EN 1965-2:2011
(Main)Structural adhesives - Corrosion - Part 2: Determination and classification of corrosion to a brass substrate
Structural adhesives - Corrosion - Part 2: Determination and classification of corrosion to a brass substrate
This European Standard describes a method to determine the ability of an adhesive to corrode a brass substrate under the influence of an applied voltage and high humidity. The temperature, humidity, ageing period and applied voltage are chosen to ensure the maximum differentiation between the corrosivity of different adhesives and are not intended to represent any particular service condition.
Strukturklebstoffe - Korrosion - Teil 2: Bestimmung und Klassifikation der Korrosion eines Messingmaterials
Diese Europäische Norm beschreibt ein Verfahren zur Bestimmung der Fähigkeit eines Klebstoffes, ein Messingmaterial bei angelegter Spannung und hoher Luftfeuchte zu korrodieren. Die Temperatur, die Feuchtigkeit, die Zeitspanne der Alterung und die angelegte Spannung sind deshalb so gewählt, um eine maximale Unterscheidung zwischen der Korrosivität unterschiedlicher Klebstoffe sicherzustellen, und sollen nicht dazu dienen, unterschiedliche Anwendungsbedingungen nachzustellen.
Adhésifs structuraux - Corrosion - Partie 2: Détermination et classification de la corrosion d’un substrat en laiton
La présente Norme européenne décrit une méthode permettant de déterminer l'aptitude d'un adhésif à corroder un substrat en laiton sous une certaine tension et dans des conditions de forte humidité. La température, l'humidité, la durée du vieillissement et la tension appliquée sont choisies de façon à différencier de manière optimale la corrosivité de plusieurs adhésifs, et elles ne sont pas destinées à représenter des conditions particulières d’utilisation.
Konstrukcijska lepila - Korozija - 2. del: Ugotavljanje in razvrstitev korozije na medeninasti preskusni podlagi
Ta evropski standard opisuje metodo ugotavljanja zmožnosti lepila za korozijo na medeninasti preskusni podlagi pod vplivom uporabljene napetosti in visoke vlage. Temperatura, vlaga, čas staranja in uporabljena napetost so izbrani tako, da zagotavljajo maksimalno diferenciacijo med korozivnostjo različnih lepil in niso namenjeni predstavljanju katerega koli posebnega pogoja delovanja.
General Information
- Status
- Published
- Publication Date
- 10-May-2011
- Withdrawal Date
- 29-Nov-2011
- Technical Committee
- CEN/TC 193 - Adhesives
- Drafting Committee
- CEN/TC 193/WG 2 - Structural adhesives
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 12-Jul-2023
- Completion Date
- 14-Apr-2025
- Directive
- 89/106/EEC - Construction products
Relations
- Effective Date
- 04-Jun-2011
Overview
EN 1965-2:2011 (CEN) defines a laboratory method to determine and classify the ability of structural adhesives to induce corrosion of a brass substrate. The procedure evaluates electrolytic attack by exposing adhesive-bonded brass foils to a controlled hot/humid atmosphere while applying a direct current (DC) voltage. The test is designed to maximize differentiation between adhesives and is not intended to represent any specific service condition.
Key test features from the standard:
- Environment: high humidity (92 %) at approximately 42 °C in a conditioning chamber (EN ISO 291)
- Electrical stress: direct current source at (100 ± 5) V
- Duration: four days of ageing under the specified conditions
- Substrate: 0.10 mm thick brass foil (Ms63F45 or Ms63F55) of 10 mm width
- Surface preparation: degrease, etch with the specified etching solution, rinse and dry
Key Topics
Principle: Two brass electrodes contact a cured adhesive sample; DC voltage promotes electrolytic corrosion. After ageing, brass foils are examined for tarnishing, dezincification and green corrosion products.
Materials and apparatus: The standard lists solvents (e.g., isopropanol), brass foil specifications, an etching solution composition, a conditioning chamber and a DC source with low ripple (≤ 1 % alternating component).
Preparation and procedure: Brass foils are degreased, etched, rinsed and dried; assembled into inert clamping fixtures to ensure ~0.1 MPa contact pressure; preheated to avoid condensation before placement in the humidity chamber; and aged for four days with 100 V applied.
Assessment and grading: Visual examination with a 2.5× magnifier grades plus-pole and minus-pole changes (including the start or progression of dezincification and tarnishing) using the grading scheme in Annex A. The test report must record substrate preparation, substrate type/thickness and discolouration grades.
Applications
EN 1965-2:2011 is primarily useful for:
- Material selection: comparing corrosivity of alternative structural adhesives against brass substrates.
- Quality control: batch checks to detect adhesive formulations that cause accelerated electrolytic corrosion.
- Product development: screening adhesive chemistries for compatibility with copper‑zinc alloys (brass) under aggressive laboratory conditions.
This test helps organizations manage the risk of adhesive-induced electrolytic corrosion in bonded assemblies where brass is present, while noting the test conditions are deliberately severe to highlight differences between adhesives rather than to model specific field environments.
Related Standards
- EN 923:2005+A1:2008 - Adhesives: terms and definitions referenced in this standard
- EN ISO 291 - Standard atmospheres for conditioning and testing
- EN ISO 8044:1999 - Corrosion of metals and alloys: basic terms and definitions
- ISO 426 (all parts) - Wrought copper‑zinc alloys (for foil dimensions and forms)
For implementation, follow the reporting requirements in Clause 10 and the grading tables in Annex A of EN 1965-2:2011 to support reproducible, auditable assessments for product selection and QC.
Frequently Asked Questions
EN 1965-2:2011 is a standard published by the European Committee for Standardization (CEN). Its full title is "Structural adhesives - Corrosion - Part 2: Determination and classification of corrosion to a brass substrate". This standard covers: This European Standard describes a method to determine the ability of an adhesive to corrode a brass substrate under the influence of an applied voltage and high humidity. The temperature, humidity, ageing period and applied voltage are chosen to ensure the maximum differentiation between the corrosivity of different adhesives and are not intended to represent any particular service condition.
This European Standard describes a method to determine the ability of an adhesive to corrode a brass substrate under the influence of an applied voltage and high humidity. The temperature, humidity, ageing period and applied voltage are chosen to ensure the maximum differentiation between the corrosivity of different adhesives and are not intended to represent any particular service condition.
EN 1965-2:2011 is classified under the following ICS (International Classification for Standards) categories: 77.060 - Corrosion of metals; 83.180 - Adhesives. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1965-2:2011 has the following relationships with other standards: It is inter standard links to EN 1965-2:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1965-2:2011 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 1965-2:2011 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Konstrukcijska lepila - Korozija - 2. del: Ugotavljanje in razvrstitev korozije na medeninasti preskusni podlagiStrukturklebstoffe - Korrosion - Teil 2: Bestimmung und Klassifikation der Korrosion eines MessingmaterialsAdhésifs structuraux - Corrosion - Partie 2: Détermination et classification de la corrosion d’un substrat en laitonStructural adhesives - Corrosion - Part 2: Determination and classification of corrosion to a brass substrate83.180LepilaAdhesives77.060Korozija kovinCorrosion of metalsICS:Ta slovenski standard je istoveten z:EN 1965-2:2011SIST EN 1965-2:2011en,fr,de01-november-2011SIST EN 1965-2:2011SLOVENSKI
STANDARDSIST EN 1965-2:20021DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1965-2
May 2011 ICS 77.060; 83.180 Supersedes EN 1965-2:2001English Version
Structural adhesives - Corrosion - Part 2: Determination and classification of corrosion to a brass substrate
Adhésifs structuraux - Corrosion - Partie 2: Détermination et classification de la corrosion d'un substrat en laiton
Strukturklebstoffe - Korrosion - Teil 2: Bestimmung und Klassifikation der Korrosion eines Messingmaterials This European Standard was approved by CEN on 10 March 2011.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1965-2:2011: ESIST EN 1965-2:2011
Gradings for the appearance of plus pole and minus pole test foils at the surface of contact at the test specimen .9Bibliography . 10 SIST EN 1965-2:2011
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