EN 16523-2-2015 en Determination of material resistance to permeation by chemicals - Part 2 Permeation by gaseous chemical under conditions of continuous contact《材料对化学渗透的抵抗性的判定 第2部.pdf

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1、BSI Standards PublicationBS EN 16523-2:2015Determination of materialresistance to permeation bychemicalsPart 2: Permeation by gaseous chemicalunder conditions of continuous contactBS EN 16523-2:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16523-2:2015.BS

2、I, as a member of CEN, is obliged to publish EN 16523-2:2015 as a British Standard. However, attention is drawn to the fact that during the development of this European Standard, the UK committee voted against its approval as a European Standard.The following opinions regarding this standard and EN

3、16523-1 have been expressed by the UK committee: EN 16523-1 and EN 16523-2 were drafted with the intention of having one test method that can be applied to gloves, footwear and clothing. However, as written, these standards do not align with clause 4.3, Permeation test, from the chemical-protective

4、footwear standard, EN 13832-1:2006. The dimensions outlined for the design of the permeation cells in clause 6.1 are unnecessarily restrictive. The inter-laboratory trial inadvertently showed that the size of the test cell does not have a significant effect on the result while benefits can be gained

5、 by using different sized cells for closed loop and open loop testing, including maximized sensitivity and minimized uncertainty of measurement. The test methods described in EN 16523-1 and EN 16523-2 do not consider cumulative permeation. It is increasingly recognized that breakthrough time alone i

6、s a poor indicator of chemical protection, especially when considering the latest generation of barrier-laminate materials. ISO 6529 is available for readers to refer to as an alternative standard test method.Further commentary on EN 16523-1 and EN 16523-2 from UK Technical Committee PH/3/3 can be f

7、ound in National Annex NA of this document. The UK participation in its preparation was entrusted by Technical Committee PH/3, Protective clothing, to Subcommittee PH/3/3, Chemical, Biological, Radioactive and Nuclear Personal Protective Equipment.A list of organizations represented on this subcommi

8、ttee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 82571 2ICS 13.340

9、.40Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate Text affectedBS EN 16523-2:2015EUROPEAN S

10、TANDARD NORME EUROPENNE EUROPISCHE NORM EN 16523-2 February 2015 ICS 13.340.01 English Version Determination of material resistance to permeation by chemicals - Part 2: Permeation by gaseous chemical under conditions of continuous contact Dtermination de la rsistance des matriaux la permation par de

11、s produits chimiques - Partie 2: Permation par un produit chimique gazeux dans des conditions de contact continu Bestimmung des Widerstands von Materialien gegen die Permeation von Chemikalien - Teil 2: Permeation durch eine gasfrmige Chemikalie unter Dauerkontakt This European Standard was approved

12、 by CEN on 5 December 2014. 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 st

13、andards 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

14、 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungar

15、y, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELE

16、C Management Centre: 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 16523-2:2015 EBS EN 16523-2:2015EN 16523-2:2015 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative refere

17、nces 5 3 Terms and definitions .5 4 Test principle 5 5 Collecting media 5 6 Apparatus .6 6.1 General 6 6.2 Sampling compartment of the challenge chemical 6 6.3 Challenge gas introduction system .6 7 Test specimens 6 8 Procedure .6 8.1 Calibration 6 8.2 Preparation of test specimens and apparatus 6 8

18、.3 Test procedure .7 8.4 Calculation of results 8 8.5 Expression of results 8 8.6 Uncertainty of measurements 8 9 Test report 8 Annex A (informative) Example of appropriate technique for the detection of gaseous chemicals 9 Annex ZA (informative) Relationship between this European Standard and the E

19、ssential Requirements of EU Directive 89/686/EEC on PPE . 10 Bibliography . 11 BS EN 16523-2:2015EN 16523-2:2015 (E) 3 Foreword This document (EN 16523-2:2015) has been prepared by Technical Committee CEN/TC 162 “Protective clothing including hand and arm protection and lifejackets”, the secretariat

20、 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 August 2015 and conflicting national standards shall be withdrawn at the latest by August 2015. Attention is drawn to the

21、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 has been prepared under a mandate given to CEN by the European Commission and the European Free Tr

22、ade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. EN 16523, Determination of material resistance to permeation by chemicals, is composed of the following parts: Part 1:

23、 Permeation by liquid chemical under conditions of continuous contact; Part 2: Permeation by gaseous chemical under conditions of continuous contact the present document. NOTE CEN/TC 162 WG 13 has foreseen to work on other test methods in the future that will spread in several standard parts: Permea

24、tion by solid chemical under conditions of continuous contact; Permeation by chemical under conditions of intermittent contact; Permeation by chemical of seams, joins, assemblages and closers; Permeation by chemical in a form of droplets; Guide on testing and interpretation. According to the CEN-CEN

25、ELEC 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, Germany, Greece, Hungary, I

26、celand, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16523-2:2015EN 16523-2:2015 (E)Bibliography .National Annex NA Further commentary from UK Technical Commi

