718360

ISO 4814:1980 [ Withdrawn ]

Household sewing machines -- Determination of stability of needle thread tension

standard by International Organization for Standardization , 02/01/1980

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Full Description

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.

 

Product Details

Published:
02/01/1980
Number of Pages:
2
File Size:
1 file , 450 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus