UNI EN ISO 15971 : 2014
Current
The latest, up-to-date edition.
NATURAL GAS - MEASUREMENT OF PROPERTIES - CALORIFIC VALUE AND WOBBE INDEX
24-04-2014
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principles of measurement
5 Performance assessment and acceptance tests
6 Sampling and installation guidelines
7 Calibration
8 Verification
9 Maintenance
10 Quality control
Annex A (normative) - Symbols and units
Annex B (informative) - Examples of type-approval and
technical specifications
Annex C (informative) - Class 0 mass-basis calorimetry
Annex D (informative) - Direct combustion calorimetry
Annex E (informative) - Stoichiometric combustion devices
Annex F (informative) - Effect of non-alkane gases on
stoichiometric combustion devices
Annex G (informative) - Measurement of Wobbe index
Bibliography
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