, but also the requirements process, construction and other professional to take corresponding measures, not only should have reasonable design, but also elaborate the compliance of construction installation, as well as the correct use of clean room maintenance and scientific management.