Conductivity and air changes test in clean workshop
Conductivity and air changes test in clean workshop
The purpose of the conductivity test is to measure the electrical resistance between specified points of the floor coating, and the resistance between the floor coating and the building floor at important locations in the building; for continuous floor materials, in each clean room 5 pairs of test points in the workshop or each clean space...
Text label: Conductivity test in clean room, air change in clean room, clean room test
Test on electrical conductivity and air changes in clean room
The purpose of the conductivity test is to measure the electrical resistance between specified points of the floor coating, and the resistance between the floor coating and the building floor at important locations in the building; for continuous floor materials, in each clean room The test is carried out on 5 pairs of test points in the pharmaceutical cleanroom or each clean space, and the average value of the results is calculated, and the electrode spacing is 0.9m during the test. The measurement of the raised floor should be implemented in pairs of test points. The test content: the surface conductivity of the diagonal corner of a single floor plate, that is, the floor wax is insulating; the center of the floor plate to be tested and the support column; A corner of another floorboard of a floorboard; the center of the floorboard to be tested and the conductive coating covering the reinforced concrete main building floor. During the test, 5 pairs of test points among the 20 test points in each clean room can be measured, and the average value of the results can be calculated; during the measurement, one electrode is placed on the floor and connected to the ohmmeter, and the other end of the ohmmeter Connect to the nearest building post or exposed ground conductor.
The purpose of the number of air changes test is to measure the number of air exchanges in the clean room in hours. To measure the number of air changes per hour is to measure the total supply air or total return air volume and calculate the total volume of the clean room. The test steps are: determine whether the clean room is under positive pressure or negative pressure; if it is positive pressure, use an air volume hood to measure and record the air supply that has passed through the filter. When using an air volume hood with readings, connect the The size of the sealing device should be appropriate; if the negative pressure is used, measure the return and exhaust air volume through all the return air holes and the process exhaust device, and record it; measure the volume of the clean room space; calculate the number of air changes per hour. The conversion method of ACH is calculated according to the air supply volume, regardless of whether the room maintains positive pressure or negative pressure. The current practice is to use the total air volume for the positive pressure space, and the total return air and exhaust air volume for the negative pressure space, that is, the total air volume Plus unfiltered air leaks. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for dust-free workshops and clean workshops.
The purpose of electromagnetic interference testing is to determine the total amount of electromagnetic radiation emitted by a circuit. Magnetic fields around a power supply can affect sensitive equipment, especially those that use electron beams, such as electron microscopes and electron beam lithography equipment. Electron beams are Controlled and focused by magnets, the excess uncontrolled magnetic field degrades the performance of nearby instruments. Test steps: Determine the expected position of the electron beam of the equipment to be installed in the clean room. In order to conduct a certification investigation on the future position of the electron beam along the line, three-axis measurement is carried out at at least 4 positions. After the equipment is installed, the estimated path of the electron beam can be Measure at an alternative location at a distance of 0.5m; determine the radiation source with a reading of more than 1.0mG.
Many of us have heard about CUSTOM SOLUTION SERVICES and seen some of these units in operation in extraction machine, extraction machine and extraction machine spaces.
For many years, SUZHOU PHARMA MACHINERY CO.,LTD. has searched for and found a number of secrets to help you extraction machine. Go to PHARMA MACHINERY to learn about some of those secrets.
This can benefit PHARMA by helping it target those investors and consumers who are specifically interested in its type of product or service.
SUZHOU PHARMA MACHINERY CO.,LTD. has never conceded on the quality and the services of the products which provided to the customer.
We sells CUSTOM SOLUTION SERVICES and focus on operational procedure and manufacturing facilities extraction machine.