1、BSI Standards PublicationBS EN 1674:2015Food processing machinery Dough sheeters Safety andhygiene requirementsBS EN 1674:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1674:2015. It supersedes BS EN 1674:2000+A1:2009 which is withdrawn.The UK participatio
2、n in its preparation was entrusted to Technical Committee MCE/3/5, Food industry machines.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible f
3、or its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 78886 4 ICS 67.260 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy
4、 and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 1674:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1674 September 2015 ICS 67.260 Supersedes EN 1674:2000+A1:2009English Version Food processing machinery - Dough s
5、heeters - Safety and hygiene requirements Machines pour les produits alimentaires - Laminoirs pte - Prescriptions relative la scurit et lhygineNahrungsmittelmaschinen - Teigausrollmaschinen - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 1 August 2015. CEN membe
6、rs 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 bibliographical references concerning such national standards may be obtained on applicatio
7、n to the CEN-CENELEC 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 CEN member into its own language and notified to the CEN-CENELEC Manageme
8、nt Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
9、ithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17,
10、 B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1674:2015 EBS EN 1674:2015EN 1674:2015 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 6 2 Normative references 6 3 Terms, definitions and descr
11、iption 7 3.1 Terms and definitions . 7 3.2 Description 7 4 List of significant hazards 8 5 Safety and hygiene requirements and/or protective measures . 10 5.1 General . 10 5.2 Mechanical hazards . 11 5.2.1 General . 11 5.2.2 Loss of stability . 15 5.3 Electrical hazards . 15 5.3.1 General . 15 5.3.2
12、 Protection against electric shock . 15 5.3.3 Protection against earth faults in control circuits . 15 5.3.4 Motor enclosures 15 5.3.5 Unexpected start-up 15 5.4 Requirements concerning flour dust emission . 15 5.5 Hygiene requirements 16 5.5.1 General . 16 5.5.2 Food area . 16 5.5.3 Splash area 17
13、5.5.4 Non-food area 17 5.6 Hazards generated by neglecting ergonomic principles . 17 6 Verification of safety and hygiene requirements and/or measures . 17 7 Information for use . 18 7.1 Instruction handbook . 18 7.2 Marking 19 Annex A (normative) Principles of design to ensure the cleanability of d
14、ough sheeters . 20 A.1 Terms and definitions 20 A.2 Materials of construction 20 A.3 Design . 22 Annex B (normative) Noise test code Grade 2 of accuracy 38 B.1 General . 38 B.2 Terms and definitions 38 B.3 Installation and mounting conditions 38 BS EN 1674:2015EN 1674:2015 (E) 3 B.4 Operating condit
15、ions . 38 B.5 Measurements . 38 B.6 Emission sound pressure level determination 38 B.7 Sound power level determination 39 B.8 Measurement uncertainties 39 B.9 Information to be recorded. 39 B.10 Information to be reported . 39 B.11 Declaration and verification of noise emission values . 40 Annex ZA
16、(informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC 41 Bibliography . 42 BS EN 1674:2015EN 1674:2015 (E) 4 European foreword This document (EN 1674:2015) has been prepared by Technical Committee CEN/TC 153 “Machinery intended for use wi
17、th 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 March 2016, and conflicting national standards shall be withdrawn at the latest by
18、 March 2016. Attention is drawn to the possibility 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 1674:2000+A1:2009. This document has been pre
19、pared under a mandate given to CEN by the European 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 chan
20、ges: The significant changes with respect to the previous edition EN 1674:2000+A1:2009 are listed below: normative references were updated; list of significant hazards and dangers zones for mechanical hazards were specified more detailed; new sub-clauses: 5.3.5 (Unexpected start-up) and 5.4 (flour d
21、uster). 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 Republic of Macedonia, Fra
22、nce, 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 1674:2015EN 1674:2015 (E) 5 Introduction This European Standard is a type
23、-C-standard as stated in EN ISO 12100. 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- or B-standard
24、s, 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 1674:2015EN 1674:2015 (E) 6 1 Scope This European Standard specifies safety and hygiene requ
25、irements for the design and manufacture of dough sheeters, as described in Clause 3, used in the food industry and craft activities (bread-making, pastry-making, sweet industries, bakeries, confectioners, delicatessens, catering facilities, etc.) for reducing the thickness of a solid mass of dough o
26、r pastry by rolling it out. This European Standard deals with all significant hazards, hazardous situations and events relevant to the transport, installation, adjustment, operation, cleaning, maintenance, dismantling, disassembling and scrapping of dough mixers, when they are used as intended and u
27、nder the conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). This European Standard deals with all significant hazards, hazardous situations and events relevant to dough sheeters, when they are used as intended and under conditions of misuse which are reasonably
28、 foreseeable by the manufacturer (see Clause 5). Noise is not considered to be a significant hazard. This does not mean that the manufacturer is absolved from reducing noise and making a noise declaration. Therefore a noise test code is given in Annex B. The following machines are excluded: experime
