Historical
ISO 8791-2:1990
Paper and board -- Determination of roughness/smoothness (air leak methods) -- Part 2: Bendtsen method
This part of ISO 8791 specifies a method for the determination of the roughness of paper and board using the Bendtsen apparatus. It should be read in conjunction with ISO 8791-1.
The method is applicable to paper and board which have Bendtsen roughness values between about 50 ml/min and 1200 ml/min. It is not suitable for soft papers which allow the land to make a significant impression on the surface or for high air permeance papers which allow a significant flow of air to pass through the sheet, or for papers which will not lie flat under the heavy metal annulus.
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International Organization for Standardization [iso]
International Organization for Standardization [iso]