I.S. EN 13597:2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
   3.1 Terms and definitions
   3.2 Symbols and abbreviations
   3.3 Three dimensional definition of characteristics
4 Definition documents
   4.1 General
   4.2 Documents to be provided by the customer
   4.3 Documents to be provided by the supplier
5 Conditions of utilisation
   5.1 General
   5.2 Climatic and atmospheric conditions
   5.3 Environmental conditions
   5.4 Mechanical conditions
6 Definition of the product
   6.1 General
   6.2 Resistance to operating conditions
       6.2.1 Low temperature
       6.2.2 Ozone
       6.2.3 Oil and petroleum product
       6.2.4 Cleaning product
       6.2.5 Abrasion
       6.2.6 Fire behaviour
       6.2.7 Other conditions
   6.3 Physical characteristics
       6.3.1 Appearance of diaphragms in new condition
       6.3.2 Appearance of diaphragms under extreme
             horizontal deformations
       6.3.3 Adherence between piles
       6.3.4 Pressure resistance
       6.3.5 Air-tightness
       6.3.6 Fatigue resistance
       6.3.7 Burst resistance
   6.4 Geometrical and dimensional characteristics
       6.4.1 Space envelope
       6.4.2 Overall dimensions of new diaphragms
       6.4.3 Overall dimensions of grown diaphragms
   6.5 Functional characteristics
       6.5.1 Stiffnesses of diaphragms
       6.5.2 Characteristic "internal pressure versus
             axial static force"
       6.5.3 Axial isobar characteristic
7 Inspection and test methods
   7.1 General
       7.1.1 General test conditions
       7.1.2 Instrumentation
       7.1.3 Definition and preparation of test pieces
   7.2 Verification of the resistance to operating conditions
       7.2.1 Low temperature
       7.2.2 Ozone
       7.2.3 Oil and petroleum product
       7.2.4 Cleaning product
       7.2.5 Abrasion
       7.2.6 Fire behaviour
   7.3 Verification of physical characteristics
       7.3.1 Appearance of diaphragms in new condition
       7.3.2 Appearance of diaphragms under extreme
             horizontal deformations
       7.3.3 Adherence between plies
       7.3.4 Pressure resistance
       7.3.5 Air-tightness
       7.3.6 Fatigue resistance
       7.3.7 Burst resistance
   7.4 Verification of geometrical and dimensional
       characteristics
       7.4.1 Overall dimensions of diaphragms in
             relation to axial static force
       7.4.2 Overall dimensions of diaphragms in
             relation to radial deformation
       7.4.3 Overall dimensions of diaphragms in
             relation to axial deformation
   7.5 Verification of functional characteristics
       7.5.1 Stiffnesses
       7.5.2 Characteristic "internal pressure versus axial
             static force"
       7.5.3 Axial isobar characteristic
8 Marking
9 Traceability
10 Supplier production plan qualification
11 Approval and qualification of the product
   11.1 Approval
   11.2 Qualification
        11.2.1 General
        11.2.2 Test pieces
        11.2.3 Qualification procedure
        11.2.4 Validity of the product qualification
12 Inspection and quality surveillance
Annex A (informative) Types of diaphragms
        A.1 Object
        A.2 Illustration of typical diaphragm
            installations
Annex B (normative) Test pieces taken from diaphragms
        B.1 Object
        B.2 Preparation of test pieces
        B.3 Definition of zones for taking test pieces
            on diaphragms
Annex C (informative) Example of fatigue test programme
        C.1 Object
        C.2 Test method
Annex D (normative) Qualification procedure
        D.1 Object
        D.2 Qualification procedure
Annex E (informative) Recommended tolerances to
        characteristics of diaphragms
        E.1 Object
        E.2 Tolerance classes
Bibliography

Provides: - characteristics that suspension diaphragms achieves, together with applicable inspection and test methods to be carried out for verification; - approval procedure to be implemented by the customer; - guidelines for qualification of the product with specified requirements; - quality monitoring of diaphragms in manufacture; - supply requirements.