1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 295-3:2012Vitrified clay pipe systems for drains and sewersPart 3: Test methodsBS EN 295-3:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementat
2、ion of EN 295-3:2012. It supersedes BS EN 295-3:1991, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e B / 5 0 5 , W a s t e w a t e r e n g i n e e r i n g .A list of organizations represented on this committee can be obtained on reques
3、t 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 Standards Institution 2012 ISBN 978 0 580 70648 6 ICS 23.040.50; 91.140.80; 93.030 Compliance with a British Standard cannot conf
4、er immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 295-3:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 295-3 Janua
5、ry 2012 ICS 93.030 Supersedes EN 295-3:1991English Version Vitrified clay pipe systems for drains and sewers - Part 3: Test methods Systmes de tuyaux et accessoires en grs vitrifi pour les collecteurs et branchements - Partie 3: Mthodes dessai Steinzeugrohrsysteme fr Abwasserleitungen und -kanle -Te
6、il 3: Prfverfahren This European Standard was approved by CEN on 19 November 2011. 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
7、 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 in any other language made by translation under the r
8、esponsibility 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, France, Germany
9、, 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 EUROPISCHES KOMITEE FR NO
10、RMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 295-3:2012: EBS EN 295-3:2012EN 295-3:2012 (E) 2 Contents Page Foreword 51 Scope 62 Normative references 63 Terms and d
11、efinitions .64 Symbols and abbreviations 75 Test for squareness of ends .85.1 Test of squareness of ends for pipes according to EN 295-1:2012 85.2 Test of squareness of ends for pipes according to EN 295-7:2012 86 Straightness test 97 Crushing strength test . 107.1 General . 107.1.1 Preconditioning
12、. 107.1.2 Testing machine 117.1.3 Loading 117.2 Bearers and bearing strips/facings. 117.2.1 Bearers . 117.2.2 Bearing strips/facings 127.3 Support system . 127.3.1 Flexible hose system (for use with any length of pipe, or pipe section not less than 300 mm in length) 127.3.2 Common hydraulic manifold
13、 system (for use with any length of pipe, or pipe section not less than 300 mm in length) . 147.3.3 Rigid systems (restricted to use with pipes or pipe sections from 300 mm to 1 100 mm nominal length) . 147.4 Test load application 147.4.1 Plain ended pipes . 147.4.2 Socketted pipes 147.4.3 Loading 1
14、47.5 Results and reporting . 147.5.1 Acceptance (proof) tests 147.5.2 Ultimate tests 157.5.3 Disputes . 157.5.4 Test records 158 Bending tensile test 158.1 Preconditioning . 158.2 Test procedure 159 Bending moment resistance (BMR) test. 179.1 General . 179.1.1 Preconditioning . 179.1.2 Testing machi
15、ne 179.1.3 Loading 179.1.4 Choice of test method 179.2 Four point loading test . 179.2.1 Test procedure 179.2.2 Testing by attributes 189.2.3 Testing by variables . 189.3 Three point loading test . 18BS EN 295-3:2012EN 295-3:2012 (E) 3 9.3.1 Test procedure . 189.3.2 Testing by attributes . 199.3.3 T
16、esting by variables 1910 Bond strength of adhesive . 2011 Tests for fatigue strength . 2011.1 Preconditioning . 2011.2 Test using a pipe or pipe section 2011.3 Test using sawn test specimens . 2112 Test for watertightness . 2212.1 General . 2212.2 Pipes and junctions . 2212.3 Fittings other than jun
17、ctions and terminal fittings 2213 Chemical resistance test for pipes and fittings 2214 Determination of hydraulic roughness . 2315 Abrasion resistance test . 2316 Airtightness test 2517 Tests for resistance to high pressure jetting . 2517.1 General . 2517.1.1 Water source 2517.1.2 Pressure measureme
18、nt . 2517.1.3 Test temperature . 2517.2 Moving jet test . 2617.3 Stationary jet test 2617.3.1 General . 2617.3.2 Apparatus . 2617.3.3 Test pieces . 2717.3.4 Procedure . 2718 Hardness test for polyurethane . 2818.1 Test pieces . 2818.2 Test method . 2819 Tests for material requirements of polypropyle
19、ne sleeve couplings 2819.1 Melt flow index . 2819.2 Tensile strength and elongation at break . 2919.3 Elevated temperature test. 2920 Performance test for polypropylene sleeve couplings . 2921 Mechanical test methods for joint assemblies . 2921.1 General . 2921.2 Deflection test 3021.3 Shear resista
20、nce test 3121.3.1 Loading arrangements for shear resistance 3121.3.2 Short-term shear resistance test . 3321.3.3 Long-term shear resistance test 3322 Continuity of invert test 3422.1 Test methods . 3422.2 Pipes and fittings with top marking . 3422.3 Pipes and fittings randomly jointed 3522.3.1 Sampl
21、ing and dimensions 3522.3.2 Calculations . 3522.3.3 Evaluation. 3623 Chemical resistance test for joint assemblies . 3623.1 Test solutions 3623.2 Procedure . 36BS EN 295-3:2012EN 295-3:2012 (E) 4 24 Thermal stability . 3724.1 Thermal cycling stability 3724.2 Long-term thermal stability . 3725 Creep
22、resistance of rigid fairing materials . 3825.1 Deformation . 3825.1.1 Test samples . 3825.1.2 Test apparatus 3825.1.3 Procedure 3825.2 Indentation . 3825.2.1 Test samples . 3825.2.2 Test apparatus 3925.2.3 Procedure 3926 Water tightness test for assembled components of manholes and inspection chambe
23、rs 3927 Compressive strength of jacking pipes . 3927.1 Test methods . 3927.1.1 Testing machine 3927.1.2 Selection and preparation of specimens . 3927.1.3 Test procedure 4127.1.4 Loading 4127.2 Calculation of compressive strength 4128 Water absorption 4128.1 Test specimen . 4128.2 Water absorption te
24、st . 42BS EN 295-3:2012EN 295-3:2012 (E) 5 Foreword This document (EN 295-3:2012) has been prepared by Technical Committee CEN/TC “Wastewater engineering”, 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 id
25、entical text or by endorsement, at the latest by July 2012, and conflicting national standards shall be withdrawn at the latest by January 2013. 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
26、responsible for identifying any or all such patent rights. This document supersedes EN 295-3:1991. The main changes with respect to the previous edition are listed below: a) test method for resistance to high pressure water jetting added; b) test method for water absorption added; c) test methods fr
27、om the previous parts 4, 5, 6 and 7 have been included in this European Standard; d) editorially revised. The standard series EN 295 “Vitrified clay pipe systems for drains and sewers“ consists of the following parts: Part 1: Requirements for pipes, fittings and joints; Part 2: Evaluation of conform
28、ity and sampling; Part 3: Test methods; Part 4: Requirements for adaptors, connectors and flexible couplings; Part 5: Requirements for perforated pipes and fittings; Part 6: Requirements for components of manholes and inspection chambers; Part 7: Requirements for pipes and joints for pipe jacking. T
29、his European Standard takes into account the requirements of EN 476. According to the CEN/CENELEC 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,
30、 Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 295-3:2012EN 295-3:2012 (E) 6 1 Scope This European
31、 Standard specifies requirements for testing of products manufactured from vitrified clay and other materials specified in the following standards: pipes, fittings and joints according to EN 295-1; adaptors, connectors and flexible couplings according to EN 295-4; perforated pipes and fittings accor
32、ding to EN 295-5; components of manholes and inspection chambers according to EN 295-6; pipes and joints for pipe jacking according to EN 295-7. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition ci
33、ted applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 295-1:2012, Vitrified clay pipe systems for drains and sewers Part 1: Requirements for pipes, fittings and joints EN 295-4:2012, Vitrified clay pipe systems for drains and sewers
34、 Part 4: Requirements for adaptors, connectors and flexible couplings EN 295-5:2012, Vitrified clay pipe systems for drains and sewers Part 5: Requirements for perforated pipes and fittings EN 295-6:2012, Vitrified clay pipe systems for drains and sewers Part 6: Requirements for components of manhol
35、es and inspection chambers EN 295-7:2012, Vitrified clay pipe systems for drains and sewers Part 7: Requirements for pipes and joints for pipe jacking EN ISO 527-2:1996, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including
