NEN-EN-ISO 7326
Rubber and plastics hoses - Assessment of ozone resistance under static conditions
| Organization: | NEN |
| Publication Date: | 1 March 2008 |
| Status: | inactive |
| Page Count: | 22 |
| ICS Code (Hoses and hose assemblies): | 23.040.70 |
scope:
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.
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