SN EN 12261 : 2002 AMD 1 2006
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
GAS METERS - TURBINE GAS METERS
01-09-2018
12-01-2013
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Meter classification
4.1 Flange pressure ratings
4.2 Gas meter sizes, rangeability and connection diameter sizes
4.3 Connections and dimensions
4.4 Temperature ranges
5 Metrological performance requirements
5.1 General
5.2 Type testing
6 Design and material requirements
6.1 General
6.2 Robustness
6.3 Resistance to environmental conditions
6.4 Removable meter mechanisms
6.5 Indicating devices and accessories
6.6 Pressure and temperature tappings
6.7 Lubrication
7 Meter output
7.1 General
7.2 Indicating device
7.3 Pulse generator
7.4 Output shaft
7.5 Test element
8 Marking
8.1 General
8.2 Data plate
8.3 Direction of flow
8.4 Working position
8.5 Other connections
Annex A (normative) Test facility specifications
Annex B (normative) Perturbation testing
Annex C (informative) Recommendations for use
Annex D (normative) Individual factory testing
Annex E (normative) Metrological requirements and tests for
each meter prior to dispatch (Individual meter testing)
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