Paper. Determination of folding endurance

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-03-1994

Publisher

British Standards Institution

Methods for determining the folding endurance of paper using the Kohler Molin, Lhomargy, MIT or Schopper testers.

This International Standard specifies the methods for the determination of folding endurance of paper using Köhler Molin, Lhomargy, MIT and Schopper testers. It sets out the conditions to be observed when using these instruments, and gives the precautions to be taken in using each instrument.

Interpretation of the results is complicated by the fact that the different types of instrument included in this International Standard will give different numerical results for the same test material and they can produce dissimilar rankings for different test materials.

AnnexesA, B and C give information on the instruments and their maintenance and calibration.

NOTE1 The results obtained with the instruments described are very sensitive to atmospheric conditions under which the test is carried out, particularly humidity.

When operated with the standard loads, the Köhler-Molin, Lhomargy and Schopper methods are applicable to paper up to 0,25mm thick and having a tensile strength greater than 1,33kN/m.

The MIT tester has interchangeable folding heads allowing a range of thicknesses up to 1,25mm to be accommodated.

This International Standard does not state any preferences for any particular method.

Committee	PAI/11
DevelopmentNote	Supersedes 92/44367 DC and BS 4419(1980). (03/2005)
DocumentType	Standard
Pages	18
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 4419:1980 92/44367 DC : AUG 92

Standards	Relationship
ISO 5626:1993	Identical

ISO 187:1990	Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples
ISO 186:2002	Paper and board — Sampling to determine average quality

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BS ISO 5626:1993

Current

Abstract

Scope

General Product Information

International Equivalents

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