SIST EN 14879-4:2009
Organic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media - Part 4: Linings on metallic components
Organic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media - Part 4: Linings on metallic components
This document describes the requirements for and methods of testing 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
partners )).
The standard applies to linings which serve 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 particular 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 (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, pipes) (subsequently named thermo-plastic lining), to be applied in the workshop or on site.
The standard specifies the requirements, acceptance inspection, packaging, transport, storage, installation and external finish of organic linings for metallic materials.
The tests described in this standard are intended for verification 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.
Beschichtungen und Auskleidungen aus organischen Werkstoffen zum Schutz von industriellen Anlagen gegen Korrosion durch aggressive Medien - Teil 4: Auskleidungen für Bauteile aus metallischen Werkstoffen
Systemes de revetements organiques de peinture et autres revetements rapportés pour la protection des appareils et installations industriels contre la corrosion par des milieux agressifs - Partie 4: Revetements rapportés pour composants métalliques
Le présent document décrit les exigences et méthodes d’essai des revetements rapportés organiques appliqués sur des équipements métalliques de l’industrie chimique, entrant au contact de substances chimiques. Les exigences spécifiées dans la présente norme pourront etre utilisées a des fins de contrôle qualité (selon les clauses du contrat prévues par les parties). )).
Cette norme est applicable aux revetements rapportés destinés a l’un au moins des usages suivants :
?protéger le composant contre les effets néfastes des substances corrosives ;
?protéger les eaux (par exemple, les nappes phréatiques) des substances dangereuses ;
?protéger l’appareil contre la contamination par des composants provenant des matériaux du subjectile ;
?obtenir une qualité de surface spécifique.
La présente norme est applicable aux récipients, appareils, tuyaux et autres composants utilisés dans les usines composés de matériaux de subjectile de type métallique qui sont au contact de milieux et sont dotés d’une protection de surface composée de :
a) revetement de caoutchouc naturel ou synthétique préfabriqué (dénommé ci-apres revetement rapporté de caoutchouc), a appliquer dans l’atelier ou sur le site ;
b) revetement préfabriqué a base de résines phénol-formaldéhyde ou époxy (dénommé ci-apres revetement rapporté thermodurcissable), a appliquer uniquement dans l’atelier ;
c) produits thermoplastiques préfabriqués (feuilles, revetement, planches, tuyaux, par exemple) (dénommés ci-apres revetement rapporté thermoplastique), applicables dans l’atelier ou sur le site.
La présente norme spécifie les exigences, l’inspection de réception, l’emballage, le transport, le stockage, l’installation, ainsi que la finition extérieure des revetements rapportés organiques pour les matériaux métalliques.
Sistemi organskih premazov in prevlek za protikorozijsko zaščito industrijskih naprav in obratov v kemijsko agresivnih pogojih - 4. del: Prevleke na kovinskih delih
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LQGXVWULMVNLKGHOLKBeschichtungen und Auskleidungen aus organischen Werkstoffen zum Schutz von industriellen Anlagen gegen Korrosion durch aggressive Medien - Teil 4: Auskleidungen für Bauteile aus metallischen WerkstoffenSystemes de revetements organiques de peinture et autres revetements rapportés pour la protection des appareils et installations industriels contre la corrosion par des milieux agressifs - Partie 4: Revetements rapportés pour composants métalliquesOrganic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media - Part 4: Linings on metallic components25.220.60Organske prevlekeOrganic coatingsICS:Ta slovenski standard je istoveten z:EN 14879-4:2007SIST EN 14879-4:2009en,fr,de01-januar-2009SIST EN 14879-4:2009SLOVENSKI
STANDARD
SIST EN 14879-4:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14879-4August 2007ICS 25.220.60 English VersionOrganic coating systems and linings for protection of industrialapparatus and plants against corrosion caused by aggressivemedia - Part 4: Linings on metallic componentsSystèmes de revêtements organiques de peinture et autresrevêtements rapportés pour la protection des appareils etinstallations industriels contre la corrosion par des milieuxagressifs - Partie 4: Revêtements rapportés pourcomposants métalliquesBeschichtungen und Auskleidungen aus organischenWerkstoffen zum Schutz von industriellen Anlagen gegenKorrosion durch aggressive Medien - Teil 4: Auskleidungenfür 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 which 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 Standard 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 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14879-4:2007: ESIST EN 14879-4:2009
EN 14879-4:2007 (E) 2 Contents Page Foreword.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.7 4 General.7 4.1 Materials.7 4.1.1 Metallic substrates and semi-finished products.7 4.1.2 Linings.7 4.2 Selection criteria.9 4.2.1 General.9 4.2.2 Aggressive substances.10 4.2.3 Type and frequency of fluid loading.12 4.2.4 Thermal loading.12 4.2.5 Changes in temperature.12 4.2.6 Mechanical loading.13 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 and preparation of the substrate.14 4.5.3 Preparation and application of pre-cut parts of the semi-finished products.14 4.5.4 Lining joints.15 4.5.5 Thermal post treatment.17 4.6 Lined component.17 5 Repair of defects.17 6 Designations.17 7 Packaging, transport, storage and installation.18 7.1 General.18 7.2 Packaging and transport.18 7.3 Storage.18 7.4 Installation.19 8 External finish of surfaces not to be lined.19 9 Testing.19 9.1 General.19 9.2 Basic requirements.19 9.2.1 Resistance to the service fluid.19 9.2.2 Cleaning and neutralizing processes.19 9.2.3 Adhesive strength.19 9.2.4 Capability of dissipating electrostatic charges.19 9.2.5 Additional requirements.20 9.3 Testing of suitability.20 9.3.1 General.20 9.3.2 Testing of resistance and tightness to the service fluid.21 9.3.3 Testing of adhesive strength.21 9.3.4 Testing of capability to dissipate electrostatic charges.22 9.4 Acceptance inspection.22 9.4.1 General.22 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 SIST EN 14879-4:2009
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).27 9.4.8 Destructive testing of weld seams (special test).27 9.4.9 Test report.27 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, halogenated butyl rubber (media list II).29 B.2.2 Chloroprene rubber (media list III).29 B.3 Test media for the media lists.29 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 the 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 equipment.35 D.2.2 Test procedure.35 D.2.3 Test report.36 D.3 Measurement of dissipation resistance to earth on the completely applied lining.36 D.3.1 Test equipment.36 D.3.2 Preparation of the lining.36 D.3.3 Procedure.36 D.3.4 Test report.37 Annex E (informative)
Sample form for acceptance inspection report.38 Annex F (informative)
A–deviations.39 Bibliography.40
SIST EN 14879-4:2009
EN 14879-4:2007 (E) 4 Foreword This document (EN 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 status 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 plants 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 Part 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, 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 14879-4:2009
EN 14879-4:2007 (E) 5 1 Scope This document describes the requirements for and methods of testing 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 serve 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 particular 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 (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, pipes) (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 verification 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 referenced 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 means 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 thermoplastic 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. SIST EN 14879-4:2009
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 (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 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 blast-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 procedure (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 insulating 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 of liquids
SIST EN 14879-4:2009
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 Metallic 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 agreement 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 show 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 products 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 Isoprene 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 rubber NBR Acrylonitrile-butadiene rubber (nitrile rubber) SIST EN 14879-4:2009
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 following 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 rubber NBR 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. The following types of resin based lining materials are commonly used (symbols in accordance with EN ISO 1043-1): Symbol Name PF Phenol-formaldehyde resin EP Epoxy resin 4.1.2.4 Thermoplastic linings Prefabricated thermoplastic products shall be used as lining materials. Preferably, the lining thickness should be 3 mm. Other thickness has to be agreed and referenced in the standard designation. The following thermoplastics are commonly used (symbols in accordance with EN ISO 1043-1): Symbol Name PVC-U Unplasticised poly(vinyl chloride) PVC-P Plasticised poly(vinyl chloride) PP Polypropylene PTFE Polytetrafluoroethylene MFA/PFA Perfluoro alkoxy alkane resins FEP Perfluoro(ethylene-propylene) plastic E/CTFE Ethylene/chlorotrifluoroethylene PVDF Poly(vinylidene fluoride) PIB Polyisobutene PEEK Polyetheretherketone SIST EN 14879-4:2009
EN 14879-4:2007 (E) 9 4.1.2.5 Composite thermoplastic/rubber lining In accordance with 4.1.2.2 and 4.1.2.4. The nominal thickness of the composite lining shall be at least 4 mm. Bonding between the individual materi-als shall be permanent. Other thickness has to be agreed and referenced in the standard designation. 4.1.2.6 Specific requirements for lining materials 4.1.2.6.1 Resistance to the service fluid The performance of the lining shall not be impaired when it is subjected to stresses due to contact with the service fluid. Since linings are usually subjected to a variety of stresses, additional measures such as thermal insulation or a combination of different protective layers, e.g. brick lining, may be necessary to ensure their proper performance. 4.1.2.6.2 Physical properties The values required for the physical properties of the selected lining material, e.g. density, tensile strength, elongation at fracture, modulus of elasticity, softening point and hardness, shall be specified as appropriate for the intended application and be verified as part of the quality control. 4.1.2.6.3 Characteristics of lining material Semi-finished products to be used for linings shall meet the requirements agreed upon (see 4.1.2.1). Multilayer materials shall be fully bonded interfacial and there shall be sufficient adherence between the
individual layers. 4.1.2.6.4 Thickness of semi-finished products to be used for lining The thickness of semi-finished products to be applied as linings shall be equal to the agreed nominal thick-ness and the permitted deviation shall be ± 10 %. 4.1.2.6.5 Adhesion system Adequate and long time adhesion of the lining to the substrate over the entire area shall be ensured. The
adhesion system to be applied shall therefore be selected in consideration of the requirement for the lining material, except for linings applied without adhesion system, e.g. by "loose shirt" technique. 4.1.2.6.6 Additional requirements for the lining material Other relevant requirements for the lining material, e.g. physiological safety, resistance against fluid based tension tear resistance, resistance to radiation, electrical conductivity and decontamination properties, shall be subject to agreement, if necessary. 4.2
Selection criteria 4.2.1 General The stress to be encountered by a protective lining shall be known before the requirements for it can be speci-fied. For the scope or this standard, the stress types detailed in 4.2.2 to 4.2.8 are the most relevant. Where necessary, grades have been used to describe different levels of stress. SIST EN 14879-4:2009
EN 14879-4:2007 (E) 10 4.2.2 Aggressive substances Aggressive substances or water pollutants may occur as solids or fluids. Their aggressive action on metallic material usually occurs when they are in a liquid state (e.g. aqueous solutions or condensates). The sub-stances may occur in their pure state, or as mixtures and may attack the metallic material at varying intervals. These substances shall be designated using the Geneva nomenclature, IUPAC2) nomenclature or CAS3) number. They may also be designated by trivial names which have become established in the literature. Con-centrations and any changes to these shall be given as a percentage by mass or volume, or as g/l, g/kg, mol/l etc. The pH value shall also be given for aqueous solutions. All constituents, including traces and impurities, shall be named, even if they do not attack metallic materials. Successive exposure shall be represented accordingly. Table 1 lists chemicals which are commonly used, having the properties mentioned above.
2) International Union of Pure and Applied Chemistry. 3) Chemical Abstract Service. SIST EN 14879-4:2009
EN 14879-4:2007 (E) 11 Table 1 — Classification of frequently (commonly) used chemicals Type of chemical Examples I. Inorganic chemicals Inorganic, non-oxidizing acids HCl H2SO4 H3PO4 Hydrochloric acid Sulfuric acid, up to 70 %
Phosphoric acid Inorganic, oxidizing acids HNO3 H2SO4 CrO3, H2CrO4 HClO3 Nitric acid Sulfuric acid, over 70 %
Chromic acid Chloric acid Inorganic acids, dissolving SiO2 HF H2SiF6 HBF4 Hydrofluoric acid Hexafluorosilicic acid (containing HF) Tetrafluoroboric acid (containing HF) Salts NaCl FeSO4 Na2CO3 Sodium chloride Iron (II) sulfate Sodium carbonate Bases NaOH KOH CaO, Ca(OH)2NH4OH
Sodium hydroxide Potassium hydroxide Calcium oxide Calcium hydroxide
Ammonia solution (Ammonium hydroxide solu-tion) Oxidizing bases NaOCl Sodium hypochlorite II. Organic chemicals Organic acids HCOOH CH3COOH CH2ClCOOH (COOH)2 CH3CHOHCOOH Formic acid Acetic acid Chloroacetic acid Oxalic acid Lactic acid Aliphatic hydrocarbons C6H14 C8H18 Hexane Octane
...
SLOVENSKI oSIST prEN 14879-4:2005
PREDSTANDARD
november 2005
Organic coating systems and linings for protection of industrial apparatus and
plants against corrosion caused by aggressive media – Part 4: Linings on metallic
components
ICS 25.220.60 Referenčna številka
oSIST prEN 14879-4:2005(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD
DRAFT
prEN 14879-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2005
ICS
English Version
Organic coating systems and linings for protection of industrial
apparatus and plants against corrosion caused by aggressive
media - Part 4: Linings on metallic components
Organische Beschichtungs- und Auskleidungssysteme zum
Schutz von industriellen Anlagen gegen Korrosion durch
aggressive Medien - Teil 4: Auskleidungen auf metallischen
Untergründen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/SS C02.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14879-4:2005: E
worldwide for CEN national Members.
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prEN 14879-4:2005 (E)
Contents Page
1 Scope.5
2 Normative references.5
3 Terms and definitions .7
4 General.7
4.1 Materials.7
4.1.1 Metallic substrates and semi-finished products .7
4.1.2 Linings.7
4.2 Selection criteria.9
4.2.1 General.9
4.2.2 Aggressive substances.10
4.2.3 Type and frequency of fluid loading.12
4.2.4 Thermal loading.12
4.2.5 Changes in temperature.12
4.2.6 Mechanical loading.13
4.2.7 Weather factors.13
4.2.8 Additional requirements.13
4.3 Load profile.13
4.4 Design of component .13
4.5 Manufacture of the lining .14
4.5.1 Environmental conditions.14
4.5.2 Surface condition and preparation of the substrate.14
4.5.3 Preparation and application of pre-cut parts of the semi-finished products .14
4.5.4 Lining joints.15
4.5.5 Thermal post treatment.17
4.6 Lined component.17
5 Repair of defects.17
6 Designations.17
7 Packaging, transport, storage and installation .18
7.1 General.18
7.2 Packaging and transport.18
7.3 Storage.18
7.4 Installation.19
8 External finish of surfaces not to be lined .19
9 Testing.19
9.1 General.19
9.2 Basic requirements.19
9.2.1 Resistance to the service fluid.19
9.2.2 Cleaning and neutralizing processes .19
9.2.3 Adhesive strength.19
9.2.4 Capability of dissipating electrostatic charges .19
9.2.5 Additional requirements.20
9.3 Testing of suitability.20
9.3.1 General.20
9.3.2 Testing of resistance and tightness to the service fluid .21
9.3.3 Testing of adhesive strength.21
9.3.4 Testing of capability to dissipate electrostatic charges.22
9.4 Acceptance inspection.22
9.4.1 General.22
9.4.2 Visual inspection.22
9.4.3 Measurement of lining thickness.23
9.4.4 Hardness.24
9.4.5 Adhesion.25
9.4.6 High-voltage testing for tightness .26
9.4.7 Testing of capability to dissipate electrostatic charges (special test).27
2
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prEN 14879-4:2005 (E)
9.4.8 Destructive testing of weld seams (special test) .27
9.4.9 Test report.27
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, halogenated butyl rubber (media list II).29
B.2.2 Polychloroprene rubber (media list III) .29
B.3 Test media for the media lists.29
B.3.1 Media list I (for hard rubber linings).30
B.3.2 Media list II (for butyl rubber, halogenated butyl rubber).31
B.3.3 Media list III (for polychloroprene rubber).31
Annex C (normative) Test fluid groups for verification of suitability for material/media
combinations .32
Annex D (normative) Testing the 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 equipment.35
D.2.2 Test procedure.35
D.2.3 Test report.36
D.3 Measurement of dissipation resistance to earth on the completely applied lining .36
D.3.1 Test equipment.36
D.3.2 Preparation of the lining .36
D.3.3 Procedure.36
D.3.4 Test report.37
Annex E (informative) Sample form for acceptance inspection report .38
3
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prEN 14879-4:2005 (E)
Foreword
This document (prEN 14879-4:2005) has been prepared by Technical Committee CEN/BT/Task Force 130
“Organic 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 document is currently submitted to the CEN Enquiry.
EN 14879 "Organic coating systems and linings for protection of industrial apparatus and plants 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
Part 6: Combined lining with tile and brick layers
The annexes B, C and D are normative, the annexes A and E are informative.
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prEN 14879-4:2005 (E)
1 Scope
This document describes the requirements for and methods of testing 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
1)
partners ).
The standard applies to linings which serve 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 particular 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 (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, pipes) (subsequently named thermo-
plastic lining), to be applied in the workshop or on site.
The standard specifies the requirements, acceptance inspection, packaging, transport, storage, installation
and external finish of organic linings for metallic materials.
