NF EN 21746 : 1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
01-04-2002
12-01-2013
National foreword
Committees responsible
Method
1 Scope and field of application
2 References
3 Method A
4 Method B
5 Expression of results
6 Test report
Figures
1 Method A - Arrangement for measuring bending force
2 Schematic arrangement for method A
3 Measurement of coefficient of deformation
4 Schematic arrangement for method B
Describes two methods for determining behaviour of rubber or plastics hoses or tubing when bent to a specified radius. Method A is suitable for hoses and tubing of bore sizes up to 80 mm. The method also provides a way of measuring force required to reach a specified bend radius and test may be at a specified internal pressure. In Method B, bending characteristics, including force required for bending, may be determined over a range of temperatures from -60 degrees C to +200 degrees C. Applicability is limited to hoses and tubing of small bore sizes, i.e., up to 12,5 mm.
| DevelopmentNote |
Supersedes NFT 47 203 (06/2002)
|
| DocumentType |
Standard
|
| PublisherName |
Association Francaise de Normalisation
|
| Status |
Superseded
|
| Supersedes |
| Standards | Relationship |
| DIN EN 21746:1993-04 | Identical |
| I.S. EN 21746:1993 | Identical |
| BS EN 21746:1993 | Identical |
| UNE-EN 21746:1994 | Identical |
| EN 21746 : 1993 | Identical |
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