27、ttee PH/3/3 .12BS EN 16523-2:2015EN 16523-2:2015 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Test principle 5 5 Collecting media 5 6 Apparatus .6 6.1 General 6 6.2 Sampling compartment of the challenge chemical 6 6.3 Challenge gas in

28、troduction system .6 7 Test specimens 6 8 Procedure .6 8.1 Calibration 6 8.2 Preparation of test specimens and apparatus 6 8.3 Test procedure .7 8.4 Calculation of results 8 8.5 Expression of results 8 8.6 Uncertainty of measurements 8 9 Test report 8 Annex A (informative) Example of appropriate tec

29、hnique for the detection of gaseous chemicals 9 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC on PPE . 10 Bibliography . 11 BS EN 16523-2:2015EN 16523-2:2015 (E) 3 Foreword This document (EN 16523-2:2015) has been prepare

30、d by Technical Committee CEN/TC 162 “Protective clothing including hand and arm protection and lifejackets”, 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 b

31、y August 2015 and conflicting national standards shall be withdrawn at the latest by August 2015. 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 pat

32、ent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this docu

33、ment. EN 16523, Determination of material resistance to permeation by chemicals, is composed of the following parts: Part 1: Permeation by liquid chemical under conditions of continuous contact; Part 2: Permeation by gaseous chemical under conditions of continuous contact the present document. NOTE

34、CEN/TC 162 WG 13 has foreseen to work on other test methods in the future that will spread in several standard parts: Permeation by solid chemical under conditions of continuous contact; Permeation by chemical under conditions of intermittent contact; Permeation by chemical of seams, joins, assembla

35、ges and closers; Permeation by chemical in a form of droplets; Guide on testing and interpretation. 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, C

36、yprus, 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 the Uni

37、ted Kingdom. BS EN 16523-2:2015EN 16523-2:2015 (E)BS EN 16523-2:2015EN 16523-2:2015 (E) 4 Introduction This European Standard is used in conjunction with EN 16523-1. A future part of EN 16523 will explain the use of the series of standards EN 16523. This standard includes only the specific aspects l

38、inked with the testing with gaseous challenge chemicals. BS EN 16523-2:2015EN 16523-2:2015 (E) 5 1 Scope This European Standard specifies a test method for the determination of the resistance of protective clothing, gloves and footwear materials to permeation by potentially hazardous gaseous chemica

39、ls under the condition of continuous contact. This test method is applicable to the assessment of protection against gazeous chemicals that can be collected only by liquid or gaseous collecting media. This test method is not adapted for the assessment of gaseous chemical mixtures. This test method d

40、escribes the modifications to EN 16523-1 necessary to test against gaseous chemicals that can be collected by liquid or gaseous collecting media. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application

41、. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 16523-1:2015, Determination of material resistance to permeation by chemicals Part 1: Permeation by liquid chemical under conditions of

42、 continuous contact 3 Terms and definitions For the purposes of this document, the terms and definitions in EN 16523-1:2015 together with the following apply. 3.1 gaseous challenge chemical chemical that is gaseous at the test conditions (atmospheric pressure and 23 C) and that is used to challenge

43、the PPE (protective clothing, gloves and footwear) material specimen Note 1 to entry: Annex A lists the most common gaseous challenge chemicals. Other gases may be tested. Note 2 to entry: The gas may be either pure or diluted in air or in nitrogen. 4 Test principle The resistance of a PPE (protecti

44、ve clothing, gloves and footwear) material to permeation by a gaseous chemical is determined by measuring the normalized breakthrough time (NBT). In the permeation test apparatus, the PPE (protective clothing, gloves and footwear) material separates the challenge chemical from the collecting medium.

45、 The collecting medium, which can be a gas or, a liquid, is analysed quantitatively for its concentration of the chemical and thereby the amount of that chemical that has permeated the barrier as a function of time after its initial contact with the PPE (protective clothing, gloves and footwear) mat

46、erial. 5 Collecting media See EN 16523-1:2015, Clause 5. When selecting the collecting media, the following points should be taken in consideration: a) oxidation; BS EN 16523-2:2015EN 16523-2:2015 (E)BS EN 16523-2:2015EN 16523-2:2015 (E) 4 Introduction This European Standard is used in conjunction w

47、ith EN 16523-1. A future part of EN 16523 will explain the use of the series of standards EN 16523. This standard includes only the specific aspects linked with the testing with gaseous challenge chemicals. BS EN 16523-2:2015EN 16523-2:2015 (E) 5 1 Scope This European Standard specifies a test metho

48、d for the determination of the resistance of protective clothing, gloves and footwear materials to permeation by potentially hazardous gaseous chemicals under the condition of continuous contact. This test method is applicable to the assessment of protection against gazeous chemicals that can be col

49、lected only by liquid or gaseous collecting media. This test method is not adapted for the assessment of gaseous chemical mixtures. This test method describes the modifications to EN 16523-1 necessary to test against gaseous chemicals that can be collected by liquid or gaseous collecting media. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest