EN 12723 : 2000

Foreword
1 Scope
2 Normative references
3 General terms and definitions for pumps and installations
  3.1 List of symbols and quantities
  3.2 List of letters, figures and symbols used as subscripts
  3.3 General definitions
  3.4 Rates of flow
  3.5 Heights
  3.6 Heads
  3.7 Specific energy
  3.8 Cross-sectional areas
  3.9 Velocities
  3.10 Pressure
  3.11 Temperatures
  3.12 Powers
  3.13 Efficiencies
  3.14 Performance
  3.15 Speed and rotation
  3.16 Forces and loads
  3.17 Pumped liquid characteristics
  3.18 Miscellaneous terms
4 Special terms for rotodynamic pumps
  4.1 Rates of flow
  4.2 Heights
  4.3 Power
  4.4 Heads
  4.5 Cross-sectional areas
  4.6 Velocities
  4.7 Speed and rotation
  4.8 Performance
  4.9 Pump characterizing number
  4.10 Miscellaneous terms
5 Special terms for reciprocating and rotary positive
  displacement pumps
  5.1 Rates of flow
  5.2 Cross-sectional areas
  5.3 Velocities
  5.4 Pressure
  5.5 Volumes
  5.6 Forces and loads
  5.7 Efficiencies
  5.8 Miscellaneous terms
Annex A (informative) Figures for illustrating the
        definitions