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1、BRITISH STANDARD BS EN 997:2003 Incorporating corrigendum no. 1 and amendment no. 1 WC pans and WC suites with integral trap The European Standard EN 997:2003, incorporating amendment A1:2006, has the status of a British Standard ICS 91.140.70 ? BS EN 997:2003 This British Standard was published und
2、er the authority of the Standards Policy and Strategy Committee on 25 September 2003 BSI 2007 ISBN 0 580 42697 1 National foreword This British Standard was published by BSI. It is the UK implementation of EN 997:2003, incorporating amendment A1:2006. It supersedes BS EN 997:1999, BS 5503-3:1990, BS
3、 5504-3:1977, BS 5504-4:1990 and BS 7358:1990 which are withdrawn. The start and finish of text introduced or altered by 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 indicate
4、d by !“. The UK participation in its preparation was entrusted to Technical Committee B/503, Sanitary appliances. 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
5、. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 14805 Corrigendum No. 1 13 October 2003Error in date on national foreword 1696528 February 2007See national
6、 foreword EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 997 + A1 September 2003 ICS 91.140.70Supersedes EN 997:1999 English 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
7、 European Standard was approved by CEN on 2 July 2003. 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 bibliographical references
8、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 CEN member into its o
9、wn language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Port
10、ugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwid
11、e for CEN national Members. Ref. No. EN 997:2003 E December 2006 EN 997:2003 (E) 2 Contents page Foreword4 1Scope 5 2Normative references 5 3Terms and definitions5 4Classification8 5Functional requirements and test methods for class 1 products.8 5.1Depth of water seal8 5.2Flushing requirements 8 5.2
12、.1General8 5.2.2Wash of bowl9 5.2.3Flushing of toilet paper .9 5.2.4Flushing of fifty small plastic balls9 5.2.5Over-splashing.9 5.2.6After-flush volume .9 5.3Water absorption .9 5.4Static load.9 5.5Leak tightness9 5.6Valve reliability.10 5.7Durability of class 1 products.10 5.8Test methods10 5.8.1D
13、epth of water seal10 5.8.2Flushing tests.10 5.8.3Determination of water absorption 12 5.8.4Load test.13 5.8.5Leak tightness13 5.8.6Valve reliability.13 5.9Types of WC pans14 5.9.1Nominal flush volume14 5.9.2Flushing devices15 6Functional requirements and test methods for class 2 products.15 6.1Inlet
14、 valve15 6.2Backflow prevention15 6.3Marking of flushing cistern.15 6.4Warning pipe and overflow provision15 6.5Flush Volume15 6.5.1Full flush.15 6.5.2Reduced flush 15 6.6Flush rate16 6.7Physical endurance and leakage of flushing device (valve reliability and water/leak tightness) .16 6.8Chemical en
15、durance of flushing device (water/leak tightness)16 6.9Solids discharge and after-flush volume for maximum flush.16 6.10Paper discharge for reduced-flush volume.16 6.11Liquid contaminant dye retention16 6.12Wash of bowl16 6.13Depth of water seal16 6.14Static load of class 2 products.16 6.15Water abs
16、orption .17 6.16Durability of class 2 products.17 6.17Test methods17 6.17.1Inlet valve tests 17 6.17.2Warning pipe and overflow provisions17 EN 997:2003 (E) 3 6.17.3Flush volume and water trap seal tests.17 6.17.4Flush rate test 18 6.17.5Physical endurance and leakage test of flushing device19 6.17.
17、6Chemical endurance test of flushing device 20 6.17.7Solids discharge and after-flush volume for maximum flush volume test21 6.17.8Paper discharge for reduced-flush volume test.22 6.17.9Liquid contaminant dye retention test.22 6.17.10 Wash of bowl23 6.17.11 Summary of requirements for compatibility
18、testing of class 2 products24 7Dangerous substances .24 8Marking.25 9Evaluation of conformity.26 9.1General26 9.2Type testing27 9.2.1Initial type testing 27 9.2.2Further type testing.27 9.2.3Sample, testing and compliance criteria.27 9.3Factory Production Control (FPC) .28 9.3.1General28 9.3.2Testin
19、g equipment.28 9.3.3Raw materials and components.28 9.3.4Product testing and assessment .29 9.3.5Non-conforming products 29 Annex A (normative) Valve-type test flushing cistern.30 Annex B (normative) Test rig for pressure flush valve.32 Annex C (normative) Test rig for after-flush volume test .35 C.
