1、BSI Standards PublicationBS EN 1253-4:2016Gullies for buildingsPart 4: Access coversBS EN 1253-4:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1253-4:2016. Itsupersedes BS EN 1253-4:2000 which is withdrawn.The UK participation in its preparation was entru
2、sted to TechnicalCommittee B/505/11, Waste Fittings For Sanitary Appliances.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctap
3、plication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 90751 7ICS 91.140.80Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Comm
4、ittee on 31 May 2016.Amendments issued since publicationDate Text affectedBS EN 1253-4:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1253-4 April 2016 ICS 91.140.80 Supersedes EN 1253-4:1999English Version Gullies for buildings - Part 4: Access covers Avaloirs et siphons pour btiments - P
5、artie 4: Tampons/couvercles daccs Ablufe fr Gebude - Teil 4: Abdeckungen This European Standard was approved by CEN on 14 February 2016. 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
6、 standard without any alteration. Up-to-date lists and bibliographical 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
7、 in any other language made by translation under the responsibility 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, Czec
8、h 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, Sweden, Switzerland, Turkey andUnited Kingdom. EUR
9、OPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1253-4:2016 EBS
10、 EN 1253-4:2016EN 1253-4:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Classification . 4 5 Materials . 5 6 Design and construction . 5 6.1 General requirements . 5 6.2 Appearance 5 6.3 Clear opening of access covers for man entry . 5
11、 6.4 Edge protection for access covers of reinforced concrete 5 6.5 Tightness 6 6.5.1 General 6 6.5.2 Watertightness: Class Wt 6 6.5.3 Odourtightness: Class Ot. 6 6.5.4 Backflow tightness: Class Bt 6 6.5.5 Additional requirements 6 7 Test methods 6 7.1 Loading test . 6 7.2 Appearance and dimensions
12、. 6 7.3 Tightness 6 7.3.1 Watertightness . 6 7.3.2 Odourtightness 6 7.3.3 Backflow tightness 7 8 Marking . 7 9 Evaluation of conformity 7 BS EN 1253-4:2016EN 1253-4:2016 (E) 3 European foreword This document (EN 1253-4:2016) has been prepared by Technical Committee CEN/TC 165 “Waste water engineerin
13、g”, the secretariat of which is held by DIN. 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 October 2016, and conflicting national standards shall be withdrawn at the latest by October 2016. Atte
14、ntion 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 any or all such patent rights. This document supersedes EN 1253-4:1999. This is the fourth part in EN 1253, a series of s
15、tandards relating to different types of floor gullies, roof drains and access covers for drainage systems inside buildings. The EN 1253 series under the main title Gullies for buildings actually consists of the following parts: Part 1: Trapped floor gullies with a depth water seal of at least 50 mm;
16、 Part 2: Roof drains and floor gullies without trap; Part 3: Evaluation of conformity; Part 4: Access covers; Part 5: Gullies with light liquids closure. Since the latest versions of EN 1253-4 the most significant technical changes are the following: a) introduction of the new standards on trapped f
17、loor gullies with a depth of water seal of at least 50 mm (EN 1253-1), roof drains and floor gullies without trap (EN 1253-2) and on evaluation of conformity (EN 1253-3); b) amendment of items of marking as well as methods of marking. According to the CEN/CENELEC Internal Regulations, the national s
18、tandards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
19、, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1253-4:2016EN 1253-4:2016 (E) 4 1 Scope This European Standard classifies access covers according to their loading strength and specifies requirem
20、ents relating to their design, construction, marking, testing and evaluation of conformity. This European Standard classifies and specifies requirements for factory made access covers used for drainage systems inside buildings. This European Standard does not apply to access covers intended for exte
21、rnal use which are covered by EN 124 series. 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 references, the latest edition of
22、 the referenced document (including any amendments) applies. EN 124 (all parts), Gully tops and manhole tops for vehicular and pedestrian areas EN 476, General requirements for components used in drains and sewers EN 1253-1:2015, Gullies for buildings Part 1: Trapped floor gullies with a depth water
23、 seal of at least 50 mm EN 1253-2:2015, Gullies for buildings Part 2: Roof drains and floor gullies without trap EN 1253-3, Gullies for buildings Part 3: Evaluation of conformity 3 Terms and definitions For the purposes of this document, the terms and definitions given in the EN 124 series, EN 1253-
24、1:2015 and the following apply. 3.1 access cover assembly providing access to chamber, gully, shaft or pipe, capable of installation at floor level, generally consisting of a cover and frame 3.2 cover removable part of an access cover 3.3 frame fixed part of an access cover which receives and suppor
25、ts a cover 3.4 seating surface on which the cover rests in the frame 4 Classification Access covers are classified by loading strength when tested in accordance with 7.1, into the following classes: H 1,5, K 3, L 15, R 50, M 125, N 250, P 400. A guide for selecting the class of an access cover appro
26、priate to the place of installation is given below. The selection of the appropriate class is the responsibility of the specifier. BS EN 1253-4:2016EN 1253-4:2016 (E) 5 a) Class H 1,5: Areas where no load is expected. b) Class K 3: Areas without vehicular traffic, such as dwellings, commercial and s
27、ome public buildings. c) Class L 15: Areas with light vehicular traffic, such as in commercially used premises and public areas. d) Class R 50: Areas with vehicular traffic, such as in commercially used premises and factories. e) Class M 125: Areas with vehicular traffic, such as car parks, factorie
