BS ISO 7714:2008

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
  4.1 According to accuracy of cumulative volume counter
  4.2 According to method of operation as a system of
      volumetric valves
5 Markings
6 Technical requirements
  6.1 General
  6.2 Threaded and flanged connections
  6.3 Metrological requirements
7 Mechanical, functional and accuracy tests
  7.1 General
  7.2 Accuracy of measuring devices
  7.3 Sampling and minimum acceptance requirements
  7.4 Test of resistance to hydrostatic pressure
  7.5 Test of manual opening and closing
  7.6 Tests of accuracy
  7.7 Pressure loss
  7.8 Endurance tests
8 Information to be supplied by the manufacturer
Annex A (informative) - Quality of irrigation water
Bibliography

Describes general requirements and test methods for volumetric valves able to automatically deliver preset quantities of water. It is applicable to valves actuated by pipeline pressure and flow alone, and which do not need any other, external, source of energy.