BS IS0 8791-5:2020 BSl Standards Publication Paper and board Determination of roughness/smoothness (air leak methods) Part 5: Oken method bsi. BSISO8791-5:2020 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS08791-5:2020. The UK participation in its preparation was entrusted to Technical Committee PAI/11, Methods oftest for paper, board and pulps. A list of organizations represented on this committee can be obtained on requestto its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. TheBritishStandardsInstitution2020 PublishedbyBSIStandardsLimited2020 ISBN9780580978173 ICS85.060 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the StandardsPolicyandStrategyCommitteeon31May2020. Amendments/corrigendaissued sincepublication Date Textaffected BS IS0 8791-5:2020 ISO INTERNATIONAL STANDARD 8791-5 First edition 2020-05 Paper and board Determination of roughness/smoothness (air leak methods) Part 5: Oken method Papieretcarton-Déterminationdelarugosité/dulissé (methodes du débit d'air) - Partie5:MéthodeOken Reference number IS0 8791-5:2020(E) ISO @ ISO 2020