BS EN 88-1 : 2011

European foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Units of measurement and test conditions
6 Construction requirements
7 Performance
8 EMC/Electrical requirements
9 Marking, installation and operating instructions
Annex A (informative) - Gas connections in common
        use in the various countries
Annex B (informative) - Leak-tightness test - volumetric
        method
Annex C (informative) - Leak-tightness test - pressure loss
        method
Annex D (normative) - Conversion of pressure loss into
        leakage rate
Annex E (normative) - Electrical/electronic component fault
        modes
Annex F (normative) - Additional requirements for safety
        accessories and pressure accessories as defined in
        EC Directive 97/23/EC
Annex G (normative) - Materials for pressurized parts
Annex H (informative) - - Additional materials for pressurized
         parts
Annex I (normative) - Requirements for controls used in DC
         supplied gas burners and gas burning appliances
Annex AA (informative) - Typical pressure regulators and
          pressure regulator parts
Annex BB (informative) - Overview of requirements and test
          conditions, and examples of performance curves for
          pressure regulators
Annex ZA (informative) - Relationship between this
         European Standard and the Essential Requirements
         of EC Directive 2009/142/EC relating to appliances
         burning gaseous fuels
Bibliography

Defines the safety, construction and performance requirements for pressure regulators and pneumatic gas/air ratio pressure regulators (zero pressure regulators are included as a special type of pneumatic gas/air ratio pressure regulator), intended for use with gas burners, gas appliances and similar use, hereafter referred to as 'pressure regulators'.