The standard of 10,000-level dust-free workshop mainly includes the following aspects:
The maximum allowable number of dust particles: greater than or equal to 0 per cubic meter of airThe number of particles of 5 microns must not exceed 350,000, and the number of particles greater than or equal to 5 microns must not exceed 2,000.
The maximum allowable number of microorganisms: the number of planktonic bacteria shall not exceed 100 per cubic meter;The number of Shenlong bacteria should not exceed 3 per Petri dish.
Differential pressure: The pressure difference between the clean rooms of the same cleanliness level is consistent, and the pressure difference between adjacent cleanrooms of different cleanliness levels should be 5Pa, and the pressure difference between clean rooms and non-clean rooms should be 10Pa.
Temperature and humidity: When the 10,000-level dust-free workshop has no special requirements for temperature and humidity, it is advisable to wear clean work clothes without a comfortable feeling, and the temperature is generally controlled at 20 22 in winter, 24 26 in summer, and fluctuation 2. The humidity of the clean room is controlled at 30-50% in winter and 50-70% in summer.
Power distribution: The general illumination value of the main production room in the clean room (area) should be 300lx;The illuminance value of auxiliary studios, personnel purification and material purification rooms, airlock rooms, corridors, etc. should be 200 300lx.
Noise control: During the dynamic test, the noise level in the class 10,000 clean room should not exceed 70 dB A. During the static test, the noise level of the 10,000-level turbulent clean room should not be greater than 60 dB A.
Fresh air volume: The fresh air volume of the 10,000-level dust-free workshop should not be less than 10%-30% of the total air supply volume.
Airflow organization: The airflow organization should be reasonably arranged according to the production requirements of the product and the characteristics of the air filter. The air supply outlet should be set on the upper side of the clean work area, and the return air outlet should be set on the lower side of the work area and at a certain height from the ground.
Self-cleaning time: The self-cleaning time of the 10,000-level dust-free workshop should not be greater than 20min.
Air filtration system: The air filtration system is an important part of the 10,000-level dust-free workshop, which should be reasonably designed and configured. Generally, it is divided into three filtration levels: primary, medium and high-efficiency, among which the high-efficiency filter should be selected according to the effective size of the air supply surface.
Ventilation system: The ventilation system should meet the process requirements and environmental requirements of the 10,000-level dust-free workshop, including air supply, return air, exhaust air and fresh air systems. It should be reasonably designed and configured according to factors such as the layout of the workshop, process requirements and environmental requirements.
Lighting system: The lighting system should meet the requirements of relevant standards and specifications, and meet the process requirements and environmental requirements of the workshop. The illuminance value of the workshop should not be less than 300lx, and the uniformity and stability of the lighting system should be considered.
Cleanroom differential pressure control: There should be sufficient differential pressure between clean rooms and non-clean rooms, as well as between adjacent clean rooms of different cleanliness levels, to prevent polluted air from entering the cleanroom. At the same time, differential pressure sensors and adjustment devices should be set up to ensure the stability of differential pressure and meet the requirements.
Personnel management: The staff of the 10,000-level dust-free workshop should carry out strict training and management, abide by the regulations and operating procedures of the workshop, and shall not carry polluting substances into the workshop.
Environmental sanitation: The environmental sanitation of the 10,000-level dust-free workshop should meet the requirements of relevant standards and specifications, including air quality, microclimate, noise, illumination, etc. At the same time, regular cleaning and maintenance should be carried out to ensure the hygiene and safety of the workshop.
In general, the standard of Class 10,000 dust-free workshop is a complex and strict requirement that needs to be considered and implemented from many aspects. Only workshops that meet these standards can provide a good environment for the production of products.