1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13951:2012Liquid pumps Safetyrequirements Agrifoodstuffsequipment; Design rules toensure hygiene in useBS EN 13951:2012 BRITISH STANDARDNational forewordThis British Standa
2、rd is the UK implementation of EN 13951:2012. Itsupersedes BS EN 13951:2003 + A1:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/6, Pumps and pump testing.A list of organizations represented on this committee can beobtained on request to its se
3、cretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 74702 1ICS 23.080; 67.260Compliance with a British Standard c
4、annot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2012.Amendments issued since publicationDate Text affectedBS EN 13951:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13951 April 201
5、2 ICS 23.080; 67.260 Supersedes EN 13951:2003+A1:2008English Version Liquid pumps - Safety requirements - Agrifoodstuffs equipment; Design rules to ensure hygiene in use Pompes pour liquides - Prescriptions de scurit - Matriel agro-alimentaire; Rgles de conception pour assurer lhygine lutilisation F
6、lssigkeitspumpen - Sicherheitsanforderungen - Nahrungsmittelausrstungen; Konstruktionsregeln zur Sicherstellung der Hygiene bei der Verwendung This European Standard was approved by CEN on 22 January 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
7、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 application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard e
8、xists 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 Management Centre has the same status as the official versions. CEN members are the national
9、standards bodies of Austria, Belgium, Bulgaria, Croatia, 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,
10、 Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
11、 EN 13951:2012: EBS EN 13951:2012EN 13951:2012 (E) 2 Contents Page Foreword 4Introduction .51 Scope 52 Normative references 63 Terms and definitions .64 List of hazards 95 Hygiene: safety requirements and/or measures . 125.1 General . 125.2 Materials 125.2.1 Common requirements 125.2.2 Food areas .
12、125.2.3 Non-food areas 135.3 Design Food areas . 145.3.1 General design criteria . 145.3.2 Avoidance of product retention 145.3.3 Cleanability 145.3.4 Sterilization 155.3.5 Surface texture 165.3.6 Permanent and dismantleable joints General criteria 165.3.7 Process flow obstructions and intrusions .
13、165.3.8 Product contact bearings 165.3.9 Shaft seals . 165.3.10 Fasteners . 175.3.11 Access and drainage ports 175.3.12 Sensors and sensor connections . 175.4 Design - Non-food areas 175.4.1 General criteria 175.4.2 Bearings . 185.4.3 Quick-release fasteners . 185.5 Auxiliary liquids, barriers and l
14、ubricants . 185.6 Guards and shrouds . 185.7 Legs 186 Verification of hygiene measures . 186.1 General . 186.2 Inspection of documentation . 196.3 Inspection of the assembled pump or pump unit . 196.4 Materials 196.5 Level of cleanability 196.5.1 Cleanability levels 1 and 2 . 196.5.2 Cleanability le
15、vel 3 196.5.3 Cleanability level 4 206.6 Surface roughness test 207 Information for use . 207.1 General . 207.2 Instruction for use - Instruction handbook 20Annex A (informative) Materials in contact with foodstuffs (EU regulations). 21A.1 Metallic materials in contact with foodstuffs . 21BS EN 1395
16、1:2012EN 13951:2012 (E) 3 A.2 Elastomeric materials in contact with foodstuffs 21A.3 Plastic materials in contact with foodstuffs . 21Annex B (informative) Surface roughness 22Annex C (informative) Design practices 23Annex D (informative) Hygienic risk associated with types of pump inlet and outlet
17、connections 25D.1 General . 25D.2 Hazards sources 25D.3 Criteria to be taken into account . 25Annex E (informative) Hygienic risk linked to the choice of shaft sealing system and to the characteristics of the pumped product . 27Annex ZA (informative) Relationship between this European Standard and t
18、he Essential Requirements of EU Directive 2006/42/EC 28Bibliography 29BS EN 13951:2012EN 13951:2012 (E) 4 Foreword This document (EN 13951:2012) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of
19、 a national standard, either by publication of an identical text or by endorsement, at the latest by October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject
20、of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13951:2003+A1:2008. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and suppo
21、rts essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. The modifications brought to the previous version of EN 13951:2003 deal with normative reference updates, minor editorial changes, minor details
22、 add-on and the clause renumbering has been adapted accordingly. 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, Est
23、onia, Finland, 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 13951:2012EN 13951:2012 (E) 5 Introduction This documen
24、t is a type 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 document. When provisions of this type C standard are different from those which are stated in type A or B standar
25、ds, 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. In drafting this European Standard, it was assumed that pumps within the scope of this European S
26、tandard are in accordance with all relevant requirements of EN 809. EN 13951 provides additional hygiene related requirements to prevent the pump causing contamination of the pumped product when used in accordance with the instruction handbook. It is the responsibility of the manufacturer to ensure
27、that the pump is designed and manufactured such that it can be adequately cleaned. However, due to the influence of the product, the process and the cleaning regime adopted, it is only the end-user that can ultimately ensure hygienic conditions during operation. 1 Scope This European Standard deals
28、with the special technical safety requirements for liquid pumps and pump units operating with agrifood-stuff. This European Standard is intended to be used with EN 809 to give the additional requirements for hazards arising from the pumping of substances intended for human and domestic animal consum
29、ption (see Clause 4). This European Standard also establishes requirements and/or measures for the reduction of risks during use, including misuse foreseeable by the manufacturer. This European Standard is not intended to be used for pumps and pump units at any stage in the public water supply, nor
30、for pumps handling pharmaceutical products, nor for any other application for which more appropriate standards exist. The pumps and pump units covered by this European Standard are the following: rotodynamic pumps; rotary positive displacement pumps; reciprocating positive displacement pumps. Pumps
31、dealing with agrifood-stuff which are not indicated in this scope are potentially covered by EN 1672-2:2005+A1:2009. This document is not applicable to liquid pumps for agrifoodstuff applications which are manufactured before the date of its publication as an EN. BS EN 13951:2012EN 13951:2012 (E) 6
32、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 any amend
33、ments) applies. EN 809, Pumps and pump units for liquids Common safety requirements EN ISO 4287, Geometrical product specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters (ISO 4287:1997) EN ISO 12100:2010, Safety of machinery General principles for de
34、sign Risk assessment and risk reduction (ISO 12100:2010) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply. 3.1 food/agrifood-stuff products product, ingredient or material intended to be orally consumed at any sta
35、ge of its production process 3.2 food hygiene taking of all measures during the preparation and processing of food to ensure that it is fit for human or animal consumption SOURCE: EN 1672-2:2005+A1:2009 3.3 adverse influence reduction of the fitness for consumption of a food; a food can be adversely
36、 influenced in particular by microbial pathogens or other unwanted micro-organisms, toxins, vermin, domestic animals and other contaminants 3.4 areas of equipment Note 1 to entry: These areas are not to be confused with any others amongst those defined in other standards (e.g. electro-technical stan
37、dards). 3.4.1 food area set of machinery surfaces which are exposed to the food and from which the food or other materials can drain, drip, diffuse or be drawn into (self returned) the food or food container SOURCE: EN 1672-2:2005+A1:2009 3.4.2 non-food area area other than those specified above 3.5
38、 product/pumped product products passing through the pumps as a result of process, testing, cleaning, rinsing, or disinfecting products BS EN 13951:2012EN 13951:2012 (E) 7 3.6 cleaning set of operations which reduce the potential for contamination to an acceptable level 3.6.1 cleanable design and co
39、nstruction which permits soils to be removed by appropriate cleaning methods 3.6.2 cleanability ability of the pump to be cleaned by a defined procedure to defined conditions of cleanliness 3.6.2.1 cleaned in place or mechanical cleaning (CIP, NEP) CIP or NEP means soil removal by impingement, circu
40、lation or flowing chemical detergent solutions and water rinses into and on to the surfaces to be cleaned without dismantling Note 1 to entry: The term CIP corresponds to the abbreviation of the English wording “Cleaned In Place“. In French, the term NEP is the abbreviation of the wording “Nettoyage
41、 En Place“. In German, the term CIP is used. 3.6.2.2 cleaned out of place or manual cleaning (COP, NHP) COP or NHP means soil removal when the equipment is partially or totally dismantled Note 1 to entry: The term COP corresponds to the abbreviation of the English wording “Cleaned Out of Place“. In
42、French, the term NHP is the abbreviation of the wording “Nettoyage Hors Place“. In German, it is the term COP which is used. 3.7 contamination presence of soils SOURCE: EN 1672-2:2005+A1:2009 3.8 corrosion resistant material material resistant to normally occurring action of chemical or electrochemi
43、cal nature at all stages of food processing, cleaning and disinfection according to the instructions for use 3.9 crevice surface defect e.g. crack, fissure, which has an adverse influence on cleanability 3.10 dead space space wherein a pumped product, or soils may be retained or not completely remov
44、ed during the cleaning operation 3.11 disinfection process applied to a cleaned surface which is capable of reducing the numbers of viable micro-organisms, but not necessarily their spores, to a level considered safe for product production 3.12 sterilization validated process used to reach a state f
45、ree from viable micro-organisms including all relevant bacterial spores BS EN 13951:2012EN 13951:2012 (E) 8 Note 1 to entry: In a sterilization process, the nature of microbial death or reduction is described by an exponential function. Therefore, the number of micro-organisms that survive a sterili
46、zation process can be expressed in terms of probability. While the probability can be reduced to a very low number, it can never be reduced to zero. 3.13 durable ability of a surface to withstand the intended conditions of use, for example: to resist damage caused by the action of the process, conta
47、ct with the pumped product including thermal actions 3.14 joint junction of two or more pieces of material SOURCE: EN 1672-2:2005+A1:2009 3.15 non absorbent material material which, under intended conditions of use, does not retain substances with which it comes into contact so that it has no advers
48、e influence on pumped products 3.16 non toxic material material which does not produce or release substances injurious to health under intended conditions of use SOURCE: EN 1672-2:2005+A1:2009 3.17 seal component to prevent the unwanted entry or passage of any matter 3.18 self draining design and co
49、nstruction of the shape and surface finish so as to ensure the evacuation by gravity of the pumped products 3.19 smooth condition of a surface (with reference to surface finish) which satisfies operational and hygienic requirements 3.20 soil any unwanted matter, including product residues, micro-organisms, residual detergent or disinfecting agents SOURCE: EN 1672-2:2005+A1:2009 3.21 vermin animals (including mammals,
