1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21597-2 SANS 8770:2008Edition 1ISO 8770:2003Edition 2SOUTH AFRICAN NATIONAL STANDARD Plastics piping systems for soil and waste discharge
4、(low and high temperature) inside buildings Polyethylene (PE) This national standard is the identical implementation of ISO 8770: 2003 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private B
5、ag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 8770: 2008 Edition 1 ISO 8770: 2003 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS SC 138H, Water and sanitation Equipment a
6、nd systems Plastics pipes and fittings, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in August 2008. Reference numberISO 8770:2003(E)ISO 2003INTERNATIONAL STANDARD ISO8770Second edition2003-11-15Pl
7、astics piping systems for soil and waste discharge (low and high temperature) inside buildings Polyethylene (PE) Systmes de canalisations en plastique pour lvacuation des eaux-vannes et des eaux uses ( basse et haute temprature) lintrieur des btiments Polythylne (PE) SANS 8770:2008This s tandard may
8、 only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are
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11、problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and mic
12、rofilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO
13、2003 All rights reservedSANS 8770:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) ISO 2003 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Symbols and abbreviated. 2
14、4 Material. 3 5 General characteristics 4 6 Geometrical characteristics. 4 7 Physical characteristics . 18 8 Performance requirements 19 9 Sealing rings 19 10 Marking. 20 11 Installation of piping systems . 21 Annex A (informative) Additional characteristics of PE pipes and fittings 22 Bibliography
15、. 23 SANS 8770:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) iv ISO 2003 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO m
16、ember bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governm
17、ental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Dir
18、ectives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bo
19、dies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 8770 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fitting
20、s and valves for the transport of fluids, Subcommittee SC 1, Plastics pipes and fittings for soil, waste and drainage (including land drainage). This second edition cancels and replaces the first edition (ISO 8770:1991), which has been technically revised. SANS 8770:2008This s tandard may only be us
21、ed and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) ISO 2003 All rights reserved vIntroduction Pipes and fittings conforming to this International Standard also meet the requirements of EN 1519-1 which are applicable to those pipes and fittings which, accord
22、ing to EN 1519-1, are intended to be used inside buildings (application area code “B”, see EN 1519-1) only. SANS 8770:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 8770:2008This s tandard may only be used and printed by approved su
23、bscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 8770:2003(E) ISO 2003 All rights reserved 1Plastics piping systems for soil and waste discharge (low and high temperature) inside buildings Polyethylene (PE) 1 Scope This International Standard specifies the requirements for
24、solid-wall polyethylene (PE) pipes and fittings for soil and waste discharge (low and high temperature) inside buildings, as well as the system itself. It does not include buried pipework. It also specifies the test parameters for the test methods referred to in this International Standard. This Int
25、ernational Standard is applicable to PE pipes and fittings, as well as assemblies of such pipes and fittings, intended to be used for the following purposes: a) soil and waste discharge pipework for the conveyance of domestic waste waters (low and high temperature); b) ventilation pipework associate
26、d with a); c) rainwater pipework inside the building. It is applicable to pipes and fittings designed for jointing by means of elastomeric sealing rings or by butt fusion or electrofusion. 2 Normative references The following referenced documents are indispensable for the application of this documen
27、t. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 265-1, Pipes and fittings of plastics materials Fittings for domestic and industrial waste pipes Basic dimensions: Metric series Part
28、 1: Unplasticized poly(vinyl chloride) (PVC-U) ISO 1133:1997, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics ISO 3126:1), Plastics piping systems Plastics components Determination of dimensions EN 681-1, Elastomeric seals Materials requi
29、rements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber EN 681-2, Elastomeric seals Materials requirements for pipe joint seals used in water and drainage applications Part 2: Thermoplastic elastomers EN 728, Plastics piping and ducting systems Polyolefin pipes
30、 and fittings Determination of oxidation induction time 1) To be published. (Revision of ISO 3126:1974)SANS 8770:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) 2 ISO 2003 All rights reservedEN 743:1994, Plastics piping a
31、nd ducting systems Thermoplastics pipes Determination of the longitudinal reversion EN 744, Plastics piping and ducting systems Thermoplastics pipes Test method for resistance to external blows by the round-the-clock method EN 763:1994, Plastics piping and ducting systems Injection-moulded thermopla
32、stics fittings Test method for visually assessing effects of heating EN 1053, Plastics piping systems Thermoplastics piping systems for non-pressure applications Test method for watertightness EN 1054, Plastics piping systems Thermoplastics piping systems for soil and waste discharge Test method for
33、 airtightness of joints EN 1055:1996, Plastics piping systems Thermoplastics piping systems for soil and waste discharge inside buildings Test method for resistance to elevated temperature cycling 3 Symbols and abbreviations 3.1 Symbols A length of engagement B length of lead-in C depth of sealing z
34、one deoutside diameter (at any point) demmean outside diameter dnnominal outside diameter dsinside diameter of the socket dsmmean inside diameter of the socket DN nominal size DN/OD nominal size (outside-diameter related) e wall thickness (at any point) emmean wall thickness e2wall thickness of the
35、socket e3wall thickness at the groove E wall thickness of an electrofusion socket L1length of spigot L2depth of penetration SANS 8770:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) ISO 2003 All rights reserved 3L3length
36、of fusion zone L4unheated length of an electrofusion socket l effective length of a pipe N effective insertion depth R radius of swept fittings z design length (z-length) of a fitting nominal angle of a fitting 3.2 Abbreviations PE polyethylene MFR melt mass-flow rate OIT oxidation induction time 4
37、Material 4.1 PE compound The compound for pipes and fittings shall be PE based material to which may be added those additives that are needed to facilitate the manufacture of components conforming to the requirements of this International Standard. In order to conform to national requirements on fir
38、e regulations, other additives may be used. Fabricated fittings or parts of fabricated fittings shall be made from pipes and/or mouldings conforming to this International Standard, except for the requirements for the wall thickness of fabricated fittings and/or mouldings from PE which conform to mat
39、erial and physical characteristics as required in this International Standard. 4.2 Reprocessable and recyclable material In addition to virgin material, the use of reprocessable material obtained during the production and testing of products conforming to this International Standard is permitted. Ex
40、ternal reprocessable or recyclable material shall not be used. NOTE Definitions concerning materials are given in EN 1519-1. 4.3 Melt mass-flow rate The MFR of the PE base material shall be determined in accordance with ISO 1133:1997, using set of conditions T (temperature: 190 C, load: 5 kg). Pipes
41、 and fittings shall be made from materials with an MFR lying in the following range: 0,2 g/10 min u MFR (190/5) u 1,1 g/10 min SANS 8770:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) 4 ISO 2003 All rights reserved4.4 Fu
42、sion-jointing compatibility Compounds designated PE 63, PE 80 and PE 100 having an MFR (190/5) lying in the range given in 4.3 shall be considered to be compatible for fusion-jointing to each other. 4.5 Thermal stability When determined in accordance with EN 728, using a test temperature of 200 C, t
43、he oxidation induction time (OIT) of the material shall be not less than 20 min. NOTE This requirement for thermal stability is only applicable to materials for pipes and fittings intended for butt fusion. 4.6 Sealing ring retaining means Sealing rings may be retained, using means made from plastics
44、 other than PE, provided the joints conform to the requirements given in Clause 8. 4.7 Fire behaviour No specific requirements are set by this International Standard on fire behaviour. Attention is drawn to the need to comply with any relevant national regulations in this respect. 5 General characte
45、ristics 5.1 Appearance When viewed without magnification, the following requirements shall be met: the internal and external surfaces of pipes and fittings shall be smooth, clean and free from grooving, blistering, impurities, pores or any other surface irregularity likely to prevent conformity of p
46、ipes and fittings to this International Standard; each end of a pipe or fitting shall be cleanly cut, if applicable, and shall be square to its axis. 5.2 Colour Pipes and fittings shall be uniformly coloured through the whole wall. The recommended colour for pipes and fittings is black. 6 Geometrica
47、l characteristics 6.1 General All dimensions shall be measured in accordance with ISO 3126. The figures given in this International Standard are schematic sketches only, to indicate the relevant dimensions. They do not necessarily represent manufactured components. The dimensions given shall be conf
48、ormed to however. SANS 8770:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8770:2003(E) ISO 2003 All rights reserved 56.2 Dimensions of pipes 6.2.1 Outside diameter The mean outside diameter, dem, shall conform to Table 1 or Table 2,
49、 as applicable. Table 1 Mean outside diameters (metric series) Dimensions in millimetres Nominal size Nominal outside diameter Mean outside diameter DN/OD dndemmin. max. 32 40 50 56 63 32 40 50 56 63 32,0 40,0 50,0 56,0 63,0 32,3 40,4 50,5 56,5 63,6 75 80 90 100 110 75 80 90 100 110 75,0 80,0 90,0 100,0 110 75,7 80,8 90,9 100,9 111 125 160 200 250 315 125 160 200 250 315 125,0 160,0 200,0 250,0 315,0 126,2 161,5 201,8 252,3 317,9 Table 2 Mean outside diameters
