IS 9543 : 2015 : Textiles - Spun Polyester Sewing Threads - Specification
Reaffirmed 2019
1 SCOPE
1.1 This standard prescribes the constructional details and other particulars of synthetic sewing threads spun from polyester staple fibre.
1.2 This standard does not specity the feel, lustre and shade of the sewing thread.