Nbsp& Nbsp; The detection of air permeability is an essential step in your production. According to QB/T1667-2012 "Paper and Board Permeability Tester", GB/T458-2008 "Paper and Board Permeability Measurement", ISO5636-2:1984, ISO5636-5:2003, ISO5636-31992.We can test various types of paper and cardboard, including paper cores, cardboard boxes, corrugated boards, corrugated cardboard, kraft paper, and other composite materials. And do you understand the testing of air permeability? Air permeability is the key to ensuring product quality. If you are not familiar with air permeability testing, then let us help you! The instrument has simple operation, stable performance, and high accuracy.&Nbsp;&Nbsp;Permeability reflects the amount of voids in the paper structure and is one of the important physical performance indicators for many types of paper. For example. Paper, cigarette paper, cable paper, copy paper, capacitor paper, and industrial filter paper have different requirements for air permeability depending on their purpose. The permeability is related to the filtration speed of industrial filter paper, the exhaust speed of cement bag paper, the dielectric properties of cable paper and capacitor paper, and the combustion performance of cigarette paper.There are many instruments for measuring air permeability, such as Schopper, Gurley, Benda, Siudall, Winkler Kars tens, Dalenas, etc. At present, the instrument used in China's standard GB/T 458-1989 is the Schoenberg gas permeability meter, while GB/T 2679.13-1996 specifies that the medium range of gas permeability is the Bentsen type.By using the AT-TQ-11 computerized paper and cardboard permeability tester, you don't need to waste time searching and determining test parameters, and can easily complete the test, saving you a lot of time and cost. The AT-TQ-11 computerized paper and cardboard permeability tester starts with one press and is fully automatic for testing. The intelligent computer automatically completes the test. Automatic recording of test data. The test results are analyzed and processed by a computer. It is a professional, simple, and practical air permeability tester for paper and cardboard.