EN 482:2006
(Main)Workplace atmospheres - General requirements for the performance of procedures for the measurement of chemical agents
Workplace atmospheres - General requirements for the performance of procedures for the measurement of chemical agents
This document specifies general performance requirements for procedures determining the concentration of chemical agents in workplace atmospheres as required by the Chemical Agents Directive 98/24/EC (see [1]). These requirements apply to all measuring procedures, irrespective of the physical form of the chemical agent (gas, vapour, suspended matter) and of the sampling method or analytical method used.
This document is applicable to all steps of a measuring procedure.
This document is applicable to measuring procedures with separate sampling and analysis steps, and also to direct-reading devices.
Arbeitsplatzatmosphäre - Allgemeine Anforderungen an die Leistungsfähigkeit von Verfahren zur Messung chemischer Arbeitsstoffe
Dieses Dokument 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 [1]) gefordert. Diese Anforderungen gelten für alle Messverfahren, unabhängig vom physikalischen Zustand des chemischen Arbeitsstoffes (Gas, Dampf, Schwebstoff), vom Probenahmeverfahren und vom eingesetzten Analysenverfahren.
Dieses Dokument gilt für alle Schritte eines Messverfahrens.
Dieses Dokument gilt sowohl für Messverfahren mit voneinander unabhängigen Probenahme- und Analyseschritten als auch für direkt anzeigende Messgeräte.
Atmosphères des lieux de travail - Exigences générales concernant les performances des procédures de mesurage des agents chimiques
Le présent document stipule les exigences générales de performance pour les procédures servant à déterminer la concentration des agents chimiques dans les atmosphères des lieux de travail tel que demandé dans la Directive relative aux agents chimiques 98/24/CE (voir en [1]). Ces exigences sont applicables à toutes les procédures de mesurage, indépendamment de la forme physique de l’agent chimique (gaz, vapeur, matière en suspension) et de la méthode de prélèvement ou d’analyse employée.
Le présent document est applicable à toutes les étapes de la procédure de mesurage.
Il s’applique aux procédures de mesurage qui séparent prélèvement et analyse, ainsi qu’aux dispositifs à lecture directe.
Zrak na delovnem mestu - Splošne zahteve za izvajanje meritev kemičnih agensov
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2007
1DGRPHãþD
SIST EN 482:1998
=UDNQDGHORYQHPPHVWX6SORãQH]DKWHYH]DL]YDMDQMHPHULWHYNHPLþQLKDJHQVRY
Workplace atmospheres - General requirements for the performance of procedures for
the measurement of chemical agents
Arbeitsplatzatmosphäre - Allgemeine Anforderungen an die Leistungsfähigkeit von
Verfahren zur Messung chemischer Arbeitsstoffe
Atmospheres des lieux de travail - Exigences générales concernant les performances
des procédures de mesurage des agents chimiques
Ta slovenski standard je istoveten z: EN 482:2006
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
August 2006
ICS 13.040.30 Supersedes EN 482:1994
English Version
Workplace atmospheres - General requirements for the
performance of procedures for the measurement of chemical
agents
Atmosphères des lieux de travail - Exigences générales Arbeitsplatzatmosphäre - Allgemeine Anforderungen an die
concernant les performances des modes opératoires de Leistungsfähigkeit von Verfahren zur Messung chemischer
mesurage des agents chimiques Arbeitsstoffe
This European Standard was approved by CEN on 7 July 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, 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 and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 482:2006: E
worldwide for CEN national Members.
Contents Page
Foreword.4
1 Scope .6
2 Normative references .6
3 Terms and definitions .7
4 Classification.9
4.1 General.9
4.2 Screening measurements of time weighted average concentration.9
4.3 Screening measurements of variation of concentration in time and/or space .9
4.4 Measurements for comparison with (occupational exposure) limit values and periodic
measurements.9
5 Performance requirements .10
5.1 Screening measurements of time weighted average concentration.10
5.2 Screening measurements of variation of concentration in time and/or space .10
5.3 Measurements for comparison with limit values and periodic measurements .10
5.4 Composite procedures.11
5.5 Transport and storage.11
5.6 Environmental conditions.11
5.7 Description of measuring procedure.12
5.8 Dimension of result .12
5.9 Additional requirements .12
6 Test method.12
7 Validation report .13
Annex A (informative) Measurement categories described in EN 689 and involving a combination
of measurement tasks.14
A.1 Worst case measurements .14
A.2 Fixed point measurements .14
A.3 Short-term peak measurements.14
Annex B (informative) Structure of a method description .15
Annex C (informative) Calculation of uncertainty of measurement .16
C.1 General.16
C.2 Uncertainty associated with sampled air volume .16
C.2.1 Pumped sampling.16
C.2.2 Diffusive sampling.18
C.3 Uncertainty associated with sampling efficiency.18
C.3.1 Pumped sampling methods for gases and vapours .18
C.3.2 Diffusive sampling methods for vapours.18
C.3.3 Aerosol sampling methods.19
C.4 Uncertainty associated with sample storage and transportation.21
C.4.1 Sample storage .21
C.4.2 Transportation.21
C.5 Uncertainty associated with analytical recovery.21
C.5.1 Gases and vapours.21
C.5.2 Measurement of chemical agents in airborne particles .23
C.6 Uncertainty associated with analytical variability.24
C.6.1 General.24
C.6.2 Estimation using repeatability data .24
C.6.3 Estimation using within-laboratory reproducibility data.25
C.6.4 Blank subtraction .26
C.7 General equation for combination of uncertainty components .26
Bibliography.27
Foreword
This document (EN 482:2006) 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 February 2007, and conflicting national standards shall be withdrawn
at the latest by February 2007.
This document supersedes EN 482:1994.
The major technical change between this European Standard and the previous edition is the revision of the
method of calculating the uncertainty of a measurement procedure to comply with ENV 13005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, 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 and United Kingdom.
Introduction
National laws and regulations based on European Directives require the assessment of the potential worker
exposure 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 should 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), sorption tubes for
active sampling (EN 1076), detector tubes (EN 1231), sampling pumps (EN 1232, EN 12919), metals and
metalloids (EN 13890), mixtures of airborne particles and vapours (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, expanded uncertainty for
minimum specified measuring ranges, averaging time, etc. These requirements are intended to apply under
environmental conditions present at the workplace. However, because a wide range of environmental
conditions is 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 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 been tested over
part of the required minimum specified measuring range but not over the entire range (see Table 1) or have
not been tested for all environmental influences and potential interference's. If these partially validated
procedures meet the performance requirements of this European Standard they can nevertheless be used at
present. 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 meet the requirements of this document, a procedure
should be used, whose performance is nearest the specified requirements.
1 Scope
This document specifies general performance requirements for procedures for determination of the
concentration of chemical agents in workplace atmospheres as required by the Chemical Agents Directive
98/24/EC (see [1]). These requirements apply to all measuring procedures, irrespective of the physical form of
the chemical agent (gas, vapour, suspended mat
...
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