SIST EN 13205-1:2014
(Main)Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 1: General requirements
Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 1: General requirements
EN 13205-1 specifies performance requirements that are specific to aerosol samplers, primarily inhalable, thoracic and respirable aerosol samplers. These performance requirements, which include conformity with the EN 481 sampling conventions, are applicable only to the process of sampling the airborne particles from the air, not to the process of analysing particles collected by the process of sampling. Although analysis of samples collected in the course of testing is usually necessary in order to evaluate the sampler performance, the specified test methods ensure that analytical errors are kept very low during testing and do not contribute significantly to the end result. This part of EN 13205 specifies how the performance of aerosol measuring procedures is assessed with respect to the general requirements of EN 482, through the combination of errors arising in the sampling, sample transportation/storage and sample preparation/analysis stages. This part of EN 13205 is applicable to all samplers used for the health-related sampling of particles in workplace air.
Exposition am Arbeitsplatz - Beurteilung der Leistungsfähigkeit von Sammlern für die Messung der Konzentration luftgetragener Partikel - Teil 1: Allgemeine Anforderungen
Diese Europäische Norm legt Anforderungen an die Leistungsfähigkeit fest, die für Aerosolsammler, d. h. in erster Linie für Sammler für die einatembare, thorakale und alveolengängige Fraktion von Aerosolen, spezifisch sind. Diese Leistungsanforderungen, welche die Übereinstimmung mit den Probenahme-konventionen nach EN 481 mit einschließen, gelten nur für den Vorgang der Probenahme der luftgetragenen Partikel aus der Luft und nicht für den Vorgang der Analyse der Partikel, die während der Probenahme gesammelt wurden. Obwohl die Analyse der im Verlauf der Prüfung gesammelten Proben im Allgemeinen erforderlich ist, um die Leistungsfähigkeit des Sammlers zu bewerten, stellen die festgelegten Prüfverfahren sicher, dass Analysefehler während der Prüfung sehr niedrig gehalten werden und nicht signifikant zum Endergebnis beitragen.
Dieser Teil von EN 13205 legt fest, wie die Leistungsfähigkeit von Messverfahren für Aerosole durch Verknüpfung der Fehler, die in den Phasen der Probenahme, des Transports bzw. der Lagerung der Probe sowie bei der Probenvorbereitung/-analyse auftreten, im Hinblick auf die allgemeinen Anforderungen nach EN 482 beurteilt wird.
Dieser Teil von EN 13205 gilt für alle Sammler, die für die gesundheitsbezogene Probenahme von Partikeln aus der Luft am Arbeitsplatz eingesetzt werden.
Dieser Teil von EN 13205 gilt nicht für die Bestimmung von Analysefehlern und damit verbundenen Faktoren (zum Beispiel die systematische Abweichung, die Präzision und die Nachweisgrenze des Analyseverfahrens). Falls der Aerosolsammler die Verwendung einer externen Pumpe (anstatt einer eingebauten Pumpe) erfordert, unterliegt die Pumpe nicht den Anforderungen dieses Teils von EN 13205.
Exposition sur les lieux de travail - Évaluation des performances des dispositifs de prélèvement pour le mesurage des concentrations de particules en suspension dans l'air - Partie 1: Exigences générales
La présente Norme européenne spécifie des exigences de performance spécifiques des dispositifs de prélèvement d'aérosols, principalement ceux destinés au prélèvement des fractions inhalable, thoracique et alvéolaire. Ces exigences, qui comprennent notamment la conformité aux conventions de prélèvement de l'EN 481, s'appliquent uniquement au processus de prélèvement des particules en suspension contenues dans l'air, et non pas au processus d'analyse des particules collectées dans le cadre du processus de prélèvement. L'analyse des échantillons collectés au cours des essais est généralement nécessaire pour évaluer les performances du dispositif de prélèvement ; toutefois, les méthodes d'essai spécifiées permettent de conserver un très faible taux d'erreurs analytiques au cours des essais, qui n'ont pas beaucoup d'incidence sur le résultat final.
La présente partie de l'EN 13205 spécifie la manière dont les performances des procédures de mesure des aérosols sont évaluées vis-à-vis des exigences générales de l'EN 482, au moyen d'une combinaison d'erreurs survenant lors du prélèvement, du transport/stockage des échantillons et des étapes de préparation/analyse des échantillons.
La présente partie de l'EN 13205 s'applique à tous les dispositifs de prélèvement utilisés pour le prélèvement, à des fins sanitaires, des particules présentes sur les lieux de travail.
La présente partie de l'EN 13205 ne s'applique pas à la détermination des erreurs d'analyse et aux facteurs qui y sont associés (par exemple le biais, la fidélité et la limite de détection de la méthode d'analyse). Lorsque le dispositif de prélèvement d'aérosols nécessite l'utilisation d'une pompe externe (plutôt qu'intégrée), cette pompe n'est pas soumise aux exigences de la présente partie de l'EN 13205.
