EN 14884:2022

SLOVENSKI STANDARD
01-marec-2023
Nadomešča:
SIST EN 14884:2006
Emisije nepremičnih virov - Določevanje celotnega živega srebra - Avtomatski
merilni sistemi
Stationary source emissions - Determination of total mercury - Automated measuring
systems
Emissionen aus stationären Quellen - Bestimmung der Gesamtquecksilber-
Konzentration - Automatische Messeinrichtungen
Émissions de sources fixes - Détermination de la concentration en mercure total -
Systèmes de mesurage automatisés
Ta slovenski standard je istoveten z: EN 14884:2022
ICS:
13.040.40 Emisije nepremičnih virov Stationary source emissions
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14884
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 13.040.40 Supersedes EN 14884:2005
English Version
Stationary source emissions - Determination of total
mercury - Automated measuring systems
Émissions de sources fixes - Détermination de la Emissionen aus stationären Quellen - Bestimmung der
concentration en mercure total - Systèmes de Gesamtquecksilber-Konzentration - Automatische
mesurage automatisés Messeinrichtungen
This European Standard was approved by CEN on 14 November 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14884:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 6
4.1 Symbols . 6
4.2 Abbreviations . 7
5 Principle . 8
6 Calibration and validation of the AMS (QAL2) . 8
6.1 General . 8
6.2 Functional test . 9
6.2.1 General . 9
6.2.2 Zero and span check (EN 14181:2014, A.7) . 9
6.2.3 Linearity test (EN 14181:2014, A.8 and Annex B) . 10
6.2.4 Response time (EN 14181:2014, A.11) . 10
6.2.5 Converter efficiency . 10
6.3 Parallel measurements with the SRM . 10
6.4 Data evaluation . 11
6.4.1 Preparation of data. 11
6.4.2 Selection of data points from automated SRM . 11
6.4.3 Establishing the calibration function . 11
6.5 Calibration function of the AMS and its validity . 11
6.6 Calculation of variability . 11
6.7 Test of variability . 12
6.8 QAL2 report . 12
7 Ongoing quality assurance during operation (QAL3) . 12
8 Annual Surveillance Test (AST) . 12
9 Documentation . 12
Annex A (informative)  Example of calculation of the calibration function and of the
variability test . 13
A.1 General . 13
A.2 Data evaluation . 13
A.2.1 General . 13
A.2.2 Calculation of measured values of the SRM at standard conditions . 15
A.2.3 Calibration function . 16
A.2.4 Calibrated values of AMS . 18
A.2.5 Conversion of data to standard conditions . 19
A.2.6 Valid calibration range . 20
A.2.7 Test of variability . 21
Annex B (informative) Significant technical changes . 24
Bibliography . 25

European foreword
This document (EN 14884:2022) has been prepared by Technical Committee CEN/TC 264 “Air quality”,
the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 14884:2005.
Annex B provides details of significant technical changes between this document and the previous
edition.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
This document describes the quality assurance procedures related to automated measuring systems
(AMS) for the determination of total mercury in waste gas, in order to meet the uncertainty requirements
on measured values given by regulations, e.g. EU Directives [1], national or other legislation.
This document is derived from EN 14181, which specifies general procedures for establishing quality
assurance levels (QAL) for AMS installed on industrial plants for the determination of the flue gas
components and other flue gas parameters. It amends EN 14181 and provides guidance specific to total
mercury measurements. It is only applicable in conjunction with EN 14181.
The calibration and validation of mercury AMS that measure the total vapour phase mercury content is
based on parallel measurements with the manual method described in EN 13211. The species of mercury
0 2+
(elemental Hg and oxidized Hg ) and the physical occurrence (gaseous, dust-bound or within droplets)
can vary significantly depending on the type of process to be monitored and this is taken into account
when implementing the SRM.
1 Scope
This document specifies requirements for the calibration and validation (QAL2), the ongoing quality
assurance during operation (QAL3) and the annual surveillance test (AST) of AMS used for monitoring
total mercury emissions from stationary sources to demonstrate compliance with an emission limit value
(ELV). This document is derived from EN 14181 and is only applicable in conjunction with EN 14181.
This document is applicable by direct correlation with the standard reference method (SRM) described
in EN 13211.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 13211, Air quality — Stationary source emissions — Manual method of determination of the
concentration of total mercury
EN 14181:2014, Stationary source emissions — Quality assurance of automated measuring systems
EN 17255-1, Stationary source emissions — Data acquisition and handling systems — Part 1: Specification
of requirements for the handling and reporting of data
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13211 and EN 14181 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
4 Symbols and abbreviations
4.1 Symbols
a intercept of the calibration function
ˆ
best estimate of a
a
b slope of the calibration function
ˆ
best estimate of
b
b
D difference between SRM value, y and calibrated AMS value ŷ
i i i
average of D
D
i
E emission limit value
h water vapour content (by volume)
i counter
N number of paired samples in parallel measurements
k test value for variability
v
o oxygen content in dry gas (by volume)
o oxygen reference value
s
p gauge pressure
P percentage
standard deviation of the differences D in parallel measurements
s
i
D
t Celsius
...