SIST EN 374-3:2003
(Main)Protective gloves against chemicals and micro-organisms - Part 3: Determination of resistance to permeation by chemicals
Protective gloves against chemicals and micro-organisms - Part 3: Determination of resistance to permeation by chemicals
This European Standard specifies the determination of the resistance of protective glove materials to permeation by potentially hazardous non-gaseous chemicals under the condition of continuous contact. It is emphasised that the test does not represent conditions likely to be found in service, and the use of test data should be restricted to comparing materials chiefly on a relative basis in broad categories of breakthrough times.
Schutzhandschuhe gegen Chemikalien und Mikroorganismen - Teil 3: Bestimmung des Widerstandes gegen Permeation von Chemikalien
Die vorliegende Norm behandelt die Bestimmung des Widerstandes von Werkstoffen für Schutzhandschuhe gegen die Permeation von möglicherweise gefährdenden, nicht gasförmigen Chemikalien unter der Bedingung des ununterbrochenen Kontaktes.
Es wird ausdrücklich darauf hingewiesen, daß diese Prüfung nicht die Bedingungen repräsentiert, die in der Praxis angetroffen werden, die Prüfdaten sollten hauptsächlich für den Vergleich der Werkstoffe auf Grundlage der Durchbruchzeit verwendet werden.
Gants de protection contre les produits chimiques et les micro-organismes - Partie 3: Détermination de la résistance a la perméation des produits chimiques
La présente Norme européenne concerne la détermination de la résistance des matériaux constituant les gants de protection a la perméation par des produits chimiques non gazeux potentiellement dangereux en cas de contact continu.
Il convient donc d'insister sur le fait que cet essai ne rend pas compte des conditions susceptibles d'etre rencontrées en service, et il est recommandé de n'utiliser les résultats de l'essai, qui ont une valeur essentiellement relative, que pour comparer des matériaux par grandes catégories de temps de passage.
Varovalne rokavice za zaščito pred kemikalijami in mikroorganizmi – 3. del: Ugotavljanje odpornosti proti pronicanju kemikalij
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Schutzhandschuhe gegen Chemikalien und Mikroorganismen - Teil 3: Bestimmung des Widerstandes gegen Permeation von ChemikalienGants de protection contre les produits chimiques et les micro-organismes - Partie 3: Détermination de la résistance a la perméation des produits chimiquesProtective gloves against chemicals and micro-organisms - Part 3: Determination of resistance to permeation by chemicals13.340.40Varovanje dlani in rokHand and arm protectionICS:Ta slovenski standard je istoveten z:EN 374-3:2003SIST EN 374-3:2003en01-december-2003SIST EN 374-3:2003SLOVENSKI
STANDARDSIST EN 374-3:19961DGRPHãþD
SIST EN 374-3:2003
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 374-3September 2003ICS 13.340.40Supersedes EN 374-3:1994English versionProtective gloves against chemicals and micro-organisms - Part3: Determination of resistance to permeation by chemicalsGants de protection contre les produits chimiques et lesmicro-organismes - Partie 3: Détermination de larésistance à la perméation des produits chimiquesSchutzhandschuhe gegen Chemikalien undMikroorganismen - Teil 3: Bestimmung des Widerstandesgegen Permeation von ChemikalienThis European Standard was approved by CEN on 24 July 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 374-3:2003 ESIST EN 374-3:2003
EN 374-3:2003 (E)2Contents-pageForeword.31Scope.42Normative references.43Terms and definitions.44Test principle.55Collecting media.55.1General.55.2Gaseous collecting medium.55.3Liquid collecting medium.55.4Other collecting medium.56Apparatus.56.1Permeation cell.56.2Temperature controlled room, cabinet or water bath.66.3Gas supply, e. g. dry air, nitrogen or helium (in case of a gaseous collecting medium).66.4Liquid pump and stirrer (in case of a liquid collecting medium).66.5Equipment for the quantitative determination of the test chemical or its components in thecollecting medium.66.6Time measuring device.67Test specimens.78Procedure.78.1Calibration.78.2Preparation of test specimens and apparatus.78.3Test conditions.78.4Assessment of breakthrough time.78.5Test procedure for determination of the permeation rate.78.6Expression of results.99Test report.9Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.12SIST EN 374-3:2003
