BS EN ISO 16911-1:2013
Current
The latest, up-to-date edition.
Stationary source emissions. Manual and automatic determination of velocity and volume flow rate in ducts Manual reference method
Hardcopy , PDF
English
31-03-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Selection of monitoring approach
7 Measuring equipment
8 Performance characteristics and requirements
9 Measurement procedure
10 Calculation of results
11 Establishment of the uncertainty of results
12 Evaluation of the method
Annex A (normative) Measurement of velocity using
differential pressure based techniques
Annex B (normative) Vane anemometer
Annex C (normative) Tracer gas dilution method
determination of volume flow rate and
average velocity
Annex D (normative) Transit time tracer gas method
determination of average velocity
Annex E (normative) Calculation of flue gas volume
flow rate from energy consumption
Annex F (informative) Example of uncertainty budget
established for velocity and volume flow
rate measurements by Pitot tube
Annex G (informative) Description of validation studies
Annex H (informative) Differential pressure measurement
Annex I (informative) The use of time of flight measurement
instruments based on modulated laser light
Annex J (informative) Relationship between this International
Standard and the essential requirements of EU
Directives
Bibliography
Defines a method for periodic determination of the axial velocity and volume flow rate of gas within emissions ducts and stacks.
Committee |
EH/2/1
|
DevelopmentNote |
Supersedes 11/30239461 DC. (03/2013)
|
DocumentType |
Standard
|
Pages |
96
|
PublisherName |
British Standards Institution
|
Status |
Current
|
Supersedes |
ENISO16911-1 specifies a method for periodic determination of the axial velocity and volume flow rate of gas within emissions ducts and stacks. It is applicable for use in circular or rectangular ducts with measurement locations meeting the requirements of EN15259. Minimum and maximum duct sizes are driven by practical considerations of the measurement devices described within ENISO16911-1.
ENISO16911-1 requires all flow measurements to have demonstrable metrological traceability to national or international primary standards.
To be used as a standard reference method, the user is required to demonstrate that the performance characteristics of the method are equal to or better than the performance criteria defined in ENISO16911-1 and that the overall uncertainty of the method, expressed with a level of confidence of 95 %, is determined and reported. The results for each method defined in ENISO16911-1 have different uncertainties within a range of 1% to 10% at flow velocities of 20m/s.
Methods further to these can be used provided that the user can demonstrate equivalence, based on the principles of CEN/TS14793.[10]
Standards | Relationship |
ISO 16911-1:2013 | Identical |
EN ISO 16911-1:2013 | Identical |
EN 15267-3:2007 | Air quality - Certification of automated measuring systems - Part 3: Performance criteria and test procedures for automated measuring systems for monitoring emissions from stationary sources |
BS 5857-1.4:1980 | Methods for measurement of fluid flow in closed conduits, using tracers. Measurement of water flow Transit time method using non-radioactive tracers |
BS 5857-2.4:1980 | Methods for measurement of fluid flow in closed conduits, using tracers. Measurement of gas flow Transit time method using radioactive tracers |
ISO 1928:2009 | Solid mineral fuels Determination of gross calorific value by the bomb calorimetric method and calculation of net calorific value |
CEN/TS 14793:2005 | Stationary source emission - Intralaboratory validation procedure for an alternative method compared to a reference method |
ISO 14956:2002 | Air quality — Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty |
ISO 1170:2013 | Coal and coke Calculation of analyses to different bases |
EN 14789:2017 | Stationary source emissions - Determination of volume concentration of oxygen - Standard reference method: Paramagnetism |
EN 15259:2007 | Air quality - Measurement of stationary source emissions - Requirements for measurement sections and sites and for the measurement objective, plan and report |
EN 13284-1:2017 | Stationary source emissions - Determination of low range mass concentration of dust - Part 1: Manual gravimetric method |
EN 14181:2014 | Stationary source emissions - Quality assurance of automated measuring systems |
EN 437:2003+A1:2009 | Test gases - Test pressures - Appliance categories |
EN 12952-15:2003 | Water-tube boilers and auxiliary installations - Part 15: Acceptance tests |
EN 14790:2017 | Stationary source emissions - Determination of the water vapour in ducts - Standard reference method |
ISO 20988:2007 | Air quality Guidelines for estimating measurement uncertainty |
ISO 10780:1994 | Stationary source emissions — Measurement of velocity and volume flowrate of gas streams in ducts |
ISO 3966:2008 | Measurement of fluid flow in closed conduits Velocity area method using Pitot static tubes |
ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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