EN ISO 21329:2004

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
   4.1 Symbols
   4.2 Abbreviated terms
5 Test categories
   5.1 General
   5.2 Pressure, temperature and depth ratings
   5.3 Application levels
   5.4 Confidence levels
6 Test requirements
   6.1 General
   6.2 Purpose of tests
   6.3 Basis for mechanical loads
   6.4 Test-house selection
   6.5 Selection of tests and number of test samples
   6.6 Additional tests
   6.7 Prior test results
7 Connector manufacturer requirements
   7.1 General
   7.2 Quality control
   7.3 Connector geometry and performance data
   7.4 Selection of diameter
   7.5 Setting tolerances
   7.6 Connector material requirements
   7.7 Preparation of test samples
   7.8 Ports
   7.9 Replacement test samples
   7.10 Test record retention
8 Test-house preparations
   8.1 General
   8.2 Calibration requirements
   8.3 Pressurization media
9 Leak detection
   9.1 Leak-detection methods
   9.2 Leak-detection sensitivity
   9.3 External pressure leak detection
10 Make-and-break testing
   10.1 General requirements
   10.2 Make-up method
   10.3 Repeated make-up and breakout
   10.4 Final make-up
   10.5 Reverse-torque tests of non-rotational make-up
        connectors
   10.6 Acceptance criteria
11 Service-load test
   11.1 Set-up
   11.2 Confirmation of seal integrity
   11.3 Selection of test pressures and temperatures
   11.4 Installation tests
   11.5 Hydrostatic pressure tests
   11.6 Operational unrestrained tests
   11.7 Operational restrained tests
12 Limit-load tests
   12.1 General
   12.2 Tension-to-failure test
   12.3 Compression-to-failure test
   12.4 Pressure-to-failure test
   12.5 Bending-to-failure test
13 Bending-fatigue test procedures
   13.1 General
   13.2 Setting stress ranges for the test
   13.3 Bending-fatigue test set-up
   13.4 Bending-fatigue test procedure
   13.5 Interpretation of fatigue results
Annex A (normative) Application levels
Annex B (normative) Connector geometry and performance data
Annex C (normative) Calculation of connector service loads
Annex D (normative) Test data tables
Annex E (normative) Connector test reports - Content
Annex F (informative) Test sizes and data extrapolation
                      considerations
Annex G (informative) Additional testing for special
                      applications
Annex H (informative) Additional information on fatigue
Bibliography

ISO 21329:2004 specifies requirements and provides guidance for the testing of mechanical connectors for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623. The tests specified in ISO 21329:2004 are intended to form part of the design verification process for connectors. They provide objective evidence that connectors conform to a defined performance envelope. ISO 21329:2004 does not cover the use of design procedures as part of the qualification process for mechanical connectors, nor does it address fabrication and quality control. However, it can be used as input to a qualification procedure.Although its principles can be applied, ISO 21329:2004 does not address a) connectors that are designed to rotate in use, b) manifolds, c) topsides pipework or piping, d) flanges, e) connectors used in pipelines installed by reeling or J-tube pulls, f) factory acceptance testing, g) statistical bases for risk analysis.