1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12095 : 1997 BS 278
2、2 : Part 11 : Method 1111Q : 1997 The European Standard EN 12095 : 1997 has the status of a British Standard ICS 21.060.70; 91.060.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Plastics piping systems Brackets for rainwater piping systems Test method for bracket strengthB
3、S EN 12095 : 1997 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 June 1997 BSI 1997 The following BSI references relate to the work on this standard:
4、 Committee reference PRI/61 Draft for comment 95/125471 DC ISBN 0 580 27475 6 Amendments issued since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/61, Plastics piping systems
5、 and components, upon which the following bodies were represented: British Gas plc British Plastics Federation British Plumbing Fittings Manufacturers Association British Valve and Actuator Manufacturers Association Chartered Institution of Water and Environment Management Department of the Environm
6、ent (British Board of Agre ment) Department of the Environment (Building Research Establishment) Department of Transport Electricity Association Health and Safety Executive Institute of Building Control Institute of Materials Institution of Civil Engineers Institution of Gas Engineers National Assoc
7、iation of Plumbing, Heating and Mechanical Services Contractors Pipeline Industries Guild Plastics Land Drainage Manufacturers Association Society of British Gas Industries Society of British Water Industries Water Companies Association Water Services Association of England and Wales The following b
8、odies were also represented in the drafting of this standard, through subcomittees and panels: British Adhesives and Sealants Association ERA Technology Ltd. Engineering Equipment and Materials Users Association RAPRA Technology Ltd.BS EN 12095 : 1997 BSI 1997 i Contents Page Committees responsible
9、Inside front cover National foreword ii Foreword 2 Method 1 Scope 3 2 Principle 3 3 Apparatus 3 4 Test pieces 3 5 Conditioning 3 6 Procedure 3 7 Test report 3 Figures 1 Typical arrangement 4 2 Residual determination of the bracket 4ii BSI 1997 BS EN 12095 : 1997 National foreword This British Standa
10、rd has been prepared by Technical Committee PRI/61, and is the English language version of EN 12095 : 1997 Plastics piping systems Brackets for rainwater piping systems Test method for bracket strength, published by the European Committee for Standardization (CEN). It is incorporated into BS 2782 Me
11、thods of testing plastics : Part 11: Thermoplastics pipes, fittings and valves, as Method 1111Q : 1997, for association with related test methods for plastics materials and plastics piping components. This test method has been prepared for reference by other standards under preparation by CEN for sp
12、ecification of plastics piping and ducting systems and components. It has been implemented to enable experience of the method to be gained and for use in other fresh applications. It is also for use for the revision or amendment of other national standards as practicable, but it should not be presum
13、ed to apply to any existing standard or specification until that standard/specification has been amended or revised to make reference to this method and adjust any requirements as appropriate. This British Standard is published under the direction of the Sector Board for Materials and Chemicals whos
14、e Technical Committee PRI/61 has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments
15、and promulgate them in the UK. NOTE. International and European Standards, as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. Warning note. This British Standard, which is identical with EN 12095 : 1997, does not necessarily detail all th
16、e precautions necessary to meet the requirements of the Health and Safety at Work, etc. Act 1974. Attention should be paid to any appropriate safety precautions and the method should be operated only by trained personnel. Compliance with a British Standard does not of itself confer immunity from leg
17、al obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Centra
18、l Secretariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members Ref. No. EN 12095 : 1997 E EUROPEAN STANDARD EN 12095 NORME EUROPE ENNE EUROPA ISCHE NORM February 1997 ICS 21.060.70; 23.040.90; 91.140.80 Descriptors: Plastic tubes, rainwater pipes, fastenings, pipe clips, m
19、etals, plastics, tests, mechanical strength, measurements, deformation English version Plastics piping systems Brackets for rainwater piping systems Test method for bracket strength Syste mes de canalisation en plastique Colliers pour syste mes de descente pluviale Me thode dessai pour la re sistanc
20、e du collier Kunststoff-Rohrleitungssysteme Schellen fu r Regenwasser-Rohrleitungssysteme Pru fverfahren der Schellen-Festigkeit This European Standard was approved by CEN on 1996-12-27. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givi
21、ng this European Standard the status of a national standard without any alteration. Up-tp-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 versi
