EN ISO 18640-2-2018 en Protective clothing for firefighters - Physiological impact - Part 2 Determination of physiological heat load caused by protective clothing worn by firefight.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Protective clothing for firefighters - Physiological impactPart 2: Determination of physiological heat load caused by protective clothing worn by firefightersBS EN ISO 186402:2018National forewordThis British Standard i

2、s the UK implementation of EN ISO 186402:2018. It is identical to ISO 186402:2018.The UK participation in its preparation was entrusted to Technical Committee PH/14, Firefighters personal protective equipment.A list of organizations represented on this committee can be obtained on request to its sec

3、retary.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 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 89247 9ICS 13.340.10Compliance with a British Standard canno

4、t confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 186402:2018EUROPEAN STANDARDNORME EUROPENNEEUROPIS

5、CHE NORMEN ISO 18640-2May 2018ICS 13.340.10EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN ISO 186402:2018: EAll rights of exploitation in any form and by any means

6、 reserved worldwide for CEN national MembersProtective clothing for firefighters Physiological impact Part 2: Determination of physiological heat load caused by protective clothing worn by firefighters (ISO 186402:2018)Vtements de protection pour sapeurspompiers - Impact physiologique - Partie 2: Dt

7、ermination de la dperdition de chaleur provoque par les vtements de protection ports par les sapeurspompiers (ISO 186402:2018)Schutzkleidung fr die Feuerwehr Physiologische Wrmebelastung Teil 2: Bestimmung der physiologischen Wrmebelastung ausgelst durch von Feuerwehrleuten getragene Schutzkleidung

8、(ISO 186402:2018)This European Standard was approved by CEN on 2 January 2018.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. Uptodate lists and biblio

9、graphical references concerning such national standards may be obtained on application to the CENCENELEC 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 responsibi

10、lity of a CEN member into its own language and 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

11、of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 18640-2:2018 (E)European forewordThis

12、 document (EN ISO 186402:2018) has been prepared by Technical Committee ISO/TC 94 “Personal safety - Personal protective equipment“ in collaboration with Technical Committee CEN/TC 162 “Protective clothing including hand and arm protection and lifejackets” the secretariat of which is held by DIN.Thi

13、s 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 November 2018, and conflicting national standards shall be withdrawn at the latest by November 2018.Attention is drawn to the possibility that some of

14、the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.According to the CENCENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European St

15、andard: 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, Serbia, Slovakia, Sl

16、ovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 186402:2018 has been approved by CEN as EN ISO 186402:2018 without any modification.iiBS EN ISO 186402:2018ISO 18640-2:2018Foreword ivIntroduction v1 Scope .12 Normative references 13 Terms and defini

17、tions .14 Symbols and abbreviations . 35 Evaluation method . 35.1 General . 35.2 Firefighting scenarios . 35.2.1 Standard scenario for THS measurements 35.3 THS measurement 45.3.1 General 45.3.2 Apparatus and software 45.3.3 Heat flux 45.3.4 Wicking layer correction . 55.3.5 Skin diffusion (Esk) 65.

18、3.6 Data exchange with physiological model 65.3.7 Measurement control . 66 Measurement .76.1 General . 76.2 THS measurement 76.2.1 Test preparation . 76.2.2 Software settings . 76.2.3 Sampling and test specimen 76.2.4 Measurement procedure . 76.2.5 Data evaluation . 87 Test report .87.1 General . 87

19、.1.1 Specimen identification . 87.1.2 Measurement conditions 87.1.3 Results of THS measurement 87.2 Predicted physiological parameters . 97.3 Contents of test report . 9Annex A (normative) Single-sector Thermo-physiological Human Simulator (THS) .10Annex B (informative) Example measurement protocol

20、according to ISO 18640-2 14Annex C (informative) Scenarios for testing and limitation of system.15Bibliography .17 ISO 2018 All rights reserved iiiContents PageBS EN ISO 186402:2018ISO 18640-2:2018ForewordISO (the International Organization for Standardization) is a worldwide federation of national

21、standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International

22、 organizations, governmental and nongovernmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for

23、its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/

24、directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in

25、 the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO

26、 specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committ

27、ee ISO/TC 94, Personal safety Protective clothing and equipment, Subcommittee SC 14, Firefighters personal equipment.A list of all parts in the ISO 18640 series can be found on the ISO website.iv ISO 2018 All rights reservedBS EN ISO 186402:2018ISO 18640-2:2018IntroductionProtective clothing for (st

28、ructural) firefighting may have a serious physiological impact1),2)on the wearer and a serious effect on the acute physical condition of the wearer during activities with increased metabolic heat production34. Protective clothing impedes heat exchange by sweat evaporation and therefore maintenance o

29、f a constant core body temperature and thermal homeostasis is disturbed. This could increase the risk of heat strain and subsequently impact on the length and time that the firefighter is able to work safely. If this is identified in a risk assessment, it is important that (thermal) physiological pa

30、rameters are obtained to ensure the suitability of the protective clothing chosen under the expected conditions of use. The assessment of the physiological impact of the protective clothing provides important information about the effect on individuals undertaking different tasks in various environm

31、ental conditions. In ISO 186401, relevant physical parameters of protective clothing are measured with a Sweating torso. Standard Sweating torso measurements provide physical parameters about combined and complex heat and moisture transfer (ISO 186401). By coupling the sweating torso to a mathematic

32、al model for thermophysiological responses, the thermophysiological impact of protective clothing is estimated and the maximum exposure time for defined environmental conditions and a defined activity protocol are predicted by Thermal Human Simulator (THS) measurements.The purpose of this document i

33、s to consider aspects of protective clothing performance that cannot be determined by tests described in other standards. The aim of this document is to quantify the thermo-physiological impact of protective garments for (structural) firefighting under relevant exposures. This document provides the

34、background for the specification of a minimum level of performance requirements during defined firefighting scenarios for the assessed firefighters protective clothing by calculation of the maximum allowable work duration in order to avoid heat stroke.NOTE The method allows to characterizing the the

35、rmophysiological impact for different levels of complexity. This includes the characterisation of the single PPE ensembles (standard procedure) as well as the characterisation of protective clothing ensembles including under wear and protective clothing, including air layers or including design feat

36、ures of protective clothing ensembles (e.g. pockets, reflective strips) as optional procedures3).1) Nunneley (1989) reported a significant physiological burden due to the protective clothing upon the wearer, both in the form of increased metabolic rate and reduced heat dissipation.2) Taylor (2012) s

37、howed that the relative influence of the clothing on oxygen cost was at least three times that of the breathing apparatus.3) This listing of standard and optional procedures is a first proposal for prioritization. The expressiveness of the different levels of complexity for the characterisation of t

38、he thermophysiological impact needs to be further investigated. Results will be presented at the next ballot. ISO 2018 All rights reserved vBS EN ISO 186402:2018This page deliberately left blankProtective clothing for firefighters - Physiological impact Part 2: Determination of physiological heat lo

39、ad caused by protective clothing worn by firefighters1 ScopeThis document specifies a method for evaluating the thermo-physiological impact of protective fabric ensembles and potentially protective clothing ensembles in a simulated activity under defined relevant conditions for firefighters.This doc

40、ument is intended to be used to assess the thermophysiological impact of protective fabric ensembles and potentially protective clothing ensembles but not the risk for heat stress due to actual fire conditions. The results of this test method can be used as elements of characterisation and compariso

41、n of thermophysiological impact of various types of protective fabric ensembles and potentially protective clothing ensembles.Default measurements are undertaken on fabric samples representing the garment or protective clothing combination. Optionally and in addition to the standard test method, the

42、 same testing protocol can be applied to characterise protective clothing ensembles including underwear, air layers and certain design features4). In addition measurements on readymade garments are optionally possible.NOTE The presently used evaluation methods are only validated for structural firef

43、ighting garments.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced doc

44、ument (including any amendments) applies.ISO 11092, Textiles Physiological effects Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test)ISO 186401, Protective clothing for firefighters-physiological impact Part 1: Measurement of coupled hea

45、t and mass transfer with the sweating torso3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 18640-1 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online browsing platfor

46、m: available at https:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/4) A study conducted at Empa (Swiss Federal Laboratories for Materials Science and Technology, Switzerland) showed good correlation between results of standard torso tests (without both underwear and air

47、 layers on fabrics) to tests on fabrics with underwear, tests on fabrics with underwear and air layers and test on readymade garments (with underwear and with or without air layers) of the same material composition. Due to the different thermal insulation of the systems direct comparison of the resu

48、lts is not possible.INTERNATIONAL STANDARD ISO 18640-2:2018 ISO 2018 All rights reserved 1BS EN ISO 186402:2018ISO 18640-2:20183.1core body temperatureT cotemperature of deep body tissues of the human body3.2firefighting scenarioset of environmental conditions, a defined workload and a defined expos

49、ure time relevant for a firefighters task3.3heart ratenumber of heartbeats per unit of timeNote 1 to entry: The heart rate is usually expressed in per minute.3.4heat storageheat accumulation in the body affected by metabolic heat produced, external heat load and heat dissipated from the body3.5maximum allowable work durationMAWDvalue calculated from thermophysiological simulation (THS measurement) predicting the time to reach heat stress based on the definitions of this documentNote 1 to entry: See