EN 14902:2005
(Main)Ambient air quality - Standard method for the measurement of Pb, Cd, As and Ni in the PM10 fraction of suspended particulate matter
Ambient air quality - Standard method for the measurement of Pb, Cd, As and Ni in the PM10 fraction of suspended particulate matter
This European Standard specifies a method for the determination of particulate lead (Pb), cadmium (Cd), arsenic (As) and nickel (Ni) in ambient air that can be used in the framework of the European Council Directive on Ambient Air Quality Assessment and Management [1] and the 1st [2] and 4th [3] Daughter Directives. Performance requirements with which the method has to comply are specified in this European Standard. The performance characteristics of the method were determined in comparative field validation tests carried out at four European locations (see [4]).
This European Standard specifies a method for sampling of Pb, Cd, As and Ni as part of the PM10 aerosol, microwave digestion of the samples and analysis by graphite furnace atomic absorption spectrometry or by inductively coupled plasma (quadrupole) mass spectrometry.
This European Standard is applicable for the measurement of Pb, Cd, As and Ni as part of the PM10 aerosol fraction in the concentration ranges listed in Table 1.
Table 1 - Working ranges of the method in ng/m³
From To
Pb 1 4 000
Cd 0,1 50
As 0,5 350
Ni 2 100
The actual lower limits of the working ranges depend upon the variability of the laboratory filter blank (5.3.1). The lower limits of the working ranges given in Table 1 are expected values based upon performance achieved in the field validation tests. Similarly the upper limits of the working ranges have been set arbitrarily based upon the maximum daily values measured during the field validation tests. The method can be applied to higher concentrations provided the PM10 collection characteristics of the sampler are not compromised.
Außenluftbeschaffenheit - Standardisiertes Verfahren zur Bestimmung von Pb/Cd/As/Ni als Bestandteil der PM10-Fraktion des Schwebstaubes
Diese Europäische Norm legt ein Verfahren zur Bestimmung von partikelgebundenem Blei (Pb), Cadmium (Cd), Arsen (As) und Nickel (Ni) in der Außenluft fest, das im Rahmen der Europäischen Ratsrichtlinie über die Beurteilung und Kontrolle der Luftqualität [1] und der ersten [2] bzw. vierten [3] Tochterrichtlinie eingesetzt werden kann. Verfahrensanforderungen, denen dieses Verfahren genügen muss, sind in dieser Europäischen Norm spezifiziert. Die Verfahrenskenngrößen wurden in vergleichenden Feldvalidierungstests an vier europäischen Messorten bestimmt (siehe [4]).
Diese Europäische Norm legt ein Probenahmeverfahren für Pb, Cd, As und Ni als Bestandteil des PM10-Aerosols, einen Mikrowellenaufschluss der Probe und die Analyse mittels Graphitrohr-Atomabsorptionsspektrometrie oder mittels Massenspektrometrie mit induktiv gekoppeltem Plasma (ICP-MS) fest.
Diese Europäische Norm gilt für die Messung von Pb, Cd, As und Ni als Bestandteil der PM10-Aerosolfraktion in den in Tabelle 1 aufgeführten Konzentrationsbereichen.
Tabelle 1 - Arbeitsbereiche des Verfahrens
von bis
Pb 1 4000
Cd 0,1 50
As 0,5 350
Ni 2 100
Die tatsächlichen unteren Grenzen der Arbeitsbereiche werden von der Variabilität der Laborfilterblindwerte (5.3.1) bestimmt. Die in Tabelle 1 angegebenen unteren Grenzen der Arbeitsbereiche sind Erwartungswerte, die auf den Ergebnissen der Feldvalidierungstests basieren. Entsprechend wurden die oberen Grenzen der Arbeitsbereiche orientierend an den maximalen Tageswerten während der Feldvalidierungstests festgelegt. Das Verfahren kann auch für höhere Konzentrationen eingesetzt werden sofern die PM10-Sammelcharakteristik des Probenahmegerätes nicht beeinträchtigt ist.
Qualité de l'air ambiant - Méthode normalisée de mesure du plomb, du cadmium, de l'arsenic et du nickel dans la fraction MP10 de matière particulaire en suspension
La présente Norme européenne spécifie une méthode pour le dosage du plomb (Pb), du cadmium (Cd), de l'arsenic (As) et du nickel (Ni) dans l'air ambiant, qui peut être utilisée dans le cadre de la directive du Conseil de l'Union Européenne 96/62/CE [1], relative à l'évaluation et à la gestion de la qualité de l'air, et des première [2] et quatrième [3] directives filles. Les exigences de performance auxquelles la méthode doit se conformer sont spécifiées dans la présente Norme européenne. Les caractéristiques de performance de la méthode ont été établies par des essais comparatifs de validation réalisés sur le terrain en quatre lieux distincts en Europe (voir [4]).
La présente Norme européenne spécifie une méthode de prélèvement du plomb, du cadmium, de l'arsenic et du nickel contenu dans la fraction MP10 de l'aérosol, de digestion par micro-ondes des échantillons et d'analyse par spectrométrie d'absorption atomique en four graphite ou par spectrométrie de masse (quadripolaire) couplée à un plasma induit.
La présente Norme européenne est applicable à la mesure du plomb, du cadmium, de l'arsenic et du nickel, dans la fraction MP10 de l'aérosol dans les plages de concentrations indiquées dans le Tableau 1.
Tableau 1 - Plages de concentrations de la méthode en ng/m3
De À
Pb 1 4 000
Cd 0,1 50
As 0,5 350
Ni 2 100
Les limites inférieures des plages de concentration dépendent de la variabilité du filtre vierge de laboratoire (5.3.1). Les limites inférieures indiquées dans le Tableau 1 sont les valeurs escomptées sur la base des performances obtenues lors des essais de validation de terrain. De même, les limites supérieures des plages de concentrations ont été fixées arbitrairement sur la base des valeurs journalières maximales mesurées lors des essais de validation de terrain. La méthode est applicable à des concentrations supérieures à condition que les caractéristiques de collecte des MP10 du préleveur ne soient pas compromises.
Kakovost zunanjega zraka – Standardna metoda za določevanje Pb, Cd, As in Ni v frakciji PM10 lebdečih delcev
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2005
Kakovost zunanjega zraka – Standardna metoda za določevanje Pb, Cd, As in Ni v
frakciji PM10 lebdečih delcev
Ambient air quality - Standard method for the measurement of Pb, Cd, As and Ni in the
PM10 fraction of suspended particulate matter
Außenluftbeschaffenheit - Standardisiertes Verfahren zur Bestimmung von Pb/Cd/As/Ni
als Bestandteil der PM10-Fraktion des Schwebstaubes
Qualité de l'air ambiant - Méthode normalisée de mesure du plomb, du cadmium, de
l'arsenic et du nickel dans la fraction MP10 de matiere particulaire en suspension
Ta slovenski standard je istoveten z: EN 14902:2005
ICS:
13.040.20 Kakovost okoljskega zraka Ambient atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 14902
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 13.040.20
English version
Ambient air quality - Standard method for the measurement of
Pb, Cd, As and Ni in the PM10 fraction of suspended particulate
matter
Qualité de l'air ambiant - Méthode normalisée pour la Außenluftbeschaffenheit - Standardisiertes Verfahren zur
mesure de Pb, Cd, As et Ni dans la fraction MP10 de la Bestimmung von Pb/Cd/As/Ni als Bestandteil der PM10
matière particulaire en suspension Fraktion des Schwebstaubes
This European Standard was approved by CEN on 27 June 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14902:2005: E
worldwide for CEN national Members.
Contents
.................................................................................................................................................. Page
Foreword .3
1 Scope .4
2 Normative references.5
3 Terms, definitions and abbreviations .5
4 Principle.8
5 Requirements .9
6 Reagents and gases.10
7 Apparatus .11
8 Sampling.12
9 Analysis .14
10 Quality control.22
11 Calculation of results.23
12 Estimation of the measurement uncertainty of the method.26
13 Performance characteristics determined in field tests .27
14 Reporting of results .32
Annex A (informative) Examples of closed vessel microwave digestion procedures .33
Annex B (informative) Typical laboratory filter blank values as determined in the field validation tests.35
Annex C (informative) Analytical interferences.36
Annex D (informative) Approach to uncertainty estimation used in the field validation tests .40
Annex E (normative) List of minimum QA / QC procedures.46
Annex F (informative) Procedure for the determination of the uncertainty of the method for an
individual laboratory .48
Annex ZA (informative) Relationship with EU Directives .53
Bibliography .54
Foreword
This European Standard (EN 14902:2005) 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 February 2006, and conflicting national standards shall be withdrawn at the latest
by February 2006.
