1、April 2010 Translation by DIN-Sprachendienst.English price group 18No 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!$aZl“1625573www.din.deDDIN EN 1076Workplace exposure Procedures for measuring gases and vapours using pumped samplers Requirements and test methodsEnglish translation of DIN EN 1076:2010-04Exposition am Arbeitsplatz Messung von Gasen und Dmpfen mit pumpenbetriebenen Probenahmeeinrichtungen
3、 Anforderungen und PrfverfahrenEnglische bersetzung von DIN EN 1076:2010-04Exposition sur les lieux de travail Procdures pour le mesurage des gaz et vapeurs laide dedispositifs de prlvement par pompage Exigences et mthodes dessaiTraduction anglaise de DIN EN 1076:2010-04SupersedesDIN EN 1076:1997-11
4、www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 44 pages04.10 DIN EN 1076:2010-04 2 A comma is used as the decimal marker. National foreword This document has been prepared by Technical Committee CEN/TC 137 “Assessment of workplace expo
5、sure to chemical and biological agents” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Sicherheitstechnische Grundstze (Safety Design Principles Standards Committee), Working Committee NA 095-03-01 AA Mess-strategien und Anforderungen an
6、Messverfahren. Amendments This standard differs from DIN EN 1076:1997-11 as follows: a) The title of the standard has been changed. b) The criteria for assessing the performance of procedures for measuring gases and vapours have been adapted to the general requirements for the performance of procedu
7、res for measuring chemical agents in workplace atmospheres as specified in DIN EN 482:2006-10. c) The calculation model for the uncertainty of measurement has been revised and brought in line with the Guide to the expression of uncertainty in measurement (GUM, published as DIN V ENV 13005:1999-06).
8、d) The classification scheme for sampler types has been modified. e) The informative annexes on the evaluation of pumped samplers by means of field tests have been deleted. f) The standard has been editorially revised. Previous editions DIN EN 1076: 1997-11 EUROPEAN STANDARD NORME EUROPENNE EUROPISC
9、HE NORM EN 1076 December 2009 ICS 13.040.30 Supersedes EN 1076:1997English Version Workplace exposure - Procedures for measuring gases and vapours using pumped samplers - Requirements and test methods Exposition sur les lieux de travail - Procdures pour le mesurage des gaz et vapeurs laide de dispos
10、itifs de prlvement par pompage - Exigences et mthodes dessaiExposition am Arbeitsplatz - Messung von Gasen und Dmpfen mit pumpenbetriebenen Probenahmeeinrichtungen - Anforderungen und Prfverfahren This European Standard was approved by CEN on 1 November 2009. CEN members are bound to comply with the
11、 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 Management Centre
12、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 Management Centre has the same status as the official v
13、ersions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia
14、, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN natio
15、nal Members. Ref. No. EN 1076:2009: EEN 1076:2009 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Symbols and abbreviated terms 55 Types of samplers .76 Requirements .76.1 General 76.2 Sampler requirements .76.3 Measuring procedure requiremen
16、ts . 107 General test conditions 127.1 Reagents 127.2 Apparatus 127.3 Independent method 137.4 Generation of the calibration gas mixture . 138 Test methods . 148.1 General . 148.2 Sampler test methods 148.3 Measuring procedure test methods 158.4 Uncertainty of measurement . 229 Test report . 23Annex
17、 A (informative) Examples for the determination of the breakthrough volume 24A.1 Direct method 24A.2 Chromatographic method 24Annex B (informative) Estimation of uncertainty of measurement . 26B.1 General . 26B.2 Uncertainty associated with sampled air volume . 26B.3 Uncertainty associated with samp
18、ling efficiency 28B.4 Uncertainty associated with sample storage and transportation 28B.5 Uncertainty associated with method recovery 28B.6 Uncertainty associated with method variability 32B.7 Calculation of combined standard uncertainty . 35Annex C (informative) Example of estimation of expanded un
19、certainty 37Bibliography . 41DIN EN 1076:2010-04 EN 1076:2009 (E) 3 Foreword This document (EN 1076:2009) 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
20、 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. Attention is drawn to the possibility that some of the elements of this document may b
21、e 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 1076:1997. The major technical changes between this European Standard and the previous edition are as follows: a) adaptation of the framework fo
22、r assessing the performance of procedures for measuring gases and vapours against the general requirements for the performance of procedures for measuring chemical agents in workplace atmospheres as specified in EN 482; b) revision of the calculation model for the uncertainty of measurement to compl
23、y with EN 482 and ENV 13005; c) modification of the classification scheme for sampler types; d) deletion of the informative annexes on the evaluation of pumped samplers by means of field tests. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following c
24、ountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
25、Spain, Sweden, Switzerland and the United Kingdom. DIN EN 1076:2010-04 EN 1076:2009 (E) 4 Introduction This European Standard provides a framework for assessing the performance of procedures for measuring gases and vapours against the general requirements for the performance of procedures for measur
26、ing chemical agents in workplace atmospheres as specified in EN 482. It enables manufacturers and users of pumped samplers and developers and users of procedures for measuring gases and vapours to adopt a consistent approach to method validation. DIN EN 1076:2010-04 EN 1076:2009 (E) 5 1 Scope This E
27、uropean Standard specifies performance requirements and test methods under prescribed laboratory conditions for the evaluation of pumped samplers used in conjunction with an air sampling pump and of procedures using these samplers for the determination of gases and vapours in workplace atmospheres.
28、This European Standard is applicable to pumped samplers and measuring procedures using these samplers in which sampling and analysis are carried out in separate stages. This European Standard is not applicable to: pumped samplers which are used for the direct determination of concentrations, for exa
29、mple, length-of-stain detector tubes; samplers which rely on sorption into a liquid, and subsequent analysis of the solution (bubblers). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appl
30、ies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 482:2006, Workplace atmospheres General requirements for the performance of procedures for the measurement of chemical agents EN 838, Workplace atmospheres Diffusive samplers for the det
31、ermination of gases and vapours Requirements and test methods EN 1232:1997, Workplace atmospheres Pumps for personal sampling of chemical agents Requirements and test methods EN 1540:1998, Workplace atmospheres Terminology EN ISO 8655-2, Piston-operated volumetric apparatus Part 2: Piston pipettes (
32、ISO 8655-2:2002) EN ISO 8655-6, Piston-operated volumetric apparatus Part 6: Gravimetric methods for the determination of measurement error (ISO 8655-6:2002) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 482:2006 and EN 1540:19981)apply. 4 Symbols a
33、nd abbreviated terms For the purposes of this document, the following symbols and abbreviations apply. NOTE See 8.4 and Annex B for symbols used in conjunction with uncertainty of measurement only. CRM certified reference material 1) EN 1540:1998 is currently subject to revision. Until the revised E
34、N is published the definitions given in EN 482:2006 take precedence. DIN EN 1076:2010-04 EN 1076:2009 (E) 6 LV limit value ma1 mass of analyte desorbed from tube blank, in micrograms (g) ma2 mass of analyte desorbed from spiked tube, in micrograms (g) ma,lt maximum mass uptake of analyte in a leak t
35、est performed on a sealed sampler used for making measurements for comparison with a long-term limit value, in milligrams (mg) ma,st maximum mass uptake of analyte in a leak test performed on a sealed sampler used for making measurements for comparison with a short-term limit value, in milligrams (m
36、g) 1m LV,lt is the long-term limit value of the substance given as volume concentration, in milligrams per cubic metre (mg/m); 240 is the reference period, in minutes (min); 0,01 is the nominal minimum flow rate for type B samplers, in litres per minute (l/min); 10-3 is a factor applied to convert t
37、he nominal minimum flow rate from litres per minute (l/min) to cubic metres per minute (m/min); 1/3 is a factor applied to calculate the maximum permitted leakage. When tested in accordance with 8.2.2, for substances with a short-term limit value the maximum leakage, i.e. the maximum mass uptake of
38、analyte above the blank value (see 6.3.2.3), shall be less than ma,stcalculated according to Equation (2), in milligrams (mg), as follows: )100,01155,0(313-sta,stLV,= m (2) where ma,st is the maximum mass uptake of analyte in a leak test performed on a sealed sampler used for making measurements for
39、 comparison with a short-term limit value; LV,st is the short-term limit value of the substance given as volume concentration, in milligrams per cubic metre (mg/m); 15 is the reference period, in minutes (min); 0,01 is the nominal minimum flow rate for type B samplers, in litres per minute (l/min);
40、DIN EN 1076:2010-04 EN 1076:2009 (E) 9 10-3is a factor applied to convert the nominal minimum flow rate from litres per minute (l/min) to cubic metres per minute (m/min); 1/3 is a factor applied to calculate the maximum permitted leakage. 6.2.3 Shelf life (for impregnated supports) The manufacturer
41、shall specify the shelf life of the sampler when stored in its original package. During this period the sampler shall fulfil all requirements. 6.2.4 Sample identification (for commercially available sorbent tubes and impregnated filters) The sampler shall have a suitable area for sample identificati
42、on by the user. 6.2.5 Marking Samplers shall be marked with at least the following: manufacturers name; product identification; indication of the direction of air flow, if necessary; batch identification; shelf life (if applicable); number of this European Standard. If required due to limited space,
43、 the marking may be placed on the packaging of the sampler. However, the manufacturers name, product identification and direction of air flow shall be indicated on the sampler. 6.2.6 Instructions for use The instructions for use supplied with the sampler shall be in the language(s) of the country wh
44、ere the sampler is to placed on the market. They shall contain at least the following information: a) designated use (general purpose for a number of gases and vapours or, specific, for a particular gas or vapour, see 6.1); b) blank value (only when used for a particular gas or vapour, see 6.1); c)
45、directions for proper handling of the sampler, including opening and closing; d) general information on the principle of use, for example, sorbent type, reaction of the reagent impregnated solid, desorption method; e) information on storage and transport; f) information on health or environmental ha
46、zards and method of disposal. DIN EN 1076:2010-04 EN 1076:2009 (E) 10 6.3 Measuring procedure requirements 6.3.1 Sampling procedure requirements 6.3.1.1 General Sampling conditions (sample volume, flow rate and sampling time) shall be established according to the LV assigned to the compounds of inte
47、rest, e.g. short-term limit value, long-term limit value or both. 6.3.1.2 Sample volume The recommended sample volume shall be less than two-third of the breakthrough volume measured in accordance with 8.3.1.3. 6.3.1.3 Air flow rate 6.3.1.3.1 Impregnated filters When tested according 8.3.1.4, the ma
48、ximum air flow rate shall be 90 % of the flow rate at which the breakthrough volume drops by 5 %. 6.3.1.3.2 Thermal desorption samplers (Type B samplers) A minimum air flow rate shall be established according to the test in 8.3.1.5. 6.3.1.4 Storage conditions after sampling The storage conditions af
49、ter sampling shall be specified. When tested in accordance with 8.3.1.6, the mean value of the recovery after storage shall not differ by more than 10 % from the value before storage. 6.3.2 Analytical procedure requirements 6.3.2.1 Analytical quantification limit The quantification limit shall be lower than or equal to the calculated mass of analyte that would be collected for the
