1 Scope
This International Standard describes the operating principles and the most important performance characteristics of automated flow-measuring systems for determining the volume flowrate in the ducts of stationary sources.
Procedures to determine the performance characteristics of automated volume flow-measuring systems are also contained in this International Standard.
The performance characteristics are general and not limited to specific measurement principles or instrument systems.
NOTE Commercial systems which use the operating principles described and meet the requirements of this International Standard are readily available.