NF ISO 8791-2

January 2014

Standard Current

Paper and board - Determination of roughness/smoothness (air leak methods) - Part 2 : Bendtsen method

ISO 8791-2:2013 specifies a method for the determination of the roughness of paper and board using the Bendtsen apparatus. ISO 8791-2:2013 is applicable to paper and board which have Bendtsen roughness values between about 5 ml/min and 3 000 ml/min when measured with variable-area type testers and between about 50 ml/min and 5 000 ml/min when measured with electronic type testers. It is not suitable for soft papers which allow the land to make a significant impression on the surface or for high-air-permeance papers which allow a significant flow of air to pass through the sheet, or for papers which will not lie flat under the measuring head.

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Main informations

Collections

National standards and national normative documents

Publication date

January 2014

Number of pages

22 p.

Reference

NF ISO 8791-2

ICS Codes

85.060 Paper and board

Classification index

Q03-079-2

Print number

International kinship

ISO 8791-2:2013

Sumary

Paper and board - Determination of roughness/smoothness (air leak methods) - Part 2 : Bendtsen method

ISO 8791-2:2013 specifies a method for the determination of the roughness of paper and board using the Bendtsen apparatus.

ISO 8791-2:2013 is applicable to paper and board which have Bendtsen roughness values between about 5 ml/min and 3 000 ml/min when measured with variable-area type testers and between about 50 ml/min and 5 000 ml/min when measured with electronic type testers. It is not suitable for soft papers which allow the land to make a significant impression on the surface or for high-air-permeance papers which allow a significant flow of air to pass through the sheet, or for papers which will not lie flat under the measuring head.

Table of contents

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Avant-propos
iv
1 Domaine d'application
1
2 Références normatives
1
3 Termes et définitions
1
4 Principe
1
5 Appareillage
2
5.1 Appareil Bendtsen pour essai (deux modèles)
2
5.2 Débitmètre à section variable
2
5.3 Débitmètre électronique
3
6 Échantillonnage
5
7 Conditionnement
5
8 Préparation des éprouvettes
5
9 Étalonnage et vérification
5
9.1 Appareil de type débitmètre à section variable
5
9.2 Appareil de type débitmètre électronique
5
10 Mode opératoire
5
10.1 Atmosphère d'essai
5
10.2 Mesurage au moyen de l'appareil de type débitmètre à section variable
5
10.3 Mesurage au moyen de l'appareil de type débitmètre électronique
6
11 Expression des résultats
6
12 Rapport d'essai
7
Annexe A (normative) Entretien et maintenance des appareils Bendtsen pour essai, de type débitmètre à section variable
8
Annexe B (normative) Étalonnage des tubes capillaires et des débitmètres à section variable et électronique
10
Annexe C (informative) Fidélité
14
Bibliographie
16

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