ISO 5221 1st Edition, January 1, 1984
Air Distribution and Air Diffusion - Rules to Methods of Measuring Air Flow Rate in an Air Handling Duct
Additional Comments: ENGLISH * W/D NO S/S
Published By:International Organization for Standardization (ISO)
Scope and field of application
This International Standard gives different methods of measuring air flow rate in an air handling duct which, without the need of calibration, meet various specific requirements in the field of air distribution and air diffusion.
For the purpose of this International Standard an “air handling duct” is defined as a tight section of straight ductwork such that the general conditions for device installation can be met. The cross-section of the duct may be circular or, excluding for device 14, rectangular.