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BS ISO 3341:2000 Textile glass. Yarns. Determination of breaking force and breaking elongation, 2000
- Textile glass�— Yarns�— Determination of breaking force and breaking elongation
- Contents Page
- Foreword
- Textile glass�— Yarns�— Determination of breaking force and breaking elongation [Go to Page]
- 1��� Scope [Go to Page]
- 1.1��� This International Standard
- 1.2��� The method is applicable to various types of glass yarn (single, folded, cabled, strands, ...
- 1.3��� The method is not applicable to glass yarns which, in equilibrium with the standard atmosp...
- 2��� Normative references
- 3��� Terms and definitions
- 4��� Principle [Go to Page]
- 4.1��� The breaking force and the elongation at break are determined by elongating a specimen by ...
- 4.2��� The value of the breaking force per unit linear density of the yarn, i.e. the breaking str...
- 5��� Apparatus [Go to Page]
- 5.1��� Tensile-testing machine [Go to Page]
- 5.1.1��� The method is designed for test machines with constant rate of elongation (CRE). If othe...
- 5.1.2��� The maximum error in the indicated force, at any point in the range in which the machine...
- 5.1.3��� The design of the clamps is critical to obtaining correct breaks and consistent results....
- 5.1.4��� The test machine shall be adjusted to give a constant rate of extension of
- 6��� Conditioning
- 7��� Specimens [Go to Page]
- 7.1��� Number of specimens
- 7.2��� Selection of specimens
- 8��� Procedure [Go to Page]
- 8.1��� General
- 8.2��� Determination [Go to Page]
- 8.2.1��� After conditioning as specified in clause
- 8.2.2��� If the test machine has a pre-tensioning capability, apply to the specimen a pre-tension of
- 8.2.3��� Set the moving clamp in motion. After the specimen breaks, record the breaking force and...
- 8.2.4��� Repeat the determination on the remaining specimens.
- 8.2.5��� Disregard any results obtained with specimens that slip in the jaws, or that break in th...
- 9��� Expression of results [Go to Page]
- 9.1��� Breaking force
- 9.2��� Elongation at break
- 9.3��� Breaking strength
- 10��� Precision
- 11��� Test report [Go to Page]