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.
Текущий статус : WithdrawnДата публикации : 2008-07
Версия : 2
Технический комитет:Irrigation and drainage equipment and systems