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Description of BS 5421-2:1978 1978This Part of BS 5421 describes eight methods of test for polyurethane thread (elastane yarn):
Preparation of test specimens; mass per unit length; breaking load, tenacity and elongation at break; load at predetermined elongation; stress decay; set; resistance to copper staining; resistance to fume staining.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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