1、November 2010 Translation by DIN-Sprachendienst.English price group 17No 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).I
2、CS 67.260!$l(“1730588www.din.deDDIN EN 12505Food processing machinery Centrifugal machines for processing edible oils and fats Safety and hygiene requirements (includes Amendment A1:2009)English translation of DIN EN 12505:2010-11Nahrungsmittelmaschinen Zentrifugen zur Verarbeitung von essbaren len
3、und Fetten Sicherheits- und Hygieneanforderungen (enthlt nderung A1:2009)Englische bersetzung von DIN EN 12505:2010-11Machines pour les produits alimentaires Centrifugeuses pour le traitement des huiles et des graisses alimentaires Prescriptions de scurit et dhygine (Amendement A1:2009 inclus)Traduc
4、tion anglaise de DIN EN 12505:2010-11SupersedesDIN EN 12505:2001-01See start of applicationwww.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.4211.10 DIN EN 12505:2010-11 A comma is used as the decimal marker. Start of application The
5、 start of application of this standard is 1 November 2010. National foreword This standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 153 “Machinery intended for use with foodstuffs and feed” (Secretariat: DIN, Germany). The responsible German body in
6、volved in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Working Committee NA 060-18-80 AA Nahrungsmittel-maschinen. Representatives of manufacturers and users of food processing machinery, and of the employers liability insurance associations cont
7、ributed to this standard. This standard contains specifications meeting the essential requirements set out in Annex I of the new “Machinery Directive”, Directive 2006/42/EC, and which apply to machines that are either first placed on the market or commissioned within the EEA. This standard serves to
8、 facilitate proof of compliance with the essential requirements of that directive. 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 standard may assume compliance with the requirements of the Machin
9、ery Directive (“presumption of conformity”). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. The International and European Standards referred to in
10、Clause 2 of this document have been published as the corresponding DIN EN, DIN ISO or DIN EN ISO Standards with the same number, except for those below, which correspond as follows: ISO 468:1982 DIN EN ISO 4287:1998 and DIN EN ISO 4288:1998 (withdrawn 1998-04) IEC 60651:1979 DIN EN 61672-1 (withdraw
11、n 2004-08) IEC 60804:1985 DIN EN 61672-1 (withdrawn 2004-08) Amendments This standard differs from DIN EN 12505:2001-01 as follows: a) the standard has been brought in line with the revised Machinery Directive 2006/42/EC; b) normative references have been updated; c) Clause 7 “Information for use” h
12、as been updated; d) in Subclause 4.1.1, a minor correction has been made to the German translation. Previous editions DIN EN 12505: 2001-01 2 DIN EN 12505:2010-11 National Annex NA (informative) Bibliography DIN EN ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Te
13、rms, definitions and surface texture parameters DIN EN ISO 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture DIN EN 61672-1, Electroacoustics Sound level meters Part 1: Specifications 3 DIN EN 12505:2010-11 4 Thi
14、s page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12505:2000+A1 October 2009 ICS 67.260 Supersedes EN 12505:2000English Version Food processing machinery - Centrifugal machines for processing edible oils and fats - Safety and hygiene requirements Machines pour les pr
15、oduits alimentaires - Centrifugeuses pour le traitement des huiles et des graisses alimentaires -Prescriptions de scurit et dhygine Nahrungsmittelmaschinen - Zentrifugen zur Verarbeitung von e baren len und Fetten - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on
16、21 April 2000 and includes Amendment 1 approved by CEN on 23 July 2009. 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. Up-to-date lists and bibliograp
17、hical 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 translation under the responsibility of a
18、CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
19、 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 Management Centre: Avenue Marnix 17, B
20、-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12505:2000+A1:2009: EssEN 12505:2000+A1:2009 (E) 2 Contents Page Foreword 3Introduction .41 Scope 42 Normative references 43 Definitions and descriptions 64 List o
21、f significant hazards 95 Safety requirements and/or measures . 146 Verification 207 !Information for use (see Clause 6 of EN ISO 12100-2:2003)“ 21Annex A (normative) Noise test code - Grade 2 of accuracy. 24Annex B (normative) Principles of design to ensure the hygiene of centrifugal machine for pro
22、cessing edible oils and fats . 28Annex C (informative) Evaluation and verification method for bowl design and calculation procedure 30Annex D (informative) Bibliography . 36Annex ZA (informative) !Relationship of this European standard and the Essential Requirements of EU Directive 98/37/EC“ 37Annex
23、 ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“ 38DIN EN 12505:2010-11 EN 12505:2000+A1:2009 (E) 3 Foreword This document (EN 12505:2000+A1:2009) has been prepared by Technical Committee CEN/TC 153 “Machinery intended for use
24、with foodstuffs and feed“, 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 or by endorsement, at the latest by April 2010, and conflicting national standards shall be withdrawn at the latest
25、by April 2010. This document includes Amendment 1, approved by CEN on 2009-07-23. This document supersedes EN 12505:2000. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This European Standard has been prepared under a mandate given to CEN by the
26、European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ According to the CEN/CENELEC Internal Regulations, the national
27、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, Netherlands, Norway, Polan
28、d, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 12505:2010-11 EN 12505:2000+A1:2009 (E) 4 Introduction !This document is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazard, hazardous situation and hazard
29、ous event are covered are indicated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have bee
30、n designed and built according to the provisions of this C standard. This European Standard is independent of EN 12547 because it deals specifically with the requirements of the processing of edible oils and fats. EN 12547 is included in the Annex D “Bibliography“.“ 1 Scope This European Standard co
31、vers all significant hazards as identified by risk assessment (see EN 1050), which are listed in clause 4 of this standard, relevant to centrifuges for processing edible oils and fats, when they are used as intended and under the conditions foreseen by the manufacturer. It specifies safety and hygie
32、ne requirements for the design, manufacture, use, maintenance and cleaning of centrifugal machines. The normal operating methods are described in 3.2. This standard does not apply to machines using solvent extraction and ancillary machines (e.g. conveyors, hoppers, etc.). It is not applicable to bas
33、ket centrifuges. This European Standard is applicable primarily to machines which are manufactured after the date of approval by CEN. 2 Normative references !The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applie
34、s. For undated references, the latest edition of the referenced documents (including any amendments) applies.“ !deleted text“ EN 294:1992, Safety of machinery - Safety distances to prevent danger zones being reached by the upper limbs !EN 614:2006, Safety of machinery Ergonomic design principles Par
35、t 1: Terminology and general principles“ !deleted text“ EN 953:1997, Safety of machinery - General requirements for the design and construction of guards fixed, movable) DIN EN 12505:2010-11 EN 12505:2000+A1:2009 (E) 5 !deleted text“ !EN 1005-2:2003, Safety of machinery Human physical performance Pa
36、rt 2: Manual handling of machinery and component parts of machinery“ !EN 1005-3:2002, Safety of machinery Human physical performance Part 3: Recommended force limits for machinery operation“ EN 1037:1995, Safety of machinery - Prevention of unexpected start-up EN 1050:1996, Safety of machinery - Pri
37、nciples of risk assessment !EN 1672-2:2005, Food processing machinery Basic concepts Part 2: Hygiene requirements“ !EN 60204-1:2006, Safety of machinery Electrical equipment of machines Part 1: General requirements“ !deleted text“ EN 60529:1991, Classification of degree of protection provided by enc
38、losures (code IP) EN ISO 3744:1995, Acoustic - Determination of sound power levels of noise sources Engineering method employing and enveloping measurement surface in an essentially free field over a reflecting plane EN ISO 4871:1996, Acoustic - Verification and declaration of noise emission values
39、of machinery and equipment EN ISO 11201:1995, Acoustic - Noise emitted by machinery and equipment - Measure of emission sound pressure levels at the work station and at other specified positions Engineering method in an essentially free fields over a reflecting plane EN ISO 11688-1, Acoustic - Recom
40、mended practice for the design of low noise machinery and equipment, Part 1: Planning !EN ISO 12100-1:2003, Safety 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 pri
41、nciples for design Part 2: Technical principles (ISO 12100-2:2003) EN ISO 13849-1:2008, Safety of machinery Safety-related parts of control systems Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13850:2008, Safety of machinery Emergency stop Principles for design (ISO 13850:2006)“ !
42、deleted text“ ISO 468:1982, Surface roughness - Parameters, their values and general rules for specifying requirements !ISO 1940-1:2003, Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1: Specification and verification of balance tolerances“ !deleted tex
43、t“ IEC 60651:1979, Sound level meters and Amendment 1:1993 IEC 60804:1985, Integrating-averaging sound level meters DIN EN 12505:2010-11 EN 12505:2000+A1:2009 (E) 6 and Amendment 1:1989 and Amendment 2:1993 3 Definitions and descriptions For the purposes of this Standard, the definitions given in !E
44、N ISO 12100-1:2003“ apply and also the following. 3.1 extraction and separation two methods of centrifugation, carried out by two different centrifugal machines: respectively decanter and disc stack centrifuges. 3.2 centrifugal machine it is used for the extraction and separation of edible oils and
45、fats in which, by means of centrifugal force, the incoming product (“feed“) is separated into the different liquid and solid phases. 3.2.1 decanter centrifuge it is used to extract the solid phase from the liquid (oil or oil and water) phase (see Figure 1) The feed enters the machine through a fixed
46、 pipe (1) and is distributed on the internal surface of the bowl (2), by centrifugal force. The scroll (3), which rotates at a slightly different speed from the bowl, conveys the solid residue to the outlet holes (4). The scraper (5), driven by an electric motor (6) removes the solid residue from th
47、e walls of the housing (7). The normal operating method of this centrifuge is of the continuous feeding and discharging of the processed products. The liquids pass out from the bowl through special weir holes: for oil phase (8) and for water phase (9). An electric motor (10) drives the bowl by a tra
48、nsmission device (11) (e.g.: pulleys, belts and hydraulic clutch). The scroll is rotated by means of a scroll driving device (12) (e.g.: pulleys, belts and gear box). 3.2.2 disc stack centrifuge centrifugal machine with vertical axis. It is used to separate oil from water and small quantity of resid
49、ual solid (see Figures 2 and 3). The feed enters the machine through a fixed vertical pipe (1). Inside the bowl, under the effect of the centrifugal force, the feed is separated into three layers: residual solid (2), water (3), and oil (4). The feed passes through the discs (5). The liquids pass out from the bowl through weir rings: for oil (6) and for water (7). Oil and water are collected under a fixed bowl cover (8) which acts as a support for the feed pip
