SN EN ISO 7326 : 2017
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The latest, up-to-date edition.
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01-01-2017
ISO 7326:2016 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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