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IS Number/आईएस संख्या : IS 1721:1970

IS Title/आईएस शीर्षक : Specification for hair belting yarn (first revision) (Withdrawn)

Superseded by IS/प्रतिस्थापित आईएस : IS 1721 : 2023

Degree of Equivalence/समतुल्यता स्तर : Indigenous

Number of Revisions/पुनरीक्षणों की संख्या : 1

Number of Amendments/संशोधनों की संख्या : No amendment issued

Aspect/पक्ष : Product Specification

Language/भाषा : English

Reaffirmation Year/पुनर्पुष्टि वर्ष :

Technical Department/तकनीकी विभाग : TXD (Textiles Department)

Technical Committee/तकनीकी समिति : TXD 04 (Wool, Wool Products and Textile Floor Coverings Sectional Committee)

Member Secretary/सदस्य सचिव : HIMANSHU SHUKLA (SCIENTIST-C)

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Indian Standards Referred In IS IS 1721:1970
:

1	IS 32:2023	Code for seaworthy packaging of woollen and worsted yarn and cloth (second revision)	TXD 04
2	IS 681:2015	Textiles – Methods for determination of universal count of woollen and worsted yarn (first revision)	TXD 01
3	IS 741:1971	Code for inland packaging of woollen and worsted yarn and cloth (first revision)	TXD 04
4	IS 1670:2025	Textiles – Yarn – Determination of breaking load and elongation at break of single strand (second revision)	TXD 01
5	IS 17945:2022	Textiles - Determination of twist in yarns Part 1 Direct counting method	TXD 01

International Standards Referred In IS 1721:1970

Standard contains no Cross Referenced International Standard.

IS 1721:1970
is Referred in following Indian Standards :

1	IS 530 : 1976	Specification for solid - Woven impregnated hair belting for power transmission (Second Revision)	PGD 40

Certification	:
Group	:	Textile, Textile Products and Machinery
Sub Group	:	Cotton, wool and man made textile Products
Sub Sub Group	:	Worsted and woolen products
Aspect	:	Product Specification

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