DIN EN 13936-2014 Workplace exposure - Procedures for measuring a chemical agent present as a mixture of airborne particles and vapour - Requirements and test methods German versio.pdf

1、April 2014 Translation by DIN-Sprachendienst.English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS

2、13.040.30!%1A7“2143020www.din.deDDIN EN 13936Workplace exposure Procedures for measuring a chemical agent present as a mixture ofairborne particles and vapour Requirements and test methods;English version EN 13936:2014,English translation of DIN EN 13936:2014-04Exposition am Arbeitsplatz Messung ein

3、es als Mischung aus luftgetragenen Partikeln und Dampf vorliegendenchemischen Arbeitsstoffes Anforderungen und Prfverfahren;Englische Fassung EN 13936:2014,Englische bersetzung von DIN EN 13936:2014-04Exposition sur les lieux de travail Mesurage de lagent chimique sous forme de mlange de particules

4、ariennes et devapeur Exigences et mthodes dessai;Version anglaise EN 13936:2014,Traduction anglaise de DIN EN 13936:2014-04SupersedesDIN V ENV 13936:2001-10,withdrawn 2007-06www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 26 pages 03.14

5、 DIN EN 13936:2014-04 2 A comma is used as the decimal marker. National foreword This document (EN 13936:2014) has been prepared by Technical Committee CEN/TC 137 “Assessment of workplace exposure to chemical and biological agents” (Secretariat: DIN, Germany). The responsible German body involved in

6、 its preparation was the Normenausschuss Sicherheitstechnische Grundstze (Safety Design Principles Standards Committee), Working Committee NA 095-03-01 AA Mess-strategien und Anforderungen an Messverfahren. Amendments This standard differs from DIN V ENV 13936:2001-10 (withdrawn 2007-06) as follows:

7、 a) the title of the standard has been modified; b) performance criteria for the evaluation of procedures for measuring a chemical agent present as a mixture of airborne particles and vapour have been brought in line with the general requirements specified in DIN EN 482; c) the determination and exp

8、ression of uncertainty in measurement has been revised and brought in line with ISO/IEC Guide 98-3:2008, Guide to the expression of uncertainty in measurement (GUM, corresponds to DIN V ENV 13005); d) Annex A (informative) “Possible approaches to sample mixtures of airborne particles and vapour” has

9、 been added; e) Annex B (informative) “Physical behaviour of a mixture of airborne particles and vapour” has been supplemented; f) the standard has been editorially revised. Previous editions DIN V ENV 13936: 2001-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13936 January 2014 ICS 13.040.

10、30 English Version Workplace exposure - Procedures for measuring a chemical agent present as a mixture of airborne particles and vapour - Requirements and test methods Exposition sur les lieux de travail - Mesurage de lagent chimique sous forme de mlange de particules ariennes et de vapeur - Exigenc

11、es et mthodes dessai Exposition am Arbeitsplatz - Messung eines als Mischung aus luftgetragenen Partikeln und Dampf vorliegenden chemischen Arbeitsstoffes - Anforderungen und Prfverfahren This European Standard was approved by CEN on 30 November 2013. CEN members are bound to comply with the CEN/CEN

12、ELEC 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

13、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 of

14、ficial 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, Netherland

15、s, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights o

16、f exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13936:2014 EEN 13936:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Requirements .7 4.1 General 7 4.2 Sampler requirements .7 4.3

17、Pumps .7 4.4 Measurement procedure requirements for mixtures of airborne particles and vapour .7 4.4.1 Storage test 7 4.4.2 Expanded uncertainty .7 4.4.3 Method description 7 5 Test methods 8 5.1 Sample distribution between the collection substrate for airborne particles and the collection substrate

18、 for vapour 8 5.2 Compliance with EN 1076 .9 5.3 Storage 9 5.4 Uncertainty of the measurement . 10 5.4.1 Calculation of the combined standard uncertainty . 10 5.4.2 Calculation of the expanded uncertainty . 10 6 Test report . 10 Annex A (informative) Possible approaches to sample mixtures of airborn

19、e particles and vapour . 11 A.1 General . 11 A.2 Filter plus pumped sorbent tube . 11 A.2.1 General . 11 A.2.2 Sampling flow rate 11 A.3 Reagent-impregnated sampling system 12 A.4 Transport and storage 12 Annex B (informative) Physical behaviour of a mixture of airborne particles and vapour . 13 B.1

20、 Generation of a mixture of airborne particles and vapour . 13 B.2 Sampling of chemical agents having a vapour pressure of more than 100 Pa at room temperature (process temperature) 13 B.3 Sampling of chemical agents having a vapour pressure of more than 0,001 Pa and less than or equal to 100 Pa at

21、room temperature 13 B.4 Sampling of chemical agents having a vapour pressure of less than 0,001 Pa at room temperature . 15 Annex C (informative) Estimation of uncertainty of measurement . 16 C.1 Uncertainty components 16 C.2 Two collection substrates for airborne particles and vapour 16 DINEN 13936

22、:2014-04EN 13936:2014 (E) 3 C.2.1 Sampled air volume and sampling efficiency. 16 C.2.2 Sample storage 16 C.2.3 Effects of temperature and humidity . 16 C.2.4 Analysis 17 C.2.5 Bias of sample distribution between the collection substrate for airborne particles and the collection substrate for vapour

23、(distribution bias) 17 C.2.6 Calculation of the relative combined uncertainty 17 C.2.6.1 Samples analysed separately 17 C.2.6.1.1 General 17 C.2.6.1.2 Same sampling volume for airborne particles and vapour . 18 C.2.6.1.3 Different sampling volumes for airborne particles and vapour 18 C.2.6.1.4 Airbo

