SIST EN 14758-1:2006+A1:2009
(Main)Plastics piping systems for non-pressure underground drainage and sewerage - With mineral modifiers (PP-MD) - Part 1: Specifications for pipes, fittings and the system
Plastics piping systems for non-pressure underground drainage and sewerage - With mineral modifiers (PP-MD) - Part 1: Specifications for pipes, fittings and the system
This European Standard specifies the requirements for solid-wall pipes, fittings and the system of piping systems made from mineral modified polypropylene materials (PP-MD) in the field of non-pressure underground drainage and sewerage outside the building structure (application area code "U"), and non-pressure underground drainage and sewerage for both buried in ground within the building structure (application area code "D") and outside the building structure.
This is reflected in the marking of products by "U" and "UD".
It also specifies the test parameters for the test methods referred to in this European Standard.
This European Standard covers a range of nominal sizes, a range of pipe series/stiffness classes and gives recommendations concerning colours.
NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selection from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.
In conjunction with Part 2 and Part 3 of EN 14758 (see Foreword) it is applicable to PP-MD pipes and fittings, their elastomeric sealing ring joints and to joints with components of other plastics and non-plastics materials intended to be used for buried piping systems for non-pressure underground drainage and sewerage.
This European Standard is applicable to PP-MD pipes with or without an integral socket.
NOTE 2 The fittings can be manufactured by injection-moulding or be fabricated from pipes and/or mouldings.
NOTE 3 Requirements and limiting values for application area code "D" are given in Table 4, Table 7 and Table 13.
NOTE 4 Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex B can be used with pipes and fittings conforming to this European Standard, when they conform to the requirements for joint dimensions given in Clause 6 and to the requirements of Table 13.
Kunststoff-Rohrleitungssysteme für erdverlegte Abwasserkanäle und -leitungen - Polypropylen mit mineralischen Additiven (PP-MD) - Teil 1: Anforderungen an Rohre, Formstücke und das Rohrleitungssystem
Systèmes de canalisations en plastique pour les branchements et les collecteurs d'assainissement enterrés sans pression - Polypropylène avec modificateurs minéraux (PP-MD) - Partie 1 : Spécifications pour les tubes, les raccords et le système
La présente Norme européenne spécifie les exigences pour les tubes, les raccords et le système de canalisations
à paroi compacte, fabriqués à partir de polypropylène avec modificateurs minéraux (PP-MD) et destinés à être utilisés
pour les branchements et les collecteurs d’assainissement enterrés sans pression à l’extérieur de la structure
du bâtiment (code de zone d’application «U»), et pour les branchements et les collecteurs d’assainissement enterrés
sans pression aussi bien à l’intérieur de la structure du bâtiment (code de zone d’application «D») qu’à l’extérieur
de celle-ci.
Ces informations sont précisées dans le marquage des produits par les lettres «U» et «UD».
Elle spécifie également les paramètres d’essai pour les méthodes d’essai référencées dans cette Norme européenne.
La présente Norme européenne couvre une gamme de dimensions nominales, une gamme de séries
de tubes/classes de rigidité et donne des recommandations concernant les couleurs.
NOTE 1 Il est de la responsabilité de l’acheteur ou du prescripteur d’effectuer les choix appropriés à partir de ces données,
en tenant compte des exigences particulières et de toute réglementation nationale applicable ainsi que des pratiques ou codes
de pose.
En relation avec la Partie 2 et la Partie 3 de l’EN 14758 (voir l’Avant-propos), elle s’applique aux tubes et aux raccords
en PP-MD, à leurs assemblages à bague d’étanchéité en élastomère et aux assemblages avec des composants en
matières plastiques et non plastiques différentes destinés à être utilisés dans les systèmes de canalisations enterrés
pour les branchements et l’assainissement sans pression.
La présente Norme européenne est applicable aux tubes PP-MD avec et sans emboîtures.
NOTE 2 Les raccords peuvent être fabriqués par moulage par injection ou être façonnés à partir de tubes et/ou de pièces
moulées.
Cevni sistemi iz polimernih materialov za odvodnjavanje in kanalizacijo, ki delujejo po težnostnem principu - Polipropilen z mineralnimi modifikatorji (PP-MD) - 1. del: Specifikacije za cevi, fitinge in cevni sistem
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cevni sistemi iz polimernih materialov za odvodnjavanje in kanalizacijo, ki delujejo po težnostnem principu - Polipropilen z mineralnimi modifikatorji (PP-MD) - 1. del: Specifikacije za cevi, fitinge in cevni sistemKunststoff-Rohrleitungssysteme für erdverlegte Abwasserkanäle und -leitungen - Polypropylen mit mineralischen Additiven (PP-MD) - Teil 1: Anforderungen an Rohre, Formstücke und das RohrleitungssystemSystèmes de canalisations en plastique pour les branchements et les collecteurs d'assainissement enterrés sans pression - Polypropylène avec modificateurs minéraux (PP-MD) - Partie 1 : Spécifications pour les tubes, les raccords et le systèmePlastics piping systems for non-pressure underground drainage and sewerage - With mineral modifiers (PP-MD) - Part 1: Specifications for pipes, fittings and the system93.030Zunanji sistemi za odpadno vodoExternal sewage systems23.040.20Cevi iz polimernih materialovPlastics pipesICS:Ta slovenski standard je istoveten z:EN 14758-1:2005+A1:2009SIST EN 14758-1:2006+A1:2009en,fr,de01-junij-2009SIST EN 14758-1:2006+A1:2009SLOVENSKI
STANDARD
SIST EN 14758-1:2006+A1:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14758-1:2005+A1
February 2009 ICS 93.030 Supersedes EN 14758-1:2005English Version
Plastics piping systems for non-pressure underground drainage and sewerage – Polypropylene with mineral modifiers (PP-MD) -Part 1: Specifications for pipes, fittings and the system
Systèmes de canalisations en plastique pour les branchements et les collecteurs d'assainissement enterrés sans pression - Polypropylène avec modificateurs minéraux (PP-MD) - Partie 1 : Spécifications pour les tubes, les raccords et le système
Kunststoff-Rohrleitungssysteme für erdverlegte Abwasserkanäle und -leitungen - Polypropylen mit mineralischen Additiven (PP-MD) - Teil 1: Anforderungen an Rohre, Formstücke und das Rohrleitungssystem This European Standard was approved by CEN on 24 November 2005 and includes Amendment 1 approved by CEN on 18 December 2008.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14758-1:2005+A1:2009: ESIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 2 Contents Page Foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms, definitions, symbols and abbreviations . 6 3.1 Terms and definitions . 6 3.2 Symbols . 9 3.3 Abbreviations . 9 4 Material . 10 4.1 PP-MD material . 10 4.2 Reprocessable and recyclable material . 10 4.3 Melt mass-flow rate . 10 4.4 Mineral modifiers . 10 4.5 Durability . 11 4.6 Sealing ring retaining means . 13 5 General characteristics . 13 5.1 Appearance . 13 5.2 Colour . 13 6 Geometrical characteristics . 13 6.1 General . 13 6.2 Dimensions of pipes . 13 6.3 Ring stiffness classes . 17 6.4 Dimensions of fittings . 17 6.5 Dimensions of sockets and spigots. 18 6.6 Types of fittings . 22 7 Mechanical characteristics of pipes . 24 7.1 Mechanical characteristics of pipes . 24 7.2 Mechanical characteristics of fittings . 26 8 Physical characteristics . 27 8.1 Physical characteristics of pipes . 27 8.2 Physical characteristics of fittings . 27 9 Performance requirements . 28 10 Sealing rings . 29 11 Marking. 29 11.1 General . 29 11.2 Minimum required marking of pipes . 29 11.3 Minimum required marking of fittings . 30 11.4 Additional marking . 31 Annex A (informative)
General characteristics of PP-MD pipes and fittings . 32 A.1 General . 32 A.2 Material characteristics . 32 A.3 Ring stiffness . 32 SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 3 A.4 Chemical resistance . 33 A.5 Abrasion resistance . 33 A.6 Hydraulic roughness . 33 A.7 Diametric deflection . 33 Annex B (informative)
Standards for pipes and fittings of a material other than PP-MD . 34 Bibliography . 35
SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 4 Foreword This document (EN 14758-1:2005+A1:2009) has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems”, the secretariat of which is held by NEN. 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 2009, and conflicting national standards shall be withdrawn at the latest by August 2009. This document includes Amendment 1, approved by CEN on 2008-12-18. This document supersedes EN 14758-1:2005. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". This European Standard is a part of a system standard for plastics piping systems of a particular material for a specified application.
There are a number of such system standards. They are supported by separate standards on test methods to which references are made throughout the system standard. The system standards are consistent with general standards on functional requirements and on recommended practice for installation. EN 14758 consists of the following parts under the general title Plastics piping systems for non-pressure underground drainage and sewerage — Polypropylene with mineral modifiers (PP-MD) Part 1:
Specifications for pipes, fittings and the system (this document) Part 2:
Guidance for the assessment of conformity (intended to be published as CEN/Technical Specification) Part 3:
Guidance for installation (intended to be published as CEN/Technical Specification). 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, 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 and United Kingdom. SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 5 1 Scope This European Standard specifies the requirements for solid-wall pipes, fittings and the system of piping systems made from mineral modified polypropylene materials (PP-MD) in the field of non-pressure underground drainage and sewerage outside the building structure (application area code "U"), and non-pressure underground drainage and sewerage for both buried in ground within the building structure (application area code "D") and outside the building structure. This is reflected in the marking of products by "U" and "UD". It also specifies the test parameters for the test methods referred to in this European Standard. This European Standard covers a range of nominal sizes, a range of pipe series/stiffness classes and gives recommendations concerning colours. NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selection from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. In conjunction with Part 2 and Part 3 of EN 14758 (see Foreword) it is applicable to PP-MD pipes and fittings, their elastomeric sealing ring joints and to joints with components of other plastics and non-plastics materials intended to be used for buried piping systems for non-pressure underground drainage and sewerage. This European Standard is applicable to PP-MD pipes with or without an integral socket. NOTE 2 The fittings can be manufactured by injection-moulding or be fabricated from pipes and/or mouldings. NOTE 3 Requirements and limiting values for application area code "D" are given in Table 4, Table 7 and Table 13. NOTE 4 Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex B can be used with pipes and fittings conforming to this European Standard, when they conform to the requirements for joint dimensions given in Clause 6 and to the requirements of Table 13. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 681-1,
Elastomeric seals — Material requirements for pipe joint seals used in water and drainage applications — Part 1: Vulcanized rubber EN 681-2,
Elastomeric seals — Material requirements for pipe joint seals used in water and drainage applications — Part 2: Thermoplastic elastomers EN 744:1995,
Plastics piping and ducting systems — Thermoplastics pipes — Test method for resistance to external blows by the round-the-clock method !deleted text" EN 1055:1996,
Plastics piping systems — Thermoplastics piping systems for soil and waste discharge inside buildings — Test method for resistance to elevated temperature cycling EN 1277:2003,
Plastics piping systems — Thermoplastics piping systems for buried non-pressure applications — Test methods for leaktightness of elastomeric sealing ring type joints EN 1411,
Plastics piping and ducting systems — Thermoplastics pipes — Determination of resistance to external blows by the staircase method SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 6 !deleted text" EN 12061,
Plastics piping systems — Thermoplastics fittings — Test method for impact resistance EN 12256,
Plastics piping systems — Thermoplastics fittings — Test method for mechanical strength or flexibility of fabricated fittings EN ISO 472:2001,
