Troubleshooting Guide for Air Permeability Testing Issues

 

1. Test equipment:
Make sure that the test equipment works normally and meets the requirements of relevant standards. Check whether the pressure sensor, flow meter, temperature and humidity control and other components are in normal operation. Perform calibration or maintenance operations if required.

 

2. Sample preparation:
Pay attention to proper sample preparation and handling. Make sure there are no damage or nicks in the sample area that could affect the test results. For textile samples, ensure uniformity of the sampling area and avoid wrinkles or wrinkles.

3. Sealing:
Make sure the test system has good sealing to prevent air leakage. Check all connections, joints and seals to make sure they are tight and not visibly damaged.

 

4. Temperature and humidity control:
During the test, maintain constant temperature and humidity conditions. Ensure that the laboratory environment is consistent with the standard requirements, and avoid unnecessary changes from affecting the test results.

 

5. Test process:
Follow the test steps specified in the standard. Pay attention to the operator's technical operation requirements, such as correct operation in sample installation, start-up testing and data recording.

 

6. Data Analysis:
Carefully analyze and interpret the test results. Make sure the porosity values are calculated correctly and compared to standard or code requirements.

 

If you encounter problems in the air permeability test, first check whether there are any abnormalities in the above factors. If the problem persists, further troubleshooting or professional technical support may be required to ensure the accuracy and reliability of the test.