1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58polyurethane coating for pipes Requirements and test methodsThe European Standard EN 15189:2006 has
2、 the status of a British StandardICS 23.040.01; 25.220.60Ductile iron pipes, fittings and accessories External BRITISH STANDARDBS EN 15189:2006BS EN 15189:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580
3、 49759 3Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of EN
4、 15189:2006. The UK participation in its preparation was entrusted to Technical Committee PSE/10, Iron pipes and fittings.A list of organizations represented on PSE/10 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN
5、STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15189November 2006ICS 23.040.01; 25.220.60English VersionDuctile iron pipes, fittings and accessories - Externalpolyurethane coating for pipes - Requirements and test methodsTuyaux, raccords et accessoires en fonte ductile -Revtement extrieur polyurthanne des
6、 tuyaux -Exigences et mthodes dessaiRohre, Formstcke und Zubehr aus duktilem Gusseisen -Polyurethanumhllung von Rohren - Anforderungen undPrfverfahrenThis European Standard was approved by CEN on 11 September 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipul
7、ate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists
8、 in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies o
9、f Austria, Belgium, 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 F
10、OR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15189:2006: EEN 15189:2006 (E) 2 Contents Page
11、Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Ordering information.7 5 Technical Requirements .7 6 Performance Requirements8 7 Test Methods9 Annex A (normative) Quality assurance.14 Annex B (normative) Coating application process16 Annex C (informative) Pa
12、ckaging 18 Bibliography 19 EN 15189:2006 (E) 3 Foreword This document (EN 15189:2006) has been prepared by Technical Committee CEN/TC 203 “Cast iron pipes, fittings and their joints”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard,
13、either by publication of an identical text or by endorsement, at the latest by May 2007, and conflicting national standards shall be withdrawn at the latest by May 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to im
14、plement this European Standard: Austria, Belgium, 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 Uni
15、ted Kingdom. EN 15189:2006 (E) 4 Introduction This standard is in conformity with the general requirements already established by CEN/TC 164 in the field of water supply (e.g. potable water) and CEN/TC 165 in the field of waste water. In respect of potential adverse effects on the quality of water i
16、ntended for human consumption caused by the product covered by this standard: a) this standard provides no information as to whether the product may be used without restriction in any of the member states of the EU or EFTA; b) it should be noted that, while awaiting the adoption of verifiable Europe
17、an criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. EN 15189:2006 (E) 5 1 Scope This European standard defines the requirements and test methods applicable to factory applied external polyurethane based coatings for heavy duty (An
18、nex D.3 of EN 545:2002) corrosion protection of buried ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 C. This standard does not cover ductile iron pipes protected with zinc with a finishing layer of polyurethane. This standard does not cover spe
19、cial activities on site such as tapping, clamping, etc., which could affect the corrosion protection properties of the polyurethane coating. These operations should be covered in the laying instructions supplied by manufacturers of clamps, house connection saddles, etc. and any relevant user procedu
20、res. 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 545:2002, Ductile
21、iron pipes, fittings, accessories and their joints for water pipelines - Requirements and test methods EN 598, Ductile iron pipes, fittings, accessories and their joints for sewerage application - Requirements and test methods EN 969, Ductile iron pipes, fittings, accessories and their joints for ga
22、s pipelines - Requirements and test methods EN 14901, Ductile iron pipes, fittings and accessories - Epoxy coating (heavy duty) of ductile iron fittings and accessories - Requirements and test methods EN ISO 62, Plastics - Determination of water absorption (ISO 62:1999) EN ISO 527-3, Plastics - dete
23、rmination of tensile properties Part 3: Test conditions for films and sheets (ISO 527-3:1995) EN ISO 868, Plastics and ebonite - Determination of indentation hardness by means of a durometer (Shore hardness) (ISO 868:2003) EN ISO 4624, Paints and varnishes; Pull-off test for adhesion (ISO 4624:2002)
24、 EN ISO 85011, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings (ISO 8501-1:1988) EN IS
25、O 85031, Preparation of steel substrates before application of paints and related products - Surface roughness characteristics of blast-cleaned steel substrates - Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces (ISO 850
26、3-1:1988) EN 15189:2006 (E) 6 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 ductile iron cast iron used for pipes, fittings and accessories in which graphite is present; substantially in spheroidal form 3.2 adhesion force per unit area, app
27、lied perpendicularly to the surface, which is necessary to separate the coating from its substrate 3.3 impact strength impact energy which a coating can withstand without damage under defined test conditions 3.4 hardness resistance of the coating to penetration of a ball under defined test condition
28、s 3.5 non-porosity absence of holidays in a high voltage test under defined test conditions 3.6 polyurethane coating factory applied coating which consists of polyurethane on the outside of the pipe barrel and external socket Key 1 Gasket seat 2 Socket entrance 3 Socket face 4 External socket 5 Pipe
29、 barrel 6 Spigot end Figure 1 Location of the defined pipe areas Pipe ends such as the spigot end, the socket face, the socket entrance and gasket seat may be coated differently (see 5.3) 3.7 specific coating resistance surface related electric resistance of the coating perpendicular to the pipe wal
