Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
5 Measuring units
6 Construction requirements
7 Performance requirements
8 Test methods
9 Marking, installation and operating instructions
Annex A (informative) Use of threads for gas
connections in accordance with ISO 7-1:1994
and ISO 228-1:2000
Annex B (informative) Leak-tightness - volumetric
method
Annex C (informative) Leak-tightness - pressure
loss method
Annex D (informative) Conversion of the pressure loss
into leakage rate
Annex ZA (informative) Clauses of this European Standard
addressing essential requirements or other
provisions of EU directives