GB/T 22819-2008 "Determination of air permeability of highly permeable paper" specifies the method for determining the air permeability of highly permeable paper, which is applicable to paper with an air permeability greater than 10000 mL/(min·kPa·m²). The method uses a specific air permeability tester to calculate the air permeability by measuring the volume of air passing through the sample per unit time under a specific pressure difference. It also clarifies requirements for sample preparation, temperature and humidity conditioning, and instrument calibration to ensure the accuracy of air permeability test results for highly permeable paper.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Y30 | ICS | 85.010 |
| Release Date | 2008-12-30 00:00:00 | Implementation Date | 2009-09-01 00:00:00 |