29、ntal and testing machines under development by the manufacturer; dough sheeters where the dough is fed to the rollers by gravity (e.g. pizzabase dough sheeters); domestic appliances1). This European Standard is not applicable to dough sheeters which are manufactured before the date of its publicatio
30、n 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 edition cited applies. For undated references, the latest edition of the referenced document (including
31、any amendments) applies. EN 614-1:2006+A1:2009, Safety of machinery Ergonomic design principles Part 1: Terminology and general principles EN 953, Safety of machinery Guards General requirements for the design and construction of fixed and movable guards EN 1672-2:2005+A1:2009, Food processing machi
32、nery Basic concepts Part 2: Hygiene requirements EN 60204-1:2006, Safety of machinery Electrical equipment of machines Part 1: General requirements (IEC 60204-1:2005, modified) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN ISO 3743-1, Acoustics Determination of soun
33、d power levels and sound energy levels of noise sources using sound pressure Engineering methods for small movable sources in reverberant fields Part 1: Comparison method for a hard-walled test room (ISO 3743-1) 1) EN 60335-1 and EN 60335-2-64 are applicable BS EN 1674:2015EN 1674:2015 (E) 7 EN ISO
34、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 4287, Geometrical product specifications (GPS) Surface texture: Profile method Terms
35、, definitions and surface texture parameters (ISO 4287) EN ISO 4871, Acoustics Declaration and verification of noise emission values of machinery and equipment (ISO 4871) EN ISO 11201, Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work statio
36、n and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections (ISO 11201) EN ISO 12001, Acoustics Noise emitted by machinery and equipment Rules for the drafting and presentation of a noise test code (ISO 12001) EN ISO 12100:2010, S
37、afety of machinery General principles for design Risk assessment and risk reduction (ISO 12100:2010) 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 13857:2008, Safety of machinery Safety distances to pr
38、event hazard zones being reached by upper and lower limbs (ISO 13857:2008) EN ISO 14119:2013, Safety of machinery Interlocking devices associated with guards Principles for design and selection (ISO 14119:2013) 3 Terms, definitions and description 3.1 Terms and definitions For the purposes of this d
39、ocument, the terms and definitions given in EN ISO 12100:2010 and the following apply. 3.1.1 manual operation the rollers and conveyor belts are driven by electric motor and the rollers gap is adjusted by hand control 3.1.2 automatic operation the machine is normally automatically controlled and the
40、 rollers gap is adjusted by an electric motor 3.2 Description A dough sheeter usually consists of a machine frame mounted on a mobile or fixed base or placed on a table or a support. The operation is carried out by passing the dough back and forth between the rollers whose distance apart is reduced
41、progressively either by manual adjustment or automatically. The frame supports the following components (see Figure 1): 1) the electric motor which drives the rollers; BS EN 1674:2015EN 1674:2015 (E) 8 2) two superimposed rollers. The height of the lower one is fixed, the height of the upper one can
42、 be adjusted to obtain dough of the desired thickness. The two rollers rotate in opposite directions; 3) scraping devices to remove dough residues from the rollers; 4) a table or conveyor on one sides or both sides of the rollers; 5) the control system which may include an on/off switch, a device fo
43、r reversing the direction of rotation, and a rollers gap adjustment control; 6) an optional attachment to spread flour; 7) optional devices to cut dough and to roll dough. The cutting device is used at the end of the rolling phase to cut predetermined forms from the dough. The system is often compos
44、ed of a roller fitted with circular knives for making bands, and of a roller fitted with imprints to make special forms such as croissants, chocolate filled pastry tartlets, etc. Rolling up the dough can be done by using a winding net to make special rolled forms such as croissant etc. The capacity
45、of the machine is defined by the width of the in-feed table (or conveyors). Figure 1 Main parts of a dough sheeter 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 a
46、nd which require action to eliminate or reduce the risk (see Table 1). BS EN 1674:2015EN 1674:2015 (E) 9 Table 1 List of significant hazards Danger zones Mechanical hazards (see Figure 2) Clause/subclause in this European Standard Zone 1: gap between the two rollers on the in-running side drawing-in
47、 and crushing 5.2.1.1 Zone 2: gap between the fixed support for the dough and the lower roller drawing-in and crushing 5.2.1.2 Zone 3: gap between the rollers and the side guards scraping 5.2.1.1 Zone 4: drive mechanism shearing 5.2.1.3 entanglement Zone 5: input and output devices: gap between conv
48、eyor belts and their drive or guide rollers drawing-in and crushing 5.2.1.4 Zone 6 (optional): dough cutting/rolling devices, either power driven or driven by friction between the blades and the belt cutting 5.2.1.5 Zone 7 (optional): removable attachment to spread flour drawing-in and crushing 5.2.
49、1.6 Zone 8: space between the roller and the scraping device drawing-in and crushing 5.2.1.7 Loss of stability 5.2.2 Electrical hazards 5.3 Hazards generated by unexpected start-up 5.3.5 Hazards generated by materials and substances (e.g. inhalation of dust) 5.4 Hazards generated by neglecting hygienic design principles 5.5 Hazards generated by neglecting ergonomic principles 5.6 BS EN 1674:2015EN 1674:2015 (E) 10 Key 1 Zone 1: gap between the two rollers on the in-running sid
