1、 DEUTSCHE NORMMay 2006DIN EN 521 ICS 27.060.20 Supersedes DIN EN 521:1998-12 Specifications for dedicated liquefied petroleum gas appliances Portable vapour pressure liquefied petroleum gas appliances English version of DIN EN 521:2006-05 Festlegungen fr Flssiggasgerte Tragbare, mit Dampfdruck betri
2、ebene Flssiggasgerte Englische Fassung DIN EN 521:2006-05 Document comprises 69 pages No part of this standard may be reproduced without prior permission of DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards
3、 (DIN-Normen). English price group 20 www.din.de www.beuth.de !,nlc“10.06 9757364DIN EN 521:2006-05 2 National foreword This standard has been prepared by CEN/TC 181 Dedicated liquefied petroleum gas appliances (Secretariat: France). The responsible German body involved in its preparation was the No
4、rmenausschuss Gastechnik (Gas Tech-nology Standards Committee). Clauses 5, 6 and 8 of this standard include safety requirements. This standard covers construction and performance requirements, safety requirements, testing and designa-tion of appliances burning liquefied petroleum gases using no pres
5、sure control, i.e., at the vapour pressure within the gas container. The standard was prepared in response to a study carried out following a formal objection submitted by the Netherlands, and European mandate M/327. Private use of such appliances is regulated in DVGW Code of Practice G 612 Flssigga
6、sanlagen im Frei-zeitbereich zur Verwendung im Freien (Liquefied gas appliances for private outdoor use). Commercial use of such appliances is covered by safety regulation BGV D 34 Verwendung von Flssiggas (Use of liquefied gas). This standard has been included in the body of Codes of practice for g
7、as issued by the DVGW Deutscher Verein des Gas- und Wasserfaches e.V. (German Association of Gas and Water Engineers). The DIN Standard corresponding to the International Standard referred to in clause 2 of the EN is as follows: ISO 301 DIN EN 1774 Amendments This standard differs from the DIN EN 52
8、1:1998-12 as follows: a) Clause 5.7.2.1 has been revised. b) Annex C (Examples of authorized solutions) has been included. Previous editions DIN 3360-3: 1973-10, 1987-12 DIN 30684: 1982-03 DIN EN 521: 1998-12 DIN EN 521:2006-05 3 National Annex NA (informative) Bibliography DIN EN 1774, Zinc and zin
9、c alloys Alloys for foundry purposes Ingot and liquid DVGW-G 6121), Flssiggasanlagen im Freizeitbereich zur Verwendung im Freien (Liquefied gas appliances for private outdoor use) BGV D 3462), Verwendung von Flssiggas (Use of liquefied gas) 1)Obtainable from Wirtschafts- und Verlagsgesellschaft Gas
10、und Wasser mbH, Postfach 14 01 51, 53056 Bonn, Germany. 2)Obtainable from Carl Heymanns Verlag KG, Luxemburger Strae 449, 50939 Kln, Germany. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 521 February 2006 ICS 27.060.20 Supersedes EN 521:1998 English Version Specifications for dedicated lique
11、fied petroleum gas appliances -Portable vapour pressure liquefied petroleum gas appliances Spcifications pour les appareils fonctionnant exclusivement aux gaz de ptrole liqufis - Appareils portatifs aliments la pression de vapeur des gaz de ptrole liqufis Festlegungen fr Flssiggasgerte - Tragbare, m
12、it Dampfdruck betriebene Flssiggasgerte This European Standard was approved by CEN on 28 December 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.
