1、BRITISH STANDARD BS EN 342:2004 Incorporating corrigendum March 2008 Protective clothing Ensembles and garments for protection against cold ICS 13.340.10 BS EN 342:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 July 2004 BSI 2008 ISB
2、N 978 0 580 62770 5 National foreword This British Standard is the UK implementation of EN 342:2004, incorporating corrigendum March 2008. It supersedes DD ENV 342:1998 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PH/3, Protective clothing, to Subc
3、ommittee PH/3/1, Clothing for protection against general hazards. A list of organizations represented on this subcommittee 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 appli
4、cation. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication Date Comments 30 September 2008 Implementation of CEN corrigendum March 2008. Replacement of Table 1EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN342 July2004 I
5、CS13.340.10 SupersedesENV342:1998 Englishversion ProtectiveclothingEnsemblesandgarmentsforprotection againstcold VtementsdeprotectionEnsemblesvestimentaireset articlesdhabillementdeprotectioncontrelefroid SchutzkleidungKleidungssystemeundKleidungsstcke zumSchutzgegenKlte ThisEuropeanStandardwasappro
6、vedbyCENon16April2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCe
7、ntralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenatio
8、nalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION
9、 COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN342:2004:E IncorporatingcorrigendumMarch2008EN 342:2004 (E) 2 Contents page Foreword3 Introdu
10、ction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Performance assessment and requirements7 5 Testing methods 8 6 Sizes9 7 Marking and care labelling9 8 Information supplied by the manufacturer .9 Annex A (normative) Standard reference clothing for use with protective clothing
11、against cold.11 Annex B (informative) Levels of performance.13 Annex C (normative) Calibration and measurements for resultant effective thermal insulation.15 Annex D (informative) Garment design features.17 Annex ZA (informative) Relationship between this European Standard and the Essential Requirem
12、ents of EU Directive 89/686/EEC Personal Protective Equipment 18 Bibliography 19 BS EN 342:2004EN 342:2004 (E) 3 Foreword This document (EN 342:2004) has been prepared by Technical Committee CEN/TC 162 “Protective clothing including hand and arm protection and lifejackets”, the secretariat of which
13、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 January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. This document supersedes ENV 342:
14、1998. 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 89/686/EEC Personal Protective Equipment. For relationship with EU Directive, see informative Annex ZA, which is
15、an integral part of this document. 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,
16、Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 342:2004EN 342:2004 (E) 4 Introduction This European Standard is published to achieve a common basis in Europe for requiremen
17、ts and test methods for protective clothing ensembles and garments against cold in the interest of especially 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.
18、 Thermal insulation of the ensemble or garment and the air permeability are the essential properties to be 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 referenc
19、e clothing in order to account for the effect of layers, fit, drape, coverage and shape. In this respect this standard differs from many other standards specifying only material properties. The insulation is tested with new ensembles and garments. It should be recognized that ensembles and garments
20、in frequent use may 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 may considerably increase convective heat losses. Therefore, the air permeability of the outer garment material i
21、s an important factor to be taken into account in relation to the protection of the wearer against cold. The insulation requirements and air effects for given conditions can be assessed by methods given in ENV ISO 11079. By this method the resultant effective thermal insulation value l clercan be de
22、termined and used to define temperature ranges (see Tables B.1 and B.2). Therefore the protective value of a clothing ensemble is evaluated by comparing its measured insulation value and the calculated required insulation value (IREQ). This comparison is the basis of Tables B.1and B.2. This guidance
23、 information for the selection of the appropriate cold protective garment(s) is one of the benefits, if the resultant effective thermal insulation value l clerof the garment(s) has been measured on a thermal manikin. Sweating should be avoided in continuous cold exposure, since moisture absorption w
24、ill progressively reduce insulation. This is best controlled 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 b
25、utton-up, than by passive diffusion through layers of garments. When the environment is below freezing, very little, if any, water vapour escapes through the material because of condensation and, eventually, it can freeze in clothing. In some conditions with intermittent exposures (e.g. cold store w
26、ork) 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 may contribute to improved heat balance and thermal comfort. For protection of a specific part of the body, EN 14058 applies. BS EN 342:2004EN 342:2004
27、 (E) 5 1 Scope This European Standard specifies requirements and test methods for performance of clothing ensembles (i.e. two piece suits or coveralls) and of single garments for protection against cold environment. It does not include specific requirements for head wear, footwear and gloves intende
28、d to prevent local cooling. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies
29、. EN 340, Protective clothing General requirements. EN 20811, Textiles Determination of resistance to water penetration Hydrostatic pressure test. EN 31092, Textiles Determination of physiological properties Measurement of thermal and water-vapour resistance under steady-state conditions (sweating g
30、uarded-hotplate test) (ISO 11092:1993.) EN ISO 9237, Textiles Determination of permeability of fabrics to air (ISO 9237:1995). EN ISO 15831, Clothing Physiological effects Measurement of thermal insulation by means of a thermal manikin (ISO 15831:2004). EN ISO 4674-1, Rubber- or plastics-coated fabr
31、ics Determination of tear resistance Part 1: Constant rate of tear methods (ISO 4674-1:2003). 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 cold environment environment characterized by the combination of humidity and wind at air t
32、emperature below 5 C NOTE See ENV ISO 11079. 3.2 garment individual component of a clothing ensemble, the wearing of which provides protection to the part of the body that it covers 3.3 ensemble clothing consisting of a two-piece suit or one-piece suit (coverall) or a number of garments covering the
33、 body, except head, hands and feet 3.4 outer shell material outermost material of which the protective clothing is made BS EN 342:2004EN 342:2004 (E) 6 3.5 liner insert with a watertight property 3.6 thermal lining non-watertight layer providing thermal insulation 3.7 thermal liner layer with a wate
34、rtight property providing additional thermal insulation 3.8 lining innermost material without watertight property 3.9 thermal resistance (insulation) R cttemperature difference between the two faces of a material divided by the resultant heat flux per unit area in the direction of the gradient. The
35、dry heat flux may consist of one or more conductive, convective and radiant components. Thermal resistance R ct , expressed in square metres kelvin per watt, is a quantity specific to textile materials or composites which determines the dry heat flux across a given area in response to a steady appli
36、ed temperature gradient 3.10 water vapour resistance R 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 gradient. The evaporative heat flux may consist of both diffusive and convective componen
37、ts. Water vapour resistance R et , expressed in square metres pascal per watt, 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 3.11 effective thermal insul
38、ation I clethermal insulation from skin to outer clothing surface under defined conditions measured with a stationary manikin. The effective thermal insulation value, I cle , is determined in relation to the naked body surface area. The value is given in m K/W 3.12 resultant effective thermal insula
39、tion I clerthermal insulation from skin to outer clothing surface under defined conditions measured with or calculated for a moving manikin. The resultant effective thermal insulation value, I cler , is determined in relation to the naked body surface area. The value is given in m K/W 3.13 insulatio
40、n required IREQ required resultant thermal insulation calculated on the basis of the thermal parameters of the environment (e.g. air temperature, mean radiant temperature, air velocity, relative humidity) and the body metabolism NOTE See ENV ISO 11079. BS EN 342:2004EN 342:2004 (E) 7 3.14 resistance
41、 to water penetration WP hydrostatic pressure supported by a material as a measure of the opposition to the passage of water through the material 4 Performance assessment and requirements 4.1 General The ergonomic requirements of EN 340 shall be applied. 4.2 Thermal insulation, I cleand I clerRequir
42、ements for thermal insulation of the human body in a specific cold environment are assessed on the basis of ENV ISO 11079. To be within the scope of this standard, the resultant effective thermal insulation I clershall have a minimum value of 0,310 m 2 K/W, when measured in accordance with 5.1. Opti
43、onally, the effective thermal insulation I clevalue can be measured according to 5.1. Thermal insulation of a clothing ensemble or garment is classified on the basis of measured insulation values. Performance of a clothing ensemble or garment in terms of preserving heat balance at normal body temper
44、ature depends on internal body heat production. Therefore the protective value of a clothing ensemble or garment is evaluated by comparing its measured insulation value and the calculated required insulation value (IREQ). This comparison is the basis of Tables B.1 and B.2. 4.3 Air permeability, AP W
45、hen tested in accordance with 5.2, the air permeability AP shall be in accordance with Table 1. Table 1 Classification of air permeability AP AP mm/s Class 100 AP 1 5 13 000 2 BS EN 342:2004EN 342:2004 (E) 8 4.5 Water vapour resistance, R etIf water penetration resistance is required as in 4.4 then
46、water vapour resistance R etshall be measured in accordance with 5.4. In this case, the water vapour resistance R etof the combination of all layers of the garment together (without underwear) shall be less than 55 m 2 Pa/W. 4.6 Tear resistance of outer shell material When tested in accordance with
47、5.5, the tearing force of the outer shell material (with the exception of vests and excluding elasticated and knitted materials) shall be at minimum 25 N in both orthogonal directions of the material. 5 Testing methods 5.1 Thermal insulation, I cleand I clerThe effective thermal insulation shall be
48、measured with a stationary manikin calibrated according to Annex C with the test procedure as given in EN ISO 15831.The resultant effective thermal insulation is measured with a moving manikin calibrated according to Annex C with the test procedure as given in EN ISO 15831. For complete ensembles, but not for single garments, the resultant effective thermal insulation I cleris obtained either with a moving manikin or by correcting the value obtained with the stationary manikin. The correction formula is given in An
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