ISO 9644:2008


Note: Latest version: ISO 9644:2018

Existing or new amendments and versions must be purchased separately.



ISO 9644:2008 specifies a test method for determining the pressure loss in agricultural irrigation valves under steady-state conditions when water flows through them. The scope and accuracy of the valve performance specifications presented will assist agricultural irrigation system designers in comparing pressure losses through various types of valves.

Products specifications

  • Standard from ISO
  • Published:
  • Withdrawn:
  • Period for objection until:
  • Edition: 2
  • Document type: IS
  • Pages
  • Publisher: ISO
  • Distributor: ISO
  • ICS: 65.060.35
  • International TC: ISO/TC 23/SC 18

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