Izpostavljenost na delovnem mestu - Ocenjevanje lastnosti merilnikov za merjenje koncentracij lebdečih delcev - 1. del: Splošne zahteve
Standard EN 13205-1 določa zahteve učinkovitosti, ki so značilne za vzorce aerosolov, predvsem vzorce inhalabilnih, torakalnih in respirabilnih aerosolov. Te zahteve učinkovitosti, ki vključujejo skladnost z dogovorjenim vzorčenjem iz standarda EN 481, veljajo samo za postopke vzorčenja lebdečih delcev iz zraka, ne pa za postopek analize delcev, ki so zbrani v postopku vzorčenja. Čeprav je analiza vzorcev, zbranih med preskušanjem, običajno potrebna za ocenjevanje učinkovitosti merilnika, določene preskusne metode zagotavljajo, da je pojav napak pri analizi med preskušanjem zelo majhen in da nimajo velikega vpliva na končni rezultat. Ta del standarda EN 13205 določa, kako se ocenjuje lastnosti merilnikov za merjenje aerosolov glede na splošne zahteve iz standarda EN 482, prek kombinacije napak, ki se pojavijo med vzorčenjem, prevozom/shranjevanjem vzorcev in pripravo/analizo vzorcev. Ta del standarda EN 13205 velja za vse merilnike, ki se uporabljajo za vzorčenje delcev v zraku, ki vplivajo na zdravje na delovnem mestu.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Exposition am Arbeitsplatz - Beurteilung der Leistungsfähigkeit von Sammlern für die Messung der Konzentration luftgetragener Partikel - Teil 1: Allgemeine AnforderungenExposition sur les lieux de travail - Évaluation des performances des dispositifs de prélèvement pour le mesurage des concentrations de particules en suspension dans l'air - Partie 1: Exigences généralesWorkplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 1: General requirements13.040.30Kakovost zraka na delovnem mestuWorkplace atmospheresICS:Ta slovenski standard je istoveten z:EN 13205-1:2014SIST EN 13205-1:2014en,fr,de01-september-2014SIST EN 13205-1:2014SLOVENSKI
STANDARDSIST EN 13205:20021DGRPHãþD
SIST EN 13205-1:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13205-1
June 2014 ICS 13.040.30 Supersedes EN 13205:2001English Version
Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 1: General requirements
Exposition sur les lieux de travail - Évaluation des performances des dispositifs de prélèvement pour le mesurage des concentrations de particules en suspension dans l'air - Partie 1: Exigences générales
Exposition am Arbeitsplatz - Beurteilung der Leistungsfähigkeit von Sammlern für die Messung der Konzentration luftgetragener Partikel - Teil 1: Allgemeine Anforderungen This European Standard was approved by CEN on 7 May 2014.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13205-1:2014 ESIST EN 13205-1:2014
EN 13205-1:2014 (E) 2 Contents Page
Foreword . 3
Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 3.1 Terms related to sampling and transportation . 7 3.2 Terms related to performance . 11 4 Symbols and abbreviations . 12 4.1 Symbols . 12 4.1.1 Latin . 12 4.1.2 Greek . 13 5 Requirements . 14 5.1 Summary of requirements . 14 5.2 Expanded uncertainty for an aerosol sampler . 14 5.3 Expanded uncertainty for a measuring procedure . 15 6 Test methods . 16 6.1 General . 16 6.2 Critical review in order to delimit the performance test . 19 6.3 Overview of test methods . 20 7 Types of evaluation . 21 7.1 Sampler evaluation . 21 7.2 Evaluation of a measuring procedure . 21 8 Instructions for use . 21 9 Marking, quality control . 22 9.1 Marking . 22 9.2 Quality control . 22 Annex A (normative)
Calculation of expanded uncertainty for a measuring procedure . 23 Bibliography . 31
SIST EN 13205-1:2014
EN 13205-1:2014 (E) 3 Foreword This document (EN 13205-1:2014) has been prepared by Technical Committee CEN/TC 137 “Assessment of workplace exposure to chemical and biological agents”, 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 December 2014 and conflicting national standards shall be withdrawn at the latest by December 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document together with EN 13205-2, CEN/TR 13205-3, EN 13205-4, EN 13205-5 and EN 13205-6 will supersede EN 13205:2001. EN 13205, Workplace exposure — Assessment of sampler performance for measurement of airborne particle concentrations, consists of the following parts: — Part 1: General requirements (the present document); — Part 2: Laboratory performance test based on determination of sampling efficiency; — Part 3: Analysis of sampling efficiency data [Technical Report]; — Part 4: Laboratory performance test based on comparison of concentrations; — Part 5: Aerosol sampler performance test and sampler comparison carried out at workplaces; — Part 6: Transport and handling tests. Significant technical changes from the previous edition, EN 13205:2001: — This part of EN 13205 is based on Clauses 1 to 8 of the previous edition, EN 13205:2001. — The scope has been limited to aerosol samplers, and the current version of the standard is not (directly) applicable to other types of aerosol instruments. — The list of definitions has been expanded and many definitions are now given in EN 1540, Workplace exposure — Terminology. The method of calculating the uncertainty of a sampler or a measuring procedure has been revised in order to comply with ENV 13005. The concept of “overall uncertainty” is no longer used, instead the concept of “expanded uncertainty” is used. — The list of Requirements (Table 1) has been reformulated/changed for some attributes. The current version of the standard envisages two different types of tests: A test of a candidate aerosol sampler and a test of a complete measuring method based on a candidate sampler, respectively. Two flow charts, one for each type of test, have been included to better demonstrate the relation between the different parts of EN 13205. — Annex A has been added on how to calculate the expanded uncertainty for a measuring procedure based on aerosol sampling but also consisting of several other stages. This is a complete revision and expansion of Annex E in the previous version. A clause on symbols has been included. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, SIST EN 13205-1:2014
EN 13205-1:2014 (E) 4 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13205-1:2014
EN 13205-1:2014 (E) 5 Introduction EN 481 defines sampling conventions for the particle size fractions to be collected from workplace atmospheres in order to assess their impact on human health. Conventions are defined for the inhalable, thoracic and respirable aerosol fractions. These conventions represent target specifications for aerosol samplers, giving the ideal sampling efficiency as a function of particle aerodynamic diameter. In general, the sampling efficiency of real aerosol samplers will deviate from the target specification, and the aerosol mass collected will therefore differ from that which an ideal sampler would collect. In addition, the behaviour of real samplers is influenced by many factors such as external wind speed. In many cases there is an interaction between the influence factors and fraction of the airborne particle size distribution of the environment in which the sampler is used. EN 482 contains general performance requirements for methods used for determining the concentrations of chemical agents in workplace atmospheres. These performance requirements include maximum values of expanded uncertainty (a combination of random and non-random measurement uncertainty) achievable under prescribed laboratory conditions for the methods to be used. The requirements of EN 482 apply to a complete measuring procedure, a combination of the stages consisting of sampling, sample transport/storage and sample preparation/analysis. This part of EN 13205 gives performance requirements for samplers for the inhalable, thoracic or respirable aerosol fractions. Requirements for the aerosol sampler and transport of loaded collection samplers are stated. Furthermore, the method for calculating the expanded uncertainty for a measuring procedure based on aerosol sampling is described. Different test procedures and types of evaluation are described in the other parts of EN 13205 in order to enable application of EN 13205 to a wide variety of instruments. In detail, three different performance tests for sampled concentration and a transport test of loaded collection substrates are described. The three tests differ in the amount of information obtained by the test and its corresponding cost. The first test method determines the sampling efficiency curve of a candidate sampler, the second compares concentrations sampled from three laboratory test atmospheres by a candidate sampler and a (previously) validated sampler, and the third method compares concentrations sampled from a specific workplace by a candidate sampler and a (previously) validated sampler. Additionally a method for determining equivalence between aerosol samplers at specific workplaces and an alternative handling test are presented. EN 13205 (all parts) enables manufacturers and users of aerosol samplers to adopt a consistent approach to sampler validation, and provide a framework for the assessment of sampler performance with respect to EN 481 and EN 482. It is the responsibility of the manufacturer of aerosol samplers to inform the user of the sampler performance under the laboratory conditions1) specified in other parts of this European Standard. It is the responsibility of the user to ensure that the actual conditions of intended use are within what the manufacturer specifies as acceptable conditions according to the performance test.
