1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 997:2012WC pans and WC suites with integral trapCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or netw
2、orking permitted without license from IHS-,-,-BS EN 997:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 997:2012. It supersedes BS EN 997:2003, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e B
3、 / 5 0 3 , S a n i t a r y a p p l i a n c e s .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 for its correct application. The British St
4、andards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 70206 8 ICS 91.140.70 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2012
5、.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 997:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
6、 997 February 2012 ICS 91.140.70 Supersedes EN 997:2003English Version WC pans and WC suites with integral trap Cuvettes de WC et cuvettes rservoir attenant siphon intgr WC-Becken und WC-Anlagen mit angeformtem Geruchverschluss This European Standard was approved by CEN on 9 December 2011. CEN membe
7、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
8、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
9、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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherland
10、s, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, 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 exploitati
11、on in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 997:2012: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 997:2012EN 997:2012 (E)
12、2 Contents Page Foreword 51 Scope 62 Normative references 63 Terms and definitions .74 Classification . 105 Functional requirements and test methods for class 1 products . 105.1 Depth of water seal . 105.2 Flushing requirements . 105.2.1 General . 105.2.2 Wash of bowl . 115.2.3 Flushing of toilet pa
13、per 115.2.4 Flushing of fifty small plastic balls . 115.2.5 Oversplashing . 115.2.6 After-flush volume 115.3 Water absorption 115.4 Static load 115.5 Additional requirements of flushing cisterns for close-coupled suites and one-piece WCs . 125.5.1 General . 125.5.2 Inlet valve of the flushing cister
14、n 125.5.3 Supply piping 125.5.4 Flush volume(s) of the flushing cistern . 125.5.5 Leaktightness between flushing cistern and bowl 125.5.6 Outlet valve leaktightness . 125.5.7 Outlet valve reliability . 125.5.8 Overflow . 125.5.9 Safety margin dimension “c” 135.5.10 Safety margin dimension “a” 145.6
15、Durability . 145.7 Test methods . 145.7.1 Depth of water seal . 145.7.2 Flushing tests 145.7.3 Determination of water absorption . 175.7.4 Load test 195.7.5 Tests for flushing cisterns of close-coupled suites and one-piece WCs . 195.8 Types of independent WC pans, close-coupled suites and one-piece
16、WCs 225.8.1 Nominal flush volume 225.8.2 Flushing devices . 225.8.3 Verification of types . 236 Functional requirements and test methods for class 2 products . 236.1 Inlet valve . 236.2 Backflow prevention . 236.3 Marking of flushing cistern 236.4 Warning pipe and overflow provision. 236.5 Flush vol
17、ume . 246.5.1 Full flush 246.5.2 Reduced flush . 246.6 Flush rate . 246.7 Physical endurance and leakage of flushing device . 246.8 Chemical endurance of flushing device . 24Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networ
18、king permitted without license from IHS-,-,-BS EN 997:2012EN 997:2012 (E) 3 6.9 Solids discharge and after-flush volume for maximum flush 246.10 Paper discharge for reduced-flush volume 246.11 Liquid contaminant dye retention 256.12 Wash of bowl . 256.13 Depth of water seal 256.14 Static load of cla
19、ss 2 products 256.15 Water absorption . 256.16 Durability of class 2 products 256.17 Test methods . 256.17.1 Inlet valve tests 256.17.2 Warning pipe and overflow provisions . 266.17.3 Flush volume and water trap seal tests 266.17.4 Flush rate test 276.17.5 Physical endurance and leakage test of flus
20、hing device 286.17.6 Chemical endurance test of flushing device 296.17.7 Solids discharge and after-flush volume for maximum flush volume test . 296.17.8 Paper discharge for reduced-flush volume test . 306.17.9 Liquid contaminant dye retention test 316.17.10 Wash of bowl . 326.17.11 Summary of requi
21、rements for compatibility testing of class 2 products 327 Marking . 338 Evaluation of conformity 358.1 General . 358.2 Type testing . 358.2.1 Initial type testing 358.2.2 Further type testing . 358.2.3 Sample, testing and compliance criteria. 358.3 Factory Production Control (FPC) . 378.3.1 General
22、. 378.3.2 Testing equipment . 378.3.3 Raw materials and components 388.3.4 Product testing and assessment . 388.3.5 Non-conforming products 38Annex A (normative) Valve-type test flushing cistern 39A.1 Valve-type test flushing cistern (Figures A.1 to A.3) . 39A.2 Calibration of the valve-type test fl
23、ushing cistern . 41A.3 Procedure to test the flush rate of the test flushing cistern . 41A.4 Procedure to test the flushing requirements of the WC 42A.5 Procedure to measure the impact force of the test flushing cistern . 42A.5.1 General . 42A.5.2 Test device . 42A.5.3 Procedure for calibrating the
24、load cell unit and the measurement amplifier 44A.5.4 Measurement procedure . 44A.5.5 Calculation procedure for fixed time frame 0,35 s to 0,5 s . 45A.5.6 Calculation procedure for maximum impact force 45Annex B (normative) Test rig for test pressure flush valve . 46B.1 Test rig (Figure B.1) . 46B.2
25、Procedure to measure the impact force 47Annex C (normative) Test rig for after-flush volume test . 49C.1 Test rig for after-flush volume test for independent WC pans (Figures C.1 and C.2) 49C.2 Test rig for after-flush volume test for one-piece WC pans, close-coupled suites and WC suites (Figure C.3
26、) . 50Annex D (normative) Basket method 51Annex E (normative) Preparation of test specimens 52Annex F (informative) Examples of flush pipes and outlet valves for test flushing cisterns . 54Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reprodu
27、ction or networking permitted without license from IHS-,-,-BS EN 997:2012EN 997:2012 (E) 4 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU of EU Construction Products Directive 58ZA.1 Scope and relevant characteristics 58ZA.2 Procedure for attestation of
28、conformity of independent WC pans, WC suites and one-piece WC pans 60ZA.2.1 System of attestation of conformity . 60ZA.2.2 Declaration of conformity 60ZA.3 CE marking 61Bibliography . 62Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproducti
29、on or networking permitted without license from IHS-,-,-BS EN 997:2012EN 997:2012 (E) 5 Foreword This document (EN 997:2012) has been prepared by Technical Committee CEN/TC 163 “Sanitary appliances”, the secretariat of which is held by UNI. This European Standard shall be given the status of a natio
30、nal standard, either by publication of an identical text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdrawn at the latest by November 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of paten
31、t rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 997:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requ
32、irements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This standard is one of a series of standards for sanitary appliances. Supporting standards are those for flushing devices and connecting dimensions. a) by reason
33、 of the actual market development, testing the flushing requirements has been specified. In this connection, requirements for test flushing cistern and its calibration have been adjusted to these conditions (introduction of the new parameter impact force); b) requirements and test methods for close-
34、coupled suites and one-piece WCs have been extended and adjusted to those for flushing cisterns in accordance with EN 14055. NOTE Noise level has not been considered in the present amendment. Noise level will be considered as soon as a European test method is available. 1)According to the CEN/CENELE
35、C 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
36、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. 1)Presently, a test method is under elaboration by CEN/TC 126 “Acoustic properties of building products and of buildings” Copyright European Committee fo
37、r Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 997:2012EN 997:2012 (E) 6 1 Scope This European Standard specifies constructional and performance requirements together with test methods for close-coupled
38、 suites, one-piece and independent WC pans with integral trap used for personal hygiene manufactured from glazed ceramics or stainless steel. This European Standard does not apply to squatting toilets, WC pans without integral trap or flushing cisterns as separate appliances. In the case of independ
39、ent WC pans, the associated flushing cisterns and pressure valves are covered by other standards and the reference to cisterns in this standard is related only to the definition and requirements of flushing volume. In the case of close-coupled suites and one-piece WCs, this standard also specifies d
40、esign, performance requirements and the test methods for designated flushing cisterns with flushing mechanisms, inlet valves and overflows. For these products, this standard covers flushing cisterns designed to be connected to drinking water installations inside buildings. Before installation of WCs
41、, EN 12056-2 and national requirements need to be taken into consideration. 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 re
42、ferences, the latest edition of the referenced document (including any amendments) applies. EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow EN 12056-2, Gravity drainage systems inside buildings Part 2:
43、 Sanitary pipework, layout and calculation EN 13618, Flexible hose assemblies in drinking water installations Functional requirements and test methods EN 14124, Inlet valves for flushing cisterns with internal overflow AS 1172-1, Water closets of 6/3 l capacity pans BS 1212-2:1990, Float operated va
44、lves. Specification for diaphragm type float operated valves (copper alloy body) (excluding floats) BS 1212-3:1990, Float operated valves. Specification for diaphragm type float operated valves (plastics bodied) for cold water services only (excluding floats) BS 1212-4:1991, Float operated valves. S
45、pecification for compact type float operated valves for WC flushing cisterns (including floats) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 997:2012EN 997:2012 (E) 7 3
46、Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE Drawings are diagrammatic only. 3.1 glazed ceramic ceramic material for sanitary appliances with all visible surfaces glazed when installed 3.2 WC pan bowl-shaped appliance for reception and flus
47、hing away of human solid and liquid excrement 3.3 pedestal WC pan floor-mounted WC pan that has an integral foot 3.4 wall-hung WC pan WC pan cantilevered clear of the floor 3.5 back-to-wall WC pan pedestal WC pan whose back is in contact with the wall 3.6 wash-out WC pan WC pan in which excrement fa
48、lls first into a shallow water filled bowl, before being removed by the flushing water 3.7 wash-down WC pan WC pan in which excrement falls directly into the trap before being removed by the flushing water 3.8 siphonic WC pan WC pan in which excrement is removed by siphonage induced by the flushing water 3.9 close-coupled suite combination of a WC pan and flushing cistern directly coupled into a functional unit 3.10