Plastics — Vocabulary (ISO 472:1999) EN ISO 580:2005, Plastics piping and ducting systems - Injection-moulded thermoplastics fittings - Methods for visually assessing the effects of heating (ISO 580:2005) EN ISO 1043-1:2001,
Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special characteristics (ISO 1043-1:2001) 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) !EN ISO 1167 (all parts), Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of the resistance to internal pressure" EN ISO 2505:2005, Thermoplastics pipes — Longitudinal reversion — Test method and parameters (ISO 2505:2005) EN ISO 3126,
Plastics piping systems — Plastics components — Determination of dimensions (ISO 3126:2005) !EN ISO 13968, Plastics piping and ducting systems — Thermoplastics pipes — Determination of ring flexibility (ISO 13968:2008)" EN ISO 9969,
Thermoplastics pipes — Determination of ring stiffness !(ISO 9969:2007)" ISO 6259-3,
Thermoplastics pipes — Determination of tensile properties — Part 3: Polyolefin pipes ISO 13967,
Thermoplastics fittings — Determination of ring stiffness 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this European Standard, the terms, definitions and symbols given in EN ISO 472:2001 and EN ISO 1043-1:2001 and the following apply. 3.1.1 application area code code used in the marking of pipes and fittings to indicate the application area for which they are intended, as follows: U:
code for the area more than 1 m from the building to which the buried piping system is connected; D:
code for the area under and within 1 m from the building where the pipes and the fittings are buried in ground and are connected to the soil and waste discharge system of the building NOTE In code D application areas, the existence of hot water discharge in addition to the external forces from the surroundings is usual. SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 7 3.1.2 Geometrical definitions 3.1.2.1 nominal size DN numerical designation of the size of a component, which is a convenient round number approximately equal to the manufacturing dimension, in millimetres 3.1.2.2 nominal size DN/OD nominal size, related to the outside diameter 3.1.2.3 nominal outside diameter dn specified outside diameter, in millimetres, assigned to a nominal size (DN/OD) 3.1.2.4 outside diameter de value of the measurement of the outside diameter through its cross section at any point of a pipe or spigot end of a fitting, rounded up to the next greater 0,1 mm 3.1.2.5 mean outside diameter dem value of the measurement of the outer circumference of a pipe or spigot end of a fitting in any cross section, divided by π (≈ 3,142), rounded to the next greater 0,1 mm 3.1.2.6 mean inside diameter of a socket ds,m arithmetical mean of a number of measurements of the inside diameter of a socket in the same cross section 3.1.2.7 wall thickness e value of the measurement of the wall thickness at any point around the circumference of a component 3.1.2.8 mean wall thickness em arithmetical mean of a number of measurements of the wall thickness, regularly spaced around the circumference and in the same cross section of a component, including the measured minimum and the measured maximum values of the wall thickness in that cross section 3.1.2.9 pipes series S number for pipe designation (see ISO 4065 [1]) SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 8 3.1.2.10 standard dimension ratio SDR numerical designation of a pipe series, which is a convenient round number approximately equal to the ratio of the nominal outside diameter, dn, and the minimum wall thickness, emin 3.1.2.11 nominal ring stiffness SN numerical designation of the ring stiffness of a pipe or fitting, which is a convenient round number, relative to the determined stiffness in kiloNewtons per square metre (kN/m2), indicating the minimum ring stiffness of a pipe or fitting 3.1.2.12 design length Z length of a fitting (e.g. the main pipe of a branch) excluding any spigot or socket length.
