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
• Completion Date: 10-Jul-2023
• Ref Project: SIST EN 12092:2002 - Adhesives - Determination of viscosity

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

0,5)°C.6.3.2.4 Start the cone rotating and zero the instrument.6.3.2.5 Stop the rotation and raise the cone to a high position.6.3.2.6 Place a small amount of the adhesive (as specified by the viscometer manufacturer) in the centre of theplate and lower the cone again to the operating position.6.3.2.7 Remove excess adhesive.6.3.2.8 Wait approximately 15 s for the sample to reach the test temperature.6.3.2.9 Start the cone rotating. Allow the reading to reach a steady value and record the reading.6.3.2.10 After each determination carefully clean all components with an appropriate solvent.6.3.3 Expression of resultsCalculate the estimate of viscosity by the method prescribed by the manufacturer of the viscometer.Express the result to three significant figures in units of Pa·s or in mPa·s as appropriate.If required, plot the characteristics viscosity/shear rate curve for the adhesive.6.3.4 Test reportThe test report shall contain, at least, the following information:a) reference to this European Standard;b) identification of the product tested including details of any mixing or other preparations carried out;c) the test temperature;SIST EN 12092:2002
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