This International Standard gives different methods of measur-ing air flow r?te 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.
SIS SS-ISO 5221:1988 history
1988SIS SS-ISO 5221:1988 Air distribution and air diffusion — Rules to methods of measuring air flow r?te in an air handling duct