Porosity Tester verification & maintenance

Air permeability is one of the important indicators of paper quality, which directly reflects the size of the porosity inside the paper. The tighter the paper, the smaller the air permeability index and the lower the absorptive capacity. In addition, the air permeability index can also indirectly reflect the moisture-proof ability of paper products. The measurement method of air permeability is to measure the amount of air passing through the paper per minute under certain area and vacuum conditions.

Test points

The air permeability meter is a key device used to measure the air permeability of paper. There are several key points to pay special attention to when conducting air permeability measurements. The first is the sealing of the instrument to ensure that there will be no gas leakage during operation. In addition, the water surface position of the U-shaped pressure gauge is also an important parameter for calibration, and its accuracy directly affects the reliability of the measurement results.

When calibrating the air permeability meter, the pressure adjustment process needs to be carried out slowly to prevent water in the U-shaped tube from entering the air box and interfering with the measurement. At the same time, when verifying the air tightness of the instrument, it is necessary to avoid using aged rubber gaskets to ensure stable and reliable sealing performance.

Instrument maintenance

To ensure the long-term stability and accuracy of a gas permeability meter, instrument maintenance is critical. During the maintenance process, you first need to pay attention to the flexibility of each valve and the firmness of each connection point to ensure that the instrument can operate normally during operation. Accessories such as compression screws and scales also need to maintain flexible movement to ensure that they are fully functional.

Rubber accessories require special attention to ensure that they do not age to ensure the sealing of the air permeability meter. Aging rubber material may lead to a decrease in air-tightness performance, thus affecting the accuracy of measurement results. Therefore, regular replacement of rubber accessories is a necessary task in instrument maintenance.

The air permeability Tester is an indispensable tool in paper quality control. It provides an intuitive quality assessment method for paper production. Through careful calibration and maintenance, we can ensure the accuracy and reliability of air permeability measurement, providing more accurate quality assurance for the paper manufacturing industry. The secrets inside the paper are revealed through the air permeability Tester, which provides scientific and reliable support for improving paper quality.