UNE-EN ISO 7326:2017
Current
The latest, up-to-date edition.
Rubber and plastics hoses - Assessment of ozone resistance under static conditions (ISO 7326:2016)
Hardcopy , PDF
Spanish, Castilian, English
08-02-2017
This International Standard specifies five methods for determining the ozone resistance of the outer covers of hoses:
method 1, for bore sizes up to and including 25 mm, carried out on the hose itself;
method 2, for bore sizes greater than 25 mm, carried out on a test piece from the hose wall;
method 3, for bore sizes greater than 25 mm, carried out on a test piece from the cover;
method 4, for all bore sizes, carried out on the hose itself;
method 5, for all bore sizes, carried out on hoses that are expandable, for example textile-reinforced hoses.
NOTEFor hoses with built-in fittings from which it is not possible to take test pieces, the ozone resistance may be assessed on slabs in accordance with ISO 1431-1, using test sheets of the appropriate polymeric compound vulcanized to the same degree.
| Committee |
CTN 53/SC 1
|
| DevelopmentNote |
Supersedes UNE EN 27326. (09/2008)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| ISO 7326:2016 | Identical |
| EN ISO 7326:2016 | Identical |
| ISO 23529:2016 | Rubber — General procedures for preparing and conditioning test pieces for physical test methods |
| ISO 8330:2007 | Rubber and plastics hoses and hose assemblies — Vocabulary |
| ISO 1431-1:2012 | Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and dynamic strain testing |
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