The GB/T 22901-2008 standard specifies a general method for the determination of Porosity in the medium range of paper and Cardboard. The standard is suitable for evaluating the air permeability of paper under specified conditions, helping to determine the characteristics of the vapor transmission rate of paper in practical applications and ensuring that it meets the requirements of use.
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 |
