Overview
A permeation cup is an experimental tool used to measure the permeation performance of materials, usually consisting of a transparent cup-shaped container and permeation holes at the bottom. It is often used for measurement of the permeation ability of liquids, gases or Miscellaneous solutes in materials, such as in the field of building materials to evaluate the moisture permeation performance of materials such as concrete, bricks, or in the field of agriculture to measure the moisture permeation ability of soils.
Features
1. Suitable for self-supporting coatings and non-self-supporting coatings.
2. Pay attention to moisture permeability in high humidity environment, wet cup method is the main test method.
3. Cheers can also be used in different programs or environments.
4. The test area is 50cm ².
Principle
When using a permeable cup, the material to be tested is placed in the cup and injected with a certain pressure or immersion liquid. Over time, the permeation of the liquid is observed, and the permeation performance of the material is evaluated by measuring the change of the permeation rate or liquid level of the liquid. The same method can measure the permeability of the film to Miscellaneous substrates in gaseous state by reducing or increasing the weight of the contents of the cup within a specific time.
Applications
Building materials, agriculture
Standards
GB/T 17146、JG/T 309、JG/T 485、ISO 7783、ASTM D 1653
Steps
1. Put the material to be tested into the cup.
2. Inject a certain pressure or soak the liquid.
3. Observe the permeability of the liquid.
4. Measurement of liquid penetration rate or liquid level change.
Notice
• Suitable for self-supporting coatings and non-self-supporting coatings.
• The wet cup method is mainly used in high humidity environments.
• Cheers can be used in different programs or environments.