28、s and workshops. f) Class N 250: Heavy duty industrial areas subject to forklift traffic, such as food processing areas, chemical or process plants. g) Class P 400: Extra-heavy duty applications including food processing areas, chemical or process plants, where gullies are subjected to industrial fo
29、rklift trucks and/or where heavy vehicles are manoeuvring. Classes E 600 and F 900 gully tops conforming to the EN 124 series may be used for all areas subject to special stresses such as exhibition halls, market halls, factory sheds and aircraft hangars. The selection of the appropriate class is th
30、e responsibility of the designer. Where there is doubt of the class to be used, the next highest class should be selected. 5 Materials The materials used shall withstand the stresses likely to occur during installation and operation and shall comply with the requirements specified in Clause 6, such
31、that there shall be no deformation of the access cover or other damage likely to impair function or cause injury to health. 6 Design and construction 6.1 General requirements Access covers shall be designed and manufactured to ensure their function and the compatibility of seatings between frame and
32、 cover. Cushioning inserts may be used. When in position, it shall not be possible for covers to be dislodged from the frame, but they shall be easy to open. The upper surfaces of frame and cover shall be flush. 6.2 Appearance Access covers shall be free from sharp edges and imperfections (e.g. bubb
33、les, cracks or unevenness) which could impair functioning or cause injury to people. 6.3 Clear opening of access covers for man entry The clear opening of access covers designed for man entry shall comply with the provisions of EN 476 and the safety requirements in force at the place of installation
34、. 6.4 Edge protection for access covers of reinforced concrete For reinforced concrete access covers, the edges and contact surfaces of the seating between frame and cover shall be protected with hot-dip galvanized steel or cast iron or materials of equivalent properties. BS EN 1253-4:2016EN 1253-4:
35、2016 (E) 6 6.5 Tightness 6.5.1 General Where tightness is required it shall be tested in accordance with 7.3. There are three classes of tightness as follows: 6.5.2 Watertightness: Class Wt Watertight access covers shall prevent the ingress of surface water which does not exert hydrostatic pressure
36、when tested in accordance with 7.3.1. This can be achieved, for example, by providing a mechanical connection of frame and cover or by way of an appropriate design of these components. 6.5.3 Odourtightness: Class Ot Odourtight access covers shall prevent the escape of foul air. Odourtightness is ass
37、umed if the access cover is tight when tested in accordance with 7.3.2. 6.5.4 Backflow tightness: Class Bt Backflowtight access covers shall, in the event of surcharge in the drainage system, prevent backflow, at a pressure of up to 50 kPa (0,5 bar) of water from escaping from the access cover when
38、tested in accordance with 7.3.3; they shall also be watertight in accordance with 6.5.2 and odourtight in accordance with 6.5.3. 6.5.5 Additional requirements If a higher tightness is required, e.g. for toxic and/or explosive gases, the design and the test methods shall be agreed between the manufac
39、turer and user. If an additional inner cover is provided for sealing purposes, the outer cover shall be designed to restrict water ingress. Water that has penetrated through the top cover shall not collect on the inner cover, but shall be drained. 7 Test methods 7.1 Loading test Access covers shall
40、be subjected to a loading test as specified in EN 1253-1:2015, 5.6, or EN 1253-2:2015, 5.3, in order to establish their class. 7.2 Appearance and dimensions The requirements specified in 6.2, 6.3 and 6.4 shall be checked by visual examination. Dimensions shall be measured to an accuracy of 1 mm. 7.3
41、 Tightness 7.3.1 Watertightness The access cover shall be flooded with a (10 1) mm head of water for a period of (15 1) min. The test shall be deemed to have been passed if, during this period, no water has penetrated to the underside. 7.3.2 Odourtightness The access cover shall be subjected from be
42、low to a hydrostatic pressure of 500 Pa (5 mbar). The test shall be deemed to have been passed if, over a period of (15 1) min, no water has escaped at any point. BS EN 1253-4:2016EN 1253-4:2016 (E) 7 7.3.3 Backflow tightness A mechanical connection shall be made between frame and cover and a hydros
43、tatic pressure of 50 kPa (0,5 bar) applied from below. The test shall be deemed to have been passed if, over a period of (15 1) min, no water has escaped. 8 Marking Access covers and their components shall bear the following clear and durable markings, for example, cast on, by engraving, painting, s
44、tamping or labelling (including electronic recognition labelling) as indicated in Table 1: a) EN 1253-4; b) identification of loading and tightness class (e.g. M 125 Bt) or by frames used for different classes (e.g. L 15 M 125 Bt); c) name and/or mark of the manufacturer; d) identification of indepe
45、ndent certification body, where applicable; e) period of manufacture (coded or not). Table 1 Location of marking of access covers ItemdFrame Cover Packaging EN 1253-4 XaXaX Name and/or mark of manufacturer X X X Period of manufacture - - X Load class Xa,bXa,bX Tightness classcXaXaX aIf possible. bFo
46、r the classes H and K the marking is optional. cWhere applicable. dFurther marking may be added (e.g. for the application). The marking shall be visible, where possible, after the access cover is installed. If the application of the marking would be detrimental to the production and/or functioning o
47、f the product, the marking shall be included on the packaging. 9 Evaluation of conformity The evaluation of conformity shall be carried out as given in EN 1253-3. This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards an
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