1) The inhalable convention is undefined for particle sizes in excess of 100 µm or for wind speeds greater than 4 m/s. The tests required to assess performance are therefore limited to these conditions. Should such large particle sizes or wind speeds actually exist at the time of sampling, it is possible that different samplers meeting this part of EN 13205 give different results. SIST EN 13205-1:2014
EN 13205-1:2014 (E) 6 1 Scope This European Standard specifies performance requirements that are specific to aerosol samplers, primarily inhalable, thoracic and respirable aerosol samplers. These performance requirements, which include conformity with the EN 481 sampling conventions, are applicable only to the process of sampling the airborne particles from the air, not to the process of analysing particles collected by the process of sampling. Although analysis of samples collected in the course of testing is usually necessary in order to evaluate the sampler performance, the specified test methods ensure that analytical errors are kept very low during testing and do not contribute significantly to the end result. This part of EN 13205 specifies how the performance of aerosol measuring procedures is assessed with respect to the general requirements of EN 482, through the combination of errors arising in the sampling, sample transportation/storage and sample preparation/analysis stages. This part of EN 13205 is applicable to all samplers used for the health-related sampling of particles in workplace air. This part of EN 13205 is not applicable to the determination of analytical errors and factors related to them (for example the bias, precision and limit of detection of the analytical method). Where the aerosol sampler requires the use of an external (rather than integral) pump, the pump is not subject to the requirements of this part of EN 13205. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 481, Workplace atmospheres — Size fraction definitions for measurement of airborne particles EN 482:2012, Workplace exposure — General requirements for the performance of procedures for the measurement of chemical agents EN 1540:2011, Workplace exposure — Terminology EN 13205-2:2014, Workplace exposure — Assessment of sampler performance for measurement of airborne particle concentrations — Part 2: Laboratory performance test based on determination of sampling efficiency CEN/TR 13205-3, Workplace exposure — Assessment of sampler performance for measurement of airborne particle concentrations — Part 3: Analysis of sampling efficiency data EN 13205-4:2014, Workplace exposure — Assessment of sampler performance for measurement of airborne particle concentrations — Part 4: Laboratory performance test based on comparison of concentrations EN 13205-5:2014, Workplace exposure — Assessment of sampler performance for measurement of airborne particle concentrations — Part 5: Aerosol sampler performance test and sampler comparison carried out at workplaces EN 13205-6:2014, Workplace exposure — Assessment of sampler performance for measurement of airborne particle concentrations — Part 6: Transport and handling tests EN 13890, Workplace exposure — Procedures for measuring metals and metalloids in airborne particles — Requirements and test methods SIST EN 13205-1:2014
EN 13205-1:2014 (E) 7 EN 14530, Workplace atmospheres — Determination of diesel particulate matter — General requirements EN ISO 13137, Workplace atmospheres — Pumps for personal sampling of chemical and biological agents — Requirements and test methods (ISO 13137) ISO 15767, Workplace atmospheres — Controlling and characterizing uncertainty in weighing collected aerosols ISO 21438 (all parts), Workplace atmospheres — Determination of inorganic acids by ion chromatography ISO 24095, Workplace air — Guidance for the measurement of respirable crystalline silica 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 1540 and the following apply. 3.1 Terms related to sampling and transportation NOTE In addition to the terms and definitions given by entry numbers 3.1.1 to 3.1.21, in particular, the following general terms, terms related to the physical and chemical process of air sampling and terms related to the analytical method of EN 1540 are used in this document as well: respirable fraction, inhalable fraction, sampling efficiency, thoracic fraction, measuring procedure, analysis, analytical method, measurand and occupational exposure limit value. 3.1.1 airborne particles fine matter, in solid or liquid form, dispersed in air Note 1 to entry: Smoke, fume, mist and fog consist of airborne particles. [SOURCE: EN 1540:2011, 2.2.3] 3.1.2 aerosol airborne particles and the gas (and vapour) mixture in which they are suspended Note 1 to entry: The airborne particles can be in or out of equilibrium with their own vapours. Note 2 to entry: In occupational hygiene, the carrier gas is air, possibly contaminated by other gases and vapours. [SOURCE: EN 1540:2011, 2.2.4, modified – Note 2 to entry has been added.] 3.1.3 aerosol sampler (airborne) particle sampler (airborne) particulate sampler sampler that is used to transport airborne particles to a collection substrate Note 1 to entry: The term aerosol sampler is commonly used although it is not in line with the definition of aerosol given in EN 1540:2011, 2.2.4. Note 2 to entry: The transport can be either active or passive. Note 3 to entry: For the purpose of this document, a sampler is not a pump or an air mover, but can include either of them in specific cases. [SOURCE: EN 1540:2011, 3.2.1.5, modified – Note 3 to entry has been added.] SIST EN 13205-1:2014
