British Standards Institution

Source:: ISO
Committee:: PAI/11 - Methods of test for paper, board and pulps
Categories:: Paper and board
Comment period start date:: 27/08/2025
Comment period end date:: 20/10/2025
Number of comments:: 0

Comment by:

20th Oct

Scope

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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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

19/06/2025

3. Public Comments

Public Comments start date:

27/08/2025

Public Comments end date:

20/10/2025

Learn more about the standards development process

Standards Development

BS ISO 5627 ISO 5627 Paper and board. Determination of smoothness (Bekk method)

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