Clean room engineering installation testing
Clean room engineering installation and testing
The basic test of a clean room is to measure the various factors that enable the successful control of particulate matter. These tests are used to evaluate the overall performance of the clean room and help to identify its current cleanliness level. Generally, the basic test should be based on The most beneficial sequential implementation of the certified projects;...
Text label: clean room engineering, clean room installation, clean room inspection
Clean room engineering installation testing
The basic test of a clean room is to measure the various factors that enable the successful control of particulate matter. These tests are used to evaluate the overall performance of the clean room and help to identify its current cleanliness level. Generally, the basic test should be based on The most beneficial sequence of certified items is implemented; basic tests include wind speed and uniformity test, air volume and uniformity test, high-efficiency filter installation leak detection, suspended particle count cleanliness classification test, and indoor pressure test. Optional tests are aimed at clean room particulate matter, air flow and auxiliary systems for users to choose, including airflow parallelism test, self-cleaning time test, illumination and uniformity test, sound level test, vibration level test, temperature and humidity uniformity test , electrostatic test, conductivity test, electromagnetic interference test, air change test, filter test bench scanning leak detection.
It is best to use an air volume hood for the air volume measurement of each filter. An air volume hood with a flow meter is required, and the air volume hood is tightly pressed on the filter frame to prevent air leakage; the air volume hood should be large enough to capture Total air flow through the filter under test; measure and record the air volume per filter in liters per second or cubic feet per minute; the purpose of the filter face velocity test is to document the average flow through the filter in a non-unidirectional flow pharma clean room Wind speed and its uniformity. For non-unidirectional flow cleanrooms, it is best to measure the air volume and take readings at a distance of more than 150mm from the filter surface, which is more accurate for calculating air velocity. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and purification projects.
The purpose of the high efficiency filter system integrity test is to ensure and confirm that the high efficiency filter system is installed correctly. The main method is to verify that there is no bypass leakage, the filter itself has no defects, and there is no pinhole leakage; the test method is to test the high efficiency filter. The aerosol is introduced on the upstream side and immediately scans the filter downwind to the toilet and support frame to detect the filter media and frame seal for small pinhole damage, the filter frame and gasket for bypass leakage, and filter Check whether the frame of the device itself has leaks; for the ceiling static pressure box, it may also be necessary to scan the fire sprinklers, pipes, pipes, etc., and ceiling joints at the ceiling penetrations. The purpose of the total aerosol leakage method is to use this method to verify the integrity of the filter system when it is not possible to access the filter system downwind. When the photometric method or particle counter method is used, significant leakage can be in the range of 0.005%- Between 0.03%; the test is to introduce the detection aerosol upstream of the filter installed in the air duct and have a certain distance from the clean clean room modular, and then measure the air entering the room from the air duct and the upstream concentration angle to determine the filter system. Total leak rate.
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