EN 12092:2001

Adhesives - Determination of viscosity

This European Standard specifies six methods which, experience has shown, are suitable for measuring the viscosity of a wide range of adhesives:
- rotational viscometer method;
- cone and plate viscometer method;
- falling ball viscometer method;
- glass capillary viscometer method;
- flow cup method;
- pressurised extrusion method.
This standard does not intend to describe equipment, which is unique to one manufacturer, rather it describes generic types of viscometer. The instruments described operate on very different principles making it inadvisable to compare results from one type of viscometer with those from another. However, results from different instruments of the same type should be comparable.
NOTE 1  Some modern viscometers incorporate integrated electronic measuring devices and have a high degree of automation. The user will not necessarily have access to (or need to know) full details of an instrument's measuring systems. However, all viscometers are capable of being calibrated and, to conform to this standard, the viscometer used should be calibrated in the appropriate viscosity range before a test. Certified calibration fluids should be used for this purpose and evidence of calibration given with the test results.

Klebstoffe - Bestimmung der Viskosität

Diese Europäische Norm legt sechs Verfahren fest, die, wie die Erfahrung gezeigt hat, zur Messung der
Viskosität in einem großen Klebstoffbereich geeignet sind:
- Rotationsviskosimeter-Verfahren,
- Kegel-Platte-Viskosimeter-Verfahren,
- Kugelfallrohrviskosimeter-Verfahren,
- Glaskapillarviskosimeter-Verfahren,
- Auslaufbecher-Verfahren,
- Extrusions-Verfahren.
Diese Norm beabsichtigt nicht, Instrumente einzelner Hersteller zu beschreiben, sie will vielmehr nur den Ein-satz
gebräuchlicher Viskosimetertypen festlegen. Alle aufgeführten Geräte arbeiten nach unterschiedlichen
Prinzipien. Es ist daher nicht zu empfehlen, die mit einem Viskosimetertyp erhaltenen Ergebnisse mit denen
eines anderen Typs zu vergleichen. Ergebnisse von unterschiedlichen Geräten der gleichen Art sollten
hingegen vergleichbar sein.
ANMERKUNG 1 Einige moderne Viskosimeter verfügen über eingebaute elektronische Messvorrichtungen und einen
hohen Automatisierungsgrad. Der Benutzer wird nicht notwendigerweise (oder benötigt keinen) Zugang zu allen Einzelheiten
des Messsystems im Gerät haben. Alle Viskosimeter sind jedoch kalibrierfähig und jedes verwendete Viskosimeter sollte
zur Übereinstimmung mit dieser Norm im festgelegten Bereich vor einer Prüfung kalibriert werden. Zu diesem Zweck soll-ten
nur zertifizierte Kalibrierflüssigkeiten verwendet und Angaben zur Eichung mit den Prüfergebnissen vermerkt werden.
ANMERKUNG 2 Die Eigenschaften vieler Klebstoffe reagieren gegenüber Prüfbedingungen sehr empfindlich. Es ist
daher wichtig, dass der Prüfbericht umfassende Informationen über die Ausführung der Prüfung enthält.

Adhésifs - Détermination de la viscosité

La présente Norme européenne spécifie six méthodes qui, comme l'expérience l'a prouvé, conviennent pour la mesure de la viscosité d'une large gamme d'adhésifs :
¾ une méthode à viscosimètre rotatif ;
¾ une méthode à viscosimètre cône/plan ;
¾ une méthode à viscosimètre à chute de bille ;
¾ une méthode à viscosimètre à capillaire en verre ;
¾ une méthode à viscosimètre à coupe d'écoulement ;
¾ une méthode pour extrusion sous pression.
La présente norme cherche moins à décrire un équipement, qui varie selon les fabricants, que des grands types de viscosimètres. Les instruments décrits fonctionnent selon des principes très différents, ce qui rend impossible toute comparaison des résultats entre les différents types de viscosimètres. Il convient cependant de comparer les résultats de différents instruments du même type.
NOTE 1   Certains viscosimètres modernes intègrent des appareils de mesure électroniques et sont fortement automatisés. Il se peut donc que l'utilisateur n'ait pas accès à tous les détails concernant le système de mesure de l'instrument (ou n'ait pas besoin de les connaître). Tous les viscosimètres peuvent cependant être étalonnés et, pour être conformes à la présente norme, il convient que les viscosimètres utilisés soient étalonnés avant essai dans la plage de viscosité appropriée. Pour ce faire, il convient d'utiliser des fluides d'étalonnage certifiés et la preuve de l'étalonnage fournit avec les résultats de l'essai.
NOTE 2   Les propriétés de beaucoup d'adhésifs sont très sensibles aux conditions d'essai. Il est donc important que le rapport d'essai contienne des informations détaillées sur la conduite de l'essai.

Lepila - Določevanje viskoznosti

General Information

• Status: Published
• Publication Date: 23-Oct-2001
• Withdrawal Date: 29-Apr-2002
• ICS: 83.180 - Adhesives
• Technical Committee: CEN/TC 193 - Adhesives
• Drafting Committee: CEN/TC 193/WG 1 - General terminology - General physical and chemical tests
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 10-Jul-2023
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 12092:2002 - Adhesives - Determination of viscosity

Overview

EN 12092:2001 is a comprehensive European Standard established by the CEN Technical Committee on Adhesives. This standard specifies six reliable and widely accepted methods for determining the viscosity of adhesives. Viscosity measurement is crucial for quality control, product development, and ensuring consistent adhesive performance across applications. The standard focuses on generic types of viscometers, steering clear of equipment specific to any single manufacturer, and emphasizes the importance of proper calibration and adherence to test conditions.

Key Topics

• Viscosity Measurement Methods: EN 12092:2001 outlines six standardized methods suitable for different adhesive types and viscosities:

  • Rotational viscometer method
  • Cone and plate viscometer method
  • Falling ball viscometer method
  • Glass capillary viscometer method
  • Flow cup method
  • Pressurised extrusion method

• Calibration Requirements: Each viscometer used must be calibrated in the appropriate viscosity range with certified calibration fluids to ensure accuracy and reproducibility of results.

• Test Conditions: The standard stresses maintaining controlled temperatures during tests (usually 23 ± 0.5 °C or as specified), preparation of adhesive samples per related standards (like EN 1066 and EN 1067), and conducting duplicate tests for result reliability.

• Non-Comparability Across Methods: Results from different types of viscometers should not be directly compared due to differing operational principles; however, results from the same type of viscometers are expected to be comparable.

• Safety: Users of this standard must comply with normal laboratory safety practices and relevant regional regulations concerning chemical handling.

Applications

• Quality Control in Adhesive Manufacturing: Monitoring viscosity helps manufacturers ensure batch-to-batch consistency and optimize adhesive formulation characteristics.

• Product Development: Engineers and researchers rely on precise viscosity measurements to develop adhesives with specific flow and application properties, including Newtonian and non-Newtonian adhesives.

• Application Performance: Viscosity greatly affects the adhesive’s spreadability, wetting, and curing behaviors - critical for industries like automotive, packaging, building, and electronics.

• Process Control: On-site viscosity testing allows for real-time quality control in production lines, optimizing adhesive application processes such as extrusion, coating, or spraying.

• Regulatory Compliance: Conforming to EN 12092:2001 supports compliance with European regulations guiding adhesive characterization and testing practices.

Related Standards

EN 12092:2001 references and complements several key standards to ensure comprehensive adhesive testing protocols:

• EN 923 - Adhesives: Terms and definitions
• EN 1066 - Adhesives: Sampling methods
• EN 1067 - Adhesives: Preparation of samples for testing
• EN ISO 2431 - Paints and varnishes: Flow time determination using flow cups
• EN ISO 2555 - Plastics: Determination of apparent viscosity by rotational viscometer (Brookfield test)
• EN ISO 3104 - Petroleum products: Kinematic viscosity determination
• EN ISO 3219 - Plastics: Viscosity measurement using rotational viscometers
• ISO/DIS 12058-2 - Plastics: Falling ball viscometer method

Summary

EN 12092:2001 delivers a standardized, thorough approach for adhesive viscosity determination, essential for ensuring adhesive efficacy across diverse industrial applications. By specifying multiple test methods and emphasizing calibration and reporting accuracy, this standard enhances consistency and reliability in adhesive testing-key for manufacturers, researchers, and quality assurance personnel seeking precise viscosity measurement techniques aligned with industry best practices.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Klebstoffe - Bestimmung der ViskositätAdhésifs - Détermination de la viscositéAdhesives - Determination of viscosity83.180LepilaAdhesivesICS:Ta slovenski standard je istoveten z:EN 12092:2001SIST EN 12092:2002en01-september-2002SIST EN 12092:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12092October 2001ICS 83.180English versionAdhesives - Determination of viscosityAdhésifs - Détermination de la viscositéKlebstoffe - Bestimmung der ViskositätThis European Standard was approved by CEN on 30 September 2001.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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12092:2001 ESIST EN 12092:2002

Dynamic and kinematic viscosity. Definition and calculation.12SIST EN 12092:2002

Some modern viscometers incorporate integrated electronic measuring devices and have a high degree of automation.The user will not necessarily have access to (or need to know) full details of an instruments measuring systems. However, allviscometers are capable of being calibrated and, to conform to this standard, the viscometer used should be calibrated in theappropriate viscosity range before a test. Certified calibration fluids should be used for this purpose and evidence of calibrationgiven with the test results.NOTE 2
The properties of many adhesives are very sensitive to test conditions. It is important therefore that the test reportcontains comprehensive information on the conduct of the test.2 Normative referencesThis European Standard incorporates by dated or undated reference provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this Europeanstandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 923Adhesives — Terms and definitions.EN 1066Adhesives – Sampling.EN 1067Adhesives — Determination and preparation of samples fortesting.EN ISO 2431Paints and varnishes — Determination of flow time by use of flowcups (ISO 2431:1993, including Technical corrgendum 1:1994).EN ISO 2555Plastics — Resins in the liquid state or as emulsions ordispersions — Determination of apparent viscosity by theBrookfield test method (ISO 2555:1989).EN ISO 3104Petroleum products — Transparent and opaque liquids —Determination of kinematic viscosity and calculation of dynamicviscosity (ISO 3104:1994).SIST EN 12092:2002
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