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BS EN ISO 7326:2016

BS EN ISO 7326:2016

$102.76

Rubber and plastics hoses. Assessment of ozone resistance under static conditions

Published By Publication Date Number of Pages
BSI 2016 20
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This document 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.

NOTE

For hoses with built-in fittings from which it is not possible to take test pieces, the ozone resistance can be assessed on slabs in accordance with ISO 1431‑1 , using test sheets of the appropriate polymeric compound vulcanized to the same degree.

PDF Catalog

PDF Pages PDF Title
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 General considerations
10 5 Apparatus
6 Test pieces
6.1 Type of test piece
6.1.1 Method 1
6.1.2 Method 2
6.1.3 Method 3
11 6.1.4 Method 4
6.1.5 Method 5
6.2 Number of test pieces
7 Conditioning of test pieces
8 Test conditions
9 Procedure
9.1 Method 1
12 9.2 Method 2
9.3 Method 3
13 9.4 Method 4
14 9.5 Method 5
15 10 Test report
16 Bibliography

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BS EN ISO 7326:2016
$102.76