This European Standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association (see Annex ZA).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
1 Scope
This European Standard specifies a method for the determination of particulate lead (Pb), cadmium (Cd), arsenic
(As) and nickel (Ni) in ambient air that can be used in the framework of the European Council Directive on Ambient
st th
Air Quality Assessment and Management [1] and the 1 [2] and 4 [3] Daughter Directives. Performance
requirements with which the method has to comply are specified in this European Standard. The performance
characteristics of the method were determined in comparative field validation tests carried out at four European
locations (see [4]).
This European Standard specifies a method for sampling of Pb, Cd, As and Ni as part of the PM10 aerosol,
microwave digestion of the samples and analysis by graphite furnace atomic absorption spectrometry or by
inductively coupled plasma (quadrupole) mass spectrometry.
This European Standard is applicable for the measurement of Pb, Cd, As and Ni as part of the PM10 aerosol
fraction in the concentration ranges listed in Table 1.
Table 1 — Working ranges of the method in ng/m³
From To
Pb 1 4 000
Cd
0,1 50
As 0,5 350
Ni 2 100
The actual lower limits of the working ranges depend upon the variability of the laboratory filter blank (5.3.1). The
lower limits of the working ranges given in Table 1 are expected values based upon performance achieved in the
field validation tests. Similarly the upper limits of the working ranges have been set arbitrarily based upon the
maximum daily values measured during the field validation tests. The method can be applied to higher
concentrations provided the PM10 collection characteristics of the sampler are not compromised.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
EN 12341:1998, Air quality – Determination of the PM10 fraction of suspended particulate matter – Reference
method and field test procedure to demonstrate reference equivalence of measurement methods.
ENV 13005:1999, Guide to the expression of uncertainty in measurement
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purpose of this European Standard, the following terms and definitions apply.
3.1.1
analysis
all operations carried out after sample preparation to determine the amount or concentration of the metals or
metalloid of interest present in the sample
3.1.2
blank solution
solution prepared from a laboratory filter blank or a field filter blank by the process of sample dissolution
NOTE A laboratory filter blank solution or a field filter blank solution might need to be subjected to further operations, e.g.
dilution and/or addition of an internal standard(s), if such operations are applied to the sample solutions in order to produce test
solutions that are ready for analysis.
3.1.3
calibration blank solution
calibration solution prepared without addition of stock standard solution or working standard solution, for which the
concentration of the analyte(s) of interest is considered to be zero
3.1.4
calibration solution
solution used for calibration of the analytical instrument, containing the analyte(s) of interest at (a) suitable
concentration(s), prepared by dilution of the stock standard solution(s) or the working standard solution(s)
NOTE The technique of matrix-matching is normally used when preparing calibration solutions.
3.1.5
certified reference material
reference material, in which one or more of property values are certified by a technically valid procedure,
accompanied by or traceable to a certificate or other documentation that is issued by a certifying body [5]
3.1.6
field filter blank
filter that is taken through the same procedure as a sample, except that no air is drawn through it. It is transported
to the sampling site, mounted in the sampling unit, dismounted, returned to the laboratory and worked up in the
same way as a sample
Equal to ISO Guide 30 (GUM) Geneva 1993.
3.1.7
internal standard solution
solution added to sample, blank and calibration solutions to correct for instrumental fluctuations during analysis,
containing (a) suitable element(s) at (a) suitable concentration(s)
3.1.8
instrumental detection limit
lowest amount of an analyte that is detectable using an instrument, as determined by repeated measurements of a
reagent blank
3.1.9
laboratory filter blank
unused filter that does not leave the laboratory and is taken through the same analytical procedure as a sample.
This filter is taken from the same batch as used for sampling
3.1.10
limit value
level fixed on the basis of scientific knowledge, with the aim of avoiding, preventing or reducing harmful effects on
human health and/or the environment as a whole, to be attained within a given period and not to be exceeded once
attained
3.1.11
matrix interference
non-spectral interference
matrix effect
interference of a non-spectral nature caused by a difference between the matrix of the calibration and test solutions
3.1.12
matrix-matching
technique, used to minimise the effect of matrix interferences on analytical results, that involves preparation of
calibration solutions in which the concentrations of acids and other major solutes are matched with those in the test
solutions
3.1.13
method detection limit
lowest amount of an analyte that is detectable using the method, as determined by analysis of laboratory filter
blanks
3.1.14
PM10
target specification for sampling the thoracic particles
[EN 12341:1998]
3.1.15
PM10 reference sampler
by convention, a sampling instrument that possesses the required performance characteristics, in order to assess
the PM 10 mass concentration
[EN 12341:1998]
3.1.16
PM10 sampler
sampling instrument whose performance has been demonstrated to be equivalent to a PM 10 reference sampler
3.1.17
quality control solution
solution that is analysed together with the sample solutions to provide information on the repeatability of the
analytical method, results for which are plotted on a quality control chart to verify that a method is performing
satisfactorily
3.1.18
quantification limit
lowest amount of an analyte that is quantifiable with a given confidence level using the method, as determined by
analysis of laboratory filter blanks
3.1.19
reagent blank solution
solution that contains all the reagents used during the analysis of the sample, but without the sample and filter
matrix
3.1.20
repeatability (of results of measurements)
closeness of the agreement between the results of successive measurements of the same measurand carried out
under the same conditions of measurement [6]
3.1.21
reproducibility (of results of measurements)
closeness of the agreement between the results of measurements of the sam
...
