• There are no items in your cart

BS ISO 3341:2000

Current
Current

The latest, up-to-date edition.

Textile glass. Yarns. Determination of breaking force and breaking elongation
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

06-15-2000

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

Defines a procedure to determine the tensile breaking force and elongation at break of glass yarns taken from packages. Applies to several types of glass yarn, i.e. single, cabled, folded, structures without twist, strands, rovings etc.

1.1 This International Standard specifies a method for the determination of the tensile breaking force and elongation at break of glass yarns taken from packages.

1.2 The method is applicable to various types of glass yarn (single, folded, cabled, strands, structures without twist, rovings, etc.). It is basically intended for single, folded and cabled glass yarns having a diameter of less than 2mm, or a linear density lower than 2000 tex, taken from packages. Heavier yarns may be also tested providing the test conditions are acceptable to all interested parties.

1.3 The method is not applicable to glass yarns which, in equilibrium with the standard atmosphere and under a pre-tension of 5mN/tex, are elongated by more than 0,5%. Such yarns can be tested using a lower pre-tension (for example2,5mN/tex or 1mN/tex), acceptable to all interested parties. This would occur mainly when dealing with staple-fibre yarns.

NOTE1 Though the determination may be run on beamed yarn or on yarns taken from fabrics, the results must be considered as indicative only.

NOTE2 This test method is primarily intended for material characterization and quality control. Fibre-to-fibre abrasion and other factors such as insufficiently uniform tension (catenary) will increase variability and generate low test values. This will consequently impede accurate correlation between performance of the yarns and end use applications. Extreme care should be taken in considering this method for specification purposes.

NOTE3 Though this International Standard provides the possibility of determining the elongation at break, this practice is not recommended, however. Indeed, a correct assessment of the elongation will only be obtained using an extensometer; it will not be obtained by measuring the distance traversed by the moving clamp. On the other hand, experience shows that the use of an extensometer is quite delicate and often causes damage to the specimen.

Committee
PRI/42
DevelopmentNote
Supersedes 95/126610 DC. (08/2004)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 3341:2000 Identical

ISO 291:2008 Plastics Standard atmospheres for conditioning and testing
ISO 1889:2009 Reinforcement yarns Determination of linear density

View more information
US$143.74
Excluding Tax where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.