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ISO 8791-4:2021

Paper and board — Determination of roughness/smoothness (air leak methods) — Part 4: Print-surf method ISO 8791-4:2021

Publication date:   May 7, 2021

General information

90.60   Close of review   Sep 3, 2026

ISO

ISO/TC 6/SC 2 Test methods and quality specifications for paper and board

International Standard

85.060   Paper and board

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Scope

This document specifies a method for determining the roughness of paper and board using an apparatus which conforms to the Print-surf method, as defined in this document. It is applicable to all printing papers and boards with which it is possible to form a substantially airtight seal against the guard lands of the measuring head.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 8791-4:2007

NOW

PUBLISHED
ISO 8791-4:2021
90.60 Close of review
Sep 3, 2026




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