In case of a change in direction (e.g. in case of a bend or the service pipe of a branch), it is the length from one end to the intersection of the straight axis of this end with the straight axis of the other end of the fitting, excluding any spigot or socket length (see the dimensions Z1 and Z2 in e.g. Figures 7 and 11) 3.1.3 Material definitions 3.1.3.1 virgin material material in a form such as granules or powder that has not been subjected to use or processing other than that required for its manufacture and to which no reprocessable or recyclable material has been added 3.1.3.2 mineral modified material (PP-MD) material to which has been added minerals during specific processing operation(s) which during such processing is well distributed in the material 3.1.3.3 mean particle size D50 diameter which 50 % by mass of the particles of a mineral modifier is smaller than 3.1.3.4 particle top cut D98 diameter which 98 % by mass of the particles of a mineral modifier is smaller than 3.1.3.5 own reprocessable material material prepared from rejected unused pipes or fittings including trimmings from the production of pipes or fittings, that will be reprocessed in a manufacturer's plant after having been previously processed by the same manufacturer by a process such as moulding or extrusion, and for which the complete formulation is known 3.1.3.6 external reprocessable material material comprising either one of the following forms: a) material from rejected unused pipes or fittings or trimmings there from, that will be reprocessed and that were originally processed by another manufacturer; SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 9 b) material from the production of unused products other than pipes and fittings, regardless of where they are manufactured 3.1.3.7 recyclable material material comprising either one of the following forms: a) material from used pipes or fittings which have been cleaned and crushed or ground; b) material from used products other than pipes or fittings which have been cleaned and crushed or ground 3.2 Symbols A length of engagement C depth of sealing zone D50 mean particle size D98 particle top cut de outside diameter dem mean outside diameter dim mean inside diameter dn nominal outside diameter dsm mean inside diameter of a socket e wall thickness em mean wall thickness e2 wall thickness of a socket e3 wall thickness in the groove area l effective length of a pipe L1 length of spigot M length of spigot of a plug R radius of swept fittings Z design length of (a part) of a fitting α nominal angle of a fitting 3.3 Abbreviations CaCO3 calcium carbonate DN nominal size DN/OD nominal size, outside diameter related MFR melt mass-flow rate SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 10 MgCO3
magnesium carbonate Mg3Si4O10(OH)2 magnesium silicate PP polypropylene PP-MD mineral modified polypropylene SDR standard dimension ratio SN nominal ring stiffness TIR true impact rate 4 Material 4.1 PP-MD material The base material for PP-MD pipes and fittings shall be a polypropylene base material to which are added mineral modifier(s) of known specification and containing those other additives that are needed to facilitate the manufacture of components conforming to the requirements of this European Standard. 4.2 Reprocessable and recyclable material In addition to virgin material the use of the manufacturer’s own reprocessable material obtained during the production and testing of products conforming to this European Standard and by using material from piping components of own production is permitted. External reprocessable or recyclable material shall not be used. 4.3 Melt mass-flow rate Pipes and fittings shall be made from PP-MD materials where the PP base material has an MFR as follows: MFR (230/2,16) ≤ 1,5 g/10 min. The MFR of the base material shall be tested in accordance with EN ISO 1133:2005, Annex A, condition M (temperature:
230 °C; loading mass:
2,16 kg). 4.4 Mineral modifiers 4.4.1 Types of mineral modifiers The mineral modifiers shall be of following types: coated calcium carbonate, CaCO3 or talc. When it is calcium carbonate following apply: content of CaCO3 ≥ 96 % by mass; content of MgCO3
≤ 4 % by mass; content of CaCO3 and MgCO3 in total ≥ 98 % by mass. SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 11 When it is talc following apply: content of magnesium silicate (Mg3Si4O10(OH)2) ≥ 97 % by mass. NOTE The addition of mineral modifiers is an effective way of increasing the E-modulus of the base polypropylene material. 