The tests described in this standard are intended for verification 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 referenced 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 59:1977-11, Glass reinforced plastics — Measurement of hardness by means of a Barcol impressor
EN 228, Automotive fuels — Unleaded petrol — Requirements and test methods; German version
EN 228:1999
EN 590:2000-02, Automotive fuels — Diesel — Requirements and test methods
EN 977:1997-08, Underground tanks of glass-reinforced plastics (GRP) — Method for one side exposure to
fluids
prEN 13122, Hot gas welding of semifinished products of thermoplastic materials
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.
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prEN 14879-4:2005 (E)
EN 12814 (series), Testing of welded joints of thermoplastics semi-finished products
prEN 14728, Geometric imperfections in thermoplastic welds — Classification
EN 24624:1992-09, Paints and varnishes — Pull-off test for adhesion (ISO 4624:1978)
EN ISO 291, Plastics — Standard atmospheres for conditioning and testing (ISO 291:1997)
EN ISO 1043-1, Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special char-
acteristics (ISO 1043-1:2001)
EN ISO 2039-1:1996-02, Plastics — Determination of hardness — Part 1: Ball indentation method
(ISO 2039-1:1993)
EN ISO 2178:1995-04, Non-magnetic coatings on magnetic substrates — Measurement of coating thick-
ness — Magnetic method (ISO 2178:1982)
EN ISO 2360:1995-04, Non-conductive coatings on non-magnetic basis metals — Measurement of coating
thickness — Eddy current method (ISO 2360:1982)
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 blast-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 procedure (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 (VDE 0303 Part 30):1993-12, Methods of test for insulating materials for electrical purposes —
Volume resistivity and surface resistivity of solid electrical insulating materials (IEC 60093:1980)
IEC 60167 (VDE 0303 Teil 31), Methods of test for insulating materials for electrical purposes — Insulation
resistance of solid materials (IEC 60167:1964)
ISO 813, Rubber, vulcanized or thermoplastic — Determination of adhesion to a rigid substrate — 90° peel
method
ISO 868, Plastic and Ebonite — Determination of indentation hardness by means of a durometer (Shore hard-
ness)
ISO 1629, Rubber and lattices — Nomenclature; identical with ISO 1629:1987
ISO 1817, Rubber vulcanised — Determination of the effect of liquids
ISO 4433-1, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 1: Immersion
test method
ISO 4433-2, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 2: Polyolefin
pipes
ISO 4433-3, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 3: Unplasticized
poly(vinyl chloride) (PVC-U), high-impact poly(vinyl chloride) (PVC-HI) and chlorinated poly(vinyl chloride)
(PVC-C) pipes
ISO 4433-4, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 4:
Poly(vinylidene fluoride) (PVDF) pipes
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prEN 14879-4:2005 (E)
3 Terms and definitions
For the purposes of this European Standard, the following term and definitions in addition to those of
EN 14879-1 apply.
3.1
Loose lining
Lining partly fixed mechanically but not glued to the surface (loose shirt lining).
4 General
4.1 Materials
4.1.1 Metallic 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 agreement between the
user/customer and the manufacturer. Verification of suitability shall be performed in accordance with section 8.
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 show 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 products shall be used as lining materials.
The nominal lining thickness should be 4 mm. Other nominal thickness shall be subject to agreement.
The following types of soft rubber materials are commonly used (symbols in accordance with ISO 1629):
Symbol Name
NR Natural rubber
IR Isoprene rubber, synthetic
CR Polychloroprene rubber
IIR Isobutene-isoprene rubber (butyl rubber)
BIIR Bromo-isobutene-isoprene rubber
CIIR Chloro-isobutene-isoprene rubber
CSM Chlorosulfonylpolyethylene
SBR Styrene-butadiene rubber
NBR Acrylonitrile-butadiene rubber (nitrile rubber)
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prEN 14879-4:2005 (E)
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.
The following 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 rubber
NBR 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.
The following types of resin based lining materials are commonly used (symbols in accordance with
EN ISO 1043-1):
Symbol Name
PF Phenol formaldehyde resin
EP Epoxy resin
4.1.2.4 Thermoplastic linings
Prefabricated thermoplastic products shall be used as lining materials. Preferably, the lining thickness shall be
3 mm.