EN 13205-1:2014 (E) 8 3.1.4 candidate sampler any aerosol sampler that can be used to collect airborne particles in order to determine their concentration and whose performance is subjected to performance tests Note 1 to entry: A candidate sampler that meets the performance criteria will be termed a validated sampler. 3.1.5 collected sample product of the process of air sampling that consists of the collected chemical and/or biological agents only Note 1 to entry: For the purpose of this document the collected sample comprises of airborne particles collected and retained on the sampling substrate for subsequent analysis. [SOURCE: EN 1540:2011, 3.1.2, modified – Note 1 to entry has been added.] 3.1.6 collection substrate sampling substrate collection medium sampling medium medium on which airborne chemical and/or biological agents are collected for subsequent analysis Note 1 to entry: Filters, polyurethane foams and sampling cassettes are examples of collection substrates for airborne particles. Note 2 to entry: Activated carbon, silica gel and reagent impregnated filters are examples of collection substrates for gases and vapours. Note 3 to entry: Agar media are examples of collection substrates for bioaerosols. Note 4 to entry: The 25-mm or 37-mm plastic filter cassette often used for “total dust” sampling (with gravimetric analysis) in either its closed-face or open-face version is not part of the substrate in the definition above, since it is not weighed. On the other hand, some analytical methods for elements in samples collected with 25-mm or 37-mm plastic filter cassette require that particles deposited onto the internal surfaces of the filter cassette upstream of the filter to be included in the analysis, and in this case the internal surfaces of the filter cassette is part of the collection substrate. [SOURCE: EN 1540:2011, 3.3.6, modified – Note 4 to entry has been added.] 3.1.7 collection efficiency efficiency of collection and retention of sampled particles by the collection substrate Note 1 to entry: The collection efficiency can, for example be influenced by the amount of particles deposited in the collection substrate. Note 2 to entry: The collection efficiency (of a collection substrate) should not be confused with the sampling efficiency (of a sampler). For the definition of sampling efficiency see EN 1540:2011, 3.3.10. SIST EN 13205-1:2014
EN 13205-1:2014 (E) 9 3.1.8 inhalable fraction mass fraction of total airborne particles which is inhaled through the nose and mouth Note 1 to entry: The inhalable fraction is specified in EN 481. Note 2 to entry: The inhalable fraction depends on the speed and direction of the air movement, on breathing rate and other factors. [SOURCE: EN 1540:2011, 2.3.1.1, modified – Note 2 to entry has been added.] 3.1.9 inhalable sampler aerosol sampler that is used to collect the inhalable fraction Note 1 to entry: An inhalable sampler collects the inhalable fraction of airborne particles, as defined in EN 481, with a performance as stipulated in this document. [SOURCE: EN 1540:2011, 3.2.1.5.1, modified – Note 1 to entry has been added.] 3.1.10 nominal flow rate design flow rate recommended by the sampler manufacturer or measuring procedure 3.1.11 particle aerodynamic diameter diameter of a sphere of 1 g cm−3 density with the same terminal settling velocity in calm air as the particle, under the prevailing conditions of temperature, pressure and relative humidity Note 1 to entry: The particle aerodynamic diameter depends on the size, density and shape of the particle. Note 2 to entry: For particles of aerodynamic diameter less than 0,5 µm, the particle thermodynamic diameter should be used instead of the particle aerodynamic diameter. [SOURCE: EN 1540:2011, 2.3.2, modified – Note 2 to entry has been added.] 3.1.12 sampler inlet efficiency for each particle aerodynamic diameter the ratio of aerosol concentration passing through the sampler inlet to the corresponding total airborne particle concentration Note 1 to entry: The sampler inlet efficiency is the product of the aspiration efficiency, which characterises the aerodynamic behaviour of the sampler orifice, and the size-dependent effects of particle bounce and losses both inside and outside the inlet. The inlet losses can, for some samplers, also depend on external factors such as wind speed and aerosol size distribution. 3.1.13 penetration internal penetration for each particle aerodynamic diameter the ratio of the sampling efficiency to the sampler inlet efficiency Note 1 to entry: The penetration describes the efficiency with which particles pass through the stage of internal aerodynamic separation, as for example in foams, cyclones, impactors or elutriators. 3.1.14 personal sampler sampler, attached to a person, that collects gases, vapours or airborne particles in the breathing zone to determine exposure to chemical and/or biological agents SIST EN 13205-1:2014
EN 13205-1:2014 (E) 10 Note 1 to entry: For the purpose of this document “agent” means airborne particles. [SOURCE: EN 1540:2011, 3.2.2, modified – Note 1 to entry has been added.] 3.1.15 respirable sampler aerosol sampler that is used to collect the respirable fraction Note 1 to entry: A respirable sampler collects the respirable fraction or airborne particles, as defined in EN 481, with a performance as stipulated in this document. [SOURCE: EN 1540:2011, 3.2.1.5.3 modified – Note 1 to entry has been added.] 3.1.16 sampler specimen sampler individual single individual of a given type of aerosol sampler 3.1.17 sampling cassette cassette mounted inside a sampler, designed in such a way that its collection substrate consists of all its interior surfaces (bounding the air-stream with sampled particles), and usually containing a filter or another suitable collection substrate 3.1.18 sampling method part of the measuring procedure that describe the overall process of sampling, including sampler preparation and sample transport 3.1.19 sampling process physical mechanisms by which particles are selectively aspirated into a sampler inlet, graded by means of inertial or other forces, transported to the collection substrate or to other internal surfaces, or lost from the collection substrate Note 1 to entry: The losses from the collection substrate referred to here regard losses occurring during sampling and not during transport and/or storage. 3.1.20 thoracic sampler aerosol sampler that is used to collect the thoracic fraction Note 1 to entry: A thoracic sampler collects the thoracic fraction or airborne particles, as defined in EN 481, with a performance as stipulated in this document. [SOURCE: EN 1540:2011, 3.2.1.5.2 modified – Note 1 to entry has been added.] 3.1.21 validated sampler sampler that has been tested under specified conditions to comply with a required performance Note 1 to entry: This European Standard distinguishes between three types of validated samplers. See below. Note 2 to entry: A validated sampler which has previously been tested using the methods described in EN 13205–2 to comply with the requirements given in EN 13205–1 is designated as “validated sampler (type A)”. In a performance test according to EN 13205–2, the sampling efficiency curve of the candidate sampler will be determined as a function of particle size (and possibly other influencing factors). SIST EN 13205-1:2014