36、 Corr 1:1994) EN ISO 868, Plastics and ebonite Determination of indentation hardness by means of a durometer (Shore hardness) (ISO 868) EN ISO 1133:2005, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (ISO 1133:2005) CEN/TR 14920:2005, J
37、etting resistance of drain and sewer pipes Moving jet test method 3 Terms and definitions For the purposes of this European Standard, the relevant terms and definitions specified in EN 295-1:2012, EN 295-4:2012, EN 295-5:2012, EN 295-6:2012 and EN 295-7:2012 apply. BS EN 295-3:2012EN 295-3:2012 (E)
38、7 4 Symbols and abbreviations Symbol Description A Outside diameter of the spigot moulding aMMeasurement from inside of pipe barrel to mid point of inside of socket fairing, in millimetres (continuity of invert test). apWidth of top bearer, in millimetres (crushing strength test and bending tensile
39、strength test). B Nominal length of external barrel of pipe unobstructed by socket shape and/or jointing configuration, in millimetres (crushing strength test). BtDistance from the outside surface of the spigot moulding to the internal surface of the pipe at one point at which the outside diameter o
40、f the spigot moulding (A) was measured, in millimetres (continuity of invert test). b Specimen width, in millimetres (fatigue strength test). CtDistance from the outside surface of the spigot moulding to the internal surface of the pipe at the opposite end to Btof the diameter measured as the outsid
41、e diameter of the spigot (A), in millimetres (continuity of invert test). c Concentration of solution, in moles per litre (chemical resistance tests). ciFactor for the upper (0,4) or lower (0,1) limit of the load (fatigue strength test). D Inside diameter of the socket moulding DN Nominal size - a n
42、umerical designation of size which is a convenient round number equal to or approximately equal to the internal diameter, in millimetres (bending moment resistance test). DSDeviation from straightness d1Barrel internal diameter, in millimetres (bending tensile strength test). EtDistance from the int
43、ernal surface of the socket moulding to the internal surface of the pipe at one point at which the inside diameter of the socket moulding (D) was measured, in millimetres (continuity of invert test). FiForce for upper and lower limit, in kilonewtons (fatigue strength test). FNCrushing strength, in k
44、ilonewtons per metre. FtDistance from the internal surface of the socket moulding to the internal surface of the pipe at the opposite end to Et, of the diameter measured as the inside of the socket moulding (D), in millimetres (continuity of invert test) GmMean annular gap, in millimetres (continuit
45、y of invert test). IRHD International Rubber Hardness Degrees of bearing strips/facings, in degrees IRHD (crushing strength test). ksHydraulic roughness in millimetres l4Centre line distance between supports, in millimetres (fatigue strength test). LNNominal length of the pipe LTTest length M Bendin
46、g moment resistance, in kilonewton metres (bending moment resistance test). MbBending moment, in Newton millimetres (bending tensile strength test). MpMean particle size, in millimetres (abrasion resistance test). BS EN 295-3:2012EN 295-3:2012 (E) 8 M1Test piece mass before treatment, in grammes (ch
47、emical resistance test). M2Test piece mass after treatment, in grammes (chemical resistance test). S Support span in metres s1Specimen wall thickness, in millimetres (bending tensile test). Smin, SmaxExtreme values of difference in invert, in millimetres (continuity of invert test). StStandard devia
48、tion, in millimetres (continuity of invert test). sfSpecimen wall thickness, in millimetres (fatigue strength test). t Time. U Degree of non-uniformity of particles (abrasion resistance test). W15Water addition in 15 minutes, in litres per square metre (watertightness test). Half the depth of a socket fairing, in millimetres (continuity of invert test). a Measurement of difference in invert levels, in millimetres (continuity of invert test). s Deviation from squareness in millimetres. Deformation of rigid fairing materials (creep resistance of rigid fairing materials test). i, jRes
