EN 342-2017 en Protective clothing - Ensembles and garments for protection against cold.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Protective clothing - Ensembles and garments for protection against coldBS EN 342:2017National forewordThis British Standard is the UK implementation of EN 342:2017. It supersedes BS EN 342:2004, which is withdrawn.The

2、UK participation in its preparation was entrusted to Technical Committee PH/3/1, General Personal Protective Equipment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a cont

3、ract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 92269 5ICS 13.340.10Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the au

4、thority of the Standards Policy and Strategy Committee on 31 December 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 342:2017EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 342November 2017ICS 13.340.10 Supersedes EN 342:2004EUROPEAN COMMITTEE FOR STANDA

5、RDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN Ref. No. EN 342:2017: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersProtective clothing - Ensembles and

6、 garments for protection against coldVtements de protection - Ensembles vestimentaires et articles dhabillement de protection contre le froidSchutzkleidung - Kleidungssysteme und Kleidungsstcke zum Schutz gegen KlteThis European Standard was approved by CEN on 4 September 2017.CEN members are bound

7、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-

8、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

9、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, Italy, Latvia, Lithuania, Luxem

10、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN 342:2017 (E)European foreword 3Introduction . 41 Scope . 52 Normative references 53 Terms and definitions . 54 Performance assessment and

11、requirements 74.1 General requirements and innocuousness . 74.1.1 General requirements 74.1.2 Innocuousness . 74.2 Resultant effective thermal insulation I cler84.3 Air permeability, AP 84.4 Resistance to water penetration, WP 84.5 Water vapour resistance, Ret and thermal resistance R ct. 84.6 Mecha

12、nical and physical properties . 84.6.1 Tear resistance of outer shell material . 84.6.2 Burst strength of knitted outer shell 94.6.3 Flexibility of coated or laminated material . 94.7 Dimensional change due to cleaning . 95 Pretreatment 96 Test methods . 96.1 Sampling . 96.2 General requirements and

13、 innocuousness . 96.2.1 General requirements 96.2.2 Innocuousness . 96.3 Resultant effective thermal insulation I cler96.4 Air permeability, AP . 106.5 Resistance to water penetration, WP . 106.6 Water vapour resistance, R etand thermal resistance R ct106.7 Mechanical and physical properties 106.7.1

14、 Tear resistance of outer shell material 106.7.2 Burst strength of knitted outer shell material 106.7.3 Flexibility of coated and laminated material 106.8 Dimensional change due to cleaning 107 Size designation 108 Marking and care labelling .119 Information supplied by the manufacturer 11Annex A (i

15、nformative) Significant changes between this document and the previous edition .12Annex B (normative) Standard clothing for the testing of protective clothing against cold .13Annex C (informative) Temperature ranges of utility 15Annex D (normative) Calibration and measurements for resultant effectiv

16、e thermal insulation 17Annex E (normative) Calibration garments A, B and C .18Annex ZA (informative) Relationship between this European Standard and the essential requirements of EU Directive 89/686/EEC aimed to be covered 20Bibliography .212Contents PageBS EN 342:2017EN 342:2017 (E)European forewor

17、dThis document (EN 342:2017) has been prepared 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 ident

18、ical text or by endorsement, at the latest by May 2018, and conflicting national standards shall be withdrawn at the latest by May 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identify

19、ing any or all such patent rights.This document supersedes EN 342:2004.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 in

20、formative Annexes ZA and ZB, which are an integral part of this document.Regarding the most significant changes that have been made in this new edition, see Annex A.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impleme

21、nt this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, 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, S

22、erbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.3BS EN 342:2017EN 342:2017 (E)IntroductionThis document is published to achieve a common basis in Europe for requirements and test methods for protective clothing ensembles and garments against cold in the interest

23、of manufacturers, test institutes and end-users. The measured properties and their subsequent classification are intended to ensure an adequate protection level under different user conditions. Thermal insulation of the ensemble or garment and the air permeability are the essential properties to be

24、tested and marked on the label.Thermal insulation is the most important property and it is measured by using a full-sized thermal manikin with the ensemble or garment and accompanying standard clothing in order to account for the effect of layers, fit, drape, coverage and shape.In this respect this

25、standard differs from many other standards specifying only material properties. The insulation is tested with complete ensembles and garments after a defined pretreatment ensuring that processing the garment considers mechanical aspects making tests like flexibility or abrasion unnecessary. It shoul

26、d be recognized that ensembles and garments in frequent use can lose significant insulation capacity due to laundering and wear. In general high quality products and well maintained clothing are less affected in this respect.Wind can considerably increase convective heat losses. Therefore, the air p

27、ermeability of the outer garment material is an important factor to be taken into account in relation to the protection of the wearer against cold.In cold conditions as defined by the standard the possible exposure to water is seldom and considered to be limited, therefore this standard contains onl

28、y optional requirements to water penetration. In case the exposure to water is not limited, EN 343 applies.The resultant effective thermal insulation value I clercan be used to assess temperature ranges according to Tables C.1 and C.2. This guidance information for the selection of the appropriate c

29、old protective garment(s) is one of the benefits, if the resultant effective thermal insulation value I clerof the garment(s) has been measured on a thermal manikin.Sweating should be avoided in continuous cold exposure, since moisture absorption will progressively reduce insulation. This is best co

30、ntrolled by selecting optimal rather than maximal insulation and flexible, adjustable garments rather than fixed and closed ensembles. It is more efficient to get rid of heat and moisture by ventilation of clothing through adjustable openings and button-up, than by passive diffusion through layers o

31、f garments. In some conditions with intermittent exposures (e.g. cold store work) or in conditions close to and above 0 C the water vapour resistance value of fabrics become increasingly important and fabrics with a low value can contribute to improved heat balance and thermal comfort.4BS EN 342:201

32、7EN 342:2017 (E)1 ScopeThis European Standard specifies requirements and test methods for the performance of clothing ensembles (i.e. g two piece suits or coveralls) for protection against the effects of cold environments equal to or below 5C (see Annex C). These effects comprise not only low air te

33、mperatures but also humidity and air velocity.Requirements and test methods of garments for protection against cool environments are specified in EN 14058.The protective effects and requirements of footwear, gloves and separate head wear are excluded from the scope of this standard.2 Normative refer

34、encesThe 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 edition of the referenced document (including any amendments) applies.EN

35、20811:1992, Textiles Determination of resistance to water penetration Hydrostatic pressure testEN ISO 4674-1:2016, Rubber- or plastics-coated fabrics Determination of tear resistance Part 1: Constant rate of tear methods (ISO 4674-1:2016)EN ISO 9237:1995, Textiles Determination of permeability of fa

36、brics to air (ISO 9237:1995)EN ISO 11092:2014, Textiles Physiological effects Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test) (ISO 11092:2014)EN ISO 13688:2013, Protective clothing General requirements (ISO 13688:2013)EN ISO 13938-1:1

37、999, Textiles Bursting properties of fabrics Part 1: Hydraulic method for determination of bursting strength and bursting distension (ISO 13938-1:1999)EN ISO 13938-2:1999, Textiles Bursting properties of fabrics Part 2: Pneumatic method for determination of bursting strength and bursting distension

38、(ISO 13938-2:1999)EN ISO 15831:2004, Clothing Physiological effects Measurement of thermal insulation by means of a thermal manikin (ISO 15831:2004)ISO 4675:2017, Rubber- or plastics-coated fabrics - Low-temperature bend testISO 7000:2014, Graphical symbols for use on equipment Registered symbols3 T

39、erms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1cold environmentenvironment characterized by the combination of humidity and wind (wind-chill effect) at air temperature equal to or less than 5 C3.2garmentindividual component of a clothing ensemble

40、covering a part of the body, except separate garment for head, hands and feet and providing protection against hypothermia5BS EN 342:2017EN 342:2017 (E)3.3ensembleclothing consisting of a two-piece suit or one-piece suit (coverall) or a number of garments covering the body, except separate garment f

41、or head, hands and feet and providing protection against hypothermia3.4thermal liningnon-watertight layer providing thermal insulation3.5thermal resistanceinsulationR cttemperature difference between the two faces of a material divided by the resultant heat flux per unit area in the direction of the

42、 gradientNote 1 to entry: It is a quantity specific to textile materials or composites which determines the dry heat flux across a given area in response to a steady applied temperature gradient. The dry heat flux can consist of one or more conductive, convective and radiant components.Note 2 to ent

43、ry: The thermal resistance is expressed in square metres kelvin per watt.SOURCE: EN ISO 11092:2014, 2.13.6water vapour resistanceR etwater-vapour pressure difference between the two faces of a material divided by the resultant evaporative heat flux per unit area in the direction of the gradientNote

44、1 to entry: It is a quantity specific to textile materials or composites, which determines the “latent” evaporative heat flux across a given area in response to a steady applied water-vapour pressure gradient. The evaporative heat flux can consist of both diffusive and convective components.Note 2 t

45、o entry: The water-vapour resistance is expressed in square metres pascal per watt.SOURCE: EN ISO 11092:2014, 2.23.7water-vapour permeability indexi mtratio of thermal and water-vapour resistances in accordance with Formula (1): (1)where S = 60 Pa/KNOTE The water-vapour permeability index is dimensi

46、onless and has values between 0 and 1. A value of 0 implies that the material is water-vapour impermeable; that is, it has infinite water-vapour resistance, and a material with a value of 1 has both the thermal resistance and water-vapour resistance of an air layer of the same thickness.SOURCE: EN I

47、SO 11092:2014, 2.36 BS EN 342:2017EN 342:2017 (E)3.8resultant effective thermal insulationI clerthermal insulation from skin to outer clothing surface under defined conditions measured with or calculated for a moving manikin determined in relation to the naked body surface areaNOTE I cleris expresse

48、d in square metres Kelvin per watt.3.9resistance to water penetrationWP hydrostatic pressure supported by a material as a measure of the opposition to the passage of water through materialNOTE WP is expressed in pascal.3.10air permeabilityAP velocity of an air flow passing perpendicularly through a

49、test specimen under specified conditions of test area, pressure drop and timeNOTE AP is expressed in millimetre per second.SOURCE: EN ISO 9237:1995, 3.13.11outer shell materialoutermost material of which the protective clothing is made4 Performance assessment and requirements4.1 General requirements and innocuousness4.1.1 General requirementsWhen tested in accordance with 6.2.1 the following requirements shall be met: the garment shall not have rough, sharp or hard surfaces that irritate or injure the user; the jacket/coat or coverall