EN 13205-1:2014 (E) 11 Note 3 to entry: A validated sampler which has previously been tested using the methods described in EN 13205–4 to comply with the requirements given in EN 13205–1 is designated as “validated sampler (type B)”. In a performance test according EN 13205–4, the concentration sampled by the candidate sampler will be compared with the concentration sampled by a validated reference sampler, for at least three test aerosols. Note 4 to entry: A validated sampler which has previously been tested using the methods described in EN 13205–5 to comply with the requirements given in EN 13205–1 is designated as “validated sampler (type C)”. In a performance test according EN 13205–5, the concentration sampled by the candidate sampler at a workplace will be compared with the concentration sampled by a validated reference sampler. 3.2 Terms related to performance NOTE In addition to the terms and definitions listed below, in particular, the following terms of EN 1540 related to (method) performance are used in this document as well: random uncertainty, non-random uncertainty, standard uncertainty, combined standard uncertainty, expanded uncertainty, uncertainty (of measurement), coverage factor, measuring range and precision. 3.2.1 bias difference between the expectation of a test result or measurement result and a true value Note 1 to entry: Bias is the total non-random error as contrasted to random error. There can be one or more non-random error components contributing to the bias. A larger systematic difference from the true value is reflected by a larger bias value. Note 2 to entry: In practice, the accepted reference value is substituted for the true value. The accepted reference value (for definition see ISO 3534-2) can be, for example, the certified value of a reference material, the concentration of a standard test atmosphere or the target value of an interlaboratory comparison. Note 3 to entry: In EN 13205–2, CEN/TR 13205–3, EN 13205–4 and EN 13205–5 the true value of the concentration of a chemical agent in air will be the concentration calculated to be sampled by an ideal sampler with a sampling efficiency identical to the sampling convention or sampled by a validated sampler. Note 4 to entry: The definition has originally been taken from ISO 3534-2:2006, 3.3.2. [SOURCE: EN 1540:2011, 5.3.1 modified – Notes 3 and 4 to entry have been added.] 3.2.2 other influence variable variables/parameters (other than particle size, flow rate and sampler individual variability) which in the Critical review were considered to possibly have such an influence on the sampling efficiency that their effect need to be deter
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SLOVENSKI STANDARD
oSIST prEN 13205-1:2012
01-november-2012
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Workplace exposure - Assessment of sampler performance for measurement of airborne
particle concentrations - Part 1: General requirements
Exposition am Arbeitsplatz - Bewertung der Leistungsfähigkeit von Sammlern für die
Messsung der Konzentration luftgetragener Partikel - Teil 1: Allgemeine Anforderungen
Ta slovenski standard je istoveten z: prEN 13205-1
ICS:
13.040.30 Kakovost zraka na delovnem Workplace atmospheres
mestu
oSIST prEN 13205-1:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13205-1:2012
EUROPEAN STANDARD
DRAFT
prEN 13205-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2012
ICS 13.040.30 Will supersede EN 13205:2001
English Version
Workplace exposure - Assessment of sampler performance for
measurement of airborne particle concentrations - Part 1:
General requirements
Exposition am Arbeitsplatz - Beurteilung der
Leistungsfähigkeit von Sammlern für die Messung der
Konzentration luftgetragener Partikel - Teil 1: Allgemeine
Anforderungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 137.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13205-1:2012: E
worldwide for CEN national Members.
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Contents Page
Foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Symbols and abbreviations . 10
5 Requirements . 12
5.1 Summary of requirements . 12
5.2 Expanded uncertainty for an aerosol sampler . 13
5.3 Expanded uncertainty for a measuring procedure . 14
6 Test methods . 14
6.1 General . 14
6.2 Critical review in order to delimit the performance test . 17
6.3 Overview of test methods . 18
7 Types of evaluation . 19
7.1 Sampler evaluation . 19
7.2 Evaluation of a measuring procedure . 19
8 Instructions for use . 19
9 Marking, quality control . 20
9.1 Marking . 20
9.2 Quality control . 20
Annex A (normative) Calculation of expanded uncertainty for a measuring procedure . 21
Bibliography . 29
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Foreword
This document (prEN 13205-1:2012) has been prepared by Technical Committee CEN/TC 137 “Assessment
of workplace exposure to chemical and biological agents”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document together with prEN 13205-2, FprCEN/TR 13205-3, prEN 13205-4, prEN 13205-5 and
prEN 13205-6 supersedes prEN 13205:2010 and will supersede EN 13205:2001.
This part 1 of EN 13205 Workplace exposure – Assessment of sampler performance for measurement of
airborne particle concentrations belongs to a series of documents, the other parts of which are the following:
Part 2: Laboratory performance test based on determination of sampling efficiency;
Part 3: Analysis of sampling efficiency data;
Part 4: Laboratory performance test based on comparison of concentrations;
Part 5: Aerosol sampler performance test and sampler comparison carried out at workplaces;
Part 6: Transport and handling tests.
