ISO 23840:2021
Water hydraulics — Water-hydraulic pumps — Methods of testing and representing basic steady-state performance
This document specifies methods for determining the performance and the efficiency of water-hydraulic positive displacement pumps having continuously rotating shafts. This document provides test equipment, a test procedure under steady-state conditions and the presentation of test results.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Water
6 Tests
6.1 Requirements
6.1.1 General
6.1.2 Installation of the unit under test
6.1.3 Test fluid
6.1.4 Temperature
6.2 Test circuit
6.3 Test measurement
6.4 Preparation of test
6.5 Measurement procedure
7 Expression of results
Annex A (informative) Errors and classes of measurement accuracy
Annex B (normative) Permissible variation of mean indicated values of controlled parameters
Annex C (informative) Example of graphs presenting test results
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Water
6 Tests
6.1 Requirements
6.1.1 General
6.1.2 Installation of the unit under test
6.1.3 Test fluid
6.1.4 Temperature
6.2 Test circuit
6.3 Test measurement
6.4 Preparation of test
6.5 Measurement procedure
7 Expression of results
Annex A (informative) Errors and classes of measurement accuracy
Annex B (normative) Permissible variation of mean indicated values of controlled parameters
Annex C (informative) Example of graphs presenting test results
Bibliography