Table of Contents

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 airflow
        characteristics of valves with air release
        function
Annex B (normative) - Test method for airflow
        characteristics of valves with air intake
        function
Annex C (normative) - Test method for endurance
        of valves with air intake and/or air release
        functions
Bibliography

Abstract

Defines construction and performance requirements and test methods for air 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.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	TC 23
Supersedes	ISO/DIS 9635-4 : 60.00 (2014) ISO 9635-4 : 2006 ISO 11419 : 1997 ISO 9635 : 1990