1、September 2007DEUTSCHE NORM English price group 11No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.340.10!$I3_“13816
2、60www.din.deDDIN EN ISO 9185Protective clothing Assessment of resistance of materials to molten metal splash(ISO 9185:2007)English version of DIN EN ISO 9185:2007-09Schutzkleidung Beurteilung des Materialwiderstandes gegen flssige Metallspritzer (ISO 9185:2007)Englische Fassung DIN EN ISO 9185:2007-
3、09SupersedesDIN EN 373:1993-04www.beuth.deDocument comprises 19 pages11.07DIN EN ISO 9185:2007-09 2 Start of validity This standard is valid from 1 September 2007. National foreword This standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 162 “Protect
4、ive clothing including hand and arm protection and lifejackets” (Secretariat: DIN, Germany) in collaboration with Technical Committee ISO/TC 94 “Personal safety Protective clothing and equipment”. The responsible German body involved in its preparation was the Normenausschuss Persnliche Schutzaus-rs
5、tung (Personal Protective Equipment Standards Committee), Technical Committee NA 075-05-02 AA Schutz-kleidung gegen Hitze und Feuer. The DIN Standard corresponding to the International Standard referred to in clause 2 of the EN ISO is as follows: ISO 683-1:1987 DIN EN 10083-2:2006-10 Amendments This
6、 standard differs from DIN EN 373:1993-04 as follows: a) A new PVC sensor film has been included. b) Cryolite has been included as test metal. Previous editions DIN EN 373: 1993-04 National Annex NA (informative) Bibliography DIN EN 10083-2:2006-10, Steels for quenching and tempering Part 2: Technic
7、al delivery conditions for non alloy steels EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 9185July 2007ICS 13.340.10 Supersedes EN 373:1993 English VersionProtective clothing - Assessment of resistance of materials tomolten metal splash (ISO 9185:2007)Vtements de protection - valuation de la
8、 rsistance desmatriaux aux projections de mtal fondu (ISO 9185:2007)Schutzkleidung - Beurteilung des Materialwiderstandesgegen flssige Metallspritzer (ISO 9185:2007)This European Standard was approved by CEN on 24 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations wh
9、ich 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 CEN Management Centre or to any CEN member.This European Sta
10、ndard 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national stan
11、dards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United King
12、dom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 9185:2007: EContent
13、s Page 1 2 3 4 5 6 7 8 9 9.1 9.2 9.3 9.4 9.5 9.6 10 11 12 EN ISO 9185:2007 (E)2Operator safety . 10 Preparation of test specimens 10 Conditioning. 10 Apparatus and materials 6 Principle. 5 Foreword 3 Scope . 5 Terms and definitions. 5 Normative references . 5 Introduction 4 Procedure 11 Preparation
14、of molten metal or cryolite 11 Pouring 11 Setting up the apparatus 11 Attachment of test material to pin frame 11 Iterative testing . 12 Examination. 11 Void tests. 12 Determination of mass of metal poured. 12 Test report . 12 Annex B (normative) Method of test for assessment of thermal characterist
15、ics of PVC sensor film. 15 Bibliography . 16 Requirements of EU Directive 89/686/EEC . 17 Annex A (normative) Test conditions for certain metals and for cryolite 13 Annex ZA (informative) Relationship between this International Standard and the Essential EN ISO 9185:2007 (E) 3 Foreword This document
16、 (EN ISO 9185:2007) 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, in collaboration with Technical Committee ISO/TC 94 “Personal safety Protective clothing and equipment”. This Euro
17、pean 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 2008, and conflicting national standards shall be withdrawn at the latest by January 2008. This document supersedes EN 373:1993. This document has be
18、en 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 informative Annex ZA, which is an integral part of this document. According to the CEN/CENEL
19、EC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembo
20、urg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Introduction ISO 9185:1990 and EN 373:1995 have been used up until now with reasonable success as the principle test methods for materials used in the manufacture of clothin
21、g to protect against large splashes of molten metals. EN and ISO specifications cite these test methods and set levels of performance in terms of the mass of iron or aluminium that can be splashed onto test materials without producing damage to the heat sensor film. The revision of the test methods
22、contained within this International Standard incorporates changes based on experience that are intended to improve reproducibility and to respond to incident data from the aluminium smelter industry. A test procedure is therefore introduced to determine the protection provided by materials when spla
23、shed with molten cryolite. This revision also harmonises into one test procedure the previously slightly different procedures in ISO 9185 and EN 373 for testing with molten aluminium. A new supply of PVC sensor film has been established together with a new world-wide distributor see note in the text
24、. One single specification for PVC film replaces the previously different ones in ISO 9185 and EN 373. The test method in this International Standard is distinct from that in ISO 9150, which assesses the protective performance of materials intended to be manufactured into protective clothing for wel
25、ding activities. EN ISO 9185:2007 (E)41 Scope This International Standard specifies a method for assessing the heat penetration resistance of materials intended for use in clothing to protect against large splashes of molten metal. It provides specific procedures for assessing the effects of splashe
26、s of molten aluminium, molten cryolite, molten copper, molten iron and molten mild steel. The principle of the test method is applicable to a wider range of hot molten materials than those for which specific procedures are set out, provided that appropriate measures are applied to protect the test o
27、perator. It is important to note that good resistance of a material to a pure molten metal does not guarantee a good performance against any slag that can be present in a manufacturing process. 2 Normative references The following referenced documents are indispensable for the application of this do
28、cument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 683-1:1987, Heat-treatable steels, alloy steels and free-cutting steels Part 1: Direct-hardening unalloyed and low-alloyed wroug
29、ht steel in form of different black products 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 damage PVC sensor film any smoothing or modification to the embossing or pinholing of the PVC sensor film, extending in total for at least 5 mm acros
30、s its width NOTE Where the visual change in appearance is in discrete spots, damage occurs when the summation of the width of each spot exceeds 5 mm across any horizontal section. For cryolite, experience indicates that damage can be defined as less than 5 mm in width, but greater than 10 mm in leng
31、th. 3.2 molten metal splash index figure equal to the minimum mass of molten metal poured which just causes damage to the PVC sensor film 4 Principle Materials are tested by pouring quantities of molten metal onto the test specimen supported at an angle to the horizontal on a pin frame. Damage is as
32、sessed by placing an embossed thermoplastic PVC sensor film directly behind, and in contact with, the test specimen and noting changes to the film after pouring. Any adherence of the metal to the test specimen surface is also noted. Depending on the result, the test is repeated, using a greater or s
33、maller mass of metal, until the minimum quantity to cause damage to the film is observed. EN ISO 9185:2007 (E)55 Apparatus and materials 5.1 Metals and cryolite complying with the specifications set out in Annex A. Other metals or substrates appropriate to the end use. NOTE It is advisable that coar
34、se filings or small pieces cut from solid bar or sheet be used, because fine filings have proved difficult to melt. A range of pouring temperatures used in industry for different metals and for cryolite is given in Annex A. 5.2 PVC sensor film 1), comprising an embossed PVC sheet, of mass per unit a
35、rea (300 30) g/m2, which when tested as described in Annex B shows no smoothing or modification of the embossing of the central area at a block temperature of (166 2) C but which shows smoothing or modification of the central area at a block temperature of (183 2) C. The procedure set out in Annex B
36、 shall be undertaken no more than 30 days before any one day of testing in accordance with this International Standard. NOTE The reason for this continuous calibration of the PVC sensor film is that it is likely to change over time because of plasticizer loss. It is advisable that the PVC sensor fil
37、m be stored in a cool and dark location so as to minimize such changes. Because of the economics and consistency of production, one batch of at least 1500 m is produced and then used by test laboratories over a period of several years. 5.3 Crucible, whose approximate external dimensions are a height
38、 of 97 mm, a top diameter of 80 mm, a bottom diameter of 56 mm and a capacity (brim full) of 190 ml (see Figure 1). NOTE For most molten metals, including iron, a graphite impregnated material (if an induction furnace is used) has been found suitable for the crucible. 5.4 Detachable crucible holder,
39、 to enable the crucible containing the molten metal to be moved quickly and safely from the furnace to the test apparatus. 5.5 Furnace, capable of operating at a temperature 100 C above the pouring temperature specified in Annex A. The furnace type may be either a muffle furnace or an induction type
40、 furnace. NOTE Muffle furnaces are capable of holding at least four crucibles (i.e. internal furnace size is typically 135 mm 190 mm 780 mm), but they take several hours to melt metals such as steel, iron and copper. Induction furnaces melt a single crucible of these metals in less than half an hour
41、. 5.6 Temperature probe, either a small thermocouple 2)or an optical non-contact temperature device, capable of measuring molten metal temperatures up to 1 650 C to an accuracy of 10 C. 5.7 Pouring apparatus, shown in Figure 1, consisting of the pouring device, a means of rotating the pouring device
42、 at constant angular velocity, a specimen holder with supporting frame and a sand tray. The pouring device, consisting of crucible holder and drive shaft, shall be designed and constructed so that the point at which the molten metal pours from the crucible lies on the axis of rotation of the drive s
43、haft. The pouring device shall be manufactured from steel. 1) The PVC sensor film is supplied by Health b) the metal runs off the side of the test specimen or strikes within 25 mm of the top edge; c) any of the molten metal does not first hit the test specimen; d) the metal is not completely molten
44、when poured; e) the PVC film ignites due to metal solidifying to the pin frame. 12 Test report The test report shall include the following: a) a reference to this International Standard; b) for each individual test specimen, the approximate mass of metal used (see 9.2), whether any molten metal adhe
45、red to the material, the result of the assessment of the PVC film and the mass of molten metal or cryolite poured; c) the molten metal or cryolite splash index calculated as specified in Clause 10; d) the metal or specific source of cryolite used, the pouring temperature, the specimen angle to the h
46、orizontal and the pour height; e) any deviations from the test procedure likely to have had an influence on the test result. EN ISO 9185:2007 (E)12Annex A (normative) Test conditions for certain metals and for cryolite As this International Standard consists solely of a test method, it does not spec
47、ify performance levels for materials but does enable comparisons to be made between materials in terms of the protection provided against specific molten metals and cryolite. The conditions specified in Table A.1 have proven appropriate for the metals listed and for cryolite. The specimen angle show
48、n for aluminium reflects the need to increase the sensitivity of the test for this metal in order to be able to compare materials more readily, and demonstrates the flexibility of the basic method in that it enables a wide range of metals to be assessed. For cryolite, the rate of rotation of the cru
49、cible, the specimen angle and the pour height need to differ from the values set for the metals because of the much lower viscosity for cryolite. Temperatures to which metals and cryolite are heated before pouring are slightly higher than pouring temperatures, in order to allow for cooling during transfer from furnace to pouring apparatus. For substances poured at higher temperatures, the rate of cooling is greater than when poured at lower temperatures and therefore they need to be heated to a higher temperature to accommodate tra
