Reference number
ISO 4814:1980
ISO 4814:1980
© ISO 2024
ISO 4814:1980
Household sewing machines — Determination of stability of needle thread tension
Edition 1
1980-02
1980-02
Retirada
Resumen
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.
Informaciones generales
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Estado: RetiradaFecha de publicación: 1980-02Etapa: Retirada de la Norma Internacional [95.99]
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Edición: 1Número de páginas: 2
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Comité Técnico :ISO/TC 148ICS :61.080
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