22、ons (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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, D
23、enmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 12095 : 1997 BSI 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 155, Plastics piping systems and
24、 ducting systems, the secretariat of which is held by NNI. 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 1997, and conflicting national standards shall be withdrawn at the latest by Augus
25、t 1997. This European Standard has been prepared in liasion with CEN/TC 128, Roof covering products for discontinuous laying. The material-dependent parameters and/or performance requirements are incorporated in the System Standard(s) concerned. This standard is one of a series of standards on test
26、methods which support System Standards for plastics piping systems and ducting systems. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, German
27、y, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 3 EN 12095 : 1997 BSI 1997 1 Scope This standard specifies a method for testing the strength of fixing brackets intended to support plastics rainwater downpipe system
28、s used externally on buildings. It is applicable to both metal and plastics brackets, and determines the amount of residual deformation after removal of a specified test load. 2 Principle A fixing bracket is fitted in accordance with the manufacturers instructions to a vertical supporting surface in
29、 such a manner that it acts as an anchor bracket for vertical pipework. A coaxial vertical load is applied and the residual deflection recorded after removal of the load. NOTE. It is assumed that the following test parameters are set by the standard making reference to this standard: a) the test loa
30、d (see 3.3 and 6.3); b) the number of test pieces (see 4.2); c) conditioning requirements, if other than 16 h at (23 5) C (see clause 5). 3 Apparatus 3.1 A rainwater downpipe socket, with a 500 mm 0 +10 length of the same sized pipe, which can be inserted into the socket. 3.2 An intermediate guide b
31、racket, sized to accept the pipe (3.1) and allow it to move longitudinally. 3.3 A means of applying the required test load (see 6.3) to the socket (3.1) when the socket is supported by the bracket under test. 3.4 A vertical wall or frame, capable of supporting the test apparatus and load (see clause
32、 6 and figure 1). 3.5 Means for measuring the residual vertical deformation relative to a horizontal datum plane (see 6.4), to 0,5 mm (see figures 1 and 2). 4 Test pieces 4.1 The test piece shall consist of a bracket fitted to the socket (3.1) in such a way that the bracket acts as an anchor prevent
33、ing any relative downward movement of the socket. 4.2 The number of test pieces shall be as specified in the referring standard. 5 Conditioning Unless otherwise specified in the referring standard, the test piece shall be conditioned for at least 16 h at (23 5) C immediately prior to testing in acco
34、rdance with clause 6. 6 Procedure 6.1 Conduct the following procedures in an ambient temperature of (23 5) C. 6.2 Fix the test piece to a vertical supporting wall or frame, in accordance with the manufacturers instructions. Fit the socket (3.1) to the test piece bracket in such a way that the bracke
35、t acts as an anchor fully supporting the socket with the socket axis vertical (see figure 1). Fit the pipe (3.1) into the socket and attach the intermediate bracket (3.2) to the pipe and supporting wall 400 mm above the socket. Determine the location of position 1 (H 1 ) (see figures 1 and 2). 6.3 A
36、pply the test load specified in the referring standard to the socket so that the load produces the appropriate coaxial downward force on the socket for a period of (30 5) min and then remove the load. 6.4 24 h after removal of the load, measure and record the residual vertical deformation as the dis
37、tance, h r , between the position 1 and position 2 shown in figure 2, using the set square or equivalent (3.5) as the datum plane. 7 Test report The test report shall include the following information: a) the reference to this standard and to the referring standard; b) complete identification of the
38、 bracket, including material, size, type and batch from which the bracket was taken; c) the load applied; d) the residual vertical deformation, h r ,i n millimetres; e) any factors which may have affected the results, such as any incidents or any operating details not specified in this standard; f)
39、the date of test.Page 4 EN 12095 : 1997 BSI 1997 A Load B Pipe C Guide bracket (3.2) D Vertical wall or frame E Engineers set square or equivalent F Pipe bracket under test G Socket (3.1) H 1 Position 1 Figure 1. Typical arrangement D Vertical wall or frame H 1 Position 1 H 2 Position 2 (on pipe cen
40、treline) after unloading h r Residual deformation J Top of bracket before unloading K Top of bracket after unloading Figure 2. Residual deformation of the bracketblankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
41、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK vie
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