EN 1254-8:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kupfer und Kupferlegierungen - Fittings - Teil 8: Pressfittings für den Einsatz mit Kunststoff- und MehrschichtverbundrohrenCuivre et alliages de cuivre - Raccords - Partie 8 : Raccords à sertir pour tuyaux en plastique et tubes multicouchesCopper and copper alloys - Plumbing fittings - Part 8: Fittings with press ends for use with plastics and multilayer pipes77.150.30Bakreni izdelkiCopper products23.040.40Kovinski fitingiMetal fittingsICS:Ta slovenski standard je istoveten z:EN 1254-8:2012SIST EN 1254-8:2014en,fr,de01-julij-2014SIST EN 1254-8:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1254-8
October 2012 ICS 23.040.40 English Version
Copper and copper alloys - Plumbing fittings - Part 8: Fittings with press ends for use with plastics and multilayer pipes
Cuivre et alliages de cuivre - Raccords - Partie 8: Raccords à sertir pour tuyaux en plastique et tubes multicouches
Kupfer und Kupferlegierungen - Fittings - Teil 8: Pressfittings für den Einsatz mit Kunststoff- und Mehrschichtverbundrohren This European Standard was approved by CEN on 11 August 2012.
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, Former Yugoslav Republic of Macedonia, 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.
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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 1254-8:2012: ESIST EN 1254-8:2014

Resistance to stress corrosion . 20A.1 Introduction . 20A.2 Test piece . 20A.3 Procedure . 20A.4 Test report . 20Annex B (normative)
Pressure test for fitting bodies with as cast microstructure or fabricated by welding or brazing . 21B.1 Introduction . 21B.2 Principle. 21B.3 Apparatus . 21B.4 Test piece . 21B.5 Procedure . 22Annex C (normative)
Determination of mean depth of dezincification . 23C.1 Introduction . 23C.2 Procedure . 23C.3 Expression of results . 23Bibliography . 24 SIST EN 1254-8:2014

 Part 8: Fittings with press ends for use with plastics and multilayer pipes Part 7 will be the subject of future work. 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, Former Yugoslav Republic of Macedonia, 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.
This European Standard is applicable to press fittings for joining the following plastics and multilayer pipes: EN ISO 15874, Plastics piping systems for hot and cold water installations — Polypropylene (PP); EN ISO 15875, Plastics piping systems for hot and cold water installations — Crosslinked polyethylene (PE-X); EN ISO 15876, Plastics piping systems for hot and cold water installations — Polybutylene (PB); EN ISO 15877, Plastics piping systems for hot and cold water installations — Chlorinated poly (vinyl chloride) (PVC-C); EN ISO 21003, Multilayer piping systems for hot and cold water installations inside buildings; EN ISO 22391, Plastics piping systems for hot and cold water installations — Polyethylene of raised temperature resistance (PE-RT); ISO 17484, Plastics piping systems — Multilayer pipe systems for indoor gas installations with a maximum operating pressure up to and including 5 bar (500 kPa). Fittings may be suitable for joining other pipes provided the fitting joint with the specified pipe meets the requirements of this European Standard and the relevant pipe standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 549:1994, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 681-1:1996, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage applications — Part 1: Vulcanised rubber EN 1254-4, Copper and copper alloys — Plumbing fittings — Part 4: Fittings combining other end connections with capillary or compression ends EN 1655, Copper and copper alloys — Declarations of conformity EN 1982, Copper and copper alloys — Ingots and castings EN 12164, Copper and copper alloys — Rod for free machining purposes EN 12165, Copper and copper alloys – Wrought and unwrought forging stock SIST EN 1254-8:2014

ISO 6957:1988, Copper alloys — Ammonia test for stress corrosion resistance ISO 9924-1, Rubber and rubber products — Determination of the composition of vulcanizates and uncured compounds by thermogravimetry — Part 1: Butadiene, ethylene-propylene copolymer and terpolymer, isobutene-isoprene, isoprene and styrene-butadiene rubbers ISO 17484-1:2006, Plastics piping systems — Multilayer pipe systems for indoor gas installations with a maximum operating pressure up to and including 5 bar (500 kPa) — Part 1: Specifications for systems 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 plumbing fitting device used in a tube system for the purpose of connecting the tubes either to each other or to a component part of the system 3.2 press end end which may incorporate a sealing element and in which the joint is effected by radial compression of the ends of the fitting and the tube with a pressing tool Note 1 to entry: Some designs may incorporate an additional device to aid retention. Note 2 to entry: Compression of the ends of the fitting and the tube can be achieved directly or indirectly by radial compression. 3.3 adaptor fitting fitting combining more than one type of end Note 1 to entry: For details of other ends, see the relevant parts of this European Standard or other standards. SIST EN 1254-8:2014

Cu-DHP CW024A EN 12449 CuSn5Zn5Pb5-C CC491K EN 1982 CuZn36Pb2As CW602N EN 12164 CuZn39Pb3 CW614N EN 12164 CuZn40Pb2 CW617N EN 12165 CuZn33Pb2-C CC750S EN 1982 CuZn15As-C CC760S EN 1982 NOTE These examples do not constitute an exhaustive list.
Other components can be made from metallic or non-metallic materials, provided that they do not prevent the fitting meeting the functional requirements of this European Standard and do not cause degradation of the connected pipe. Copper is not acceptable for use with polypropylene pipes – alloys are acceptable. In the case of multi-layer pipes, the fitting design shall avoid contact between dissimilar metallic components that might give rise to corrosion. Non-metallic sealing elements for fitting ends for water applications shall conform to the requirements for elastomeric materials in EN 681-1 and Tables 2 and 3 of this European Standard. Table 2 — Requirements and tests for non-metallic sealing elements Test Procedures Tear strength in accordance with EN 681-1:1996, Table 3. This requirement applies to all elastomeric sealing materials. Minimum tear strength: ≥ 20 N Thermogravimetric analysis for identity testing of elastomeric materials. The TGA is carried out in accordance with ISO 9924-1. Frequency of test - the TGA shall be carried out at the type testing stage to produce the master graph. Further analysis will be made to compare the production to the master graph at a frequency of once per year thereafter.
In order to demonstrate durability for long-term applications in water, elastomeric sealing elements shall be tested in accordance with the parameters shown in Table 3. SIST EN 1254-8:2014

Table 3 — Durability test for elastomeric sealing elements for fittings for water applications Test procedures Compression set test in water, in accordance with EN 681-1:1996, Annex B, and ISO 815-1.
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