EN 482:2012
(Main)Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents
Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents
This European Standard specifies general performance requirements for procedures for the determination of the concentration of chemical agents in workplace atmospheres as required by the Chemical Agents Directive 98/24/EC (see reference [6]). These requirements 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.
This European Standard is applicable to
all steps of a measuring procedure,
measuring procedures with separate sampling and analysis steps, and
direct-reading devices.
Exposition am Arbeitsplatz - Allgemeine Anforderungen an die Leistungsfähigkeit von Verfahren zur Messung chemischer Arbeitsstoffe
Diese Europäische Norm legt allgemeine Anforderungen an die Leistungsfähigkeit von Messverfahren zur Bestimmung der Konzentration chemischer Arbeitsstoffe in der Arbeitsplatzatmosphäre fest, wie seitens der Richtlinie über chemische Arbeitsstoffe 98/24/EG (siehe Literaturhinweis [7]) gefordert. Diese Anforderungen gelten für alle Messverfahren, unabhängig vom physikalischen Zustand des chemischen Arbeitsstoffes (Gas, Dampf, luftgetragene Partikel), vom Probenahmeverfahren und vom eingesetzten Analyseverfahren. Diese Europäische Norm gilt für
- alle Schritte eines Messverfahrens,
- Messverfahren mit voneinander unabhängigen Probenahme- und Analyseschritten, und
- direkt anzeigende Messgeräte.
Exposition sur les lieux de travail - Exigences générales concernant les performances des procédures de mesure des agents chimiques
La présente Norme européenne stipule les exigences générales de performances pour les procédures
servant à déterminer la concentration des agents chimiques dans les atmosphères des lieux de travail comme
demandé dans la Directive relative aux agents chimiques 98/24/CE (voir référence [7]). Ces exigences sont
applicables à toutes les procédures de mesure, indépendamment de la forme physique de l’agent chimique
(gaz, vapeur, particules en suspension dans l'air), de la méthode de prélèvement ou d’analyse employée.
La présente Norme européenne est applicable :
- à toutes les étapes d’une procédure de mesure ;
- aux procédures de mesure pour lesquelles le prélèvement et l’analyse sont deux étapes distinctes ; et
- aux dispositifs à lecture directe.
Izpostavljenost na delovnem mestu - Splošne zahteve za izvajanje meritev kemičnih agensov
Ta dokument določa splošne funkcionalne zahteve za postopke za določevanje koncentracije kemičnih agensov v atmosferi na delovnem mestu v skladu z zahtevami Direktive Sveta 98/24/ES o kemičnih dejavnikih. Te zahteve se nanašajo na vse merilne postopke, ne glede na fizično obliko kemičnega agensa (plin, para, lebdeča snov) ter uporabljeno metodo vzorčenja in analitično metodo. Ta dokument se uporablja za vse faze merilnega postopka. Ta dokument se uporablja za merilne postopke z ločenimi fazami vzorčenja in analize ter naprave, ki omogočajo neposredno odčitavanje.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2012
1DGRPHãþD
SIST EN 482:2007
,]SRVWDYOMHQRVWQDGHORYQHPPHVWX6SORãQH]DKWHYH]DL]YDMDQMHPHULWHY
NHPLþQLKDJHQVRY
Workplace exposure - General requirements for the performance of procedures for the
measurement of chemical agents
Exposition am Arbeitsplatz - Allgemeine Anforderungen an die Leistungsfähigkeit von
Verfahren zur Messung chemischer Arbeitsstoffe
Exposition sur les lieux de travail - Exigences générales concernant les performances
des procédures de mesurage des agents chimiques
Ta slovenski standard je istoveten z: EN 482:2012
ICS:
13.040.30 Kakovost zraka na delovnem Workplace atmospheres
mestu
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 482
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2012
ICS 13.040.30 Supersedes EN 482:2006
English Version
Workplace exposure - General requirements for the
performance of procedures for the measurement of chemical
agents
Exposition sur les lieux de travail - Exigences générales Exposition am Arbeitsplatz - Allgemeine Anforderungen an
concernant les performances des procédures de mesure die Leistungsfähigkeit von Verfahren zur Messung
des agents chimiques chemischer Arbeitsstoffe
This European Standard was approved by CEN on 9 March 2012.
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, 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
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 482:2012: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .6
4 Classification .6
4.1 General .6
4.2 Screening measurements of time weighted average concentration .6
4.3 Screening measurements of variation of concentration in time and/or space .6
4.4 Measurements for comparison with (occupational exposure) limit values and periodic
measurements .6
5 Performance requirements .6
5.1 General .6
5.2 Screening measurements of time weighted average concentration .7
5.3 Screening measurements of variation of concentration in time and/or space .7
5.4 Measurements for comparison with limit values and periodic measurements .7
5.4.1 Unambiguity .7
5.4.2 Selectivity .7
5.4.3 Averaging time .7
5.4.4 Measuring range .7
5.4.5 Expanded uncertainty .8
5.5 Composite procedures .8
5.6 Transport and storage .8
5.7 Environmental conditions .8
5.8 Description of measuring procedure .9
5.9 Dimension of result .9
5.10 Additional requirements .9
6 Test method .9
7 Validation report . 10
Annex A (informative) Structure of a method description . 11
Annex B (informative) Calculation of uncertainty of measurement . 12
B.1 General . 12
B.2 Uncertainty associated with sampled air volume or mass uptake . 13
B.3 Uncertainty associated with sampling efficiency . 15
B.4 Uncertainty associated with sample storage and transportation . 17
B.5 Uncertainty associated with method recovery for gases and vapours . 17
B.6 Uncertainty associated with analytical recovery for airborne particles and mixtures of
airborne particles and vapour . 17
B.7 Uncertainty associated with method variability for gases and vapours. 18
B.8 Uncertainty associated with analytical variability for airborne particles and mixtures of
airborne particles and vapour . 18
B.9 General equation for combination of uncertainty components . 18
Bibliography . 20
Foreword
This document (EN 482:2012) 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 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 October 2012, and conflicting national standards shall be withdrawn at
the latest by October 2012.
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 supersedes EN 482:2006.
The major technical changes between this European Standard and the previous edition are as follows:
a) The terms and definitions given in the previous edition have been replaced by a normative reference to
EN 1540:2011.
b) The maximum expanded uncertainty for mixtures of airborne particles and vapour has been changed from
30 % to 50 %, for concentration measurements between 0,5 times and 2 times the limit value.
c) The former Annex A, regarding measurement categories described in EN 689 and involving a combination
of measurement tasks, has been deleted.
d) The former Annex C (now Annex B) has been revised to remove information already given in EN 838,
EN 1076 and EN 13890.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland, Turkey and the United Kingdom.
Introduction
National laws and regulations based 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 worker's breathing zone. The procedures used
for such measurements 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 assessment, it is required that the measurement
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 dust samplers (EN 13205), diffusive samplers (EN 838), pumped samplers (EN 1076),
detector tubes (EN 1231), sampling pumps (EN 1232 and EN 12919), metals and metalloids (EN 13890),
1)
mixtures of airborne particles and vapour (ENV 13936 ) and direct reading instruments (EN 45544 (all parts)).
In these specific European 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 document 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 in practice, this document specifies requirements that have to be
fulfilled by measuring procedures when tested under prescribed laboratory conditions.
It is the user's responsibility to choose the appropriate procedures or devices that meet the requirements of
this document. One way of doing this is 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 most 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 procedures 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 document, a procedure should be used whose performance is closest to the specified requirements.
1) A new edition of ENV 13936 is currently being elaborated and is foreseen to be published as EN 13936.
1 Scope
This European Standard specifies general performance requirements for procedures for the determination of
the concentration of chemical agents in workplace atmospheres as required by the Chemical Agents
Directive 98/24/EC (see reference [7]). These requirements apply to all measuring procedures, irrespective of
the physical form of the chemical agent (gas, vapour, airborne particles), the sampling method an
...
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