20、1Test rig for after-flush volume test for independent WC pans (Figures C.1 and C.2) 35 C.2Test rig for after-flush volume test for one-piece WC pans, close-coupled suites and WC suites (Figure C.3)36 Annex D (normative) Basket method37 Annex E (normative) Preparation of test specimens.38 Annex F (no
21、rmative) Valveless-type test flushing cistern40 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive42 ZA.1Scope and relevant characteristics .42 ZA.2Procedure for attestation of conformity of WC pans and WC suites.44 ZA.2.1 Sys
22、tem of attestation of conformity 44 ZA.2.2 Declaration of conformity .44 ZA.3CE marking and labelling45 Bibliography46 EN 997:2003 (E) 4 Foreword This document (EN 997:2003) has been prepared by Technical Committee CEN /TC 163 “Sanitary appliances“, the secretariat of which is held by UNI. This Euro
23、pean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2004, and conflicting national standards shall be withdrawn at the latest by June 2005. This document supersedes EN 997:1999. This document has been pr
24、epared 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 relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. This standard is one of a serie
25、s of standards for sanitary appliances. Supporting standards are those for flushing devices and connecting dimensions. 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/CENELEC Inte
26、rnal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia,
27、Spain, Sweden, Switzerland and the United Kingdom. 1 Presently, a test method is under elaboration by CEN/TC 126 “Acoustic properties of building products and of buildings“ Foreword to amendment A1 This document (EN 997:2003/A1:2006) has been prepared by Technical Committee CEN/TC 163 “Sanitary appl
28、iances”, the secretariat of which is held by UNI. This Amendment to the European Standard EN 997:2003 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at t
29、he latest by September 2008. This document supports the unified approach for CE marking of sanitary appliances covered by harmonised European Standards elaborated by CEN/TC 163 under the Mandate M/110 “Sanitary appliances“. According to the CEN/CENELEC Internal Regulations, the national standards or
30、ganizations 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
31、Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 997:2003 (E) 5 1 Scope This standard specifies constructional and performance requirements together with test methods for close-coupled suites, one-piece and independent WC pans with integral trap used for personal hygiene manufac
32、tured from vitreous china or stainless steel. This standard does not apply to squatting toilettes, WC pans without integral trap, flushing cisterns as separate appliances. Flushing cisterns are covered by other standards and the reference to cisterns in this standard is related only to the definitio
33、n and requirements of flushing volume. 2 Normative references AS 1172-1:1993, Water closets of 6/3 L capacity - Pans BS 1212-1:1990, Float operated valves. Specification for piston type float operated valves (copper alloy body) (excluding floats) BS 1212-2:1990, Float operated valves. Specification
34、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. Specification for com
35、pact type float operated valves for WC flushing cisterns (including floats) NOTEThese normative references refer to products of class 2 only. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 pedestal WC pan floor-mounted WC pan that has an int
36、egral base 3.2 wall-hung WC pan WC pan cantilevered clear of the floor 3.3 wash-out WC pan WC pan in which excrement falls first into a shallow water filled bowl, before being removed by the flushing water The following referenced documents are indispensable for the application of this document. For
37、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ! “ “! EN 997:2003 (E) 6 3.4 wash-down WC pan WC pan in which excrement falls directly into the trap before being removed by the flushing water
38、 3.5 siphonic WC pan WC pan in which excrement is removed by siphonage induced by the flushing water 3.6 close-coupled suite combination of a WC pan and flushing cistern directly coupled into a functional unit 3.7 one-piece WC pan WC pan manufactured with an integral flushing cistern 3.8 independent
39、 WC pan WC pan suitable for the connection with a flushing cistern or a pressure flush valve 3.9 valve-type flushing cistern cistern with integral valve outlet device for storage and discharge of a defined volume of flushing water for removal of excrement from a WC pan 3.10 pressure flush valve valv
40、e directly connected to the water supply which delivers a pre-determined volume of flushing water for removal of excrement from a WC pan 3.11 valveless type flushing cistern cistern with outlet actuated by siphonic action which delivers a defined volume of flushing water for removal of excrement fro
41、m a WC pan 3.12 WC suite WC pan combined with either a flushing cistern with integral warning pipe connection or a device deemed to be a no less effective device and inlet/outlet devices, or a pressure flush valve, with WC and flushing device installed as a functioning unit 3.13 flush volume volume
42、of water discharged from the flushing device during a flush cycle 3.14 after-flush volume remaining flush water volume after the last of four test specimens have left the outlet of the bowl EN 997:2003 (E) 7 3.15 water trap water seal that prevents backflow of foul odour from a drain 3.16 fluid cont
43、aminant liquid to be removed by flushing action 3.17 residual fluid contaminant liquid waste left behind in the WC bowl after completion of a flush 3.18 solid test media media used to represent faecal matter 3.19 inlet valve valve that controls and shuts off the flow of water into a cistern, usually
44、 by an arm connected to a float 3.20 flushing device device fitted to a cistern to provide controlled measured volume(s) of water to a WC pan or suite for flushing NOTEA flushing device can be a siphon, drop valve, flap valve or pressurised cistern etc. For the purposes of this specification, the fl
45、ushing device includes the activator (i.e. handle, button, linkages etc.) and all seals, pistons, or other integral components. 3.21 dual-flush flushing cisterns with two modes of operation, one delivering a larger volume than the other, in which: ? the larger (full) flush option is not greater than
46、 6 l; and ? the smaller (reduced) flush option is not greater than two-thirds the volume of the larger flush EN 997:2003 (E) 8 3.22 warning level level of spillover of a vertically mounted warning pipe connection or the invert of a horizontally mounted warning pipe connection, or the level at which
47、an equally effective (warning) device would operate 3.23 short-term leak test leak test consisting of a 15 min wait after flushing then positioning paper designed to change colour when wet, under the flushing device for 10 min. A leak is defined as being visible discharge of water amounting to more
48、than three separate drops 3.24 long-term leak test long term leak test: Leak test consisting of a 2 h wait after flushing then positioning paper designed to change colour when wet, under the outlet for 15 min. A leak is defined as being visible discharge of water amounting to more than three separat
49、e drops NOTEDrawings are diagrammatic only. 4 Classification WC pans and suites are classified as described below: Class 1: WC pans and suites designed for use with and tested using a nominal flush volume of either 4 l, 5 l, 6 l, 7 l or 9 l. The requirements of class 1 are given in Clause 5. Class 2:WC suites designed for use with a pressure flushing valve or a flushing cistern incorporating some other flushing device, and tested as described in Clause 6, using a maximum flushing volume of 6 l, or a
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