1、BSI Standards PublicationBS EN 12042:2014Food processing machinery Automatic dough dividers Safety and hygiene r e q u i r e m e n t sIncorporating corrigendum June 2014BS EN 12042:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12042:2014. Itsupersedes BS
2、EN 12042:2005+A1:2010, which is withdrawn.The UK participation in its preparation was entrusted by TechnicalCommittee MCE/3, Safeguarding of machinery, to SubcommitteeA list of organizations represented on this subcommittee can beobtained on request to its secretary.This publication does not purport
3、 to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 86796 5ICS 67.260Compliance with a British Standard cannot confer immunity fromlegal obligations.This
4、British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2014.Amendments/corrigenda issued since publicationDate Text affected30 June 2014 Implementation of CEN correction notice 30 April 2014: key to Figure 8 updatedMCE/3/5, Food industry machines
5、.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12042 April 2014 ICS 67.260 English Version Food processing machinery - Automatic dough dividers - Safety and hygiene requirements Machines pour les produits alimentaires - Diviseuses automatiques - Prescriptions relatives la scurit et lhygine Na
6、hrungsmittelmaschinen - Teigteilmaschinen - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 27 December 2013. 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
7、 national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German).
8、A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyp
9、rus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Ki
10、ngdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12042
11、:2014 EEN 12042:2014 (E) 2 Contents Page Foreword 4 Introduction . 5 1 Scope 6 2 Normative references 6 3 Terms, definition and description 8 3.1 Terms and definitions . 8 3.2 Description . 8 4 List of significant hazards 10 5 Safety and hygiene requirements and/or protective measures 11 5.1 General
12、 11 5.2 Mechanical hazards . 12 5.3 Electrical hazards 19 5.4 Emergency stop . 20 5.5 Unexpected start-up 20 5.6 Noise reduction 20 5.7 Protection against flour dust emission . 20 5.8 Hygiene requirements . 20 5.9 Ergonomic principles 21 5.10 Protection against spilling oil . 21 5.11 Pneumatic and h
13、ydraulic equipment . 22 6 Verification of safety and hygiene requirements and/or protective measures . 22 7 Information for use 23 7.1 Signals and warning 23 7.2 Instruction handbook 24 7.3 Marking . 25 Annex A (normative) Noise test code for automatic dividers Grade 2 of accuracy 27 A.1 Installatio
14、n and mounting conditions 27 A.2 Operating conditions . 27 A.3 Measurements 27 A.4 Emission sound pressure level determination . 27 A.5 Sound power level determination 27 A.6 Measurement uncertainties 28 A.7 Information to be recorded . 28 A.8 Information to be reported 28 A.9 Declaration and verifi
15、cation of noise emission values 29 Annex B (normative) Principles of design to ensure the cleanability of automatic dividers 30 B.1 Terms and definitions . 30 B.2 Materials of construction 30 B.3 Design . 32 BS EN 12042:2014EN 12042:2014 (E) 3 Annex ZA (informative) Relationship between this Europea
16、n Standard and the Essential Requirements of EU Directive 2006/42/EC 47 Bibliography 48 BS EN 12042:2014EN 12042:2014 (E) 4 Foreword This document (EN 12042:2014) has been prepared by Technical Committee CEN/TC 153 “Machinery intended for use with foodstuffs and feed”, the secretariat of which is he
17、ld 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 October 2014, and conflicting national standards shall be withdrawn at the latest by October 2014. Attention is drawn to the possibility
18、that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12042:2005+A1:2010. This document has been prepared under a mandate given to CEN by the European
19、 Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2006/42/EC. For relationship with EU Directive 2006/42/EC, see informative Annex ZA, which is an integral part of this document. Significant changes The significant changes with respect to the pr
20、evious edition EN 12042:2005+A1:2010 are listed below: Normative references updated; Clause 4: new presentation in a table; 5.2.2, zone 1: the requirements are the same when the loading of the machine is manual or automatic; addition of new requirements for pressure sensitive edge (see 5.2.2.2.2), A
21、OPD (see 5.2.2.2.3), cleaning of the hopper (se 5.2.2.2.6) and feeding assistance device inside the hopper (see 5.2.2.2.7); new stopping time 0,35 s; new performance level d. 5.2.3, zone 2: Table 1 (Dimensions of the guard or tunnel) replaced by a reference to EN ISO 13857; Instruction handbook upda
22、ted (environmental information). According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav R
23、epublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12042:2014EN 12042:2014 (E) 5 Introduction This
24、document is a type C standard as stated in EN ISO 12100:2010. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this document. When provisions of this type C standard are different from those that are stated in type A o
25、r B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. BS EN 12042:2014EN 12042:2014 (E) 6 1 Scope 1.1 This European Standard applies to the
26、design and manufacture of standalone automatic dough dividers, having a feed hopper, an outlet and a dividing system (see 3.2). These automatic dough dividers are used separately or in a line in the food industry and shops (pastry-making, bakeries, confectionery, etc.) for dividing dough or pastry i
27、nto adjustable portions to produce the required weight of dough piece during a dividing process. These machines can be fed by hand or mechanically. This European Standard deals with all significant hazards, hazardous situations and events relevant to the transport, installation, adjustment, operatio
