1、June 2010 Translation by DIN-Sprachendienst.English price group 15No part of this translation 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 9
2、7.080!$i-p“1701077www.din.deDDIN EN 12921-4Machines for surface cleaning and pretreatment of industrial itemsusing liquids and vapours Part 4: Safety of machines using halogenated solvents (includesAmendment A1:2008)English translation of DIN EN 12921-4:2010-06Maschinen zur Oberflchenreinigung und -
3、vorbehandlung von industriellen Produktenmittels Flssigkeiten oder Dampfphasen Teil 4: Sicherheit von Maschinen, in denen halogenierte Lsemittel verwendet werden(enthlt nderung A1:2008)Englische bersetzung von DIN EN 12921-4:2010-06Machines de nettoyage et de prtraitement de pices industrielles util
4、isant des liquides oudes vapeurs Partie 4: Scurit des machines utilisant des solvants halogns (Amendement A1:2008inclus)Traduction anglaise de DIN EN 12921-4:2010-06SupersedesDIN EN 12921-4:2010-02www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered
5、authoritative.3606.10 DIN EN 12921-4:2010-06 A comma is used as the decimal marker. Start of validity This standard takes effect on 1 June 2010. National foreword This standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 271 “Surface treatment equipmen
6、t Safety” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Working Committee NA 060-09-41 AA Vorbehandlungs-anlagen of Section Oberflchentechnik. This standard contains specificatio
7、ns meeting the essential requirements set out in Annex I of the “Machinery Directive”, Directive 98/37/EC, (valid until 28 December 2009) and the “revised Machinery Directive”, Directive 2006/42/EC, which took effect on 29 December 2009, and which apply to machines that are either first placed on th
8、e market or commissioned within the EEA. This standard serves to facilitate proof of compliance with the essential requirements of the directives. Once this standard is cited in the Official Journal of the European Union, it is deemed a “harmonized“ standard and thus, a manufacturer applying this st
9、andard may assume compliance with the requirements of the Machinery Directive (“presumption of conformity”). The European Standards referred to in this document have been published as the corresponding DIN EN or DIN EN ISO Standards with the same number. Amendments This standard differs from DIN EN
10、12921-4:2005-09 as follows: a) The foreword has been revised. b) Annex ZA (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC” has been updated. c) Annex ZB (informative) “Relationship between this European Standard and the Essential Req
11、uirements of EU Directive 2006/42/EC” has been added. This standard differs from DIN EN 12921-4:2010-02 as follows: d) In subclause 5.6.2.2.2, 4thparagraph, 4 W/m2has been changed to 4 W/cm2. Previous editions DIN EN 12921-4: 2005-09, 2010-02 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12
12、921-4:2005+A1 November 2008 ICS 97.080 Supersedes EN 12921-4:2005 English Version Machines for surface cleaning and pretreatment of industrial items using liquids and vapours Part 4: Safety of machines using halogenated solvents Machines de nettoyage et de prtraitement de pices industrielles utilisa
13、nt des liquides ou des vapeurs Partie 4: Scurit des machines utilisant des solvants halogns Maschinen zur Oberflchenreinigung und -vorbehandlung von industriellen Produkten mittels Flssigkeiten oder Dampfphasen Teil 4: Sicherheit von Maschinen, in denen halogenierte Lsemittel verwendet werden This E
14、uropean Standard was approved by CEN on 19 May 2005 and includes Amendment 1 approved by CEN on 23 October 2008. 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 alt
15、eration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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 tr
16、anslation under 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 standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germ
17、any, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG
18、Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12921-4:2005+A1:2008: EEN 12921-4:2005+A1:2008 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative referenc
19、es 6 3 Terms and definitions .6 4 List of significant hazards 8 5 Safety requirements and/or measures 10 5.1 General10 5.2 Mechanical hazards.10 5.3 Safety requirements and measures against electrical hazards11 5.4 Safety requirements and measures against thermal hazards 11 5.5 Safety requirements a
20、nd measures against noise.12 5.6 Safety requirements and measures against hazards generated by materials and substances processed, used or emitted by the cleaning machine.12 5.7 Safety requirements and measures against hazard combinations17 5.8 Safety requirements and measures against failure of ene
21、rgy supply .17 5.9 Safety requirements and measures against failure of control systems 18 6 Verification of the safety requirements and/or measures .18 6.1 General18 6.2 Mechanical18 6.3 Electrical .18 6.4 Thermal .18 6.5 Noise .18 6.6 Material and substances processed, used or emitted by the cleani
22、ng machines18 6.7 Hazard combinations 22 6.8 Failure of energy supply .22 6.9 Control systems.22 7 Information for use 22 7.1 General22 7.2 Instruction handbook 22 7.3 Minimum marking 24 Annex A (informative) Examples and description of types of cleaning machines using halogenated solvents and desig
23、n parameters25 A.1 Examples and description of types of cleaning machines using halogenated solvents.25 A.2 Characteristics for halogenated solvents .30 Annex B (informative) A-deviations.31 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Dire
24、ctive 98/37/EC, amended by 98/79/EC“ .32 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“.33 Bibliography 34 DIN EN 12921-4:2010-06 EN 12921-4:2005+A1:2008 (E) 3 Figures Figure A.1 Collection chamber cleaning machine using
25、 halogenated solvents type Ia25 Figure A.2 Single chamber cleaning machine using halogenated solvents type Ib26 Figure A.3 Enclosed open cleaning machine using halogenated solvents type II-a 27 Figure A.4 Open top tank.28 Figure A.5a Freeboard zones 29 Figure A.5b Cooling zone and safety zone29 Figu
26、re A.5c Refrigerated zone .29 DIN EN 12921-4:2010-06 EN 12921-4:2005+A1:2008 (E) 4 Foreword This document (EN 12921-4:2005+A1:2008) has been prepared by the Technical Committee CEN/TC 271 Surface treatment equipment Safety”, the secretariat of which is held by DIN. This European Standard shall be gi
27、ven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2008-10-23. This document super
28、sedes EN 12921-4:2005. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. !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 EC Dir
29、ective(s). For relationship with EC Directives, see informative Annexes ZA and ZB, which are integral parts of this document.“ This European Standard is part of a series of standards in the area of safety for development and construction of machines for surface cleaning and pre-treatment of industri
30、al items using liquids or vapours. The EN 12921 series includes the following parts: Part 1: Common safety requirements; Part 2: Safety of machines using water based cleaning liquids; Part 3: Safety of machines using flammable cleaning liquids; Part 4: Safety of machines using halogenated solvents.
