1、March 2012 Translation by DIN-Sprachendienst.English price group 17No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、93.030!$zV b) a test method for water absorption has been added; c) test methods for all vitrified clay products covered by the DIN EN 295 series have been included; d) the standard has been editorially revised and brought into line with the current rules for drafting publications. Previous editions
3、 DIN 1203 to DIN 1206: 1926-01 DIN 1230: 1938-07, 1941-04, 1943-09 DIN 1230-2: 1958-02, 1962-07, 1972-01, 1979-09, 1986-01 DIN 1230-7: 1983-08 DIN 1230-202: 1991-03 DIN EN 295-3: 1991-11, 1999-02 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 295-3 January 2012 ICS 93.030 Supersedes EN 295-3:1
4、991English 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 -Teil 3: Prfverfahren This European Standar
5、d 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 bibliographical references concerning s
6、uch 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 of a CEN member into its o
7、wn 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, Greece, Hungary, Iceland, Ireland, Ita
8、ly, 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 NORMUNG Management Centre: Avenue Marnix 1
9、7, 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: EEN 295-3:2012 (E) 2 Contents Page Foreword 51 Scope 62 Normative references 63 Terms and definitions .64 Symbols and abbreviations 75 Test for squ
10、areness 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 . 107.1.2 Testing machine 117.1.3 Loading 117.2 Bearers
11、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 system (for use with any length of pipe, or pipe sectio
12、n 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 147.5 Results and reporting . 147.5.1 Acceptance (proof)
13、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 machine 179.1.3 Loading 179.1.4 Choice of test method 179.2 F
14、our 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 . 18DIN EN 295-3:2012-03 EN 295-3:2012 (E) 3 9.3.1 Test procedure . 189.3.2 Testing by attributes . 199.3.3 Testing by variables 1910 Bond strength of adhesive
15、. 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 junctions and terminal fittings 2213 Chemical resistan
16、ce 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 measurement . 2517.1.3 Test temperature . 2517.2 Moving jet
17、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 polypropylene sleeve couplings 2819.1 Melt flow index . 2819.2
18、 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 resistance test 3121.3.1 Loading arrangements for shear re
19、sistance 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 Sampling and dimensions 3522.3.2 Calculations . 3522.3.3
20、 Evaluation. 3623 Chemical resistance test for joint assemblies . 3623.1 Test solutions 3623.2 Procedure . 36DIN EN 295-3:2012-03 EN 295-3:2012 (E) 4 24 Thermal stability . 3724.1 Thermal cycling stability 3724.2 Long-term thermal stability . 3725 Creep resistance of rigid fairing materials . 3825.1
21、 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 chambers 3927 Compressive strength of jacking pipes
22、. 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 test . 42DIN EN 295-3:2012-03 EN 295-3:2012 (E)
23、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 identical text or by endorsement, at the la
24、test 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 responsible for identifying any or all su
25、ch 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 from the previous parts 4, 5, 6 and 7 have
26、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 conformity and sampling; Part 3: Test methods; P
27、art 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. This European Standard takes into account
28、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, Estonia, Finland, France, Germany, Greec
29、e, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 295-3:2012-03 EN 295-3:2012 (E) 6 1 Scope This European Standard specifies requirements for
30、 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 according to EN 295-5; components of manh
31、oles 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 cited applies. For undated references,
32、 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 Part 4: Requirements for adaptors,
33、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 manholes and inspection chambers EN 295-7:
34、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 Corr 1:1994) EN ISO 868, Plastics a
35、nd 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, Jetting resistance of drain and sewer
36、 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. DIN EN 295-3:2012-03 EN 295-3:2012 (E) 7 4 Symbols and abbreviations S
37、ymbol 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 strength test). B Nominal lengt
38、h 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 of the spigot moulding (A) was m
39、easured, 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 outside diameter of the spigot (A), i
40、n 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 numerical designation of size wh
41、ich 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 internal surface of the socket mou
42、lding 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 kilonewtons per metre. FtDistanc
43、e 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 (continuity of invert test). IRHD Interna
44、tional 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 Bending moment resistance, in kilonew
45、ton metres (bending moment resistance test). MbBending moment, in Newton millimetres (bending tensile strength test). MpMean particle size, in millimetres (abrasion resistance test). DIN EN 295-3:2012-03 EN 295-3:2012 (E) 8 M1Test piece mass before treatment, in grammes (chemical resistance test). M
46、2Test 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 deviation, in millimetres (cont
47、inuity 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
48、 (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, jRestoring stress at t = 10iand t = 10j, in N/mm2(polyurethane relaxation tests). bzBending tensile strength, in Newtons per square millimetre (bending tensile strength test). 5 Test for squareness of ends 5.1 Test of squareness of ends for pipes according to EN 295-1:2012 A whole pipe shall be placed horizontally on two suppo
