Third party cleanroom qualified testing agency generally requires a comprehensive clean related detection capabilities, for drug GMP workshop, electronic clean room, food and drug packaging materials workshop, workshop, hospital medical sterile clean operation room, biological laboratory, general health food GMP workshop, cosmetics / disinfection products workshop, animal laboratory, veterinary medicine GMP workshop, workshop and other drinking bottled water, clean room, clean workshop for third party testing, consulting and other professional technical service.
The detection range includes: clean room clean room environment rating, project acceptance testing, including food, health care products, cosmetics, bottled water, milk production workshop, electronic products production workshop, GMP workshop, hospital operation room, animal laboratory, biological safety laboratory, biological safety cabinet, clean bench, clean room, sterile workshop etc..
Test items: wind speed, air volume, ventilation rate, temperature and humidity, pressure difference, suspended particles, planktonic bacteria, settling bacteria, noise, illuminance, etc.. Specific reference to clean room testing standards
1, wind speed, air volume, ventilation frequency
The cleanliness of the clean room and the clean area is mainly achieved by feeding sufficient amount of clean air to displace and dilute the particulate pollutants produced in the room. Therefore, it is necessary to determine the air supply rate, average wind speed, air supply uniformity, air flow direction and flow pattern of clean rooms or clean facilities.
One way flow mainly relies on the clean airflow to push and exhaust the polluted air in the indoor and the area to maintain the cleanliness in the indoor and the district. Therefore, the wind speed and uniformity of air supply section are important parameters affecting cleanliness. Higher and more uniform section wind speed can eliminate pollutants produced by indoor process more quickly and effectively, so they are the main items of concern.
The non unidirectional flow mainly depends on the incoming clean air to dilute and dilute the pollutants in the interior and area to maintain cleanliness. Therefore, the greater the number of air changes, the reasonable airflow pattern, the more pronounced the dilution effect, and the cleanliness will be improved accordingly. So the non air volume and the corresponding number of single-phase flow clean room, clean area, air is mainly focus on the test project.
In order to obtain repeatable readings, the time averaged values of wind speed at each point are recorded.
Number: according to the total volume of clean room in the room volume obtained by
2, temperature and humidity
Measurement of temperature and humidity in clean rooms or cleaning facilities is usually divided into two grades: General test and comprehensive test. The first grade is suitable for completion acceptance test in the empty state to the comprehensive performance test of second grades applicable to static or dynamic. Such tests are applicable to occasions where the temperature and humidity performance requirements are stringent.
This test is carried out after air flow uniformity test and air conditioning system adjustment. During this test, the air-conditioning system has been fully operational and the situation has stabilized. At least one humidity sensor is set in each humidity control zone and sufficient stability time is given to the sensor. The measurements shall be appropriate for practical purposes and shall not be less than 5 minutes after the sensor is stabilized before starting the measurement.
3, pressure difference
The purpose of this test is to verify the ability to maintain the specified pressure difference between the completed facilities and the surrounding environment and within the facilities. This test applies to all 3 occupancy states. This test will take place on a regular basis.
Differential pressure testing should be in all the doors are closed, from high pressure to low pressure, the plane layout and the outside farthest inner room, turn out testing; clean room with holes communicated with the different levels of the adjacent (District), the hole should have reasonable air flow and so on.
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