SIST EN 943-1:2003
(Main)Protective clothing against liquid and gaseous chemicals, including liquid aerosols and solid particles - Part 1: Performance requirements for ventilated and non-ventilated "gas-tight" (Type 1) and "non-gas-tight" (Type 2) chemical protective suits
Protective clothing against liquid and gaseous chemicals, including liquid aerosols and solid particles - Part 1: Performance requirements for ventilated and non-ventilated "gas-tight" (Type 1) and "non-gas-tight" (Type 2) chemical protective suits
This European Standard specifies the minimum requirements, test methods, marking and information supplied by the manufacturer for the following ventilated and non-ventilated limited use and re-usable chemical protective suits, including component parts such as gloves and boots which can be specified elsewhere.
Type 1 - "gas-tight" chemical protective suit
Type 1a - "gas-tight" chemical protective suit with a breathable air supply independent of the ambient atmosphere, e.g. a self-contained open-circuit compressed air breathing apparatus, worn inside the chemical protective suit.
Type 1b - "gas-tight" chemical protective suit with a breathable air supply, e.g. a self-contained open- circuit compressed air breathing apparatus, worn outside the chemical protective suit.
NOTE As chemical protective suits are used with respiratory devices, special attention should be given to the adequate selection of respiratory protective equipment. The limiting factors for the use of respirator filters (e.g. oxygen deficiency) should be taken into consideration.
Type 1c - "gas-tight" chemical protective suit with breathable air providing positive pressure, e.g. air lines.
Type 2 -"non-gas tight" chemical protective suit
"Non-gas-tight" chemical protective suit with breathable air providing positive pressure.
Specifications for total inward leakage test see annex A.
Specifications for test methods and performance classification for materials, seams, joins and assemblages see annex B.
Schutzkleidung gegen flüssige und gasförmige Chemikalien, einschließlich Flüssigkeitsaerosole und feste Partikel - Teil 1: Leistungsanforderungen für belüftete und unbelüftete "gasdichte" (Typ 1) und "nicht-gasdichte" (Typ 2) Chemikalienschutzanzüge
Diese Europäische Norm legt die Mindestanforderungen, Prüfverfahren, Kennzeichnung und Informationen des Herstellers für die folgenden belüfteten und nicht belüfteten zum begrenzten Einsatz und zur Wiederverwendung bestimmten Chemikalienschutzanzüge, einschließlich der Zubehörteile wie Handschuhe und Stiefel, die in anderen Normen festgelegt sein können, fest.
Typ 1 - "gasdichter" Chemikalienschutzanzug
Typ 1a) - "gasdichter" Chemikalienschutzanzug mit einer im Chemikalienschutzanzug getragenen umgebungsluftunabhängigen Atemluftversorgung, z. B. einem Behältergerät mit Druckluft.
Typ 1b) - "gasdichter" Chemikalienschutzanzug mit einer außerhalb des Chemikalienschutzanzuges getragenen Atemluftversorgung, z. B. einem Behältergerät mit Druckluft.
ANMERKUNG Da Chemikalienschutzanzüge in Verbindung mit Atemgeräten benutzt werden, sollte der angemessenen Auswahl der Atemschutzgeräte besondere Aufmerksamkeit gewidmet werden. Die begrenzenden Faktoren für den Gebrauch von Atemfiltern (z. B. Sauerstoffmangel) sollten berücksichtigt werden.
Typ 1c) - "gasdichter" Chemikalienschutzanzug mit einer Atemluftversorgung mit Überdruck, z. B. aus externen Leitungen.
Typ 2 - "nicht gasdichter" Chemikalienschutzanzug
"Nicht gasdichter" Chemikalienschutzanzug mit einer Atemluftversorgung mit Überdruck.
Festlegungen zur Prüfung auf die Gesamtleckage nach innen siehe Anhang A.
Festlegungen für Prüfverfahren und Leistungseinstufung für Materialien, Nähte, Verbindungen siehe Anhang B.
Festlegungen für Glaspapier und Schmirgelgewebe siehe Anhang C.
