NS EN 1074-6 : 2ED 2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Design requirements
5 Performance requirements
  5.1 Mechanical strength
      5.1.1 Resistance to internal pressure of the shell and of
            all pressure containing components
      5.1.2 Resistance of the obturator to differential pressure
      5.1.3 Resistance of hydrants to bending and to any force
            applied above the ground level
      5.1.4 Resistance of hydrants to operating loads
  5.2 Leak-tightness
      5.2.1 Leak-tightness of the shell and of all pressure
            containing components
      5.2.2 Seat tightness
      5.2.3 Maximum operating torque (MOT) for operation and
            seat-tightness
      5.2.4 Leak-tightness of gearboxes to external pressure
  5.3 Hydraulic characteristic
  5.4 Resistance to disinfection products
  5.5 Endurance
      5.5.1 Endurance of the hydrant
      5.5.2 Endurance of the non-return device
  5.6 Performance of the draining system
6 Conformity assessment
  6.1 General
  6.2 Type tests
  6.3 Control of production process and quality system
7 Marking
8 Packaging
Annex A (normative) Test method for the resistance of hydrants to
        bending
        A.1 General
        A.2 Test procedure
Annex B (normative) Test method for the resistance of pillar hydrants
        to a force applied above ground level
        B.1 General
        B.2 Test procedure for pillar hydrants not equipped with a
            breaking system
        B.3 Test procedure for pillar hydrants equipped with a
            breaking system
Annex C (normative) Test method for the operation of hydrants
        C.1 General
        C.2 Test procedure
Annex D (normative) Test method for the endurance of hydrants
        D.1 General
        D.2 Test procedure
Annex E (normative) Test method for the performance of draining system
        E.1 General
        E.2 Test procedure
Bibliography

Specifies the minimum fitness for purpose requirements for hydrants to be used in, or connected to, water supply pipe systems, above or below ground, carrying water intended for human consumption.