ISO 5220:1981
Air distribution and air diffusion; Aerodynamic testing and rating of constant and variable dual or single duct boxes and single duct units

Standard No.

ISO 5220:1981

Release Date

1981

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 5220:1981/Amd 1:1984

Latest

ISO 5220:1981/Amd 1:1984

Scope

Specifies methods for the aerodynamic testing and rating of assemblies suitable for use with air distribution systems operating at high or low velocity and high or low pressure. The tests cover: a) leakage past a closed valve; b) casing leakage; c) characteristics of the constant or variable flow rate controller; d) degree of temperature mixing achieved by a dual duct box; e) flow rate characteristics for single duct units.

ISO 5220:1981 history

• 1970 ISO 5220:1981/Amd 1:1984
• 1981 ISO 5220:1981 Air distribution and air diffusion; Aerodynamic testing and rating of constant and variable dual or single duct boxes and single duct units