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Introduction
EN 481 defines sampling conventions for the particle size fractions to be collected from workplace
atmospheres in order to assess their impact on human health. Conventions are defined for the inhalable,
thoracic and respirable aerosol fractions. These conventions represent target specifications for aerosol
samplers, giving the ideal sampling efficiency as a function of particle aerodynamic diameter. In general, the
sampling efficiency of real aerosol samplers will deviate from the target specification, and the aerosol mass
collected will therefore differ from that which an ideal sampler would collect. In addition, the behaviour of real
samplers is influenced by many factors such as external wind speed. In many cases there is an interaction
between the influence factors and fraction of the airborne size distribution of the environment in which the
sampler is used.
EN 482 contains general performance requirements for methods used for determining the concentrations of
chemical agents in workplace atmospheres. These performance requirements include maximum values of
expanded uncertainty (a combination of random and non-random measurement uncertainty) achievable under
prescribed laboratory conditions for the methods to be used. The requirements of EN 482 apply to a complete
measuring procedure, a combination of the stages consisting of sampling, sample transport/storage and
sample preparation/analysis.
This part of EN 13205 gives performance requirements for samplers for the inhalable, thoracic or respirable
aerosol fractions. Requirements for the aerosol sampler and transport of loaded collection samplers are
stated. Furthermore, the method for calculating the expanded uncertainty for a measuring procedure based on
aerosol sampling is described.
Different test procedures and types of evaluation are described in the other parts of EN 13205 in order to
enable application of EN 13205 to a wide variety of instruments. In detail, three different performance tests for
sampled concentration and a transport test of loaded collection substrates are described. The three tests differ
in the amount of information obtained by the test and its corresponding cost. The first test method determines
the sampling efficiency curve of a candidate sampler, the second compares concentrations sampled from
three laboratory test atmospheres by a candidate sampler and a (previously) validated sampler, and the third
method compares concentrations sampled from a specific workplace by a candidate sampler and a
(previously) validated sampler. Additionally a method for determining equivalence between aerosol samplers
at specific workplaces and an alternative handling test are presented.
EN 13205 enables manufacturers and users of aerosol sampling instruments to adopt a consistent approach
to sampler validation, and provide a framework for the assessment of sampler performance with respect to
EN 481 and EN 482.
It is the responsibility of the manufacturer of aerosol samplers to inform the user of the sampler performance
1)
under the laboratory conditions specified in other parts of this European Standard. It is the responsibility of
the user to ensure that the actual conditions of intended use are within what the manufacturer specifies as
acceptable conditions according to the performance test.
1)
The inhalable convention is undefined for particle sizes in excess of 100 µm or for wind speeds greater than 4 m/s. The
tests required to assess performance are therefore limited to these conditions. Should such large particle sizes or wind
speeds actually exist at the time of sampling, it is possible that different samplers meeting this part of EN 13205 give
different results.
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1 Scope
This European Standard specifies performance requirements that are specific to aerosol samplers, primarily
inhalable, thoracic and respirable aerosol samplers. These performance requirements, which include
conformity with the EN 481 sampling conventions, are applicable only to the process of sampling the airborne
particles from the air, not to the process of analysing particles collected by the process of sampling. Although
analysis of samples collected in the course of testing is usually necessary in order to evaluate the sampler
performance, the specified test methods ensure that analytical errors are kept very low during testing and do
not contribute significantly to the end result.
This part of EN 13205 specifies how the performance of aerosol measuring procedures is assessed with
respect to the general requirements of EN 482, through the combination of errors arising in the sampling,
sample transportation/storage and sample preparation/analysis stages.
This part of EN 13205 is applicable to all samplers used for the health-related sampling of particles in
workplace air.
This part of EN 13205 is not applicable to the determination of analytical errors and factors related to them (for
example the bias, precision and limit of detection of the analytical method). Where the aerosol sampler
requires the use of an external (rather than integral) pump, the pump is not subject to the requirements of this
part of EN 13205.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 481, Workplace atmospheres — Size fraction definitions for measurement of airborne particles
EN 482:2012, Workplace exposure — General requirements for the performance of procedures for the
measurement of chemical agents
EN 1232, Workplace atmospheres — Requirements and test methods for pumps used for personal sampling
of chemical agents in the workplace
EN 1540:2011, Workplace exposure — Terminology
EN 12919, Workplace atmospheres — Pumps for the sampling of chemical agents with a volume flow rate of
over 5 l/min — Requirements and test methods
prEN 13205-2:2012, Workplace exposure — Assessment of sampler performance for measurement of
airborne particle concentrations – Part 2: Laboratory performance test based on determination of sampling
efficiency
prEN 13205-4:2012, Workplace exposure — Assessment of sampler performance for measurement of
airborne particle concentrations – Part 4: Laboratory performance test based on comparison of concentrations
prEN 13205-5:2012, Workplace exposure — Assessment of sampler performance for measurement of
airborne particle concentrations – Part 5: Aerosol sampler performance test and sampler comparison carried
out at workplaces
prEN 13205-6:2012, Workplace exposure — Assessment of sampler performance for measurement of
airborne particle concentrations – Part 6: Transport and handling tests
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EN 13890, Workplace exposure — Procedures for measuring metals and metalloids in airborne particles —
Requirements and test methods
EN 14530, Workplace atmospheres — Determination of diesel particulate matter — General requirements
ISO 15767, Workplace atmospheres — Controlling and characterising uncertainty in weighing collected
aerosols
ISO 21438-1, Workplace atmospheres — Determination of inorganic acids by ion chromatography — Part 1:
Non-volatile acids (sulfuric acid and phosphoric acid)
ISO 21438-3, Workplace atmospheres — Determination of inorganic acids by ion chromatography — Part 3:
Hydrofluoric acid and particulate fluorides
ISO 24095, Workplace air — Guidance for the measurement of respirable crystalline silica
3 Terms and definitions
For the purpose of this document, the term and definitions given in EN 1540 and the following apply.
