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1、BRITISH STANDARD BS EN 12778:2002 Incorporating Corrigendum No. 1 and Amendment No. 1 Cookware Pressure cookers for domestic use The European Standard EN 12778:2002, with the incorporation of amendment A1:2005, has the status of a British Standard ICS 97.040.20; 97.040.60 ? Licensed copy: The Univer
2、sity of Hong Kong, The University of Hong Kong, Version correct as of 28/03/2009 01:57, (c) BSI BS EN 12778:2002 This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Policy and Strategy Committee, was published under the authority of the Standa
3、rds Policy and Strategy Committee on 5 December 2002 BSI 2006 ISBN 0 580 40904 X National foreword This British Standard is the official English language version of EN 12778:2002, including Corrigendum December 2003 and amendment A1:2005. It supersedes BS 1746:1987 which is withdrawn. The start and
4、finish of text introduced or altered by CEN amendment is indicated in the text by tags ?. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by ?. The UK participation in its preparation was entrusted to Technical Com
5、mittee CW/9, Cooking and catering containers, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document
6、 may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Use
7、rs are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change
8、, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 26, an inside back cover and a back cover. The BSI copyright date
9、displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 15012 Corrigendum No. 1 5 March 2004Annex ZA revised 1567930 June 2006See national foreword Licensed copy: The University of Hong Kong, The University of Hong Kong, Versi
10、on correct as of 28/03/2009 01:57, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12778 November 2002 ICS 97.040.20; 97.040.60 Incorporating corrigendum December 2003 English version Cookware - Pressure cookers for domestic use Articles culinaires usage domestique - Autocuiseurs usage
11、domestique Dampfkochtpfe This European Standard was approved by CEN on 10 October 2002. Amendment A1 was approved by CEN on 14 April 2005. 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 nation
12、al standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any ot
13、her language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre:
14、rue de Stassart, 36 B-1050 Brussels 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12778:2002 + A1:2005 E + A1 June 2005 (includes amendment A1:2005) (inclut lamendement A1:2005) (enthlt nderung A1:2005) CEN members are the n
15、ational standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
16、Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 28/03/2009 01:57, (c) BSI EN 12778:2002 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Requirements.6 4.1 General6 4.2 Material .6 4.3 Manufacturing characteri
17、stics6 4.4 Lifting grips7 4.5 Control and safety devices.7 4.5.1 General7 4.5.2 Pressure control device8 4.5.3 Pressure indicator .8 4.5.4 Safety device9 4.5.5 Decompression device9 4.5.6 Safety at the opening 9 4.5.7 Mechanical resistance of safe opening systems .10 4.6 Closing of the pressure cook
18、er10 4.7 Resistance to pressure .10 4.7.1 Resistance to deformation of the body and the lid10 4.7.2 Resistance to destruction of the body and the lid.11 4.8 Pressure cookers with integral heating device 11 5 Tests11 5.1 General11 5.2 Tests and measurements relating to materials and coatings.11 5.3 T
19、ests and measurements relating to manufacturing characteristics 11 5.3.1 Maintenance and surface finish.11 5.3.2 Deviation of the bottom.12 5.3.3 Design of the closing ring.13 5.3.4 Cleaning of the pressure control devices and decompression devices13 5.3.5 Measurement of capacity14 5.4 Tests and mea
20、surements relating to lifting grips 14 5.4.1 Physical and mechanical tests.14 5.4.2 Temperatures measurement.14 5.5 Tests on control and safety devices16 5.5.1 General16 5.5.2 Verification of pressure control device.16 5.5.3 Verification of pressure indicator 17 5.5.4 Verifications of safety device.