Vetements de protection contre les produits chimiques liquides et gazeux, y compris les aérosols liquides et les particules solides - Partie 1 : Exigences de performance des combinaisons de protection chimique ventilées et non ventilées
La présente Norme européenne spécifie les exigences minimales, les méthodes d'essai, le marquage ainsi que la notice d'information du fabricant relatifs aux combinaisons de protection chimique ventilées et non-ventilées, a utilisation limitée et réutilisables, y compris les éléments tels que les gants et les bottes qui peuvent etre spécifiés ailleurs.
Type 1 - Combinaison de protection chimique « étanche aux gaz »
Type 1a - Combinaison de protection chimique, « étanche aux gaz », a alimentation en air respirable indépendante de l'atmosphere ambiante, par exemple un appareil de protection respiratoire isolant autonome a circuit ouvert, a air comprimé, porté a l'intérieur de la combinaison de protection chimique.
Type 1b - Combinaison de protection chimique, « étanche aux gaz », a alimentation en air respirable, par exemple un appareil de protection respiratoire isolant autonome a circuit ouvert, a air comprimé, porté a l'extérieur de la combinaison de protection chimique.
NOTE Etant donné que les combinaisons de protection chimique sont utilisées avec des appareils de protection respiratoire, il convient de veiller tout spécialement a choisir de façon appropriée les équipements de protection respiratoire. Il convient de tenir compte des facteurs de limitations d'emploi des filtres respiratoires (un défaut d'oxygene, par exemple).
Type 1c - Combinaison de protection chimique, « étanche aux gaz », a air respirable a pression positive, a adduction d'air par exemple.
Type 2 - Combinaison de protection chimique, « non étanche aux gaz »
Combinaison de protection chimique, « non étanche aux gaz », a air respirable assurant une pression positive.
Voir a l'annexe A les spécifications relatives a l'essai de fuite vers l'intérieur.
Voir a l'annexe B les spécifications relatives aux méthodes d'essai et a la classification de performance des matériaux, coutures, jonctions et assemblages.
Varovalna obleka pred tekočimi in plinastimi kemikalijami, vključno s tekočimi aerosoli in trdnimi delci - 1. del: Varnostne zahteve za kemijsko varovalno obleko z dovodom zraka in neprezračevano kemijsko varovalno obleko “neprepustno za plin” (tip 1) in “prepustno za plin” (tip 2)
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Protective clothing against liquid and gaseous chemicals, including liquid aerosols and solid particles - Part 1: Performance requirements for ventilated and non-ventilated "gas-tight" (Type 1) and "non-gas-tight" (Type 2) chemical protective suitsVetements de protection contre les produits chimiques liquides et gazeux, y compris les aérosols liquides et les particules solides - Partie 1 : Exigences de performance des combinaisons de protection chimique ventilées et non ventiléesSchutzkleidung gegen flüssige und gasförmige Chemikalien, einschließlich Flüssigkeitsaerosole und feste Partikel - Teil 1: Leistungsanforderungen für belüftete und unbelüftete "gasdichte" (Typ 1) und "nicht-gasdichte" (Typ 2) Chemikalienschutzanzüge13.340.10Varovalna oblekaProtective clothingICS:SIST EN 943-1:2003enTa slovenski standard je istoveten z:EN 943-1:200201-januar-2003SIST EN 943-1:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 943-1September 2002ICS 13.340.10English versionProtective clothing against liquid and gaseous chemicals,including liquid aerosols and solid particles - Part 1:Performance requirements for ventilated and non-ventilated“gas-tight” (Type 1) and “non-gas-tight” (Type 2) chemicalprotective suitsVêtements de protection contre les produits chimiquesliquides et gazeux, y compris les aérosols liquides et lesparticules solides - Partie 1: Exigences de performance descombinaisons de protection chimique ventilées et nonventilées “étanches aux gaz” (Type 1) et “non étanches auxgaz” (Type 2)Schutzkleidung gegen flüssige und gasförmigeChemikalien, einschließlich Flüssigkeitsaerosole und festePartikel - Teil 1: Leistungsanforderungen für belüftete undunbelüftete “gasdichte” (Typ 1) und “nicht-gasdichte” (Typ2) ChemikalienschutzanzügeThis European Standard was approved by CEN on 20 June 2002.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,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 943-1:2002 E
EN 943-1:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.54Performance requirements.55Performance requirements for the whole suit.86Test methods.137Marking.158Information supplied by the manufacturer.16Annex A (normative)
Total inward leakage test.17Annex B (normative)
Test methods and performance classification for materials, seams, joins andassemblages.24Annex C (normative)
Glass paper and glass cloth.32Annex ZA (informative)
Clauses of this European Standard addressing essential requirements orother provisions of EU Directives.34Bibliography.35
EN 943-1:2002 (E)3ForewordThis document EN 943-1:2002 has been prepared by Technical Committee CEN/TC 162 "Protective clothingincluding hand and arm protection and life jackets", 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 orby endorsement, at the latest by March 2003, and conflicting national standards shall be withdrawn at the latest byMarch 2003.The CEN/TC 162 decided in April 1989 to start with the work and to allocate it to WG3 "Resistance to chemicalsof protective clothing".During the plenary meeting of CEN/TC 162 in February 1992 the proposal was presented to the TC andaccepted. The proposal was transmitted to the secretariat of CEN/TC 162 with the request to induce thepublishing of the draft European Standard. Following the first Preliminary Enquiry of separate standards for Type1 and 2 re-usable protective clothing it was agreed to combine these into a single standard and include limiteduse clothing. This revision was substantial enough to justify a 2nd Preliminary Enquiry.This document has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association, and supports the essential requirements of EU Directive 89/686/EEC.For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.Annexes A, B and C are normative.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, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.