31、NOTE Although a machine for surface cleaning and pre-treatment of industrial items, as an integral whole, formally does not fall under the scope of the ATEX Directive 94/9/EC, the standard is based upon a fundamental risk analysis according to this directive. According to the CEN/CENELEC Internal Re
32、gulations, 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, Luxembourg, Malta, Ne
33、therlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. “DIN EN 12921-4:2010-06 EN 12921-4:2005+A1:2008 (E) 5 Introduction This European Standard is a type C standard as stated in EN 12100. This European Standard contains additional safety req
34、uirements to and/or deviations from EN 12921-1:2005. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this European Standard. When provisions of this type C standard are different from those which are stated in type A
35、or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for cleaning machines that have been designed and built according to the provisions of this type C standard. DIN EN 12921-4:2010-06 EN 12921-4:2005+A1:2008 (E) 6 1 Scope This European S
36、tandard specifies the significant hazards of machines for surface cleaning and pre-treatment in the following called cleaning machines” of industrial items using halogenated solvents, either pure or as a mixture. This European Standard applies together with EN 12921-1:2005. Both parts together cover
37、 all significant hazards relevant for cleaning machines of industrial items using liquids or vapours, when they are used as intended and under the conditions foreseen by the manufacturer (see Clause 4). The specific requirements specified in Part 4 take precedence over the respective requirements in
38、 EN 12921-1:2005. This European Standard applies together with EN 12921-3 in case of release of flammable vapours from the cleaning liquids. This European Standard does not apply to machinery and related equipment excluded from the scope of EN 12921-1:2005. This European Standard is not applicable t
39、o cleaning machines which are manufactured before the publication of this European Standard by CEN. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references,
40、 the latest edition of the referenced document (including any amendments) applies. EN 1093-3, Safety of machinery Evaluation of the emission of airborne hazardous substances Part 3: Emission rate of a specified pollutant Bench test method using the real pollutant EN 12921-1:2005, Machines for surfac
41、e cleaning and pretreatment of industrial items using liquids or vapours Part 1: Common safety requirements EN 12921-3, Machines for surface cleaning and pretreatment of industrial items using liquids or vapours Part 3: Safety of machines using flammable cleaning liquids EN ISO 12100-1:2003, Safety
42、of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2:2003, Safety of machinery Basic concepts, general principles for design Part 2: Technical principle (ISO 12100-2:2003) 3 Terms and definitions For the purpose of this E
43、uropean Standard, the terms and definitions given in EN ISO 12100-1:2003, EN 12921-1:2005 and the following apply. 3.1 halogenated solvent organic solvent containing at least one halogen atom per molecule and not having a flash point as obtained by standard methods NOTE Examples for halogenated solv
44、ents are: dichloromethane (methylene chloride); HCFC 123, HCFC 141B and HCFC 225; “DIN EN 12921-4:2010-06 EN 12921-4:2005+A1:2008 (E) 7 trichloroethylene; tetrachloroethylene (perchloroethylene). These halogenated solvents used in industry can contain a small quantity of stabilising agents (anti-aci
45、d, anti-oxidant, etc). 3.2 vapour zone space within the cleaning machine filled with saturated solvent vapour when the cleaning machine is on stand-by 3.3 freeboard zone space within type II-cleaning machines above the vapour zone and up to the rim of the tanks. The freeboard zone can be further div
46、ided into cooling zone, safety zone, refrigerated zone (see Annex A) 3.4 cooling zone space within the freeboard zone of a cleaning machine above the vapour zone and up to the upper part of the condensing cooling coil 3.5 safety zone space within the freeboard zone of a cleaning machine above the co
47、oling zone up to the rim of the tank 3.6 refrigerated zone space within the freeboard zone of a cleaning machine where its temperature is below 0 C measured at a distance of 150 mm or more from the refrigeration cooling coils 3.7 types of cleaning machines using halogenated solvents types of halogen
48、ated solvent cleaning machines used in this European Standard are defined below and examples shown in Annex A 3.7.1 type I - sealed system system in which there is no direct connection between any volume containing halogenated solvent and the outside environment during normal operation 3.7.1.1 type Ia - collection chamber system collection chamber system consists of a collection chamber and one or more process chambers with doors, one door sealing the collection chamber