21、17 5.5.5 Verification of decompression device.19 5.5.6 Opening tests.19 5.5.7 Mechanical resistance test of safe opening systems21 5.6 Tests relating to opening and closing devices.21 5.7 Tests relating to resistance to pressure .21 5.7.1 Test of resistance to deformation of the body and the lid 21
22、5.7.2 Test of resistance to destruction of the body and the lid .21 6 Marking, labelling and handbook.22 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC 25 Bibliography26 Licensed copy: The University of Hong Kong, The Univer
23、sity of Hong Kong, Version correct as of 28/03/2009 01:57, (c) BSI ? EN 12778:2002 (E) 3 Foreword This document EN 12778:2002 has been prepared by Technical Committee CEN /TC 194 “Utensils in contact with food“, the secretariat of which is held by BSI. This European Standard shall be given the statu
24、s of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest by May 2003. This document has been prepared under a mandate given to CEN by the European Commission and the European
25、 Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. This document includes a Bibliography. According to the CEN/CENELEC Internal Regulations, the national standar
26、ds organizations of the following countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Forew
27、ord to amendment A1 This document (EN 12778:2002/A1:2005) has been prepared by Technical Committee CEN/TC 194 “Utensils in contact with food”, the secretariat of which is held by BSI. This Amendment to the European Standard EN 12778:2002 shall be given the status of a national standard, either by pu
28、blication of an identical text or by endorsement, at the latest by December 2005, and conflicting national standards shall be withdrawn at the latest by December 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impl
29、ement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom
30、. Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 28/03/2009 01:57, (c) BSI ? EN 12778:2002 (E) 4 1 Scope This European Standard defines terms, establishes manufacturing, safety and functional requirements and corresponding tests and specifies data for
31、marking, labelling and instructions for use, for pressure cookers. This standard is applicable to portable pressure cookers for domestic use, with gross volume up to 25 I, with working pressure over 4 kPa and less than 150 kPa, with either integrated or independent heating. NOTE All pressures mentio
32、ned in this text are related to atmospheric pressure. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. F
33、or dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 30-1-1, Domestic
34、cooking appliances burning gas fuel - Part 1-1: Safety - General. EN 60335-1, Safety of household and similar electrical appliances - Part 1: General requirements (IEC 60335- 1:1991, modified). EN 60335-2-15, Safety of household and similar electrical appliances - Part 2: Particular requirements for
35、 appliances for heating liquids (IEC 60335-2-15:1995). EN 12983-1:2000, Cookware - Domestic cookware for use on top of a stove, cooker or hob Part 1: General requirements. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 pressure cook
36、er cookware equipped with a removable lid being able to be fitted, specifically for the purpose of allowing cooking of foodstuffs by water and/or steam under pressure. It can be used on a stovetop or can be equipped with an integrated heating source 3.2 capacity volume of water held when the pressur
37、e cooker, without the lid, is filled to the brim while standing on a level surface 3.3 gross volume internal volume of the pressure cooker limited by the body and the lid 3.4 usable capacity two thirds of the capacity 3.5 independent heating heat source not constituting an integral part of the press
38、ure cooker 3.6 integrated heating heat source which constitutes an integral part of the pressure cooker Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 28/03/2009 01:57, (c) BSI ? EN 12778:2002 (E) 5 3.7 working pressure actual pressure(s) at which cook
39、ing takes place 3.8 control pressure pressure(s) declared by the manufacturer or supplier, at which the pressure control device works 3.9 maximum allowable pressure PS maximum pressure for which the pressure cooker is designed, specified by the manufacturer 3.10 pressure control device device which
40、stabilises the pressure inside the pressure cooker during use 3.11 safety device device which prevents the pressure cooker from exceeding the safety pressure 3.12 pressure indicator visual and/or acoustic device indicating that there is a pressure inside the cooker NOTE It can be one of the four typ
41、es specified in 4.5.3. 3.13 safe opening system system manual or automatic intended to prevent the pressure cooker from opening when it is under pressure NOTE These systems can be used independently or coupled with the decompression system. 3.13.1 manual system system actuated manually or automatica
42、lly during or after the closing operation, intended to prevent the pressure cooker opening until the user unlocks the system with a manual action distinct from the opening operation, or carries out an operation contained in the sequence of events normally carried out to open the pressure cooker 3.13
43、.2 automatic system system which automatically prevents the pressure cooker from being opened if the internal pressure is higher than a certain value. This system is automatically unlocked, without any users action, when the internal pressure is equal to or below this value, and before any opening o
44、peration can be effected (see 4.5.6) 3.14 decompression device device intended to reduce, by its own action, the internal pressure of the pressure cooker, by a substantial emission of steam accumulated in the cooker. There are two types of decompression device: coupled and uncoupled 3.14.1 coupled d
45、evice decompression device, coupled to the safe opening system of the pressure cooker. This device, as long as it is not activated, automatically prevents the opening of the pressure cooker 3.14.2 uncoupled device decompression device independent of the safe opening system of the pressure cooker, ac
46、tivated by a manual action, distinct from the opening operation 3.15 closed pressure cooker pressure cooker in which an internal pressure higher than 4 kPa can be reached Licensed copy: The University of Hong Kong, The University of Hong Kong, Version correct as of 28/03/2009 01:57, (c) BSI ? EN 127
47、78:2002 (E) 6 3.16 opened pressure cooker pressure cooker in which no device prevents the separation of the lid from the body 3.17 opening and closing device all devices which affect the opening and closing of the appliance and its pressure tightness 3.18 progressive opening system of opening where
48、depressurisation of the pressure cooker can be controlled by the user during the opening operation 4 Requirements 4.1 General Test and check methods relating to each of the following paragraphs are described in the corresponding paragraphs of clause 5. 4.2 Material Materials used for the constructio
49、n of the pressure cooker: ? shall have mechanical characteristics suitable for its manufacture and use; ? shall have adequate chemical resistance. They shall not be damaged under the effect of water, food and domestic cleaning products, in any way which may adversely affect the pressure cookers operation or safety; ? shall not be sensitive to ageing or corrosion during their expected lifetime, to any extent that may adversely affect the pressure