13、 Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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
14、under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
15、 Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: r
16、ue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 521:2006: EEN 521:2006 (E) 2 Contents Page Foreword.5 1 Scope .6 2 Normative references .7 3 Terms and definitions 7 4 Classification.11 4.1 Cl
17、assification of gases:11 4.2 Categories of appliances: 11 5 Safety requirements .12 5.1 General.12 5.2 Conversion to different gases .12 5.3 Materials 12 5.4 Assembly, cleaning and maintenance12 5.5 Strength and stability .13 5.6 Soundness of the gas circuit assembly .14 5.7 Connections 14 5.8 Trans
18、port, fixing and mobility devices.16 5.9 Taps16 5.10 Control handles.17 5.11 Injectors .18 5.12 Ignition devices.18 5.13 Flame supervision devices 18 5.14 Burners and radiant elements.19 5.15 Grids.19 5.16 Turnspit19 5.17 Fireguards for heating appliances20 5.18 Locations and compartments for refill
19、able gas containers .20 5.19 Verification of the heat inputs .21 5.20 Resistance to overheating .21 5.21 Temperature of various parts of the appliance .21 5.22 Temperature of panels (floors, walls or ceilings)22 5.23 Ignition, crosslighting and flame stability22 5.24 Resistance to draught 22 5.25 Re
20、sistance to liquid spillage .23 5.26 Combustion.23 5.27 Accumulation of un-burnt gas.23 5.28 Safety at high temperature 23 5.29 Sooting - condensation23 5.30 Rational use of energy .23 6 Test methods.24 6.1 General.24 Table 1 Characteristics of the test gases .25 Table 2 Test conditions 26 6.2 Conve
21、rsion to different gases .26 6.3 Materials 26 6.4 Assembly, cleaning and maintenance26 6.5 Strength and stability .26 6.6 Soundness of the gas circuit assembly .29 6.7 Connections 29 EN 521:2006 (E) 3 6.8 Transport, fixing and mobility devices.31 6.9 Taps .31 6.10 Control handles 31 6.11 Injectors.3
22、1 6.12 Ignition devices 31 6.13 Flame supervision devices31 6.14 Burners and radiant elements.32 6.15 Grids 32 6.16 Turnspit .32 6.17 Fireguards for heating appliances32 6.18 Locations and compartments for refillable gas containers.33 6.19 Verification of heat inputs .33 6.20 Resistance to overheati
23、ng.34 6.21 Temperatures of the various parts of the appliance.35 6.22 Temperature of panels (floor, wall or ceiling) .36 6.23 Ignition, crosslighting and flame stability .36 6.24 Resistance to draught38 6.25 Resistance to liquid spillage .38 6.26 Combustion.39 6.27 Accumulation of un-burnt gases 40
24、6.28 Safety at high temperature 40 6.29 Sooting - condensation41 6.30 Rational use of energy.41 Table 3 Vessel diameter and mass of water relative to the burner heat input .41 7 Marking43 7.1 Appliance marking .43 7.2 Packaging marking.43 8 Instructions for use, maintenance and assembly.43 Figure 1
25、Cross section of a valve with centre boss 46 Figure 2 Adaptor .47 Figure 3 Tolerances of valve and adaptor threads48 Figure 4 Relative dimensions of the opening of the valve by the adaptor .49 Figure 5 Tolerance on rate.50 Figure 6 Apparatus for the test of resistance to thermal shock 50 Figure 7 Te
26、st clamp 51 Figure 8 Test probe.52 Figure 9 Verification of the combustion of individual hotplate burners - Sampling device .53 Figure 10 Verification of the combustion of all burners - Sampling device .54 Annex A (normative) Characteristics of test vessels (see 6.5.2.3)55 Figure A.A1 55 Table A.A1
27、Characteristics of pans necessary for testing.56 Annex B (normative) Tests on needle valves (see 6.9) 57 B.1 Resistance to temperature 57 B.2 Endurance .58 Annex C (informative) Examples of authorized solutions .59 Figure C.C1 59 Figure C.C2 Figure C.C3 60 Figure C.C4 Figure C.C5 61 EN 521:2006 (E)
28、4 Figure C.C6 Figure C.C7 62 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directive 63 Table ZA.1 63 Bibliography 66 EN 521:2006 (E) 5 Foreword This European Standard (EN 521:2006) has been prepared by Technical Committee CEN/TC
29、 181 “Dedicated liquefied petroleum gas appliances”, the secretariat of which is held by AFNOR. 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 August 2006, and conflicting national standards shal
30、l be withdrawn at the latest by August 2006. This European Standard supersedes EN 521:1998. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationsh
31、ip with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This European Standard only applies to type testing. In 2001 the Netherlands raised a formal objection in respect of 5.7.2.1 “appliances fitted to pierceable cartridges“ of standard EN 521:1998, on the gro
32、unds that it does not fully satisfy the essential requirements of Directive 90/396/EEC. The decision of the commission was that the standard EN 521:1998 shall continue to confer the presumption of conformity to the relevant provisions of Directive 90/396/EEC. At the same time, the European mandate M