EN 943-1:2002 (E)41 ScopeThis European Standard specifies the minimum requirements, test methods, marking and information suppliedby the manufacturer for the following ventilated and non-ventilated limited use and re-usable chemical protectivesuits, including component parts such as gloves and boots which can be specified elsewhere.Type 1 - "gas-tight" chemical protective suitType 1a - "gas-tight" chemical protective suit with a breathable air supply independent of the ambientatmosphere, e.g. a self-contained open-circuit compressed air breathing apparatus, worn inside thechemical protective suit.Type 1b - "gas-tight" chemical protective suit with a breathable air supply, e.g. a self-contained open-circuit compressed air breathing apparatus, worn outside the chemical protective suit.NOTEAs chemical protective suits are used with respiratory devices, special attention should be given to theadequate selection of respiratory protective equipment. The limiting factors for the use of respirator filters (e.g. oxygendeficiency) should be taken into consideration.Type 1c - "gas-tight" chemical protective suit with breathable air providing positive pressure, e.g. airlines.Type 2 -”non-gas tight” chemical protective suit"Non-gas-tight" chemical protective suit with breathable air providing positive pressure.Specifications for total inward leakage test see annex A.Specifications for test methods and performance classification for materials, seams, joins and assemblages seeannex B.Specifications for glass paper and glass cloth see annex C.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places 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 136:1998, Respiratory protective devices — Full face masks — Requirements, testing, marking.EN 139:1994, Respiratory protective devices — Compressed air line breathing apparatus for use with a full facemask, half mask or mouthpiece assembly — Requirements, testing, marking.EN 270:1994, Respiratory protective devices — Compressed air line breathing apparatus incorporating a hood -Requirements, testing, marking.EN 340, Protective clothing — General requirements.EN 368, Protective clothing for use against liquid
chemicals — Resistance of materials
to penetration by liquids.EN 369, Protective clothing for use against liquid chemicals — Test method: Resistance of materials topermeation by liquids.
EN 943-1:2002 (E)5EN 374-3, Protective gloves against chemicals and micro-organisms — Part 3: Determination of resistance topermeation by chemicals.EN 463, Protective clothing for use against liquid chemicals — Determination of resistance to penetration by a jetof liquid (Jet Test).EN 464, Protective clothing for use against liquid and gaseous chemicals, including liquid aerosols and solidparticles — Determination of leak-tightness of gas-tight suits (Internal Pressure Test).EN 530, Abrasion resistance of protective clothing material.EN 863, Protective clothing — Mechanical Properties — Test Method — Puncture resistance.EN 12021, Respiratory protective devices – Compressed air for breathing apparatus.EN 13274-4, Respiratory protective devices — Methods of test — Part 4: Flame tests.prCEN ISO TR 11610, Protective clothing – Glossary of terms and definitions (ISO/DIS 11610:1997).EN ISO 7854, Rubber or plastics coated fabrics — Determination of resistance to damage by flexing .EN ISO 9073-4, Textiles — Test methods for nonwovens — Part 4: Determination of tear resistance.EN ISO 13934-1, Textiles - Tensile properties of fabrics - Part 1: Determination of maximum force and elongationat maximum force using the strip method (ISO 13934-1:1999).EN ISO 13935-2, Textiles – Seam tensile properties of fabrics and made-up textile articles - Part 2:Determination of maximum force to seam rupture using the grab method (ISO 13935-2:1999).EN ISO 13938-1, Textiles — Bursting properties of fabrics — Part 1: Hydraulic method for determination ofbursting strength and bursting distension.3 Terms and definitionsFor the purposes of this European Standard the terms and definitions in prCEN ISO TR 11610 apply.4 Performance requirements4.1 MaterialsChemical protective clothing materials shall fulfil all the test requirements given in Table 1 when tested inaccordance with the test method specified in B.2.Pre-conditioning and conditioning shall be carried out in accordance with B.2.1 and B.2.2 as required
EN 943-1:2002 (E)6Table 1 — Minimum performance requirements of chemical protective clothing materialsPerformance levelClause inannex BPerformance requirementLimitedUseRe-usableB.2.3Abrasion resistance33B.2.4Flex cracking resistance14B.2.5Flex cracking at –30 °C (optional)22B.2.6Trapezoidal tear resistance33B.2.8Tensile strength34B.2.9Puncture resistance22B.2.10Resistance to permeation by liquidsSeeB.2.10SeeB.2.10B.2.13Resistance to ignitionSeeB.2.13SeeB.2.13Chemical protective clothing material for which a test method in the above table does not provide a clearmeasurement end-point criteria shall be marked NOT APPLICABLE in the test report and in the instructions foruse, the reason why the test could not be completed shall be indicated e.g. where the elasticity of the sampleprevents an end-point in the puncture resistance test.Materials of construction shall not be known to cause skin irritation or have any adverse effect to health.NOTE 1The material of construction should be as light and as flexible as possible in order to ensure wearer comfort as wellas providing effective protection.NOTE 2Material properties are only one element for the determination of wearer comfort of protective clothing. Designfeatures of the clothing can have a more important influence on wearer comfort than material properties.4.2 Seams, joins and assemblagesSeams, joins and assemblages shall be tested and classified according to the requirements of B.3. The minimumperformance requirement for Seam Strength shall be Level 5NOTE 1The requirements of this clause apply to the garment as a whole including component parts, such as gloves orboots, that are integral to the garment. The seams, joins and assemblages attaching these accessories are included within thescope of this standard. The performance criteria for the accessories; gloves, boots or respiratory protective equipment are givenin other European Standards.NOTE 2The performance can be different to that of the material from which it is made, but has to be adequate for theintended use.4.3Strength of joins and assemblagesThe strength of joins and assemblages between the suit and detachable parts e.g., between gloves and sleeves,and boots and trouser legs, shall not be less than 100 N when tested in accordance with 6.5.
EN 943-1:2002 (E)7Table 2 — Performance requirements for whole suits1a1b1c25Requirements for whole suit5.1General33335.2Conditioning33335.3Leak tightness3335.4Inward leakage3 (1)335.5Visors5.5.1General3335.5.2Distortion of vision3335.5.3Field of vision3335.5.4Mechanical strength3335.6Facemask335.7Pass-thru for use with self-contained breathing apparatus35.7.1Strength of pass-thru35.7.2Performance of pass-thru35.7.3Resistance to kinking35.8Air supply system335.8.1Couplings335.8.2Connections335.8.3Connection strength335.9Breathing hose and ventilating hose335.9.1External breathing hose335.9.1.1Resistance to collapse335.9.2Internal breathing hose335.9.2.1Resistance to collapse33
EN 943-1:2002 (E)85.9.3External ventilating hose3 (2)5.10Air flow rate335.10.1Continuous flow valve335.11Warning and measuring facilities335.12Compressed air supply tube335.13Exhaust assembly33 (3)335.14Pressure in suit33 (3)335.15Breathingresistance335.16Carbon dioxide content of inhalation air335.17Noise associated with air supply to suit33NOTE 1
Inward leakage test is required for Type 1b suits where the facemask is not permanently attached.NOTE 2
Applicable only when the self-contained breathing apparatus is worn outside the suit and air from the cylinder is fedinto the suit for ventilation.NOTE 3
Applicable for suits where air is vented from the facemask into the chemical protective suit and when the self-contained breathing apparatus is worn outside the suit and air from the cylinder is fed into the suit for ventilation.5 Performance requirements for the whole suit5.1 GeneralChemical protective suits shall fulfil the requirements given in Table 2 when tested as a complete suit.The suit shall be made so that the wearer has freedom of movement and is as comfortable as possible,consistent with the protection afforded by the garment when tested in accordance with 6.25.2 ConditioningThe complete suit shall be exposed:a) for not less than 4 h to an atmosphere of (60 ± 3) °C at 95 % relative humidity; followed byb) for not less than 4 h to a temperature of (-30 ± 3) °C and allowed to return to ambient conditions.It shall then be allowed to return to ambient temperature. If these temperatures are incompatible themanufacturer shall state this and state the designed conditions in the instructions.
EN 943-1:2002 (E)95.3 Leak tightnessThe complete suit shall pass when tested according to EN 464. The pressure drop shall not be greater than300 Pa (3 mbar) in 6 min.5.4 Inward leakageWhen tested in accordance with annex A the inward leakage shall not exceed the values given in Table 3.Table 3 — Inward leakage performanceSuit typeInward leakageType 1aNot required (EN 464 applies)Type 1b with facemask permanently joinedto the suit (an assemblage)Not required (EN 464 applies)Type 1b using a facemask which is notpermanently joined to the suitEN 464plusInward leakage test (annex A) with inward leakage notgreater than 0,05 % when measured in the ocular cavityof the maskType 1cnot greater than 0,05 %Type 2not greater than 0,05 %5.5 Visor5.5.1 GeneralWhere a visor is fitted as part of the suit, as distinct from a respirator facemask joined to the suit, the visor shallcomply with 5.5.3 and 5.5.4.When tested in accordance with 5.5.2 visors shall not distort vision.Where anti-fogging compounds are used or specified by the manufacturer they shall not have an adverse effecton the health of the wearer, or on the protective garment.5.5.2
Distortion of visionDuring the practical performance test (6.2), the test subject shall be asked to read a sign with four letters100 mm high and 20 mm high, selected at random, at a distance of 6 m.5.5.3 Field of visionDuring the practical performance test (6.2), the field of vision shall be satisfactory.5.5.4 Mechanical strengthThe visor shall not be visibly damaged in such a way as to be likely to affect the performance of the completedevice, when tested in accordance with 6.7.
EN 943-1:2002 (E)105.6 Full facemaskOnly facemasks complying with class 2 or 3 of EN 136:1998 shall be used.If the suit incorporates a full face mask bonded or fixed in such a way that the connection is integral to the suitthe system of joining must not interfere with the face to mask seal or any other function of the facemask, whentested in accordance with 6.2.If the facemask is attached to the suit in a non-permanent manner the sealing mechanism shall be tested inaccordance with EN 463. There shall be no penetration of the facemask to suit join according to the followingcriteria: join penetration has occurred when the total stain area on the undergarment is greater than three timesthe calibrated stain area. Three samples of facemask to suit joins shall be tested after conditioning to 5.2.5.7 Pass-thru for use with self-contained breathing apparatusIf fitted, the pass-thru shall satisfy the requirements of 5.7.1, 5.7.2 and 5.7.35.7.1 Strength of pass-thruThe pass-thru and connections to the suit and body shall be tested in accordance with 6.1 and 6.2.The complete device and its assembly to the suit and body shall withstand a steady force of 1 000 N when testedin accordance with 7.10 of EN 270:1994.5.7.2 Performance of pass-thruThe unit complete with connections shall deliver a minimum 300 l/min at 550 kPa (5,5 bar).5.7.3 Resistance to kinkingIf a flexible air supply hose is fitted externally the hose shall maintain a near circular shape when extended froma loop and shall not decrease airflow by more than 10 % when tested in accordance with 6.11.1 of EN 270:1994.5.8 Air supply systemIf a mobile high pressure air supply is to be used it shall comply with 6.10 of EN 270:1994. If a stationary highpressure air supply is to be used it shall comply with the performance criteria specified by the manufacturer ofthe chemical protective suit. The air delivered by the air supply system shall conform with EN 12021.5.8.1 CouplingsThe equipment shall be constructed so that any twisting of the hoses and tubes does not affect the fit orperformance of the equipment, or cause the hoses or tubes to be disconnected. The design of the coupling shallbe such as to prevent unintentional interruption of the air supply. At least one swivelling coupling shall be fitted tothe compressed air supply tube adjacent to the wearer.Where a hand operated connection is fitted to the outlet of the compressed air tube it shall incorporate a self-sealing coupling to seal the air supply. Test in accordance with 6.1 and 6.2.5.8.2 ConnectionsComponents of the apparatus shall be readily separated for cleaning, examining and testing. All demountableconnections shall be readily connected and secured, where possible by hand. Any means of sealing used shallbe retained in position when the joints and couplings are disconnected during normal maintenance. Test inaccordance with 6.1 and 6.2.
