1 General
  1.1 Scope
  1.2 Normative references
2 Definitions
  2.1 Gas properties
  2.2 Types of instruments
  2.3 Sensors
  2.4 Supply of gas to instrument
  2.5 Signals and alarms
  2.6 Times
  2.7 Miscellaneous
3 General requirements
  3.1 Introduction
  3.2 Construction
4 Test methods
  4.1 Introduction
  4.2 General requirements for tests
  4.3 Normal conditions for tests
  4.4 Test methods
5 Field calibration kit
6 Information for use
Annex A (normative) Flammability limits (i.e. LFL and UFL)
                    of some flammable gases and vapours
Annex B (informative) Determination of time of response
Annex C (informative) Bibliography
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications