IS 1671 : 2025 Textiles - Strength Parameters of Yarns Spun on Cotton System - Methods of Test
1 SCOPE
1.1 This standard prescribes methods for determination of strength parameters of yarns spun on cotton system using cotton count and tex system.
1.2 In cotton count system, determination of lea breaking load and count strength product (CSP) have been prescribed and in the metric system, determination of skein breaking load, yarn strength index (YSI) and skein breaking tenacity (SBT) have been prescribed.
1.3 This test method is applicable to spun yarns, either single or plied, composed of any fiber or blend of fibers, but is not suitable for yarns which stretch more than 5 percent when the tension is increased from 2.5 mN/tex to 7.5 mN/tex.
2 REFERENCES
The standards listed in Annex A contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards.
| IS No. | Title |
| IS 196 : 2024 | Atmospheric conditions for testing (second revision) |
| IS 232 : 2020 | Glossary of textile terms - Natural fibres (third revision) |
| IS 1315 : 2025 | Textiles - Linear density of yarns spun on cotton system - Methods of test (second revision) |
| IS 3920 : 1985 | Methods for sampling of cotton yarn for determination of physical characteristics (first revision) |
| IS 6359 : 2023 | Method for conditioning of textiles (first revision) |