4.4.2 Characteristics of mineral modifiers The physical properties of modifiers shall conform to the following: For CaCO3: mean particle size, D50 ≤ 2,5 µm; particle top cut, D98 ≤ 20 µm. For talc: mean particle size; D50 ≤ 7 µm; particle top cut, D98 ≤ 30 µm. 4.4.3 Content of mineral modifier The content of mineral modifier in pipes and fittings shall be less than 50 % by mass. The actual quantity and specification of mineral modifier shall be specified in the manufacturers quality plan. 4.4.4 Dispersion of mineral modifiers To ensure a good dispersion of the mineral modifier, the pipe shall be pressure tested in accordance with !EN ISO 1167" at 80 °C with circumferential (hoop) stress of 5,5 MPa. No failure within the test period of one hour. 4.5 Durability The durability of the material shall be demonstrated by testing samples in pipe form according to 4.5.1 and 4.5.2. 4.5.1 Resistance to internal pressure When tested in accordance with the test method as specified in Table 1, using the indicated parameters, the material shall have characteristics conforming to the requirements given in Table 1. The material shall be tested in the form of a pipe. SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 12 Table 1 —
Material characteristics (long-term behaviour) Characteristic Requirements Test parameters Test methodResistance to internal pressure No failure during the test period End caps Test temperature Orientation Number of test pieces Circumferential (hoop) stress Conditioning period Type of test Test period Types a) or b) 80 °C Not specified 3 4,2 MPa 1 h water-in-water 140 h !EN ISO 1167" Resistance to internal pressure No failure during the test period End caps Test temperature Orientation Number of test pieces Circumferential (hoop) stress Conditioning period Type of test Test period Types a) or b) 95 °C Not specified 3 2,5 MPa 1 h Water-in-water 1 000 h !EN ISO 1167"
4.5.2 Long term durability test Long-term durability of the PP-MD material shall be tested by conditioning an extruded pipe sample of dimension de = 110 mm after the ends are closed, under the conditions given below: conditioning time: 1 year (8 760 h); internal pressure: (0,5 ± 0,1) bar; conditioning temperature: (95 ± 1) °C; conditioning environment: water-in-water. No breakage or leakage shall occur during the one-year conditioning period. After conditioning in one year the pipe shall be tested on ring stiffness in accordance EN ISO 9969 and ring flexibility in accordance with !EN ISO 13968" and meet the relevant requirements in Table 6. Test pieces cut from the pipe shall be subjected to tensile testing in accordance with ISO 6259-3 at (23 ± 2) °C with the following amendments: 5.1.2: test piece type 2 for wall thicknesses < 5 mm and type 1 for wall thicknesses ≥ 5 mm. Clause 7: test speed 10 mm/min for both type 1 and type 2 test pieces. The test piece shall be prepared by machining. Both tensile strength and elongation at break shall be controlled on five test pieces and the test result shall be calculated as the mean value of the five individual tests. When test results after one year conditioning according to above specified parameters are compared with test results on test pieces taken from non-conditioned pipe, the tensile strength and elongation at break shall not be reduced by more than 25 % after the conditioning. SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 13 4.6 Sealing ring retaining means Sealing rings may be retained using means made from polymers other than PP-MD. 5 General characteristics 5.1 Appearance When viewed without magnification, the following requirements apply. The internal and external surfaces of pipes and fittings shall be smooth, clean and free from grooving, blistering, impurities and pores and any other surface irregularity likely to prevent their conformity to this European Standard. Pipe ends shall be cleanly cut and the ends of pipes and fittings shall be square to their axis. 5.2 Colour The pipes and fittings shall be coloured through the wall except that in thin external and/or internal layers the use of colours are accepted for the purpose of colour coding, video inspection and/or UV-protection. The colour should preferably be black, orange-brown (approximately RAL 8023) 1) or dusty grey (approximately RAL 7037) 1). Other colours may be used. 6 Geometrical characteristics 6.1 General Dimensions shall be measured in accordance with EN ISO 3126. NOTE The figures are schematic sketches only to indicate the relevant dimensions. They do not necessarily represent the manufactured components. 6.2 Dimensions of pipes 6.2.1 Outside diameters The mean outside diameter, dem, shall conform to Table 2 or Table 3, as applicable.
1) See colour register RAL 840-HR [2]. SIST EN 14758-1:2006+A1:2009
EN 14758-1:2005+A1:2009 (E) 14 Table 2 — Mean diameters Dimensions in millimetresNominal size DN/OD Nominal outside diameter Mean outside diameter a
Minimum mean inside
diameter
Dn dem,min dem,max dim,min
SN 4 SN 8 110 125 160 110 125 160 110,0 125,0 160,0 110,4 125,4 160,5 102,0 116,0 148,8 99,2 112,6 144,4 200 250 315 200 250 315 200,0 250,0 315,0 200,6 250,8 316,0 185,8 232,6 293,2 180,6 226,0 284,8 355 400 450 355 400 450 355,0 400,0 450,0 356,1 401,2 451,4 330,4 372,4 419,2 321,0 361,8 407,2 500 630 800 500 630
...
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