National foreword
National Annex NA (informative) - Bibliography
Foreword to EN ISO 2503:2009
European foreword to EN ISO 2503:2009/A1:2015
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Design requirements
6 Physical performance and operating characteristics
7 Marking
8 Instructions for use
9 Type-test procedure
Annex A (informative) - Pressure regulators
Annex B (informative) - Operating principles of
pressure regulators with flow-metering devices
Bibliography