1、BSI Standards PublicationBS EN 997:2012WC pans and WC suites with integral trapBS EN 997:2012Incorporating corrigendum July 2012BS EN 997:2012+A1:2015BS EN 997:2012+A1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 997:2012+A1:2015. It supersedes BS EN 997
2、:2012, which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags.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 indicated by .The UK participation in its preparatio
3、n 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. Users are responsible for its correct applicati
4、on. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 87652 3ICS 91.140.70Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committe
5、e on 31 March 2012.Amendments/corrigenda issued since publicationDate Text affected31 August 2012 Implementation of CEN corrigendum July 2012: Replaced figure in 3.831 July 2015 Implementation of CEN amendment A1:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 997:2012+A1 June 2015 ICS 91.1
6、40.70 Supersedes EN 997:2012English 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 and includes Corrigendum 1 issued by
7、CEN on 18 July 2012 and Amendment 1 approved by CEN on 6 April 2015. 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 bibliographic
8、al references concerning such national standards may be obtained on application 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
9、of a CEN member into its own language and notified to the CEN-CENELEC Management 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, Former Yugoslav Republic of M
10、acedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION
11、EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 997:2012+A1:2015 EEN 997:2012+A1:2015 (E) 2 Contents Page Foreword 5 1 Scope 6 2 N
12、ormative references 6 3 Terms and definitions .6 4 Classification . 10 5 Functional requirements and test methods for class 1 products . 10 5.1 Depth of water seal . 10 5.2 Flushing requirements . 11 5.2.1 General . 11 5.2.2 Wash of bowl . 11 5.2.3 Flushing of toilet paper 11 5.2.4 Flushing of fifty
13、 small plastic balls . 11 5.2.5 Oversplashing . 11 5.2.6 After-flush volume 11 5.3 Water absorption 11 5.4 Static load 12 5.5 Additional requirements of flushing cisterns for close-coupled suites and one-piece WCs . 12 5.5.1 General . 12 5.5.2 Inlet valve of the flushing cistern 12 5.5.3 Supply pipi
14、ng 12 5.5.4 Flush volume(s) of the flushing cistern . 12 5.5.5 Leaktightness between flushing cistern and bowl 12 5.5.6 Outlet valve leaktightness . 12 5.5.7 Outlet valve reliability . 12 5.5.8 Overflow . 12 5.5.9 Safety margin dimension “c” 13 5.5.10 Safety margin dimension “a” 14 5.6 Durability .
15、14 5.7 Test methods . 14 5.7.1 Depth of water seal . 14 5.7.2 Flushing tests 14 5.7.3 Determination of water absorption . 17 5.7.4 Load test 18 5.7.5 Tests for flushing cisterns of close-coupled suites and one-piece WCs . 18 5.8 Types of independent WC pans, close-coupled suites and one-piece WCs 21
16、 5.8.1 Nominal flush volume 21 5.8.2 Flushing devices . 22 5.8.3 Verification of types . 22 6 Functional requirements and test methods for class 2 products . 22 6.1 Inlet valve . 22 6.2 Backflow prevention . 23 6.3 Marking of flushing cistern 23 6.4 Warning pipe and overflow provision. 23 6.5 Flush
17、volume . 23 6.5.1 Full flush 23 6.5.2 Reduced flush . 23 6.6 Flush rate . 23 6.7 Physical endurance and leakage of flushing device . 23 BS EN 997:2012+A1:2015EN 997:2012+A1:2015 (E) 2 Contents Page Foreword 5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Classification . 10 5 Funct
18、ional requirements and test methods for class 1 products . 10 5.1 Depth of water seal . 10 5.2 Flushing requirements . 11 5.2.1 General . 11 5.2.2 Wash of bowl . 11 5.2.3 Flushing of toilet paper 11 5.2.4 Flushing of fifty small plastic balls . 11 5.2.5 Oversplashing . 11 5.2.6 After-flush volume 11
19、 5.3 Water absorption 11 5.4 Static load 12 5.5 Additional requirements of flushing cisterns for close-coupled suites and one-piece WCs . 12 5.5.1 General . 12 5.5.2 Inlet valve of the flushing cistern 12 5.5.3 Supply piping 12 5.5.4 Flush volume(s) of the flushing cistern . 12 5.5.5 Leaktightness b
20、etween flushing cistern and bowl 12 5.5.6 Outlet valve leaktightness . 12 5.5.7 Outlet valve reliability . 12 5.5.8 Overflow . 12 5.5.9 Safety margin dimension “c” 13 5.5.10 Safety margin dimension “a” 14 5.6 Durability . 14 5.7 Test methods . 14 5.7.1 Depth of water seal . 14 5.7.2 Flushing tests 1
21、4 5.7.3 Determination of water absorption . 17 5.7.4 Load test 18 5.7.5 Tests for flushing cisterns of close-coupled suites and one-piece WCs . 18 5.8 Types of independent WC pans, close-coupled suites and one-piece WCs 21 5.8.1 Nominal flush volume 21 5.8.2 Flushing devices . 22 5.8.3 Verification
22、of types . 22 6 Functional requirements and test methods for class 2 products . 22 6.1 Inlet valve . 22 6.2 Backflow prevention . 23 6.3 Marking of flushing cistern 23 6.4 Warning pipe and overflow provision. 23 6.5 Flush volume . 23 6.5.1 Full flush 23 6.5.2 Reduced flush . 23 6.6 Flush rate . 23 6
23、.7 Physical endurance and leakage of flushing device . 23 EN 997:2012+A1:2015 (E) 3 6.8 Chemical endurance of flushing device 23 6.9 Solids discharge and after-flush volume for maximum flush 24 6.10 Paper discharge for reduced-flush volume 24 6.11 Liquid contaminant dye retention 24 6.12 Wash of bow
24、l . 24 6.13 Depth of water seal 24 6.14 Static load of class 2 products 24 6.15 Water absorption . 24 6.16 Durability of class 2 products 24 6.17 Test methods . 24 6.17.1 Inlet valve tests 24 6.17.2 Warning pipe and overflow provisions . 25 6.17.3 Flush volume and water trap seal tests 25 6.17.4 Flu
25、sh rate test 26 6.17.5 Physical endurance and leakage test of flushing device 27 6.17.6 Chemical endurance test of flushing device 28 6.17.7 Solids discharge and after-flush volume for maximum flush volume test . 28 6.17.8 Paper discharge for reduced-flush volume test . 30 6.17.9 Liquid contaminant
26、dye retention test 30 6.17.10 Wash of bowl . 31 6.17.11 Summary of requirements for compatibility testing of class 2 products 31 7 Dangerous substances . 32 8 Marking . 32 9 Assessment and verification of constancy of performance AVCP . 35 9.1 General . 35 9.2 Type testing . 35 9.2.1 General . 35 9.
