Textiles. Tear properties of fabrics. Part 4: Determination of tear force of tongue-shaped test specimens (Double tear test).(ISO 13937-4:2000)

Available format(s)

Hardcopy , PDF

Language(s)

Spanish, Castilian, English

Published date

28-02-2001

Publisher

Asociacion Espanola de Normalizacion

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Sampling
6 Apparatus
7 Atmosphere for conditioning and testing
8 Preparation of test specimens
9 Procedure
10 Calculation and expression of results
11 Test report
Annex A (informative) Suggested procedure for sampling
Annex B (informative) Example of pattern for cutting out
test specimens from the laboratory
sample
Annex C (informative) Sample calculation of tear force
Bibliography

Describes a double-tear procedure known as the tongue test, with a test specimen with cuts that are shaped to form a tongue. The tear force measurement is the force needed to propagate the previously started double tears when the force is applied parallel to the cuts and the fabric tears in the direction of the force. Applies mainly to woven textile fabrics but also covers fabrics produced by other techniques, such as some nonwovens. Does not generally apply to woven elastic fabrics and knitted fabrics.

Committee	CTN 40
DocumentType	Standard
Pages	18
PublisherName	Asociacion Espanola de Normalizacion
Status	Current

Standards	Relationship
ISO 13937-4:2000	Identical
NBN EN ISO 13937-4 : 2000	Identical
NEN EN ISO 13937-4 : 2000	Identical
NS EN ISO 13937-4 : 1ED 2000	Identical
I.S. EN ISO 13937-4:2000	Identical
SN EN ISO 13937-4 : 2000	Identical
UNI EN ISO 13937-4 : 2002	Identical
BS EN ISO 13937-4:2000	Identical
EN ISO 13937-4 : 2000	Identical
NF EN ISO 13937-4 : 2000	Identical
DIN EN ISO 13937-4:2000-06	Identical