This standard specifies the air permeability of paper and paperboard with an ISO air permeance of 0.1 to 100 μm/(Pa?s) or an air resistance (Gurley) of 1.4 to 1300 s. Specifies the method of testing. However, this excludes materials such as crepe paper and corrugated paper that allow air to leak from the surface or edges even when tightly tightened.
JIS P 8117:1998 history
2009JIS P 8117:2009 Paper and board -- Determination of air permeance and air resistance(medium range) -- Gurley method
1998JIS P 8117:1998 Paper and board -- Determination of air permeance -- Gurley method
1980JIS P 8117:1980 Testing method for air permeability of paper and paperboard