EN 374-3:2003 (E)3ForewordThis document (EN 374-3:2003) has been prepared by Technical Committee CEN /TC 162, "Protective clothingincluding hand and arm protection and lifejackets", of which the secretariat is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by March 2004, and conflicting national standards shall be withdrawn at the latest byMarch 2004.This document supersedes EN 374-3:1994.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree 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 document.EN 374 consists of the following Parts under the general title, Protective gloves against chemicals and micro-organisms:– Part 1: Terminology and performance requirements.– Part 2: Determination of resistance to penetration.– Part 3: Determination of resistance to permeation by chemicals.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SIST EN 374-3:2003
EN 374-3:2003 (E)4IntroductionA simple flow-through, two-compartment permeation cell, of standard dimensions, is used to measure quantitativelythe permeation of chemicals through protective glove materials. Breakthrough time is measured and used as ameasure of protection.1 ScopeThis European Standard specifies the determination of the resistance of protective glove materials to permeationby potentially hazardous non-gaseous chemicals under the condition of continuous contact.It is emphasised that the test does not represent conditions likely to be found in service, and the use of test datashould be restricted to comparing materials chiefly on a relative basis in broad categories of breakthrough times.2 Normative referencesThis European Standard incorporates by dated or undated reference provisions from other publications. Thesenormative references are cited at the appropriate place in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references, the latest edition of thepublication referred to applies (including amendments).EN 374-1, Protective gloves against chemicals and micro-organisms — Part 1: Terminology and performancerequirements.ISO 4648, Rubber, vulcanised or thermoplastic — Determination of dimensions of test pieces and products for testpurposes.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions in EN 374-1 apply with the following termsand definitions:3.1collecting mediuma medium in which the test chemical is freely soluble to saturation mass or volume fraction greater than 0,5 %3.2delay timetime between actual arrival of the test chemical on the collecting side of the specimen and the time when theanalytical instrumentation responds to it3.3permeation ratethe mass of test chemical permeating the glove per unit area per unit time (in µg cm-2 min-1)3.4closed loopbreakthrough detection system in which the collecting medium is re-circulated through the sampling compartmentsof the test cell. Closed loop systems are not used with gaseous collection mediaSIST EN 374-3:2003
EN 374-3:2003 (E)53.5open loopbreakthrough detection system where the collecting medium passes through the sampling compartment of the testcell without re-circulation. Open loop systems may be used with either liquid or gaseous collection media4 Test principleThe resistance of a protective glove material to permeation by a solid or liquid chemical is determined bymeasuring the breakthrough time of the chemical through the glove material.In the permeation test apparatus the glove material separates the test chemical from the collecting medium.The collecting medium, which can be a gas, a liquid or a solid, is analysed quantitatively for its concentration of thechemical and thereby the amount of that chemical that has permeated the barrier as a function of time after itsinitial contact with the glove material.5 Collecting media5.1 GeneralIn situations were both the gaseous and another collecting medium can be used, the gaseous collecting mediumshall be used.5.2 Gaseous collecting mediumDry air, nitrogen or a dry, non-flammable inert gas (e.g. helium).NOTEThis gas is used, under continuous flow conditions, for the collection of diffused molecules from the test chemicalcapable of vaporisation under the conditions of the test in sufficient quantities for analysis.5.3 Liquid collecting mediumWater or other liquid which does not influence the resistance of a material to permeation.NOTEThis liquid is circulated or stirred, and it is used for the collection the test chemical permeating the tested material.5.4 Other collecting mediumIn certain cases where a chemical cannot be collected either by gaseous or liquid collecting media, other collectingmedia may be used such as porous polymers in powder form. The adaptation of the test proc
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