ISO 10522:1993 Preview
Agricultural irrigation equipment -- Direct-acting pressure-regulating valves
This standard was last reviewed and confirmed in 2009. Therefore this version remains current.
Specifies construction and performance requirements and test methods for pressure regulators intended for operation in irrigation systems, with water at temperatures not exceeding 50 °C, which may contain fertilizers and chemicals of types and in concentrations commonly used. Applies to pressure regulators in nominal sizes up to and including 80 mm (3 in).
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