Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Operating conditions
5 Materials
   5.1 General
   5.2 Metallic materials
   5.3 Non-metallic components
   5.4 Lubricants, sealants and adhesives
6 Design - General requirements
   6.1 General
   6.2 Seals
   6.3 Springs
   6.4 Threads
   6.5 Flanges
7 Design - Specific requirements
   7.1 Contents gauge
        7.1.1 Float gauge
        7.1.2 Rotary gauge
        7.1.3 Fixed level gauge
        7.1.4 Slip tube gauge
        7.1.5 Other contents gauges
   7.2 Dials for contents gauges
   7.3 Overfill protection device
8 Design testing
   8.1 General
   8.2 Over-torquing deformation test
   8.3 External tightness test
   8.4 Internal tightness test
   8.5 Endurance test
   8.6 Pressure strength test
   8.7 Stress cracking test
        8.7.1 General
        8.7.2 Mercurous nitrate immersion test
        8.7.3 Moist ammonia air stress cracking test
   8.8 Float pressure test
   8.9 Dimensional inspection
   8.10 Function test
   8.11 Accuracy assessment
9 Production testing and inspection
10 Marking
11 Documentation
Annex A (normative) - Float gauge flange and gasket
        dimensions
Annex B (normative) - Special low temperature requirements
        for gauges
Annex C (normative) - Production testing and inspection
Annex D (Informative) - Vibration Testing
Annex ZA (informative) - Clauses of this European Standard
         addressing essential requirements other provisions
         of EU Directives
Bibliography