1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58apparatus and plants against corrosion caused by aggressive media Part 4: Linings on metallic compo
2、nentsThe European Standard EN 14879-4:2007 has the status of a British StandardICS 25.220.60Organic coating systems and linings for protection of industrial BRITISH STANDARDBS EN 14879-4:2007BS EN 14879-4:2007This British Standard was published under the authority of the Standards Policy and Strateg
3、y Committee on 31 August 2007 BSI 2007ISBN 978 0 580 55810 8Amendments issued since publicationAmd. No. Date CommentsCompliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 14879-4:2007. The UK participati
4、on in its preparation was entrusted to Technical Committee ISE/16, Protective coatings and linings of metal pipes and fittings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions o
5、f a contract. Users are responsible for its correct application.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14879-4August 2007ICS 25.220.60English VersionOrganic coating systems and linings for protection of industrialapparatus and plants against corrosion caused by aggressivemedia - Part 4: L
6、inings on metallic componentsSystmes de revtements organiques de peinture et autresrevtements rapports pour la protection des appareils etinstallations industriels contre la corrosion par des milieuxagressifs - Partie 4: Revtements rapports pourcomposants mtalliquesBeschichtungen und Auskleidungen a
7、us organischenWerkstoffen zum Schutz von industriellen Anlagen gegenKorrosion durch aggressive Medien - Teil 4: Auskleidungenfr Bauteile aus metallischen WerkstoffenThis European Standard was approved by CEN on 24 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations wh
8、ich stipulate 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 CEN Management Centre or to any CEN member.This European Sta
9、ndard exists 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national stan
10、dards 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 King
11、dom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14879-4:2007: EEN 14879
12、-4:2007 (E) 2 Contents Page Foreword4 1 Scope 5 2 Normative references 5 3 Terms and definitions .7 4 General7 4.1 Materials .7 4.1.1 Metallic substrates and semi-finished products 7 4.1.2 Linings 7 4.2 Selection criteria9 4.2.1 General9 4.2.2 Aggressive substances.10 4.2.3 Type and frequency of flu
13、id loading12 4.2.4 Thermal loading .12 4.2.5 Changes in temperature12 4.2.6 Mechanical loading13 4.2.7 Climatic influences 13 4.2.8 Additional requirements .13 4.3 Load profile 13 4.4 Design of component 13 4.5 Manufacture of the lining 13 4.5.1 Environmental conditions.13 4.5.2 Surface condition an
14、d preparation of the substrate14 4.5.3 Preparation and application of pre-cut parts of the semi-finished products 14 4.5.4 Lining joints15 4.5.5 Thermal post treatment.17 4.6 Lined component.17 5 Repair of defects17 6 Designations 17 7 Packaging, transport, storage and installation 18 7.1 General18
15、7.2 Packaging and transport.18 7.3 Storage18 7.4 Installation 19 8 External finish of surfaces not to be lined 19 9 Testing 19 9.1 General19 9.2 Basic requirements19 9.2.1 Resistance to the service fluid.19 9.2.2 Cleaning and neutralizing processes 19 9.2.3 Adhesive strength19 9.2.4 Capability of di
16、ssipating electrostatic charges 19 9.2.5 Additional requirements .20 9.3 Testing of suitability20 9.3.1 General20 9.3.2 Testing of resistance and tightness to the service fluid .21 9.3.3 Testing of adhesive strength21 9.3.4 Testing of capability to dissipate electrostatic charges22 9.4 Acceptance in
17、spection22 9.4.1 General22 9.4.2 Visual inspection .22 9.4.3 Measurement of lining thickness.23 9.4.4 Testing of Hardness 24 9.4.5 Testing of Adhesion 25 EN 14879-4:2007 (E) 3 9.4.6 High-voltage testing for tightness .26 9.4.7 Testing of capability to dissipate electrostatic charges (special test) 2
18、7 9.4.8 Destructive testing of weld seams (special test) .27 9.4.9 Test report27 Annex A (informative) 28 Annex B (normative) Material combinations to which the media lists for rubber linings are applicable .29 B.1 Hard rubber linings (media list I).29 B.2 Soft rubber linings.29 B.2.1 Butyl rubber,
19、halogenated butyl rubber (media list II)29 B.2.2 Chloroprene rubber (media list III) .29 B.3 Test media for the media lists29 B.3.1 General .29 B.3.2 Media lists 30 Annex C (normative) Test fluid groups for verification of suitability for material/media combinations .32 Annex D (normative) Testing t
20、he dissipating capability.35 D.1 Principle .35 D.1.1 Dissipation resistance 35 D.1.2 Dissipation resistance to earth 35 D.2 Testing of dissipation resistance of test samples .35 D.2.1 Test equipment35 D.2.2 Test procedure.35 D.2.3 Test report36 D.3 Measurement of dissipation resistance to earth on t
21、he completely applied lining .36 D.3.1 Test equipment36 D.3.2 Preparation of the lining .36 D.3.3 Procedure.36 D.3.4 Test report37 Annex E (informative) Sample form for acceptance inspection report .38 Annex F (informative) Adeviations39 Bibliography40 EN 14879-4:2007 (E) 4 Foreword This document (E
22、N 14879-4:2007) has been prepared by Technical Committee CEN/BT/Task Force 130 “Or-ganic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media”, the secretariat of which is held by DIN. This European Standard shall be given the sta
23、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2008, and conflicting national standards shall be withdrawn at the latest by February 2008. EN 14879 “Organic coating systems and linings for protection of industrial apparatus and pla
24、nts against corrosion caused by aggressive media“ consists of the following parts: Part 1: Terminology, design and preparation of substrate Part 2: Coatings on metallic components Part 3: Coatings on concrete components Part 4: Linings on metallic components Part 5: Linings on concrete components Pa
25、rt 6: Combined lining with tile and brick layers 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 Repub-lic, Denmark, Estonia, Finland, France, G
26、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14879-4:2007 (E) 5 1 Scope This document describes the requirements for and methods of testing
27、 of organic linings which are applied to metallic process engineering equipment that will come in contact with chemical substances. The requirements specified here may be used for the purposes of quality control (e.g. as agreed between the contract partners1). The standard applies to linings which s
28、erve one or more of the following purposes: to protect the component from adverse effects of aggressive substances; to protect waters (e.g. ground water) from harmful substances; to protect the charge from becoming contaminated by components released from the substrate material; to achieve a particu
29、lar surface quality. This standard applies to vessels, apparatus, piping parts and other components for process plants made of metallic substrate materials which are in contact with media and are provided with a surface protection made of a) prefabricated, natural or synthetic rubber based sheeting
30、(subsequently named rubber lining), to be applied in the workshop or on site; b) prefabricated, phenol formaldehyde or epoxy resin based sheeting (subsequently named duroplastic lin-ing), to be applied in the workshop only; c) prefabricated, thermoplastic products (e.g. foils, sheeting, plates, pipe
31、s) (subsequently named thermo-plastic lining), to be applied in the workshop or on site. The standard specifies the requirements, acceptance inspection, packaging, transport, storage and installation of organic linings for metallic materials. The tests described in this standard are intended for ver
32、ification of the suitability of sheeting used for linings and for acceptance inspection to be carried out on the products during or after application of the lining or as part of routine inspections to determine any changes effected in the lining during service. 2 Normative references The following r
33、eferenced documents are indispensable for the application of this document. For dated refer-ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 59, Glass reinforced plastics Measurement of hardness by mea
34、ns of a Barcol impressor EN 228, Automotive fuels Unleaded petrol Requirements and test methods EN 590, Automotive fuels Diesel Requirements and test methods EN 12814 (series), Testing of welded joints of thermoplastics semi-finished products prEN 13122, Hot gas welding of semifinished products of t
35、hermoplastic materials EN 14728, Imperfections in thermoplastic welds Classification 1) For the purposes of this standard, the contract partners are the lining material manufacturer, the component manufac-turer, the person(s) responsible for applying the lining, and the client ordering the linings.
