CGA 12.2 : 0

Part I Construction
     1.1 Scope
     1.2 General
     1.3 Propane supply lines
     1.4 Propane filters
     1.5 Hydrostatic relief valves
     1.6 Solenoid valves
     1.7 Vaporizers (converters)
     1.8 Carburettors and mixers
     1.9 Automatic liquid level control valves
     1.10 Float type liquid level sensor
     1.11 Filler valves
     1.12 Withdrawal valves
     1.13 Fixed liquid level gauges (vent valves)
     1.14 Instructions
     1.15 Marking
Part II
     2.1 General
     2.2 External leakage
     2.3 Seat leakage
     2.4 Hydrostatic strength
     2.5 Corrosion resistance
     2.6 Oxygen aging
     2.7 Endurance
     2.8 Low temperature operation
     2.9 Mercurous nitrate immersion
     2.10 Float crushing test
     2.11 Deformation
     2.12 Weak section strength test
     2.13 Dielectric strength
     2.14 Abnormal electrical voltages
     2.15 Non-metallic synthetic material immersion
          tests
     2.16 Vibration
Appendix A Classification of markings
Appendix B Marking material adhesion and legibility
Appendix C SI (Metrix) symbols