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EN 14625:2012

Current
Current

The latest, up-to-date edition.

Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry
Published date

22-08-2012

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms
5 Principle
6 Sampling
7 Analyser equipment
8 Type approval of ultraviolet photometric ozone analysers
9 Field operation and ongoing quality control
10 Expression of results
11 Test reports and documentation
Annex A (normative) - Test of lack of fit
Annex B (informative) - Sampling equipment
Annex C (informative) - Ultraviolet photometric analyser
Annex D (informative) - Manifold testing equipment
Annex E (normative) - Type approval
Annex F (informative) - Calculation of uncertainty in
        field operation at the hourly alert threshold value
Annex G (informative) - Calculation of uncertainty in
        field operation at the 8-hour target value
Annex H (informative) - Significant technical changes
Bibliography

This European Standard specifies a continuous measurement method for the determination of the concentrations of ozone present in ambient air based on the ultraviolet photometric measuring principle. This standard describes the performance characteristics and sets the relevant minimum criteria required to select an appropriate ultraviolet photometric analyser by means of type approval tests. It also includes the evaluation of the suitability of an analyser for use in a specific fixed site so as to meet the data quality requirements as specified in Annex I of Directive 2008/50/EC [1] and requirements during sampling, calibration and quality assurance for use.The method is applicable to the determination of the con¬centration of ozone present in ambient air up to 500 µg/m3. This concentration range represents the certification range for ozone for the type approval test.NOTE 1Other ranges may be used depending on the levels present in ambient air.NOTE 2When the standard is used for other purposes than for measurements required by Directive 2008/50/EC, the ranges and uncertainty requirements may not apply.The method covers the determination of ambient air concentrations of ozone in areas classified as rural, urban and urban-background areas. The results are expressed in µg/m3 (at 20 C and 101,3 kPa).NOTE 3500 µg/m3 of O3 corresponds to 250 nmol/mol of O3 at 20 C and 101,3 kPa.This standard contains information for different groups of users.Clauses 5 to 7 and Annexes B and C contain general information about the principles of ozone measurement by ultraviolet photometric analyser and sampling equipment.Clause 8 and Annex E are specifically directed towards test houses and laboratories that perform type-approval testing of ozone analysers. These sections contain information about:-Type-approval test conditions, test procedures and test requirements;-Analyser performance requirements;-Evaluation of the type-approval test results;-Evaluation of the uncertainty of the measurement results of the ozone analyser based on the type-approval test results.Clauses 9 to 11 and Annexes F and G are directed towards monitoring networks performing the practical measurements of ozone in ambient air. These sections contain information about:-Initial installation of the analyser in the monitoring network and acceptance testing;-Ongoing quality assurance/quality control;-Calculation and reporting of measurement results;-Evaluation of the uncertainty of measurement results under practical monitoring conditions.

Committee
CEN/TC 264
DevelopmentNote
Supersedes PREN 14625. (09/2012)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

Standards Relationship
NBN EN 14625 : 2012 Identical
NS EN 14625 : 2012 Identical
SN EN 14625:2012 Identical
NF EN 14625 : 2013 Identical
DIN EN 14625:2012-12 Identical
UNE-EN 14625:2013 Identical
NEN EN 14625 : 2012 Identical
PN EN 14625 : 2013 Identical
BS EN 14625:2012 Identical
UNI EN 14625 : 2012 Identical
I.S. EN 14625:2012 Identical
DIN EN 14625 E : 2012 Identical

S.R. CEN/TS 16645:2014 AMBIENT AIR - METHOD FOR THE MEASUREMENT OF BENZ[A]ANTHRACENE, BENZO[B]FLUORANTHENE, BENZO[J]FLUORANTHENE, BENZO[K]FLUORANTHENE, DIBENZ[A,H]ANTHRACENE, INDENO[1,2,3-CD]PYRENE AND BENZO[GHI]PERYLENE
UNI EN 15267-1 : 2009 AIR QUALITY - CERTIFICATION OF AUTOMATED MEASURING SYSTEMS - PART 1: GENERAL PRINCIPLES
ONORM EN 15267-1 : 2009 AIR QUALITY - CERTIFICATION OF AUTOMATED MEASURING SYSTEMS - PART 1: GENERAL PRINCIPLES
VDI 2441:2016-05 Process gas and waste gas cleaning by cold plasma - Barrier discharge, corona discharge, UV radiation
I.S. EN 15267-1:2009 AIR QUALITY - CERTIFICATION OF AUTOMATED MEASURING SYSTEMS - PART 1: GENERAL PRINCIPLES
EN 15267-1:2009 Air quality - Certification of automated measuring systems - Part 1: General principles
PD CEN/TS 16645:2014 Ambient air. Method for the measurement of benz[a]anthracene, benzo[b]fluoranthene, benzo[j]fluoranthene, benzo[k]fluoranthene, dibenz[a,h]anthracene, indeno[1,2,3-cd]pyrene and benzo[ghi]perylene
UNI CEN/TS 16645 : 2014 AMBIENT AIR - METHOD FOR THE MEASUREMENT OF BENZ[A]ANTHRACENE, BENZO[B]FLUORANTHENE, BENZO[J]FLUORANTHENE, BENZO[K]FLUORANTHENE, DIBENZ[A,H]ANTHRACENE, INDENO[1,2,3-CD]PYRENE AND BENZO[GHI]PERYLENE
BS EN 15267-1:2009 Air quality. Certification of automated measuring systems General principles
DIN EN 15267-1:2009-07 Air quality - Certification of automated measuring systems - Part 1: General principles
CEN/TS 16645:2014 Ambient air - Method for the measurement of benz[a]anthracene, benzo[b]fluoranthene, benzo[j]fluoranthene, benzo[k]fluoranthene, dibenz[a,h]anthracene, indeno[1,2,3-cd]pyrene and benzo[ghi]perylene

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
ISO 13964:1998 Air quality — Determination of ozone in ambient air — Ultraviolet photometric method
ISO 6145-7:2009 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 7: Thermal mass-flow controllers
ISO 14956:2002 Air quality Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty
EN ISO 6145-7:2010 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 7: Thermal mass-flow controllers (ISO 6145-7:2009)
EN 15267-2:2009 Air quality - Certification of automated measuring systems - Part 2: Initial assessment of the AMS manufacturer’s quality management system and post certification surveillance for the manufacturing process
ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
EN ISO 20988:2007 Air quality - Guidelines for estimating measurement uncertainty (ISO 20988:2007)
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
EN ISO 14956 : 2002 AIR QUALITY - EVALUATION OF THE SUITABILITY OF A MEASUREMENT PROCEDURE BY COMPARISON WITH A REQUIRED MEASUREMENT UNCERTAINTY
ISO 9001:2015 Quality management systems — Requirements
ENV 13005 : DRAFT 1999 GUIDE TO THE EXPRESSION OF UNCERTAINTY IN MEASUREMENT
VDI 2453 Blatt 2:2002-10 Gaseous air pollution measurement - Measurement of concentration of nitrogen monoxide and nitrogen dioxide - Calibration of NO/NO chemiluminescence analysers using gas phase titration
ISO 15337:2009 Ambient air Gas phase titration Calibration of analysers for ozone
EN ISO 6145-6:2017 Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 6: Critical flow orifices (ISO 6145-6:2017)
ISO 20988:2007 Air quality Guidelines for estimating measurement uncertainty
ISO 6145-6:2017 Gas analysis — Preparation of calibration gas mixtures using dynamic methods — Part 6: Critical flow orifices
EN 15267-1:2009 Air quality - Certification of automated measuring systems - Part 1: General principles

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