3.1 Terms related to sampling and transportation
Note 1 to entry: In addition to the terms and definitions given by entry numbers 3.1.1 to 3.1.22, in particular, the
following general terms, terms related to the physical and chemical process of air sampling and terms related to the
analytical method of EN 1540 are used in this document as well: respirable fraction, sampling efficiency, thoracic fraction,
measuring procedure, analysis, analytical method, measurand and occupational exposure limit value.
3.1.1
airborne particles
fine matter, in solid or liquid form, dispersed in air
Note 1 to entry: Smoke, fume, mist and fog consist of airborne particles.
Note 2 to entry: For the purpose of this document, the term comprises all particles surrounded by air with a terminal
settling speed less than a critical value, whereas the critical value will depend on the application. The idea is to exclude
particles that are too large for a specific application.
Note 3 to entry: For the purpose of this document, particles surrounded by air but with a terminal velocity exceeding a
critical value are not to be considered part of the sample.
[SOURCE: EN 1540:2011, 2.2.3, modified – Notes 2 and 3 to entry have been added.]
3.1.2
aerosol
airborne particles and the gas (and vapour) mixture in which they are suspended
Note 1 to entry: The airborne particles can be in or out of equilibrium with their own vapours.
Note 2 to entry: In occupational hygiene, the carrier gas is air, possibly contaminated by other gases and vapours.
[SOURCE: EN 1540:2011, 2.2.4, modified – Note 2 to entry has been added.]
3.1.3
aerosol sampler
(airborne) particle sampler
(airborne) particulate sampler
sampler that is used to transport airborne particles to a collection substrate
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Note 1 to entry: The term aerosol sampler is commonly used although it is not in line with the definition of aerosol
given in EN 1540:2011, 2.2.4.
Note 2 to entry: The transport can be either active or passive.
Note 3 to entry: For the purpose of this document, a sampler is not a pump or an air mover, but can include either of
them in specific cases.
[SOURCE: EN 1540:2011, 3.2.1.5, modified – Note 3 to entry has been added.]
3.1.4
candidate sampler
any aerosol sampler that can be used to collect airborne particles in order to determine their concentration
and whose performance is subjected to performance tests
Note 1 to entry: A candidate sampler that meets the performance criteria will be termed a validated sampler.
3.1.5
collected sample
product of the process of air sampling that consists of the collected chemical and/or biological agents only
Note 1 to entry: For the purpose of this document the collected sample comprises of airborne particles collected and
retained on the sampling substrate for subsequent analysis.
[SOURCE: EN 1540:2011, 3.1.2, modified – Note 1 to entry has been added.]
3.1.6
collection substrate
sampling substrate
collection medium
sampling medium
medium on which airborne chemical and/or biological agents are collected for subsequent analysis
Note 1 to entry: Filters, polyurethane foams and sampling cassettes are examples of collection substrates for airborne
particles.
Note 2 to entry: Activated carbon, silica gel and reagent impregnated filters are examples of collection substrates for
gases and vapours.
Note 3 to entry: Agar media are examples of collection substrates for bioaerosols.
Note 4 to entry: As an example of the converse, the 25-mm or 37-mm plastic filter cassette often used for “total dust”
sampling (with gravimetric analysis) in either its closed-face or open-face version is not part of the substrate in the
definition above, since it is not weighed.
[SOURCE: EN 1540:2011, 3.3.6, modified – Note 4 to entry has been added.]
3.1.7
collection efficiency
efficiency of collection and retention of sampled particles by the collection substrate
Note 1 to entry: The collection efficiency can, for example be influenced by the amount of particles deposited in the
collection substrate.
Note 2 to entry: The collection efficiency (of a collection substrate) should not be confused with the sampling efficiency
(of a sampler). For the definition of sampling efficiency see EN 1540:2011, 3.3.10.
3.1.8
inhalable fraction
mass fraction of total airborne particles which is inhaled through the nose and mouth
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Note 1 to entry: The inhalable fraction is specified in EN 481.
Note 2 to entry: The inhalable fraction depends on the speed and direction of the air movement, on breathing rate and
other factors.
[SOURCE: EN 1540:2011, 2.3.1.1, modified – Note 2 to entry has been added.]
3.1.9
inhalable sampler
aerosol sampler that is used to collect the inhalable fraction
Note 1 to entry: An inhalable sampler collects the inhalable fraction or airborne particles, as defined in EN 481, with a
performance as stipulated in this document.
[SOURCE: EN 1540:2011, 3.2.1.5.1, modified – Note 1 to entry has been added.]
3.1.10
nominal flow rate
design flow rate recommended by the sampler manufacturer or measuring procedure
3.1.11
particle aerodynamic diameter
-3
diameter of a sphere of 1 g cm density with the same terminal settling velocity in calm air as the particle,
under the prevailing conditions of temperature, pressure and relative humidity
Note 1 to entry: The particle aerodynamic diameter depends on the size, density and shape of the particle.
Note 2 to entry: For particles of aerodynamic diameter less than 0,5 µm, the particle thermodynamic diameter should
be used instead of the particle aerodynamic diameter.
[SOURCE: EN 1540:2011, 2.3.2, modified – Note 2 to entry has been added.]
3.1.12
sampler inlet efficiency
for each particle aerodynamic diameter the ratio of aerosol concentration passing through the sampler inlet
system to the corresponding total airborne particle concentration
Note 1 to entry: The sampler inlet efficiency is the product of the aspiration efficiency, which characterises the
aerodynamic behaviour of the sampler orifice, and the size-dependent effects of particle bounce and losses both inside
and outside the inlet. The inlet losses can, for some samplers, also depend on external factors such as wind speed and
aerosol size distribution.
3.1.13
penetration
internal penetration
for each particle aerodynamic diameter the ratio of the sampling efficiency to the sampler inlet efficiency
Note 1 to entry: The penetration describes the efficiency with which particles pass through the stage of inertial
separation, as for example foams, cyclones or impactors.
