BS EN 13205-5-2014 Workplace exposure Assessment of sampler performance for measurement of airborne particle concentrations Aerosol sampler performance test and sampler comparison .pdf

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1、BSI Standards PublicationBS EN 13205-5:2014Workplace exposure Assessment of samplerperformance for measurementof airborne particleconcentrationsPart 5: Aerosol sampler performance testand sampler comparison carried out atworkplacesBS EN 13205-5:2014 BRITISH STANDARDNational forewordThis British Stan

2、dard is the UK implementation of EN 13205-5:2014.Together with BS EN 13205-1:2014, BS EN 13205-2:2014, PD CEN/TR13205-3, BS EN 13205-4:2014 and BS EN 13205-6:2014 it supersedesBS EN 13205:2002 which will be withdrawn upon publication of allparts of the series.The UK participation in its preparation

3、was entrusted to TechnicalCommittee EH/2/2, Work place atmospheres.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication

4、. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78062 2ICS 13.040.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on

5、30 June 2014.Amendments issued since publicationDate Text affectedBS EN 13205-5:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13205-5 June 2014 ICS 13.040.30 Supersedes EN 13205:2001English Version Workplace exposure - Assessment of sampler performance for measurement of airborne particle

6、 concentrations - Part 5: Aerosol sampler performance test and sampler comparison carried out at workplaces Exposition sur les lieux de travail - valuation des performances des dispositifs de prlvement pour le mesurage des concentrations de particules en suspension dans lair - Partie 5: Essais de pe

7、rformances des chantillonneurs darosols, raliss sur les lieux de travailExposition am Arbeitsplatz - Beurteilung der Leistungsfhigkeit von Sammlern fr die Messung der Konzentration luftgetragener Partikel - Teil 5: An Arbeitspltzen durchgefhrte Prfung der Leistungsfhigkeit des Aerosolsammlers und Sa

8、mmlervergleich 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 bibliogra

9、phical 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 responsibil

10、ity 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

11、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 COMIT EUROPEN DE NORMALISAT

12、ION EUROPISCHES KOMITEE FR 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 13205-5:2014 EBS EN 13205-5:2014EN 13205-5:2014 (E) 2 Contents Page Foreword 4

13、 Introduction . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions . 7 4 Symbols and abbreviations 8 4.1 Symbols 8 4.1.1 Latin 8 4.1.2 Greek . 10 4.2 Enumerating subscripts 10 5 Principle 10 6 Test method 11 6.1 General 11 6.2 Performance test of personal samplers for the inhalable aerosol

14、 fraction . 11 6.3 Performance test of static samplers 11 6.4 Performance test of personal samplers for the respirable or thoracic aerosol fractions 11 6.5 Experiments required for the performance test . 12 6.5.1 General 12 6.5.2 Candidate sampler bias 12 6.5.3 Candidate sampler variability . 12 6.5

15、.4 Excursion from the nominal flow rate . 12 6.5.5 Collected mass or internally separated mass 13 7 Calculation of sampler bias and expanded uncertainty 14 7.1 Requirements . 14 7.2 Correction factor 14 7.3 Calculation of concentration ratios . 14 7.4 Sources of uncertainty (of measurement) 15 7.4.1

16、 General 15 7.4.2 Workplace (test) aerosol concentration, as determined using the validated sampler(s) 15 7.4.3 Validated sampler 16 7.4.4 Candidate sampler bias 16 7.4.5 Individual candidate sampler variability . 17 7.4.6 Excursion from the nominal flow rate . 17 7.4.7 Collected mass or internally

17、separated mass 18 7.5 Combined standard uncertainty . 21 7.6 Expanded uncertainty . 23 8 Periodic validation . 23 9 Test report 23 9.1 General 23 9.2 Testing laboratory details and sponsoring organisation 24 9.3 Description of the candidate sampler and validated sampler 24 9.4 Critical review of sam

18、pling process 24 9.5 Circumstances of field experiment 24 9.6 Details of experimental design . 24 9.7 Data analysis 25 BS EN 13205-5:2014EN 13205-5:2014 (E) 3 9.8 Performance . 25 9.9 Summary and information for the user . 25 Annex A (normative) Procedure for a workplace comparison of a candidate sa

19、mpler and a validated sampler in order to obtain a correction factor . 26 Bibliography 31 BS EN 13205-5:2014EN 13205-5:2014 (E) 4 Foreword This document (EN 13205-5:2014) has been prepared by Technical Committee CEN/TC 137 “Assessment of workplace exposure to chemical and biological agents”, the sec

20、retariat 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 d

21、rawn 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 13205-1, EN 13205-2, CEN/TR 13205-3, EN 13205-4 and EN 13205-6 supers

22、edes 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; Part 2: Laboratory performance test based on determination of sampling efficiency; Part 3: Analysis o

23、f 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 (the present document); Part 6: Transport and handling tests. Significant technical change

24、s from the previous edition, EN 13205:2001: This part of EN 13205 is partly based on Annex C 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. As this is

25、now a standard in its own right, a clause on used symbols has been added. Almost all definitions are now given either in EN 1540, Workplace exposure Terminology or in Part 1 of this standard. The method of calculating the uncertainty of a sampler or a measuring procedure has been revised in order to

26、 comply with ENV 13005. The concept of “accuracy” is no longer used, instead the concept of “expanded uncertainty” is used. The main part of the standard states how to determine the performance of an aerosol sampler at a specific workplace. This is an adaption of the laboratory method given in Part

27、2. The standard gives a method on how to determine the dependence of the sampling efficiency on the collected mass or internally separated mass. The five major sources of uncertainty due to aspects of the sampling performance of an aerosol sampler (calibration of sampler test system, estimation of s

28、ampled concentration, bias relative to the sampling BS EN 13205-5:2014EN 13205-5:2014 (E) 5 convention, individual sampler variability and excursion from nominal flow rate) are described with formulae on how to incorporate these uncertainties into the expanded uncertainty of a sampler. According to

29、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,

30、 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13205-5:2014EN 13205-5:2014 (E) 6 Introduction EN 481 defines sampling conventions for the par

31、ticle 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 eff

32、iciency 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 sam

33、plers 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. The workplace performance test for samplers for the inhalable,

34、 thoracic or respirable aerosol fractions described in this document is based on a comparison of concentrations sampled from a specific workplace (under otherwise identical conditions) by a candidate sampler and a (previously) validated sampler. Additionally, a method is described for determining a

35、correction factor for recalculation of the concentration determined with one sampler into that of the other at specific workplaces. This method is intended for the user, rather than the manufacturer, of aerosol samplers. EN 13205 (all parts) enables manufacturers and users of aerosol samplers to ado

36、pt 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)specifi

37、ed in EN 13205-1. 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 m or for win

38、d 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. BS EN

39、13205-5:2014EN 13205-5:2014 (E) 7 1 Scope This European Standard specifies a method for determining the performance of an aerosol sampler under prescribed workplace conditions in order to test whether the performance of a candidate sampler fulfils the requirements of EN 13205-1. This part of EN 1320

40、5 specifies also a simple method to determine how, for a specific workplace aerosol, the concentration measured by the candidate sampler can be recalculated into that of a validated sampler. This part of EN 13205 is applicable to all samplers used for the health-related sampling of particles in work

41、place air. Different test procedures and types of evaluation are included to enable application of this part of EN 13205 to a wide variety of instruments. The methods specified in this part of EN 13205 are not applicable to tests where the performance of personal samplers is related to static sample

42、rs or vice versa. 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 (i

43、ncluding any amendments) applies. EN 1540, Workplace exposure - Terminology EN 13205-1:2014, Workplace exposure Assessment of sampler performance for measurement of airborne particle concentrations Part 1: General requirements EN 13205-2:2014, Workplace exposure Assessment of sampler performance for

44、 measurement of airborne particle concentrations Part 2: Laboratory performance test based on determination of sampling efficiency EN 13205-4:2014, Workplace exposure Assessment of sampler performance for measurement of airborne particle concentrations Part 4: Laboratory performance test based on co

45、mparison of concentrations 3 Terms and definitions For the purpose of this document, the term and definitions given in EN 1540, EN 13205-1:2014 EN 13205-2:2014 and the following apply. NOTE With regard to EN 1540, in particular, the following terms are used in this document: total airborne particles

46、, respirable fraction, sampling efficiency, static sampler, thoracic fraction, inhalable fraction, measuring procedure, non-random uncertainty, random uncertainty, expanded uncertainty, standard uncertainty, combined standard uncertainty, uncertainty (of measurement), coverage factor, precision and

47、analysis. 3.1 correction function mathematical function relating aerosol concentrations measured using a candidate sampler to those measured using a validated sampler, determined by a comparison of the two samplers BS EN 13205-5:2014EN 13205-5:2014 (E) 8 4 Symbols and abbreviations 4.1 Symbols 4.1.1

48、 Latin Camb inhalertlaverage total airborne particle (or inhalable aerosol fraction) concentration for partial sampling period l in run r for sampling time t, mg/m3 COELappropriate occupational exposure limit value (OEL) applying to the substances being measured, mg/m3 Crtlconcentration for partial

49、sampling period l in run r, for sampling time t, mg/m3 twa l1l 2Cr3time-weighted concentration average for candidate sampler for run r, sampling time t = 3 extending from partial sampling period l1 to partial sampling period l2, mg/m3 c candidate sampler correction factor for bias correction, either prescribed by sampler manufacturer or measuring procedure, or assigned the value c = 1.00, - mrtlaverage mass collected during partial sampling period l, in run r for sampling time t (where t = 1,2,3 represents samplin

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