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