The following thermoplastics are commonly used (symbols in accordance with EN ISO 1043-1):
Symbol Name
PVC-U Unplasticised polyvinyl chloride
PVC-P Plasticised polyvinyl chloride
PP Polypropylene
PTFE Polytetrafluoroethylene
MFA/PFA Perfluoro-alkoxyalkane polymers
FEP Tetrafluoroethylene/hexafluoropropylene
E/CTFE Ethylene/chlorotrifluoroethylene
PVDF Polyvinylidene fluoride
PIB Polyisobutene
PEEK Polyetheresterketone
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prEN 14879-4:2005 (E)
4.1.2.5 Composite thermoplastic/rubber lining
In accordance with 4.1.2.2 and 4.1.2.4.
The nominal thickness of the composite lining shall be at least 4 mm. Bonding between the individual materi-
als shall be permanent.
4.1.2.6 Specific requirements for lining materials
4.1.2.6.1 Resistance to the service fluid
The performance of the lining shall not be impaired when it is subjected to stresses due to contact with the
service fluid. Since linings are usually subjected to a variety of stresses, additional measures such as thermal
insulation or a combination of different protective layers, e.g. brick lining, may be necessary to ensure their
proper performance.
4.1.2.6.2 Physical properties
The values required for the physical properties of the selected lining material, e.g. density, tensile strength,
elongation at fracture, modulus of elasticity, softening point and hardness, shall be specified as appropriate for
the intended application and shall be complied with at the time of delivery.
4.1.2.6.3 Characteristics of lining material
Semi-finished products to be used for linings shall meet the requirements agreed upon (see 4.1.2.1).
Multilayer materials shall be fully bonded interfacial and there shall be sufficient adherence between the
individual layers.
4.1.2.6.4 Thickness of semi-finished products to be used for lining
The thickness of semi-finished products to be applied as linings shall be equal to the agreed nominal thick-
ness and the permitted deviation shall be ± 10 %.
4.1.2.6.5 Adhesion system
Adequate and long time adhesion of the lining to the substrate over the entire area shall be ensured. The
adhesion system to be applied shall therefore be selected in consideration of the requirement for the lining
material, except for linings applied without adhesion system, e.g. by "loose shirt" technique.
4.1.2.6.6 Additional requirements for the lining material
Other relevant requirements for the lining material, e.g. physiological safety, resistance to radiation, electrical
conductivity and decontamination properties) shall be subject to agreement, if necessary.
4.2 Selection criteria
4.2.1 General
The stress to be encountered by a protective lining must be known before the requirements for it can be speci-
fied. For the scope or this standard, the stress types detailed in subclauses 4.2.2 to 4.2.8 are the most rele-
vant. Where necessary, grades have been used to describe different levels of stress.
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prEN 14879-4:2005 (E)
4.2.2 Aggressive substances
Aggressive substances or water pollutants may occur as solids or fluids. Their aggressive action on metallic
material usually occurs when they are in a liquid state (e.g. aqueous solutions or condensates). The sub-
stances may occur in their pure state, or as mixtures and may attack the concrete at varying intervals.
2) 3)
These substances shall be designated using the Geneva nomenclature, IUPAC nomenclature or CAS
number. They may also be designated by trivial names which have become established in the literature. Con-
centrations and any changes to these shall be given as a percentage by mass or volume, or as g/l, g/kg, mol/l
etc. The pH value shall also be given for aqueous solutions.
All constituents, including traces and impurities, shall be named, even if they do not attack metallic materials.
Successive exposure shall be represented accordingly.
Table 1 lists chemicals which are commonly used, having the properties mentioned above.
2) International Union of Pure and Applied Chemistry.
3) Chemical Abstract Service.
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prEN 14879-4:2005 (E)
Table 1 — Classification of frequently (commonly) used chemicals
Type of chemical Examples
I. Inorganic chemicals
Inorganic, non-oxidizing acids HCl Hydrochloric acid
H SO Sulfuric acid, up to 70 %
2 4
H PO Phosphoric acid
3 4
Inorganic, oxidizing acids HNO Nitric acid
3
H2SO4 Sulfuric acid, over 70 %
CrO , H CrO Chromic acid
3 2 4
HClO3 Chloric acid
HF Hydrofluoric acid
Inorganic acids, dissolving SiO
2
H SiF Hexafluorosilicic acid (containing HF)
2 6
HBF Tetrafluoroboric acid (containing HF)
4
NaCl Sodium chloride
Salts
FeSO Iron (II) sulfate
4
Na CO Sodium carbonate
2 3
NaOH Sodium hydroxide
Bases
KOH Potassium hydroxide
CaO, Ca(OH)2 Calcium oxide Calcium hy
...
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