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Homepage>BS Standards>85 PAPER TECHNOLOGY>85.060 Paper and board>BS ISO 8791-3:2017 Paper and board. Determination of roughness/smoothness (air leak methods) Sheffield method
immediate downloadReleased: 2017-09-18
BS ISO 8791-3:2017 Paper and board. Determination of roughness/smoothness (air leak methods) Sheffield method

BS ISO 8791-3:2017

Paper and board. Determination of roughness/smoothness (air leak methods) Sheffield method

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Standard number:BS ISO 8791-3:2017
Pages:22
Released:2017-09-18
ISBN:978 0 580 90603 9
Status:Standard
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BS ISO 8791-3:2017


This standard BS ISO 8791-3:2017 Paper and board. Determination of roughness/smoothness (air leak methods) is classified in these ICS categories:
  • 85.060 Paper and board

This part of ISO 8791 specifies a method for the determination of the roughness of paper and board using the Sheffield apparatus.

This part of ISO 8791 is applicable to papers and boards which have Sheffield roughness values between 10 and about 3 000 ml/min. It is not suitable for soft papers which allow the lands of the test head to indent the surface, or for high air-permeance papers which allow a significant flow of air through the sheet, or for papers which will not lie flat during the test.