DIN EN 482-2015 Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents German version EN 482 2012+A1 2015《工作场所暴露 化学试剂测量用.pdf

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1、December 2015 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 13.040.30!%J|O“2398944www.din.d

2、eDIN EN 482Workplace exposure General requirements for the performance of procedures for the measurement of chemical agents;English version EN 482:2012+A1:2015,English translation of DIN EN 482:2015-12Exposition am Arbeitsplatz Allgemeine Anforderungen an die Leistungsfhigkeit von Verfahren zur Mess

3、ung chemischer Arbeitsstoffe;Englische Fassung EN 482:2012+A1:2015,Englische bersetzung von DIN EN 482:2015-12Exposition sur les lieux de travail Exigences gnrales concernant les performances des procdures de mesure des agents chimiques;Version anglaise EN 482:2012+A1:2015,Traduction anglaise de DIN

4、 EN 482:2015-12SupersedesDIN EN 482:2012-06www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 23 pages 12.15 DIN EN 482:2015-12 2 A comma is used as the decimal marker. National foreword This document (EN

5、 482:2012+A1:2015) 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 its preparation was DIN-Normenausschuss Sicherheitstechnische Grundstze (DIN Standards Comm

6、ittee Safety Design Principles), Working Committee NA 095-03-01 AA Messstrategien und Anforderungen an Messverfahren. Amendments This standard differs from DIN EN 482:2012-06 as follows: a) Amendment A1 has been incorporated (indicated in the text by tags); b) Subclause 5.4.6 has been added; c) the

7、fourth paragraph of B.2.1.4 and the second paragraph of B.3.3.2 have been updated in order to meet the requirements specified in DIN EN ISO 13137 and to take account of the division of the former DIN EN 13205 into several parts. Previous editions DIN EN 482: 1994-09, 2006-10, 2012-06 EUROPEAN STANDA

8、RD NORME EUROPENNE EUROPISCHE NORM EN 482:2012+A1 October 2015 ICS 13.040.30 Supersedes EN 482:2012English Version Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents Exposition sur les lieux de travail - Exigences gnrales concernant les

9、 performances des procdures de mesure des agents chimiques Exposition am Arbeitsplatz - Allgemeine Anforderungen an die Leistungsfhigkeit von Verfahren zur Messung chemischer Arbeitsstoffe This European Standard was approved by CEN on 9 March 2012 and includes Amendment 1 approved by CEN on 15 Augus

10、t 2015. 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 obtai

11、ned 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

12、-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,

13、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre:

14、Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 482:2012+A1:2015 EEN 482:2012+A1:2015 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 6 2 Normative references 6 3 Terms and de

15、finitions . 7 4 Classification . 7 4.1 General 7 4.2 Screening measurements of time weighted average concentration 7 4.3 Screening measurements of variation of concentration in time and/or space 7 4.4 Measurements for comparison with (occupational exposure) limit values and periodic measurements 7 5

16、 Performance requirements . 7 5.1 General 7 5.2 Screening measurements of time weighted average concentration 8 5.3 Screening measurements of variation of concentration in time and/or space 8 5.4 Measurements for comparison with limit values and periodic measurements . 8 5.4.1 Unambiguity 8 5.4.2 Se

17、lectivity . 8 5.4.3 Averaging time . 8 5.4.4 Measuring range 9 5.4.5 Expanded uncertainty . 9 5.4.6 Chemical agents with low limit values 9 5.5 Composite procedures 9 5.6 Transport and storage . 9 5.7 Environmental conditions 10 5.8 Description of measuring procedure 10 5.9 Dimension of result . 10

18、5.10 Additional requirements . 10 6 Test method . 10 7 Validation report 11 Annex A (informative) Structure of a method description . 12 Annex B (informative) Calculation of uncertainty of measurement. 13 B.1 General . 13 B.2 Uncertainty associated with sampled air volume or mass uptake 14 B.2.1 Pum

19、ped sampling. 14 B.2.1.1 Sources of uncertainty 14 B.2.1.2 Flow rate measurement . 14 B.2.1.3 Pump flow stability 15 DIN EN 482:2015-12 EN 482:2012+A1:2015(E)3 B.2.1.4 Sampling time 16 B.2.2 Diffusive sampling 16 B.2.2.1 Sources of uncertainty 16 B.2.2.2 Uptake rate 16 B.2.2.3 Sampling time 16 B.3 U

20、ncertainty associated with sampling efficiency 16 B.3.1 Pumped sampling methods for gases and vapours 16 B.3.2 Diffusive sampling methods for gases and vapours . 17 B.3.3 Aerosol sampling methods 17 B.3.3.1 General . 17 B.3.3.2 Closeness of matching with the required sampling convention(s) 17 B.3.3.

21、3 Uncertainty components for aerosol samplers Estimates for general use . 17 B.3.3.4 Efficiency of the collection substrate . 18 B.3.3.4.1 Filter materials 18 B.3.3.4.2 Foams 18 B.4 Uncertainty associated with sample storage and transportation . 18 B.4.1 Sample storage 18 B.4.2 Transportation 18 B.4

22、.2.1 Gas samples and vapour samples . 18 B.4.2.2 Aerosol samples 18 B.5 Uncertainty associated with method recovery for gases and vapours . 18 B.6 Uncertainty associated with analytical recovery for airborne particles and mixtures of airborne particles and vapour 19 B.7 Uncertainty associated with m

23、ethod variability for gases and vapours 19 B.8 Uncertainty associated with analytical variability for airborne particles and mixtures of airborne particles and vapour . 19 B.9 General equation for combination of uncertainty components 20 Bibliography . 21 DINEN 482:2015-12EN 482:2012+A1:2015(E)4 Eur

24、opean foreword This document (EN 482:2012+A1:2015) 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 pub

25、lication of an identical text or by endorsement, at the latest by April 2016, and conflicting national standards shall be withdrawn at the latest by April 2016. 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 sh

26、all not be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved by CEN on 2015-08-15. This document supersedes !EN 482:2012“. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. !deleted text“ Acc

27、ording 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, German

28、y, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 482:2015-12 EN 482:2012+A1:2015 (E) 5 Introduction National laws and regulations ba

29、sed on European Directives require the assessment of the potential exposure of a worker to chemical agents in workplace atmospheres. One way of assessing such exposure is to measure the concentration of a chemical agent in the air in the workers breathing zone. The procedures used for such measureme

30、nts should give reliable and valid results, so that when compared with set occupational exposure limit values, a correct decision can be made, for instance, as to whether the exposure level is acceptable or control measures need to be applied. !Because of their importance in the process of exposure

31、assessment, it is required that the measuring procedures fulfil some general requirements which are given in this document. Specific European Standards have been prepared for different types of measuring procedures and measuring devices. These include European Standards for airborne particle sampler

32、s (EN 13205-1), diffusive samplers (EN 838), pumped samplers (EN 1076), detector tubes (EN ISO 17621), sampling pumps (EN ISO 13137), metals and metalloids (EN 13890), mixtures of airborne particles and vapour (EN 13936) and direct reading instruments (EN 45544 (all parts). In these specific Europea

33、n Standards, additional requirements have been included for the procedure or device in question, so that the general requirements of this document are not compromised. Where no specific European Standard exists, only the general requirements apply.“ Performance requirements are given in this documen

34、t for unambiguity, selectivity, averaging time, measuring range and expanded uncertainty for minimum specified measuring ranges. These requirements are intended to apply under environmental conditions present at the workplace. However, because a wide range of environmental conditions are encountered

35、 in practice, this document specifies requirements that have to be fulfilled by measuring procedures when tested under prescribed laboratory conditions. It is the users responsibility to choose the appropriate procedures or devices that meet the requirements of this document. One way of doing this i

36、s to obtain information or confirmation from the provider of a procedure or the manufacturer of a device. Type-testing or, more generally, assessment of the performance of procedures or devices, can be undertaken by the manufacturer, user, test house or research and development laboratory, as is mos

37、t appropriate. A number of existing procedures for workplace measurements have either been tested over a part of the required minimum measuring range, but not over the entire range, or have not been tested for all environmental influences and potential interferences. If these partially validated pro

38、cedures meet the performance requirements of this European Standard, they can be used at present. Nevertheless these procedures should be tested over the full ranges as soon as is reasonably practicable. If there is no measuring procedure for a chemical agent which meets the requirements of this doc

39、ument, a procedure should be used whose performance is closest to the specified requirements. DIN EN 482:2015-12 EN 482:2012+A1:2015 (E) 6 1 Scope !This European Standard specifies general requirements for the performance of procedures for the determination of the concentration of chemical agents in

40、 workplace atmospheres as required by the Chemical Agents Directive 98/24/EC (see reference 9). The requirements given apply to all measuring procedures, irrespective of the physical form of the chemical agent (gas, vapour, airborne particles), the sampling method and the analytical method used.“ Th

41、is European Standard is applicable to all steps of a measuring procedure, measuring procedures with separate sampling and analysis steps, and direct-reading devices. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable

42、 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 838, Workplace exp

43、osure - Procedures for measuring gases and vapours using diffusive samplers - Requirements and test methods EN 1076, Workplace exposure - Procedures for measuring gases and vapours using pumped samplers - Requirements and test methods EN 1540, Workplace exposure - Terminology EN 13205-1, Workplace e

44、xposure - 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 13936, Workplace exposure - Procedures

45、 for measuring a chemical agent present as a mixture of airborne particles and vapour - Requirements and test methods EN 45544 (all parts), Workplace atmospheres Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours EN ISO 13137, Workplace

46、 atmospheres Pumps for personal sampling of chemical and biological agents Requirements and test methods (ISO 13137) EN ISO 17621, Workplace atmospheres Short term detector tube measurement systems Requirements and test methods (ISO 17621) ISO 78-2, Chemistry Layouts for standards Part 2: Methods of

47、 chemical analysis“ DIN EN 482:2015-12 EN 482:2012+A1:2015 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1540 apply. 4 Classification 4.1 General In this document, measurements are classified according to their purpose. These classifications a

48、re based upon the measurement strategy laid down in EN 689. 4.2 Screening measurements of time weighted average concentration Screening measurements of time weighted average concentration are performed to obtain relatively crude quantitative information on exposure levels. Such information is used t

49、o identify potential health hazards, and to estimate the risk to health based on the likely severity of harm and the probability of its occurrence. These measurements can also determine if the exposure is significantly below or significantly above the (occupational exposure) limit value. 4.3 Screening measurements of variation of concentration in time and/or space Screening measurements of variation of concentration in time and/or space are used to: a) provide inf