3.1.14
personal sampler
sampler, attached to a person, that collects gases, vapours or airborne particles in the breathing zone to
determine exposure to chemical and/or biological agents
Note 1 to entry: For the purpose of this document “agent” means airborne particles.
[SOURCE: EN 1540:2011, 3.2.2, modified – Note 1 to entry has been added.]
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3.1.15
respirable sampler
aerosol sampler that is used to collect the respirable fraction
Note 1 to entry: A respirable sampler collects the respirable fraction or airborne particles, as defined in EN 481, with a
performance as stipulated in this document.
[SOURCE: EN 1540:2011, 3.2.1.5.3 modified – Note 1 to entry has been added.]
3.1.16
sampler specimen
sampler individual
single individual of a given type of aerosol sampler
3.1.17
sampling cassette
cassette mounted inside a sampler, designed in such a way that its collection substrate consists of all its
interior surfaces (bounding the air-stream with sampled particles), and usually containing a filter or another
suitable collection substrate
3.1.18
sampling method
part of the measuring procedure that describe the overall process of sampling, including sampler preparation
and sample transport
3.1.19
sampling process
physical mechanisms by which particles are selectively aspirated into a sampler inlet, graded by means of
inertial or other forces, transported to the collection substrate or to other internal surfaces, or lost from the
collection substrate
3.1.20
thoracic sampler
aerosol sampler that is used to collect the thoracic fraction
Note 1 to entry: A thoracic sampler collects the thoracic fraction or airborne particles, as defined in EN 481, with a
performance as stipulated in this document.
[SOURCE: EN 1540:2011, 3.2.1.5.2 modified – Note 1 to entry has been added.]
3.1.21
validated sampler (type A)
sampler that has previously been tested using the methods described in prEN 13205-2 resulting in a
performance as required by prEN13205-1
Note 1 to entry: In a performance test according to prEN 13205-2, the sampling efficiency curve of the candidate
sampler will be determined as a function of particle size (and possibly other influencing factors).
3.1.22
validated sampler (type B)
sampler that has previously been tested using the methods described in prEN 13205-4 resulting in a
performance as required by prEN13205-1
Note 1 to entry: In a performance test according prEN 13205-4, the concentration sampled by the candidate sampler
will be compared with the concentration sampled by a validated reference sampler, for at least three test aerosols.
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3.1.23
validated sampler (type C)
sampler that has previously been tested using the methods described in prEN 13205-5 resulting in a
performance as required in prEN 13205-1
Note 1 to entry: In a performance test according prEN 13205-5, the concentration sampled by the candidate sampler
at a workplace will be compared with the concentration sampled by a validated reference sampler.
3.2 Terms related to performance
Note 1 to entry: In addition to the terms and definitions listed below, in particular, the following terms of EN 1540
related to (method) performance are used in this document as well: random uncertainty, non-random uncertainty, standard
uncertainty, combined standard uncertainty, expanded uncertainty, uncertainty (of measurement), coverage factor,
measuring range and precision.
3.2.1
bias
difference between the expectation of a test result or measurement result and a true value
Note 1 to entry: Bias is the total non-random error as contrasted to random error. There can be one or more non-
random error components contributing to the bias. A larger systematic difference from the true value is reflected by a
larger bias value.
Note 2 to entry: In practice, the accepted reference value is substituted for the true value. The accepted reference
value (for definition see ISO 3534-2) can be, for example, the certified value of a reference material, the concentration of a
standard test atmosphere or the target value of an interlaboratory comparison.
Note 3 to entry: In prEN 13205-2, FprCEN/TR 13205-3, prEN 13205-4 and prEN 13205-5 the true value of the
concentration of a chemical agent in air will be the concentration calculated to be sampled by an ideal sampler with a
sampling efficiency identical to the sampling convention or sampled by a validated sampler.
Note 4 to entry: The definition has originally been taken from ISO 3534-2:2006, 3.3.2.
[SOURCE: EN 1540:2011, 5.3.1 modified – Notes 3 and 4 to entry have been added.]
3.2.2
sampler bias
bias of the sampling method
4 Symbols and abbreviations
NOTE The letter for each Annex in which the symbol is used is shown after each symbol,
4.1 Symbols
4.1.1 Latin
3
C relevant occupational exposure limit, [mg/m ]
OEL
3
C concentration corresponding to 10% of the relevant C , [mg/m ]
0,1 OEL
3
C concentration corresponding to 50% of the relevant C , [mg/m ]
0,5 OEL
3
C concentration corresponding to 200% of the relevant C , [mg/m ]
2 OEL
m
Analysed
mass of the chemical compound analysed in the collected sample, [mg]
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m
Analysed-0,1
mass of the chemical compound analysed in the collected sample from a sample
collected from a concentration equal to C during a sampling period T at the
0,1
nominal flow rate of the sampler, [mg]
m
Analysed-0,5
mass of the chemical compound analysed in the collected sample from a sample
collected from a concentration equal to C during a sampling period T at the
0,5
nominal flow rate of the sampler, [mg]
m
Analysed-2
mass of the chemical compound analysed in the collected sample from a sample
collected from a concentration equal to C during a sampling period T at the
2
nominal flow rate of the sampler, [mg]
m
Collected
mass of the collected sample, [mg]
m estimated mass of the collected sample, [mg]
Est-Collected
m estimated mass of the collected sample collected from a concentration equal to C
0,1
Est-Collected-0,1
during a sampling period T at the nominal flow rate of the sampler, [mg]
m estimated mass of the collected sample collected from a concentration equal to C
Est-Collected-0,5 0,5
during a sampling period T at the nominal flow rate of the sampler, [mg]
m estimated mass of the collected sample collected from a concentration equal to C
2
Est-Collected-2
during a sampling period T at the nominal flow rate of the sampler, [mg]
0
Q nominal flow rate of the sampler, [l/min]
T selected sampling time in the range from the mi
...
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