REINFORCEMENT YARNS - DETERMINATION OF TWIST

Published date

26-08-2009

Publisher

Ente Nazionale Italiano di Unificazione (UNI)

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test specimens
7 Conditioning and test atmosphere
8 Procedure
9 Expression of results
10 Precision
11 Test report

Describes a method for the determination of twist in yarns made from textile glass, carbon, aramid or any other reinforcement fibres.

DevelopmentNote	Partially Supersedes UNI 9897/6 (06/2001)
DocumentType	Standard
PublisherName	Ente Nazionale Italiano di Unificazione (UNI)
Status	Current
Supersedes	UNI 9897-6 : 1992 UNI EN ISO 1890 : 1999

Standards	Relationship
NEN EN ISO 1890 : 2009	Identical
DIN EN ISO 1890:2009-10	Identical
NS EN ISO 1890 : 2009	Identical
SN EN ISO 1890:2009	Identical
NF EN ISO 1890 : 2009	Identical
ISO 1890:2009	Identical
I.S. EN ISO 1890:2009	Identical
EN ISO 1890:2009	Identical
BS EN ISO 1890:1997	Identical
UNE-EN ISO 1890:2010	Identical
NBN EN ISO 1890 : 2009	Identical

ISO 2:1973	Textiles Designation of the direction of twist in yarns and related products
ISO 291:2008	Plastics Standard atmospheres for conditioning and testing
ISO 1889:2009	Reinforcement yarns Determination of linear density