ISO 20890-3:2020
Guidelines for in-service inspections for primary coolant circuit components of light water reactors — Part 3: Hydrostatic testing
This document gives guidelines for in-service system pressure tests of the reactor coolant circuit of light water reactors.
This document specifies the test technique, the requirements for measuring equipment and additional devices, the preparation and performance of the test as well as the recording and documentation, for the purpose to ensure the reliability and comparability of tests.
NOTE Data on (test) pressure, (test) temperature, scope of testing, rates of change of pressure and temperature, test schedule and inspection intervals can be obtained from the applicable national nuclear codes.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test system
4.1 General
4.2 Standard system
5 Requirements
5.1 Personnel requirements
5.2 Test object
5.3 Measuring equipment
5.3.1 General
5.3.2 Pressure measurement of the operating instructions
5.3.3 Test manometer
5.3.4 Temperature measurement
5.4 Pressure generation system
6 Testing
6.1 Preparations
6.2 Performance
6.3 Final measures
7 Test report
Annex A (informative) Standard test procedures
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test system
4.1 General
4.2 Standard system
5 Requirements
5.1 Personnel requirements
5.2 Test object
5.3 Measuring equipment
5.3.1 General
5.3.2 Pressure measurement of the operating instructions
5.3.3 Test manometer
5.3.4 Temperature measurement
5.4 Pressure generation system
6 Testing
6.1 Preparations
6.2 Performance
6.3 Final measures
7 Test report
Annex A (informative) Standard test procedures
Bibliography