36、EN 14879-4:2007 (E) 6 EN 14879-1:2005, Organic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media Part 1: Terminology, design and preparation of substrate EN ISO 291, Plastics - Standard atmospheres for conditioning and testing
37、(ISO 291:2005) EN ISO 868, Plastics and ebonite - Determination of indentation hardness by means of a durometer (Shore hardness) (ISO 868:2003) EN ISO 2039-1, Plastics Determination of hardness Part 1: Ball indentation method (ISO 2039-1:2001) EN ISO 4624:2003, Paints and varnishes Pull-off test for
38、 adhesion (ISO 4624:2002) EN ISO 8503-1, 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 bla
39、st-cleaned surfaces (ISO 8503-1:1988) EN ISO 8503-2, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 2: Method for the grading of surface profile of abrasive blast-cleaned steel - Comparator pr
40、ocedure (ISO 8503-2:1988) EN ISO 12944-4, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 4: Types of surface and surface preparation (ISO 12944-4:1998) IEC 60093:1980, Methods of test for volume resistivity and surface resistivity of solid electrical i
41、nsulating ma-terials IEC 60167, Methods of test for the determination of the insulation resistance of solid insulating materials ISO 813, Rubber, vulcanized or thermoplastic Determination of adhesion to a rigid substrate 90 degree peel method ISO 1817, Rubber vulcanised Determination of the effect o
42、f liquids EN 14879-4:2007 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14879-1:2005 and the following ap-ply. 3.1 loose lining loose shirt lining lining partly fixed mechanically but not glued to the surface 4 General 4.1 Materials 4.1.1 Meta
43、llic substrates and semi-finished products In accordance with EN 14879-1. 4.1.2 Linings 4.1.2.1 General The lining materials used shall be suitable for the respective chemical, thermal, mechanical and other stresses to be expected in service. The requirements for the lining shall be subject to agree
44、ment between the user/customer and the manufacturer. Verification of suitability shall be performed in accordance with Clause 9. The linings shall be tight and free from pores. For the purpose of this standard, pores are interconnected depth-penetrating cannular cavities (voids). The linings shall s
45、how no visible imperfections such as blisters, inclusions or impurities, which are likely to reduce their protective properties. 4.1.2.2 Rubber linings A distinction shall be made between soft and hard rubber linings. a) Soft rubber linings Non-vulcanised and vulcanised semi-finished rubber based pr
46、oducts shall be used as lining materials. The nominal lining thickness should be 4 mm. Other thickness has to be agreed and referenced in the standard designation. The following types of soft rubber materials are commonly used (symbols in accordance with ISO 1629): Symbol Name NR Natural rubber IR I
47、soprene rubber, synthetic CR Chloroprene rubber IIR Isobutene-isoprene rubber (butyl rubber) BIIR Bromo-isobutene-isoprene rubber (Bromobutyl rubber) CIIR Chloro-isobutene-isoprene rubber (Chlorobutyl rubber) CSM Chlorosulfonylpolyethylene (Hypalon) SBR Styrene-butadiene rubberNBR Acrylonitrile-buta
48、diene rubber (nitrile rubber) EN 14879-4:2007 (E) 8 b) Hard rubber linings Non-vulcanised semi-finished rubber based products shall be used as lining materials. The nominal lining thickness shall be at least 3 mm. Other thickness has to be agreed and referenced in the standard desig-nation. The foll
49、owing types of hard rubber materials are preferably used (symbols in accordance with ISO 1629): Symbol Name NR Natural rubber IR Isoprene rubber, synthetic SBR Styrene-butadiene rubberNBR Acrylonitrile-butadiene rubber (nitrile rubber) 4.1.2.3 Duroplastic linings Duroplastic linings shall be made of non-cross linked materials in the form of sheeting. The nominal lining thickness shall be at least 3 mm. Other thickness has to be agreed and referenced in the standard designation.
