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EVS-EN ISO 16911-1:2013

Stationary source emissions - Determination of velocity and volume flow rate in ducts - Part 1: Manual reference method (ISO 16911-1:2013)

General information
Valid from 02.04.2013
Base Documents
ISO 16911-1:2013; EN ISO 16911-1:2013
Directives or regulations
None
Standard history
Status
Date
Type
Name
02.04.2013
Main
EN ISO 16911-1 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 EN 15259. Minimum and maximum duct sizes are driven by practical considerations of the measurement devices described within EN ISO 16911-1. EN ISO 16911-1 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 EN ISO 16911-1 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 EN ISO 16911-1 have different uncertainties within a range of 1 % to 10 % at flow velocities of 20 m/s. Methods further to these can be used provided that the user can demonstrate equivalence, based on the principles of CEN/TS 14793.[1]
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