EN 943-1:2002 (E)115.8.3 Connections strengthThe connection between the compressed air supply tube and the chemical protective suit, including attachments,threaded parts, belt or other parts, or means of stabilising the suit to the body shall conform with 6.11.3 ofEN 270:1994.To be performed before the inward leakage test.5.9 Breathing hose and ventilating hoseThe breathing hose may be fitted internally and/or externally. A ventilating hose may be fitted externally.5.9.1 External breathing hoseIf fitted, the external breathing hose shall be of sufficient flexibility to enable the wearer to carry out the practicalperformance test and it shall permit free head movement.NOTEThe hose should not be of a length which can enable it to be easily caught on obstructions.Connections between the suit and the external breathing hose shall withstand a pull test of 250 N both beforeand after conditioning. The breathing hose shall not show a permanent elongation of greater than 20 % of theoriginal length.Test in accordance with 7.7 of EN 270:1994.5.9.1.1 Resistance to collapseWhen tested at a force of (50 ± 2,5) N the airflow shall not be reduced by more than 5 %. If the hose ispermanently distorted after the force is released it shall not be regarded as satisfactory.Test in accordance with 7.9 of EN 270:1994. One pre-conditioned suit shall be tested.5.9.2 Internal breathing hoseThe connections of the internal breathing hose shall withstand a pull test of 50 N both before and afterconditioning.Test in accordance with the method described in 7.9 of EN 270:1994, but using a force of 50 N instead of1 000 N.5.9.2.1 Resistance to collapseWhen tested at a force of (50 ± 2,5) N the airflow shall not be reduced by more than 5 %. If the hose ispermanently distorted after the force is released, it shall not be regarded as satisfactory.Test in accordance with 7.9 of EN 270:1994. One pre-conditioned suit shall be tested.5.9.3 External ventilating hoseIf fitted, the external ventilating hose shall be of sufficient flexibility to enable the wearer to carry out the practicalperformance test and it shall permit free head movement.NOTEThe hose should not be of a length which can enable it to be easily caught on obstructions.Connections between the suit and the external breathing hose shall withstand a pull test of 250 N both beforeand after conditioning.
EN 943-1:2002 (E)12Test in accordance with 7.7 of EN 270:1994.5.10 Air flow rateThe flowrate and distribution of the air into the chemical protective suit shall not cause distress to the wearer byexcessive local cooling when tested in accordance with 6.2.Two devices shall be tested, one of which has been conditioned.5.10.1 Continuous flow valveA continuous flow valve, when fitted, shall be easily adjusted by the wearer to supply air as required when testedin accordance with 6.2. The continuous flow valve shall not be able to deliver less than the minimum designflowrate specified by the manufacturer.5.11 Warning and measuring facilitiesA means shall be available to check that the manufacturer's minimum design flowrate is exceeded prior to eachuse. The suit shall be fitted with a warning facility that immediately draws the attention of the wearer to the factthat the manufacturer's minimum design flowrate is not being achieved.A means of checking the correct functioning of the warning facility shall also be available.If an audible warning device is fitted it shall comply with the performance requirements of 6.13.3 of EN 270:1994.Test in accordance with 6.1 and 6.2 of this standard; and also 7.12 of EN 270:1994.Two devices shall be tested, one of which has been conditioned.5.12 Compressed air supply tubeThe compressed air supply tube shall comply with 6.11 of EN 270:1994.5.13 Exhaust assemblyType 1a, type 1c and type 2 suits shall be provided with an exhaust assembly which may consist of one or moreexhalation valves. Type 1b suits shall be fitted with an exhaust assembly if the exhalation valve of the respiratoryprotective equipment is not free to discharge directly to atmosphere, or where supplementary air for ventilation issupplied to the chemical protective suit.When tested in accordance with 6.6 the pressure change shall not exceed 100 Pa in 1 min. Three devices shallbe tested, one of which has been conditioned according to 5.2.5.14 Pressure in chemical protective suitWhen tested in accordance with 6.4 the pressure in the suit shall not exceed 400 Pa. Type 1b suits shall only betested when an exhaust assembly is fitted.5.15 Breathing resistanceIf the air is taken directly from the chemical protective suit the breathing resistance shall be according to 6.15.4.2and 6.15.4.3 of EN 270:1994. If the air is supplied to a full facemask the breathing resistance shall be accordingto 6.20 of EN 139:1994.