24、rne particles or vapour collection substrate not analysed 19 C.2.6.2 Samples analysed together 19 C.3 One collection substrate for airborne particles and vapour . 19 C.3.1 General . 19 C.3.2 Sampling. 19 C.3.3 Analysis 19 C.3.4 Calculation of the relative combined standard uncertainty 20 Bibliograph

25、y 21 DIN EN 13936:2014-04 EN 13936:2014 (E) 4 Foreword This document (EN 13936:2014) 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

26、a national standard, either by publication of an identical text or by endorsement, at the latest by July 2014, and conflicting national standards shall be withdrawn at the latest by July 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of pate

27、nt rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. 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, Cro

28、atia, 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

29、the United Kingdom. DIN EN 13936:2014-04 EN 13936:2014 (E) 5 Introduction EN 482 specifies general requirements for the performance of procedures that methods for the measurement of the concentration of chemical agents in workplace atmospheres should meet. These performance criteria include maximum

30、values of expanded uncertainty achievable under prescribed laboratory conditions for the methods to be used. Chemical agents in workplace air are often present in both gaseous and non-gaseous phases at the same time and therefore validated methods are required that can measure the combined concentra

31、tion of the chemical agent in both phases. Examples include: processes that generate aerosols of volatile or semi-volatile liquids or solids such a paint spraying, metalworking with coolants and lubricants, acid pickling etc. and hot processes which generate vapours of chemical agents that are norma

32、lly in the liquid or solid phase under ambient conditions, e.g. road surfacing with bitumen. For health-related sampling of mixed-phase aerosols, it is necessary to measure the mass concentration of the inhalable fraction of hazardous chemical agents, regardless of whether they are present as airbor

33、ne particles or vapour. This generally means drawing air through two or more collection media in series. If a chemical agent is collected in the form of airborne particles and it has a significant vapour pressure under ambient conditions, it will wholly or partly volatilise during sampling. Subseque

34、ntly the resulting vapour needs to be collected so that the total mass of the chemical agent can be measured; the chemical agent can also be lost from the collected airborne particles after sampling if it is not stabilised. In some cases, it might also be necessary to measure the distribution of che

35、mical agents between the particulate and vapour phases as well as the mass concentration of the inhalable fraction. For example, there can be compounds whose toxicology is known to differ significantly depending on whether they exist as airborne particles or vapour. In addition, control measures in

36、the workplace can depend on which phase dominates. Exposure limits can be phase-specific. However, the separate quantification of airborne particles and vapour is technically complex and subject to error using existing sampling technologies. For this reason, this European Standard is not applicable

37、to methods that differentiate between the sampled airborne particles and vapour. DINEN 13936:2014-04EN 13936:2014 (E) 6 1 Scope This European Standard specifies performance requirements and test methods for the evaluation of procedures for measuring a chemical agent present as a mixture of airborne

38、particles and vapour in workplace air. This European Standard establishes general principles to enable developers and users of mixed-phase samplers and methods to adopt a consistent approach to method validation and provides a framework for the assessment of method performance in accordance with EN

39、482. Annex A of this European Standard gives guidance on possible approaches to sample mixtures of airborne particles and vapour and Annex B gives information about their physical behaviour. This European Standard is not applicable to methods that differentiate between the sampled airborne particles

40、 and vapour. This European Standard is not applicable to a chemical agent present in different chemical and physical forms (for example, mercury in the form of Hg (0) and Hg (II). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are

41、 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,

42、Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents EN 1076, Workplace exposure - Procedures for measuring gases and vapours using pumped samplers - Requirements and test methods EN 1540:2011, Workplace exposure - Terminology prEN 13205-

43、11, Workplace exposure Assessment of sampler performance for measurement of airborne particle concentrations Part 1: General requirements EN 13890, Workplace exposure - Procedures for measuring metals and metalloids in airborne particles - Requirements and test methods EN ISO 13137, Workplace atmosp

44、heres - Pumps for personal sampling of chemical and biological agents - Requirements and test methods (ISO 13137) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1540:2011 and the following apply. 3.1 single component aerosol aerosol in which the airb

45、orne particles and vapour are composed of the same chemical agent 1) To be published. DIN EN 13936:2014-04 EN 13936:2014 (E) 7 3.2 multiple component aerosol aerosol containing more than one chemical agent, each of which can be present in the form of airborne particles and/or vapour 3.3 vapour sampl

46、er pumped sampler or diffusive sampler that is used to collect vapour 4 Requirements 4.1 General Regardless of the combination of samplers used, the measurement procedure used shall comply with the requirements of EN 482 and with the requirements of EN 1076, EN ISO 13137, prEN 13205-1 and EN 13890,

47、as appropriate. It is the responsibility of the manufacturer or of those who assemble mixed-phase samplers to ensure that the method complies with the requirements for expanded uncertainty under the specified laboratory conditions given in this document, including the environmental influences that c

48、an be expected to affect performance. 4.2 Sampler requirements Measurement procedures shall specify the use of a mixed-phase sampler designed to collect the inhalable fraction of airborne particles, as defined in EN 481, and vapours. The sampler shall comply with prEN 13205-1 and with the performance requirements for pumped samplers prescribed in EN 1076. The back pressure of the mixed-phase sampler shall not exceed the maximum values specified in EN ISO 13137. A mixed-phase sampler may comprise of an inhalable sampler in combination wit