What are the test standards for the service life of vents?

1. Physical performance test
Tensile strength and elongation at break: According to relevant standards, such as ISO 527, the membrane is subjected to tensile tests to observe its strength and deformation under stress.
Tear strength: According to standard methods, such as ISO 34-1, the tear resistance of the membrane is measured.
2. Waterproof performance test
Hydrostatic pressure test: According to standards such as ISO 811, gradually increasing water pressure is applied to the membrane to observe at what pressure water seepage occurs.
Water splashing test: Simulate rain impact to check the waterproof effect of the membrane surface.
3. Breathability test
According to standards such as ASTM E96, the water vapor permeability of the membrane is measured to evaluate its breathability.
4. Weather resistance test
Heat aging test: The membrane is placed in a high temperature environment for a certain period of time, such as according to ISO 188.
Ultraviolet aging test: Use ultraviolet lamps to simulate sunlight exposure, according to standards such as ISO 4892.
5. Chemical stability test
Acid and alkali corrosion test: Soak the membrane in solutions of different pH values ​​and observe changes in its performance.
6. Appearance inspection
Regularly observe the membrane's color changes, surface roughness, cracks and other appearance defects.