BS ISO 9635-1:2014

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Design requirements
5 Performance requirements
6 Conformity assessment
7 Marking
8 Packaging
Annex A (normative) - Test method for resistance
        to internal pressure of shell and all
        pressure-containing components
Annex B (normative) - Test method for resistance
        of obturator to differential pressure
Annex C (normative) - Test method for resistance
        of valves to bending
Annex D (normative) - Minimal test method for
        watertightness to external pressure of shell
        and all pressure-containing components
Annex E (normative) - Test method for resistance to
        chemicals and fertilizers
Annex F (normative) - Test method for water or air
        tightness of valve body
Annex G (normative) - Test method for seat tightness
Bibliography

Defines construction and performance requirements and test methods for valves, intended for operation in irrigation systems with water at temperatures not exceeding 60 degrees C, which can contain fertilizers and other chemicals of the types and concentrations used in agriculture.

This part of ISO9635 specifies construction and performance requirements and test methods for valves, intended for operation in irrigation systems with water at temperatures not exceeding 60°C, which can contain fertilizers and other chemicals of the types and concentrations used in agriculture.

It is applicable to irrigation valves of 8mm diameter or greater, designed to operate in the fully open and fully closed positions, but which can also operate for extended time periods in any intermediate position.