SIST EN 295-3:2012

SLOVENSKI STANDARD
SIST EN 295-3:2012
01-marec-2012
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SIST EN 295-3:1996
SIST EN 295-3:1996/A1:2000
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Vitrified clay pipe systems for drains and sewers - Part 3: Test methods
Steinzeugrohrsysteme für Abwasserleitungen und -kanäle - Teil 3: Prüfverfahren
Systèmes de tuyaux et accessoires en grès pour les réseaux de branchement et
d’assainissement - Partie 3: Méthodes d'essai
Ta slovenski standard je istoveten z: EN 295-3:2012
ICS:
23.040.50 Cevi in fitingi iz drugih Pipes and fittings of other
materialov materials
91.140.80 Drenažni sistemi Drainage systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
SIST EN 295-3:2012 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 295-3:2012

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SIST EN 295-3:2012


EUROPEAN STANDARD
EN 295-3

NORME EUROPÉENNE

EUROPÄISCHE NORM
January 2012
ICS 93.030 Supersedes EN 295-3:1991
English Version
Vitrified clay pipe systems for drains and sewers - Part 3: Test
methods
Systèmes de tuyaux et accessoires en grès vitrifié pour les Steinzeugrohrsysteme für Abwasserleitungen und -kanäle -
collecteurs et branchements - Partie 3: Méthodes d'essai Teil 3: Prüfverfahren
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 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 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, Czech Republic, Denmark, 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 United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 295-3:2012: E
worldwide for CEN national Members.

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SIST EN 295-3:2012
EN 295-3:2012 (E)
Contents Page
Foreword .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .6
4 Symbols and abbreviations .7
5 Test for squareness of ends .8
5.1 Test of squareness of ends for pipes according to EN 295-1:2012 .8
5.2 Test of squareness of ends for pipes according to EN 295-7:2012 .8
6 Straightness test .9
7 Crushing strength test . 10
7.1 General . 10
7.1.1 Preconditioning . 10
7.1.2 Testing machine. 11
7.1.3 Loading . 11
7.2 Bearers and bearing strips/facings. 11
7.2.1 Bearers . 11
7.2.2 Bearing strips/facings . 12
7.3 Support system . 12
7.3.1 Flexible hose system (for use with any length of pipe, or pipe section not less than 300
mm in length) . 12
7.3.2 Common hydraulic manifold system (for use with any length of pipe, or pipe section not
less than 300 mm in length) . 14
7.3.3 Rigid systems (restricted to use with pipes or pipe sections from 300 mm to 1 100 mm
nominal length) . 14
7.4 Test load application . 14
7.4.1 Plain ended pipes . 14
7.4.2 Socketted pipes . 14
7.4.3 Loading . 14
7.5 Results and reporting . 14
7.5.1 Acceptance (proof) tests . 14
7.5.2 Ultimate tests . 15
7.5.3 Disputes . 15
7.5.4 Test records . 15
8 Bending tensile test . 15
8.1 Preconditioning . 15
8.2 Test procedure . 15
9 Bending moment resistance (BMR) test. 17
9.1 General . 17
9.1.1 Preconditioning . 17
9.1.2 Testing machine. 17
9.1.3 Loading . 17
9.1.4 Choice of test method . 17
9.2 Four point loading test . 17
9.2.1 Test procedure . 17
9.2.2 Testing by attributes . 18
9.2.3 Testing by variables . 18
9.3 Three point loading test . 18
2

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SIST EN 295-3:2012
EN 295-3:2012 (E)
9.3.1 Test procedure . 18
9.3.2 Testing by attributes . 19
9.3.3 Testing by variables . 19
10 Bond strength of adhesive . 20
11 Tests for fatigue strength . 20
11.1 Preconditioning . 20
11.2 Test using a pipe or pipe section . 20
11.3 Test using sawn test specimens . 21
12 Test for watertightness . 22
12.1 General . 22
12.2 Pipes and junctions . 22
12.3 Fittings other than junctions and terminal fittings . 22
13 Chemical resistance test for pipes and fittings. 22
14 Determination of hydraulic roughness . 23
15 Abrasion resistance test . 23
16 Airtightness test . 25
17 Tests for resistance to high pressure jetting . 25
17.1 General . 25
17.1.1 Water source . 25
17.1.2 Pressure measurement . 25
17.1.3 Test temperature . 25
17.2 Moving jet test . 26
17.3 Stationary jet test . 26
17.3.1 General . 26
17.3.2 Apparatus . 26
17.3.3 Test pieces . 27
17.3.4 Procedure . 27
18 Hardness test for polyurethane . 28
18.1 Test pieces . 28
18.2 Test method . 28
19 Tests for material requirements of polypropylene sleeve couplings . 28
19.1 Melt flow index . 28
19.2 Tensile strength and elongation at break . 29
19.3 Elevated temperature test. 29
20 Performance test for polypropylene sleeve couplings . 29
21 Mechanical test methods for joint assemblies . 29
21.1 General . 29
21.2 Deflection test . 30
21.3 Shear resistance test . 31
21.3.1 Loading arrangements for shear resistance . 31
21.3.2 Short-term shear resistance test . 33
21.3.3 Long-term shear resistance test . 33
22 Continuity of invert test . 34
22.1 Test methods . 34
22.2 Pipes and fittings with top marking . 34
22.3 Pipes and fittings randomly jointed . 35
22.3.1 Sampling and dimensions . 35
22.3.2 Calculations . 35
22.3.3 Evaluation. 36
23 Chemical resistance test for joint assemblies . 36
23.1 Test solutions . 36
23.2 Procedure . 36
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SIST EN 295-3:2012
EN 295-3:2012 (E)
24 Thermal stability . 37
24.1 Thermal cycling stability . 37
24.2 Long-term thermal stability . 37
25 Creep resistance of rigid fairing materials . 38
25.1 Deformation . 38
25.1.1 Test samples . 38
25.1.2 Test apparatus . 38
25.1.3 Procedure . 38
25.2 Indentation . 38
25.2.1 Test samples . 38
25.2.2 Test apparatus . 39
25.2.3 Procedure . 39
26 Water tightness test for assembled components of manholes and inspection chambers . 39
27 Compressive strength of jacking pipes . 39
27.1 Test methods . 39
27.1.1 Testing machine. 39
27.1.2 Selection and preparation of specimens . 39
27.1.3 Test procedure . 41
27.1.4 Loading . 41
27.2 Calculation of compressive strength. 41
28 Water absorption . 41
28.1 Test specimen . 41
28.2 Water absorption test . 42


