1、BRITISH STANDARDBS EN 12778:2002Incorporating Corrigendum No. 1 and Amendment No. 1Cookware Pressure cookers for domestic useThe European Standard EN 12778:2002, with the incorporation of amendment A1:2005, has the status of a British StandardICS 97.040.20; 97.040.60g49g50g3g38g50g51g60g44g49g42g3g5
2、8g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 12778:2002This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Policy a
3、nd Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 5 December 2002 BSI 2006ISBN 0 580 40904 XNational forewordThis British Standard is the official English language version of EN 12778:2002, including Corrigendum December 2003 and amendment A1:
4、2005. It supersedes BS 1746:1987 which is withdrawn.The start and finish of text introduced or altered by CEN amendment is indicated in the text by tags !“.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
5、 UK participation in its preparation was entrusted to Technical Committee 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-referencesThe British Standards which implement in
6、ternational or European publications referred to in this document 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 pu
7、rport to include all the necessary provisions of a contract. Users 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 committ
8、ee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 26, a
9、n inside back cover and a back cover.The BSI copyright date displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date Comments15012Corrigendum No. 15 March 2004 Annex ZA revised15679 30 June 2006 See national forewordEUROPEAN STANDARD NOR
10、ME 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 domestique Dampfkochtpfe This European Standard was approved by
11、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 national standard without any alteration. Up-to-date lists and bibliog
12、raphical 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 other language made by translation under the responsibility of a C
13、EN 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: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rights of explo
14、itation 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 national standards bodies of Austria, Belgium, Cyprus, Czech Republic
15、, 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.EN 12778:2002 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative refer
16、ences 4 3 Terms and definitions .4 4 Requirements.6 4.1 General6 4.2 Material .6 4.3 Manufacturing characteristics6 4.4 Lifting grips 7 4.5 Control and safety devices .7 4.5.1 General7 4.5.2 Pressure control device 8 4.5.3 Pressure indicator .8 4.5.4 Safety device9 4.5.5 Decompression device9 4.5.6
17、Safety at the opening 9 4.5.7 Mechanical resistance of safe opening systems .10 4.6 Closing of the pressure cooker10 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
18、 heating device 11 5 Tests11 5.1 General11 5.2 Tests and measurements relating to materials and coatings.11 5.3 Tests 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 Clea
19、ning of the pressure control devices and decompression devices13 5.3.5 Measurement of capacity14 5.4 Tests and measurements 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 Verificati
20、on of pressure control device .16 5.5.3 Verification of pressure indicator 17 5.5.4 Verifications of safety device .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
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 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 Esse
22、ntial Requirements of EU Directive 97/23/EC 25 Bibliography 26 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 status of a
23、 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 Free
24、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 standards org
25、anizations 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. Foreword to
26、 amendment A1 This document (EN 12778:2002/A1:2005) has been prepared by Technical Committee CEN/TC 194 “Utensils in contactwith 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 publicati
27、on 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 implement t
28、his 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.EN 127
29、78:2002 (E) 4 1 Scope This European Standard defines terms, establishes manufacturing, safety and functional requirements and corresponding tests and specifies data for marking, labelling and instructions for use, for pressure cookers. This standard is applicable to portable pressure cookers for dom
30、estic 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 mentioned in this text are related to atmospheric pressure. 2 Normative references This European Standard incorporates by dated or undate
31、d reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when i
32、ncorporated 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 cooking appliances burning gas fuel - Part 1-1: Safety - General. EN 60335-1, Safety of household and similar electrical appliances
33、 - 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 appliances for heating liquids (IEC 60335-2-15:1995). EN 12983-1:2000, Cookware - Domestic cookware for use on top of a stove, cook
34、er 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 cooker cookware equipped with a removable lid being able to be fitted, specifically for the purpose of allowing cooking of foodstuffs by
35、 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 pressure cooker, without the lid, is filled to the brim while standing on a level surface 3.3 gross volume internal volume of the pressure
36、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 pressure cooker 3.6 integrated heating heat source which constitutes an integral part of the pressure cooker EN 12778:2002 (E) 5 3.7 work
37、ing pressure actual pressure(s) at which cooking 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 manufactur
38、er 3.10 pressure control device device which 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
39、the cooker NOTE It can be one of the four types 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
40、system system actuated manually or automatically 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
41、 carried out to open the pressure cooker 3.13.2 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
42、or below this value, and before any opening operation 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 d
43、evice: coupled and uncoupled 3.14.1 coupled device 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 s
44、afe opening system of the pressure cooker, activated 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 EN 12778:2002 (E) 6 3.16 opened pressure cooker pressure cooker in which no device p
45、revents 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 depressurisation of the pressure cooker can be controlled by the user during t
46、he 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 construction of the pressure cooker: shall have mechanical characteristics suitable for i
47、ts 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 expect
48、ed lifetime, to any extent that may adversely affect the pressure cookers operation or safety. The pressure cooker shall be made of materials of a type and purity that, under normal conditions of use, present no toxic hazards nor in any way affect the organoleptic qualities of food prepared in it. C
49、oatings shall comply with the requirements of EN 12983-1. NOTE All the requirements for materials to comply with directive 97/23/CE are not addressed in this European Standard. 4.3 Manufacturing characteristics 4.3.1 The pressure cooker and its devices and accessories shall be designed and constructed so that all they require in the way of maintenance in addition to the maintenance specified by the manufacturer or supplier, is simple cleaning carried out without using special instruments. Particular care shall be taken over the finish of inside surfaces so tha
