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Norm

ISO 4814:1980

Issue date: 1980 02 01

Household sewing machines — Determination of stability of needle thread tension

Specifies a method of test for determining the variation of needle thread tension at given positions of the tension regulator. The method is applicable to motor-operated ...
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Withdrawn : 2013 11 18
Publisher:
International Organization for Standardization
Format:
Digital | 2 Pages
Language:
English
ICS
61.080
Topics
Mechanical & plant engineering, Textile machinery, Sewing machines and other equipment for the clothing industry Safety, Textile machinery, Sewing machines and other equipment for the clothing industry

Specifies a method of test for determining the variation of needle thread tension at given positions of the tension regulator. The method is applicable to motor-operated household sewing machines, but it may also be possible to apply it to hand- or treadle-operated machines. Includes additionally to principle, material and apparatus, procedure, expression of results and test report an annex which specifies the cotton thread.