BS EN 14181:2004 Stationary source emissions. Quality assurance of automated measuring systems
BS EN 14181 specifies procedures for establishing quality assurance levels (QAL) for automated measuring systems (AMS) installed on industrial plants for the determination of the flue gas components and other flue gas parameters.
BS EN 14181 specifies:
— A procedure (QAL2) to calibrate the AMS and determine the variability of the measured values obtained by it, so as to demonstrate the suitability of the AMS for its application, following its installation
— A procedure (QAL3) to maintain and demonstrate the required quality of the measurement results during the normal operation of an AMS, by checking that the zero and span characteristics are consistent with those determined during QAL1
— A procedure for the annual surveillance tests (AST) of the AMS in order to evaluate (i) that it functions correctly and its performance remains valid and (ii) that its calibration function and variability remain as previously determined.
BS EN 14181 is for use after the AMS has been accepted according to the procedures specified in EN ISO 14956 (QAL1).
BS EN 14181 is restricted to quality assurance (QA) of the AMS, and does not include the QA of the data collection and recording system of the plant.
Contents of BS EN 14181:
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Principle
6 Calibration and validation of the AMS (QAL2
7 Ongoing quality assurance during operation (QAL3
8 Annual Surveillance Test (AST)
9 Documentation
Annex A (normative) QAL2 and AST functional test of AMS
Annex B (normative) Test of linearity
Annex C (normative) CUSUM Control Charts
Annex D (informative) Documentation
Annex E (informative) Example of calculation of the calibration function and of the variability test
Annex F (informative) Example of calculation of the standard deviation sAMS of the AMS at zero and span level
Annex G (informative) Example of using the calibration function and the variability test in the
AST
Annex H (informative) CUSUM charts field form (drift)
Bibliography
Also available:
PD CEN/TR 15983:2010 Stationary source emissions. Guidance on the application of EN 14181:2004