IS 236 : 2024 Textiles - Cotton Fibres - Evaluation of Maturity - Microscopic Method
1 SCOPE
1.1 This standard specifies a method for the evaluation of the maturity of raw cotton fibres, or fibres taken from cotton articles which have not been chemically processed.
1.2 It prescribes the following three methods for the determination of cotton fibre maturity by sodium hydroxide swelling method:
Method I Coefficient of maturity (CM)
Method II Percentage of mature fibres (PM)
Method III Maturity ratio (M)
NOTE - The results obtained by all three methods are highly correlated and any one of them can be used for the determination of maturity of cotton fibres. However, it is recommended that Method II may be followed for routine testing in view of its simplicity. The terminology used in the three methods (I, II and III) is different from method to method and has been defined in each case. The definitions of one method should not be confused with those of the other method.
2 REFERENCES
The standards given below contain provisions which, through reference in this text, constitute provision 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 editions of these standards:
| IS No. | Title |
| IS 4952 : 1968 | Methods for sampling of cotton - Bales, slivers and rovings |
| IS 6359 : 2023 | Method for conditioning of textiles (first revision) |