4

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SIST EN 295-3:2012
EN 295-3:2012 (E)
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 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 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 from 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 conformity 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.
This 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, 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.
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SIST EN 295-3:2012
EN 295-3:2012 (E)
1 Scope
This European 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 according 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 cited 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 — 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
manholes 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 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, Jetting 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.
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SIST EN 295-3:2012
EN 295-3:2012 (E)
4 Symbols and abbreviations
Symbol Description
A Outside diameter of the spigot moulding
a Measurement from inside of pipe barrel to mid point of inside of socket fairing, in millimetres
M
(continuity of invert test).
a Width of top bearer, in millimetres (crushing strength test and bending tensile strength test).
p
B Nominal length of external barrel of pipe unobstructed by socket shape and/or jointing
configuration, in millimetres (crushing strength test).
B Distance from the outside surface of the spigot moulding to the internal surface of the pipe at
t
one point at which the outside diameter of the spigot moulding (A) was measured, in millimetres
(continuity of invert test).
b Specimen width, in millimetres (fatigue strength test).
C Distance from the outside surface of the spigot moulding to the internal surface of the pipe at the
t
opposite end to B of the diameter measured as the outside diameter of the spigot (A), in
t
millimetres (continuity of invert test).
c Concentration of solution, in moles per litre (chemical resistance tests).
c Factor for the upper (0,4) or lower (0,1) limit of the load (fatigue strength test).
i
D
Inside diameter of the socket moulding
DN Nominal size - a numerical designation of size which is a convenient round number equal to or
approximately equal to the internal diameter, in millimetres (bending moment resistance test).
D Deviation from straightness
S
d
Barrel internal diameter, in millimetres (bending tensile strength test).
1
E Distance from the internal surface of the socket moulding to the internal surface of the pipe at
t
one point at which the inside diameter of the socket moulding (D) was measured, in millimetres
(continuity of invert test).
F Force for upper and lower limit, in kilonewtons (fatigue strength test).
i
F Crushing strength, in kilonewtons per metre.
N
F Distance from the internal surface of the socket moulding to the internal surface of the pipe at
t
the opposite end to E, of the diameter measured as the inside of the socket moulding (D), in
t
millimetres (continuity of invert test)
G Mean annular gap, in millimetres (continuity of invert test).
m
IRHD International Rubber Hardness Degrees of bearing strips/facings, in degrees IRHD (crushing
strength test).
k Hydraulic roughness in millimetres
s
l Centre line distance between supports, in millimetres (fatigue strength test).
4
L Nominal length of the pipe
N
L Test length
T
M Bending moment resistance, in kilonewton metres (bending moment resistance test).
M Bending moment, in Newton millimetres (bending tensile strength test).
b
M Mean particle size, in millimetres (abrasion resistance test).
p
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SIST EN 295-3:2012
EN 295-3:2012 (E)
M Test piece mass before treatment, in grammes (chemical resistance test).
1
M Test piece mass after treatment, in grammes (chemical resistance test).
2
S Support span in metres
s Specimen wall thickness, in millimetres (bending tensile test).
1
S S Extreme values of difference in invert, in millimetres (continuity of invert test).
min, max
S Standard deviation, in millimetres (continuity of invert test).
t
s Specimen wall thickness, in millimetres (fatigue strength test).
f
t
Time.
U
Degree of non-uniformity of particles (abrasion resistance test).
W
Water addition in 15 minutes, in litres per square metre (watertightness test).
15
Half the depth of a socket fairing, in millimetres (continuity of invert test).
β
∆ 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).
ε
i j 2
σ σ Restoring stress at t = 10 and t = 10 , in N/mm (polyurethane relaxation tests).
i, j
Bending tensile strength, in Newtons per squa
...