33、/327 was created, with the aim of taking into account the risks emerged by the particular condition of the replacement of the gas cartridge in portable (camping) gas appliances, in order to improve the intrinsic level of safety with regards to the replacement of the cartridge. The revision of this E
34、uropean Standard is an answer to this mandate M/327. In the view of answering to this mandate, CEN/TC 181/WG 4 carried out a study on the pierceable appliances, whose conclusions are integrated in this European Standard. The modifications brought to this European Standard are focused on 5.7.2.1, and
35、 are the answer to the mandate M/327. A new informative annex (Annex C) is also included, and supplements the changes brought to paragraph 5.7.2.1. It gives examples of authorized solutions, which specify the connecting requirements regarding the replacement of pierceable cartridges. According to th
36、e CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxemb
37、ourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 521:2006 (E) 6 1 Scope This European Standard specifies the construction and performance characteristics related to safety and the rational use of energy of portable app
38、liances burning liquefied petroleum gases at the vapour pressure within the gas container. It also defines test methods and the requirements for marking and the information to be given in the instructions. NOTE These appliances are referred to in the body of the text as “appliances“. This European S
39、tandard applies to various types of portable appliances burning liquefied petroleum gases at vapour pressure and designed to be used with (non refillable) cartridges as complying with EN 417 or any types of gas cylinders other than cartridges. For example the following types of appliances are covere
40、d: a) cooking appliances (hotplates, grills, barbecues.). This European Standard does not cover barbecues that can be used indoors; b) lighting appliances; c) heating appliances. This European Standard only applies to appliances with a maximum heat input of up to 3 kW (Hs) for outdoor use only; d) b
41、lowlamps. This European Standard only applies to blowlamps without a flexible hose; e) laboratory burners. The requirements apply to these appliances or their functional sections whether or not the latter are independent or incorporated into an assembly. This European Standard only applies to type e
42、xamination. Appliances covered by this European Standard are not connected to a flue for the discharge of products of combustion and are not connected to the mains electricity supply. This European Standard covers neither appliances supplied with LPG in the liquid phase nor those incorporating a fix
43、ed gas reservoir which may or may not be refilled by the user. This European Standard does not cover gas containers or flexible hose. It does not apply to smokers lighters covered by EN ISO 9994. Requirements for rational use of energy have been included for hotplate burners. However, such requireme
44、nts have not been included for the other types of appliances because: for grills and barbecues, this is a type of cooking which is achieved by various means such as radiant elements; in addition this type of cooking varies according to the type of food and region where the appliance is used; for lig
45、hting appliances, the consumption is insignificant because these appliances have a very low rate and are used only for a few hours in a year; for heating appliances, all the heat produced is discharged into the environment; EN 521:2006 (E) 7 for tools such as blowtorches which are not professional t
46、ools in regular use, the gas consumption depends very much on the way it is used. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest editio
47、n of the referenced document (including any amendments) applies. EN 30-1-1, Domestic cooking appliances burning gas fuel Part 1-1: Safety General EN 125, Flame supervision devices for gas burning appliances Thermo-electric flame supervision devices EN 549, Rubber materials for seals and diaphragms f
48、or gas appliances and gas equipment EN 60335-1:2002, Household and similar electrical appliances Safety Part 1: General requirements (IEC 60335-1:2001, modified) ISO 301, Zinc alloy ingots intended for casting 3 Terms and definitions For the purposes of this European Standard, the following terms an
49、d definitions apply. 3.1 cooking device devices supplied with the appliance designed to hold or receive the food to be cooked NOTE grid, turnspit, baking tray etc. 3.2 detachable possible to dismantle without using a tool 3.3 vapour pressure appliance pressure at the inlet of the appliance is equal to the pressure in the gas container. If the appliance is fixed directly to the gas cylinder by a rigid connection, the appliance inlet is the part of the connection that takes the gas from the cylinder. A
