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What are the ten thousand clean room standards and testing standards

日期:2020-07-09 16:04
浏览次数:19
摘要:Class 10,000 cleanroom standards (defined by the number of dust particles and the number of microorganisms): Maximum allowable number of dust particles (per cubic meter): The number of particles with a diameter of 0.5 μm or more shall not exceed 350,000, and the number of particles with a diameter of 5 μm or more shall not exceed 2,000; Maximum allowable number of microorganisms: The number of floating bacteria should not exceed 100 per cubic met..
Class 10,000 cleanroom standards (defined by the number of dust particles and the number of microorganisms):

 

Maximum allowable number of dust particles (per cubic meter):

 

The number of particles with a diameter of 0.5 μm or more shall not exceed 350,000, and the number of particles with a diameter of 5 μm or more shall not exceed 2,000;

 

Maximum allowable number of microorganisms:

 

The number of floating bacteria should not exceed 100 per cubic meter:

 

The number of settled bacteria should not exceed 3 per dish.

 

Introduce relevant 10,000-class clean room testing standards, 100-level clean room testing standards, 1000-level clean room testing standards, and 100,000-class clean room testing standards.

 

Class 10,000 clean room testing standards mainly include:

 

1. Airflow velocity and its uniformity detection. This test is the premise of other tests for the clean room effect. The purpose of this test is to clarify the average airflow and uniformity of the unidirectional flow clean room working area. Sex.

 

2. Air volume detection in the system or room.

 

3. Detection of indoor cleanliness. Cleanliness is measured to determine the level of cleanliness that can be achieved in a clean environment and can be detected using particle counters.

 

4. Detection of self-cleaning time. By determining the self-cleaning time, the ability to restore its original cleanliness when contamination occurs inside the clean room is ascertained.

 

5. Airflow pattern detection.

 

6. Detection of noise.

 

7. Detection of illuminance. The purpose of the illuminance test is to determine the illuminance level and uniformity of the illumination in the clean room.

 

8. Detection of vibration. The purpose of the vibration test is to determine the amplitude of the vibrations indicated by the clean room.

 

9. Detection of temperature and humidity. The purpose of temperature and humidity detection is to adjust the temperature and humidity to a certain limit. The content includes detecting the air supply temperature of the clean room, detecting the air temperature of the representative measuring point, detecting the air temperature at the center of the clean room, detecting the air level at the sensitive component, detecting the relative temperature of the indoor air, and detecting the return air temperature. .

 

10. Detection of total air volume and fresh air volume.