28、n, cleaning, maintenance, dismantling, disassembling and scrapping of automatic dough dividers, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). These machines are not intended to be cleaned with pressurized water. 1.2
29、 This European Standard is not applicable to the following: experimental and testing machines, under development by the manufacturer; weighing devices; pressure dough dividers, without a feed hopper, using knives for the dividing process; lines with separate cutting or forming elements outside the h
30、ousing; lifting and tilting machines1)or other separate feeding machines; additional hazards generated when the machine is used in a line or mechanically fed. 1.3 A noise test code is included in Annex A to assist manufacturers to measure noise levels for the purpose of the noise emission declaratio
31、n. 1.4 This European Standard is not applicable to machines which are manufactured before its publication as EN. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the
32、edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 619:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of unit loads EN 894-4:2010, Safety of m
33、achinery - Ergonomics requirements for the design of displays and control actuators - Part 4: Location and arrangement of displays and control actuators EN 953:1997+A1:2009, Safety of machinery - Guards - General requirements for the design and construction of fixed and movable guards 1)see EN 13288
34、 BS EN 12042:2014EN 12042:2014 (E) 7 EN 1037:1995+A1:2008, Safety of machinery - Prevention of unexpected start-up EN 1088:1995+A2:2008, Safety of machinery - Interlocking devices associated with guards - Principles for design and selection EN 1672-2:2005+A1:2009, Food processing machinery - Basic c
35、oncepts - Part 2: Hygiene requirements EN 60204-1:2006, Safety of machinery - Electrical equipment of machines - Part 1: General requirements (IEC 60204-1:2005) EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529) EN 61310-1, Safety of machinery - Indication, marking and actu
36、ation - Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1) EN ISO 3743-1:2010, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for small movable sources in reverberant fields - Part 1: Compar
37、ison method for a hard-walled test room (ISO 3743-1:2010) EN ISO 3744:2010, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010) EN ISO 4413, Hydraulic
38、 fluid power - General rules and safety requirements for systems and their components (ISO 4413) EN ISO 4414, Pneumatic fluid power - General rules and safety requirements for systems and their components (ISO 4414) EN ISO 4871:2009, Acoustics - Declaration and verification of noise emission values
39、of machinery and equipment (ISO 4871) EN ISO 11201:2010, Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental correc
40、tions (ISO 11201:2010) EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100:2010) EN ISO 13857:2008, Safety of machinery - Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008) EN ISO 13849-1
41、:2008, Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13855:2010, Safety of machinery - Positioning of safeguards with respect to the approach speeds of parts of the human body (ISO 13855:2010) EN ISO 13856-1, Safety of
42、 machinery - Pressure-sensitive protective devices - Part 1: General principles for design and testing of pressure-sensitive mats and pressure-sensitive floors (ISO 13856-1) EN ISO 13856-2, Safety of machinery - Pressure-sensitive protective devices - Part 2: General principles for design and testin
43、g of pressure-sensitive edges and pressure-sensitive bars (ISO 13856-2) EN ISO 14122-2, Safety of machinery - Permanent means of access to machinery - Part 2: Working platforms and walkways (ISO 14122-2) BS EN 12042:2014EN 12042:2014 (E) 8 3 Terms, definition and description 3.1 Terms and definition
44、s For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply. 3.1.1 stopping time (time for hazard elimination) period between the point at which the interlocking device initiates the stop command and the point at which the risk from hazardous mac
45、hine functions has passed SOURCE: EN 1088:1995+A2:2008, 3.8 3.2 Description The dividers in the scope consist of the elements listed below (including optional equipment) (see Figure 1): 1) loading hopper; 2) feeding assistance device inside the hopper (optional, see one example at Figure 2); 3) divi
46、ding device which can be of one of the following types: rotating drum with chamber and piston; piston with or without cutting slide; rotating blades or cutting devices (e.g. knives, star rollers); and the operating mechanisms; 4) flour duster at the delivery of pieces of dough (optional); 5) one or
47、more conveyor belts designed to discharge pieces of dough; 6) one or more drive units to operate the dividing device and the discharge devices; 7) miscellaneous devices, e.g. to set the volume of the portions; 8) control panel; 9) oiling device (optional, not included in Figure 1); 10) moulding/roun
48、ding device (optional, not included in Figure 1). BS EN 12042:2014EN 12042:2014 (E) 9 Figure 1 Main parts of an automatic dough divider Key 1 star rollers 2 feeding assistance device (rollers) Figure 2 Example of a hopper equipped with a feeding assistance device and star rollers BS EN 12042:2014EN
49、12042:2014 (E) 10 4 List of significant hazards This clause contains all the significant hazards, hazardous situations and events identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce the risk (see Table 1). Table 1 List of significant hazards Hazards, hazardous situations and hazardous events Location or cause Clause/subclause in this European Standard Mechanical hazards (see Figure 3) 5.2 shearing, crushing and cutting Zone 1 - dividing zone or feeding as
