BS 5421-2:1978

This standard BS 5421-2:1978 Methods of test for elastomeric threads is classified in these ICS categories:

• 83.060 Rubber

This Part of BS 5421 describes eight methods of test for polyurethane thread (elastane yarn):

method 1	Preparation of test specimens;
method 2	Determination of mass per unit length;
method 3	Determination of breaking load, tenacity and elongation at break;
method 4	Determination of load at predetermined elongation;
method 5	Determination of stress decay;
method 6	Determination of set;
method 7	Resistance to copper staining during laundering;
method 8	Resistance to atmospheric fume staining.

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.