EN 943-1:2002 (E)135.16 Carbon dioxide content of inhalation airThe carbon dioxide content of the inhalation air shall comply with 6.16 of EN 270:1994.5.17 Noise associated with the air supply to the suitThe noise associated with the air supply shall comply with the requirements of 6.17 of EN 270:1994 when testedat the manufacturer’s maximum design flowrate.6 Test methods6.1 Visual inspectionA visual inspection shall be carried out by the test station prior to laboratory or practical performance tests. Thismay entail a certain amount of dismantling in accordance with the manufacturer’s instructions for maintenance.6.2 Practical performance testAll tests shall be carried out by two test subjects at temperature (20 ± 5) °C, relative humidity < 60 % and the testtemperature and humidity shall be recorded. The background noise shall not be greater than 75 dBA.For the test, persons shall be selected who are familiar with using such or similar equipment and whose medicalhistory is known to be satisfactory. The subjects shall be medically examined and certified fit to undertake thetest procedures. The necessity of a medical examination before, or supervision during the tests shall be at thetesting officers’ discretion.Prior to the test there is an examination that the suit is in good working order and that it can be used withouthazard. If more than one size of suit is manufactured the subjects are asked to select the appropriate size.Two devices shall be tested, each being tested on one subject.After fitting the suit, each test subject is asked "Does the suit fit?"
If the answer is "Yes" continue the test.
If theanswer is "No", take the test subject off the panel and report the fact.6.2.1 Work simulation testDuring this test the following activities shall be done in the simulation of the practical use of the suit, the test shallbe completed within a total working time of 30 min.a)Walking on the level at a regular rate of 6 km/h for 5 min.b)Climbing up and down a ladder (total vertical distance 20 m)c)Filling a small basket (see Figure 1, approximate volume 8 l) with 12 mm chippings (e.g. limestonechippings) or other suitable material from a hopper which stands 1,5 m high and has an opening at thebottom to allow the contents to be shovelled out, and a further opening at the top where the chippings maybe returned. The subject stoops or kneels as he/she wishes and fills the basket with chippings. He/shethen lifts the basket and empties the contents back into the hopper. This is repeated 15 to 20 times in10 min.
EN 943-1:2002 (E)14Figure 1 — Basket and hopper of chippings6.2.2 Information to be recordedDuring the practical performance tests the apparatus shall be subjectively assessed by the wearer and thefollowing shall be recorded:a) harness comfort;b) security of fastenings and couplings;c) accessibility of controls and pressure gauge (if fitted);d) clarity of vision from the facepiece and/or visor;e) clothing comfort;f)ease of speech transmission;g)any other comments volunteered by the wearer.6.3 Measurement of minimum and maximum air flow rateConnect the ends of the distribution system collectively to a suitable measuring device. Record the maximumairflow at the manufacturer's required air supply. If a control valve is fitted record the maximum and minimumdelivered airflow.
EN 943-1:2002 (E)156.4 Suit pressure testA constant air flow of 300 l/min for type 1a and 1b or the maximum design airflow plus 300 l/min for type 1c andtype 2 shall be blown into the chemical protective suit via a test socket. Record the maximum internal pressure inthe suit.6.5 Pull Test for joins and assemblagesAssemble the means of attachment according to the manufacturer’s instructions. If the glove or boot is itself notstrong enough to apply a 100 N pull substitute an item that is. Securely attach one member to a fixed clamp andthe other to a moveable clamp. Apply a force longitudinally to the assemb
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