SLOVENSKI STANDARD
01-december-2005
.DNRYRVW]XQDQMHJD]UDND±6WDQGDUGQDPHWRGD]DGRORþHYDQMH3E&G$VLQ1LY
IUDNFLML30OHEGHþLKGHOFHY
Ambient air quality - Standard method for the measurement of Pb, Cd, As and Ni in the
PM10 fraction of suspended particulate matter
Außenluftbeschaffenheit - Standardisiertes Verfahren zur Bestimmung von Pb/Cd/As/Ni
als Bestandteil der PM10-Fraktion des Schwebstaubes
Qualité de l'air ambiant - Méthode normalisée de mesure du plomb, du cadmium, de
l'arsenic et du nickel dans la fraction MP10 de matiere particulaire en suspension
Ta slovenski standard je istoveten z: EN 14902:2005
ICS:
13.040.20 Kakovost okoljskega zraka Ambient atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 14902
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 13.040.20
English version
Ambient air quality - Standard method for the measurement of
Pb, Cd, As and Ni in the PM10 fraction of suspended particulate
matter
Qualité de l'air ambiant - Méthode normalisée pour la Außenluftbeschaffenheit - Standardisiertes Verfahren zur
mesure de Pb, Cd, As et Ni dans la fraction MP10 de la Bestimmung von Pb/Cd/As/Ni als Bestandteil der PM10
matière particulaire en suspension Fraktion des Schwebstaubes
This European Standard was approved by CEN on 27 June 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14902:2005: E
worldwide for CEN national Members.
Contents
.................................................................................................................................................. Page
Foreword .3
1 Scope .4
2 Normative references.5
3 Terms, definitions and abbreviations .5
4 Principle.8
5 Requirements .9
6 Reagents and gases.10
7 Apparatus .11
8 Sampling.12
9 Analysis .14
10 Quality control.22
11 Calculation of results.23
12 Estimation of the measurement uncertainty of the method.26
13 Performance characteristics determined in field tests .27
14 Reporting of results .32
Annex A (informative) Examples of closed vessel microwave digestion procedures .33
Annex B (informative) Typical laboratory filter blank values as determined in the field validation tests.35
Annex C (informative) Analytical interferences.36
Annex D (informative) Approach to uncertainty estimation used in the field validation tests .40
Annex E (normative) List of minimum QA / QC procedures.46
Annex F (informative) Procedure for the determination of the uncertainty of the method for an
individual laboratory .48
Annex ZA (informative) Relationship with EU Directives .53
Bibliography .54
Foreword
This European Standard (EN 14902:2005) 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 February 2006, and conflicting national standards shall be withdrawn at the latest
by February 2006.
This European Standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association (see Annex ZA).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
1 Scope
This European Standard specifies a method for the determination of particulate lead (Pb), cadmium (Cd), arsenic
(As) and nickel (Ni) in ambient air that can be used in the framework of the European Council Directive on Ambient
st th
Air Quality Assessment and Management [1] and the 1 [2] and 4 [3] Daughter Directives. Performance
requirements with which the method has to comply are specified in this European Standard. The performance
characteristics of the method were determined in comparative field validation tests carried out at four European
locations (see [4]).
This European Standard specifies a method for sampling of Pb, Cd, As and Ni as part of the PM10 aerosol,
microwave digestion of the samples and analysis by graphite furnace atomic absorption spectrometry or by
inductively coupled plasma (quadrupole) mass spectrometry.
This European Standard is applicable for the measurement of Pb, Cd, As and Ni as part of the PM10 aerosol
fraction in the concentration ranges listed in Table 1.
Table 1 — Working ranges of the method in ng/m³
From To
Pb 1 4 000
Cd
0,1 50
As 0,5 350
Ni 2 100
The actual lower limits of the working ranges depend upon the variability of the laboratory filter blank (5.3.1). The
lower limits of the working ranges given in Table 1 are expected values based upon performance achieved in the
field validation tests. Similarly the upper limits of the working ranges have been set arbitrarily based upon the
maximum daily values measured during the field validation tests. The method can be applied to higher
concentrations provided the PM10 collection characteristics of the sampler are not compromised.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
EN 12341:1998, Air quality – Determination of the PM10 fraction of suspended particulate matter – Reference
method and field test procedure to demonstrate reference equivalence of measurement methods.
ENV 13005:1999, Guide to the expression of uncertainty in measurement
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purpose of this European Standard, the following terms and definitions apply.
3.1.1
analysis
all operations carried out after sample preparation to determine the amount or concentration of the metals or
metalloid of interest present in the sample
3.1.2
blank solution
solution prepared from a laboratory filter blank or a field filter blank by the process of sample dissolution
NOTE A laboratory filter blank solution or a field filter blank solution might need to be subjected to further operations, e.g.
dilution and/or addition of an internal standard(s), if such operations are applied to the sample solutions in order to produce test
solutions that are ready for analysis.
3.1.3
calibration blank solution
calibration solution prepared without addition of stock standard solution or working standard solution, for which the
concentration of the analyte(s) of interest is considered to be zero
3.1.4
calibration solution
solution used for calibration of the analytical instrument, containing the analyte(s) of interest at (a) suitable
concentration(s), prepared by dilution of the stock standard solution(s) or the working standard solution(s)
NOTE The technique of matrix-matching is normally used when preparing calibration solutions.
3.1.5
certified reference material
reference material, in which one or more of property values are certified by a technically valid procedure,
accompanied by or traceable to a certificate or other documentation that is issued by a certifying body [5]
3.1.6
field filter blank
filter that is taken through the same procedure as a sample, except that no air is drawn through it. It is transported
to the sampling site, mounted in the sampling unit, dismounted, returned to the laboratory and worked up in the
same way as a sample
Equal to ISO Guide 30 (GUM) Geneva 1993.
3.1.7
internal standard solution
solution added to sample, blank and calibration solutions to correct for instrumental fluctuations during analysis,
containing (a) suitable element(s) at (a) suitable concentration(s)
3.1.8
instrumental detection limit
lowest amount of an analyte that is detectable using an instrument, as determined by repeated measurements of a
reagent blank
3.1.9
laboratory filter blank
unused filter that does not leave the laboratory and is taken through the same analytical procedure as a sample.
This filter is taken from the same batch as used for sampling
3.1.10
limit value
level fixed on the basis of scientific knowledge, with the aim of avoiding, preventing or reducing harmful effects on
human health and/or the environment as a whole, to be attained within a given period and not to be exceeded once
attained
3.1.11
matrix interference
non-spectral interference
matrix effect
interference of a non-spectral nature caused by a difference between the matrix of the calibration and test solutions
3.1.12
matrix-matching
technique, used to minimise the effect of matrix interferences on analytical results, that involves preparation of
calibration solutions in which the concentrations of acids and other major solutes are matched with those in the test
solutions
3.1.13
method detection limit
lowest amount of an analyte that is detectable using the method, as determined by analysis of laboratory filter
blanks
3.1.14
PM10
target specification for sampling the thoracic particles
[EN 12341:1998]
3.1.15
PM10 reference sampler
by convention, a sampling instrument that possesses the required performance characteristics, in order to assess
the PM 10 mass concentration
[EN 12341:1998]
3.1.16
PM10 sampler
sampling instrument whose performance has been demonstrated to be equivalent to a PM 10 reference sampler
3.1.17
quality control solution
solution that is analysed together with the sample solutions to provide information on the repeatability of the
analytical method, results for which are plotted on a quality control chart to verify that a method is performing
satisfactorily
3.1.18
quantification limit
lowest amount of an analyte that is quantifiable with a given confidence level using the method, as determined by
analysis of laboratory filter blanks
3.1.19
reagent blank solution
solution that contains all the reagents used during the analysis of the sample, but without the sample and filter
matrix
3.1.20
repeatability (of results of measurements)
closeness of the agreement between the results of successive measurements of the same measurand carried out
under the same conditions of measurement [6]
3.1.21
reproducibility (of results of measurements)
closeness of the agreement between the results of measureme
...
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