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Standards Development
This document specifies a method of measuring the smoothness of paper and board, called the Bekk method.
The smoothness of a wide range of papers and boards may be measured by this method and it is especially recommended for smooth papers and boards. However, for very smooth samples, measurement times may be impractically long.
This method is not recommended for material greater than 0,5 mm thick or very permeable papers and board, since the amount of air passing through the test piece can influence the result.
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