27、2.2 Test samples, testing and compliance criteria 36 9.3 Factory production control (FPC) 37 9.3.1 General . 37 9.3.2 Equipment 38 9.3.3 Raw materials and components 38 9.3.4 Product testing and assessment . 38 9.3.5 Non-complying products 38 9.3.6 Corrective action . 38 Annex A (normative) Valve-ty
28、pe test flushing cistern 39 A.1 Valve-type test flushing cistern (Figures A.1 to A.3) . 39 A.2 Calibration of the valve-type test flushing cistern . 41 A.3 Procedure to test the flush rate of the test flushing cistern . 41 A.4 Procedure to test the flushing requirements of the WC 42 A.5 Procedure to
29、 measure the impact force of the test flushing cistern . 42 A.5.1 General . 42 A.5.2 Test device . 42 A.5.3 Procedure for calibrating the load cell unit and the measurement amplifier 44 A.5.4 Measurement procedure . 44 A.5.5 Calculation procedure for fixed time frame 0,35 s to 0,5 s . 45 A.5.6 Calcu
30、lation procedure for maximum impact force 45 Annex B (normative) Test rig for test pressure flush valve . 46 B.1 Test rig (Figure B.1) . 46 B.2 Procedure to measure the impact force 47 Annex C (normative) Test rig for after-flush volume test . 49 C.1 Test rig for after-flush volume test for independ
31、ent WC pans (Figures C.1 and C.2) 49 C.2 Test rig for after-flush volume test for one-piece WC pans, close-coupled suites and WC suites (Figure C.3) . 50 Annex D (normative) Basket method 51 BS EN 997:2012+A1:2015EN 997:2012+A1:2015 (E) 4 Annex E (normative) Preparation of test specimens 52 Annex F
32、(informative) Examples of flush pipes and outlet valves for test flushing cisterns. 54 Annex ZA (informative) !Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation“ 58 Bibliography . 67 BS EN 997:2012+A1:2015EN 997:2012+A1:2015 (E) 4 Annex E (normati
33、ve) Preparation of test specimens 52 Annex F (informative) Examples of flush pipes and outlet valves for test flushing cisterns. 54 Annex ZA (informative) !Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation“ 58 Bibliography . 67 EN 997:2012+A1:2015
34、 (E) 5 Foreword This document (EN 997:2012+A1:2015) 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 national standard, either by publication of an identical text or by endorsemen
35、t, at the latest by December 2015, and conflicting national standards shall be withdrawn at the latest by March 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying
36、 any or all such patent rights. This document includes Corrigendum 1 issued by CEN on 18 July 2012 and Amendment 1 approved by CEN on 4 April 2015. This document supersedes !EN 997:2012“. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! and “. The mo
37、difications of the related CEN Corrigendum have been implemented at the appropriate places in the text and are indicated by the tags null null. !This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential req
38、uirements of the EU Construction Products Regulation. For relationship with EU Construction Products Regulation, 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 d
39、evices and connecting dimensions. !The main changes introduced in EN 997:2012 with respect to the prior edition of this standard were the following:“ a) by reason of the actual market development, testing the flushing requirements has been specified. In this connection, requirements for test flushin
40、g cistern and its calibration have been adjusted to these conditions (introduction of the new parameter impact force); b) requirements and test methods for close-coupled suites and one-piece WCs have been extended and adjusted to those for flushing cisterns in accordance with EN 14055. NOTE Noise le
41、vel 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 Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Aus
42、tria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swed
43、en, 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”. BS EN 997:2012+A1:2015EN 997:2012+A1:2015 (E) 6 1 Scope This European Standard specifies constructional and performance requirem
44、ents together with test methods for close-coupled 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 cistern
45、s as separate appliances. In the case of independent 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
46、and one-piece WCs, this standard also specifies design, 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 installat
47、ions inside buildings. Before installation of WCs, 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 reference
48、s, only the edition cited applies. For undated references, 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,
49、Gravity drainage systems inside buildings Part 2: 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 valves. 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
