EN ISO 16911-2:2013

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and
5 Principle
6 Type testing, quality assurance level 1 data
7 Selection of automated measuring system location
8 Pre-investigation of flow profile
9 Calibration and validation of the automated measuring
   system (quality assurance level 2 and annual
   surveillance test)
10 Commissioning documentation
11 On-going quality assurance during operation (quality
   assurance level 3)
12 Assessment of uncertainty in volume flow rate
Annex A (informative) - Example of calculation of the
        calibration function (data from tests in
        Copenhagen and Wilhelmshaven)
Annex B (informative) - Flow profile characteristics
Annex C (informative) - Determination of measuring points
        and/or paths
Annex D (normative) - Treatment of a polynomial calibration
        function
Annex E (normative) - Values of k[v](N) and t[0,95(N - 1)]
Annex F (informative) - Example of a pre-investigation
        measurement
Annex G (informative) - Computational fluid dynamics issues
Annex H (informative) - The use of time of flight measurement
        instruments based on modulated laser light
Annex I (informative) - Relationship between this International
        Standard and the essential requirements of
        EU Directives
Bibliography

ISO 16911-2:2013 describes specific requirements for automated measuring system (AMS) flow monitoring. It is partly derived from EN 14181 which is the general document on the quality assurance of AMSs and is applicable in conjunction with that document.ISO 16911-2:2013 specifies conditions and criteria for the choice, mounting, commissioning and calibration of AMSs used for determining the volume flow rate from a source in ducted gaseous streams. ISO 16911-2:2013 is applicable by correlation with the manual reference methods described in ISO 16911-1.ISO 16911-2:2013 is primarily developed for monitoring emissions from waste incinerators and large combustion plants. From a technical point of view, it can be applied to other processes for which flow rate measurement is required with a defined and minimized uncertainty.