30、l EN 15189:2006 (E) 7 3.8 performance test test which is done once and is repeated according to a schedule or after a relevant change of coating material and/or coating supplier or change in process application 3.9 routine test test carried out to control the manufacturing process with a frequency d
31、efined by the manufacturer 4 Ordering information The following information shall be obtained by the manufacturer. Ductile iron pipes according to EN 545, EN 598 or EN 969, but externally coated in accordance with this European Standard shall be specified in the purchaser enquiry and order by refere
32、nce to this standard. EXAMPLE: 5 000 m of ductile iron pipe DN 300 according to EN 545; external polyurethane coating according to EN 15189. The manufacturer shall obtain from the purchaser the type of coating to be used for pipe ends (see 5.3). 5 Technical Requirements 5.1 Surface preparation Prior
33、 to application of the polyurethane coating, the surface of the pipes shall be technically clean, free of rust, loose constituent materials, dirt, oil, grease and moisture. In cold weather, or anytime when moisture tends to condense on the surface of the pipe, the pipe shall be uniformly warmed for
34、a sufficient time to dry the pipe prior to cleaning. The pipe temperature shall be maintained at at least 5 C above the dew point. The surface shall be prepared by grit blasting and be in compliance with level Sa 2.5 of EN ISO 8501-1. The surface roughness Ra, in accordance with EN ISO 8503-1, shall
35、 be at least 10 micrometers which is equivalent to an anchored profile, Rz of 50 micrometers or higher if required by the coating material provider or manufacturer. 5.2 Finished polyurethane coating 5.2.1 Appearance and continuity The polyurethane coating shall be: uniform in colour, except the spig
36、ot and the socket which may be of a different colour for permitted marking; uniform appearance and smoothness except for admissible repairs; free of visible defects (pinholes, bubbles, blisters, wrinkles, cracks or voids). Slight superficial variations of colour or brilliance, due to repairs or prol
37、onged exposure to sunlight or contact with other pipes are permissible. EN 15189:2006 (E) 8 5.2.2 Minimum coating thickness When measured in accordance with 7.1.3, the minimum coating thickness (x 2 ) shall be 700 m. 5.3 Pipe ends Spigot end, socket face, socket entrance and gasket seat shall be coa
38、ted with one of the following: a) epoxy coating in accordance with EN 14901; b) polyurethane in accordance with this standard except gasket seat, socket face and socket entrance with a minimum coating thickness of 100 m; c) bituminous paint; in this case these designated zones shall be protected aft
39、er laying using appropriate measures, e.g. heat shrinkable sleeves, which are not within the scope of this standard. When the spigot end and socket entrance are coated with polyurethane or epoxy, the manufacturer shall ensure that the corresponding diameters are such that the joint can be assembled.
40、 5.4 Repairs In case of holidays or damage, repairs shall be carried out in accordance with the manufacturers written instructions. All repairs shall subsequently meet the non-porosity test requirements. 5.5 Marking All pipes shall be marked legibly and durably according to pipe standards EN 545, EN
41、 598 or EN 969. Reference to this standard shall be legibly and durably applied by any method upon the external surface of the polyurethane coating. 5.6 Non-porosity When tested in accordance with the test method described in 7.1.7, the polyurethane coating shall be free from porosity. The test tens
42、ion shall be 4,2 kV when using wire mesh electrodes and 6 kV when using conductive rubber electrodes. For thicker coatings, a higher test voltage may be used by agreement between the manufacturer and the purchaser. 5.7 Hardness When assessed by testing in accordance to EN ISO 868 the hardness of the
43、 polyurethane coating shall be at a minimum 70 Shore D. 5.8 Adhesion Adhesion shall be at least 8 MPa when tested in accordance with 7.1.9. 6 Performance Requirements 6.1 Chemical resistance The chemical resistance is determined by the change in weight of the polyurethane coating. When tested in acc
44、ordance to 7.2.1, the weight increase and weight loss shall meet the requirements given in Table 1 when compared to the original weight. EN 15189:2006 (E) 9 Table 1 Weight change requirements Property Unit Test method Clause Requirement Mass change in deionised water, 100 days at 50 C subsequent dry
45、ing 100 days at 23 C % % Immersion test EN ISO 62 method 2 7.2.1.1 Less than 15 % weight increase Less than 2 % weight loss Mass change in 10 % sulphuric acid, 100 days at 50 C subsequent drying 100 days at 23 C % % Immersion test EN ISO 62 method 2 7.2.1.2 Less than 10 % weight increase Less than 4
46、 % weight loss 6.2 Impact strength The minimum impact strength shall be determined in accordance with the test method defined in 7.2.2 with an impact energy, E of at least 8 j/mm. The coating shall show no damage when tested in accordance with 7.1.7. 6.3 Indentation resistance The coating shall have
47、 a maximum static indentation of 10 % when subjected to a pressure of 10 MPa in accordance with 7.2.3. 6.4 Elongation at break The elongation at break shall be assessed by testing in accordance with the test method defined in 7.2.4. The coating shall have a minimum elongation at break of 2,5 %. 6.5
48、Specific coating resistance The specific coating resistance of the polyurethane coating shall be assessed by testing in accordance with the test method defined in 7.2.5. The specific coating resistance of the polyurethane coating after immersion in a 0,1 M NaCl solution for 100 days shall be at leas
49、t 108 m2. The ratio (resistance after 100 days)/(resistance after 70 days) shall not be less than 0,8 if the specific resistance of the coating is only one decimal power above the minimum permissible value for 100 days. 7 Test Methods 7.1 Routine tests The following routine tests shall be carried out to control the coating production process to obtain a coating of high and stable quality. EN 15189:2006 (E) 10 7.1.1 Surface preparation The blasted surface of the pipes shall be checked visually for compli
