SIST EN 12961:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WHPSHUDWXUHKlebstoffe für Leder und Schuhwerkstoffe - Bestimmung der optimalen Aktiviertemperatur und der maximalen Dauer der Aktivierbarkeit von Lösemittel- und DispersionsklebstoffenAdhésifs pour cuir et matériaux pour articles chaussants - Détermination de la température optimale d'activation et de la durée maximale d'activation des adhésifs a base de solvant et en dispersionAdhesives for leather and footwear materials - Determination of optimum activation temperatures and maximum activation life of solvent-based and dispersion adhesives83.180LepilaAdhesives61.060ObuvalaFootwearICS:Ta slovenski standard je istoveten z:EN 12961:2001SIST EN 12961:2002en01-februar-2002SIST EN 12961:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12961March 2001ICS 83.180English versionAdhesives for leather and footwear materials - Determination ofoptimum activation temperatures and maximum activation life ofsolvent-based and dispersion adhesivesAdhésifs pour cuir et matériaux pour articles chaussants -Détermination de la température optimale d'activation et dela durée maximale d'activation des adhésifs à base desolvant et en dispersionKlebstoffe für Leder und Schuhwerkstoffe - Bestimmungder optimalen Aktiviertemperatur und der maximalen Dauerder Aktivierbarkeit von Lösemittel- undDispersionsklebstoffenThis European Standard was approved by CEN on 4 February 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 12961:2001 ESIST EN 12961:2002

Page 2EN 12961:2001ContentsPageForeword.31Scope.42Normative references.43Terms and definitions.44Principle.45Safety.56Adhesive and materials.57Apparatus.58Test pieces.59Procedure.610Evaluation and expression of results.711Test report.8SIST EN 12961:2002

Page 3EN 12961:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 193, "Adhesives", the secretariat ofwhich is held by AENOR.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by September 2001, and conflicting national standards shall be withdrawn at thelatest by September 2001.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.SIST EN 12961:2002

Page 4EN 12961:20011 ScopeThis European Standard specifies the determination of optimum heat activation temperatures and maximumactivation life of solvent-based or dispersion adhesives coated onto adherends, primarily based on therequirements for sole attaching adhesives. Optimum heat activation temperatures and maximum heat activation lifedepend mainly on the type, composition and colour of the adhesive as well as the footwear material used.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 522Adhesives for leather and footwear materials – Bond strength –Minimum requirements and adhesive classificationEN 923Adhesives — Terms and definitionsEN 1066Adhesives —
SamplingEN 1067Adhesives —
Examination and preparation of samples for testingEN 1392Adhesives for leather and footwear materials — Solvent-basedand dispersion adhesives —Test methods for measuring the bondstrength under specified conditionsISO 554Standard atmospheres for conditioning and/or testing —SpecificationsISO 868Plastics and ebonite — Determination of indentation hardness bymeans of a durometer (Shore hardness)3 Terms and definitionsFor the purpose of this standard, the definitions in accordance with EN 923, EN 1392, and the following definitions,apply:3.1optimum activation temperaturesrange of surface temperatures of a heat activated adhesive coat at which a bond is produced which on peel testinghas satisfactory strength with a proportion of non-coalescence of less than 10 %.3.2maximum activation lifelongest time interval, beginning with adhesive application, at the end of which, compared to bonds obtained afterdrying without storing, heat activation at an optimum activation temperature produces bonds of less than 10 %reduction in peel strength with non-coalescence of less than 10%.4 PrincipleThe surfaces of the upper and the sole materials used for testing are treated specifically to the type of material.Strips of specified size and form are cut from the treated materials and coated with the adhesive under test. Thecoats applied are dried for a specified period of time under specified conditions.For determination of the optimum activation temperatures coats on sole material strips are heat activated to varioussurface temperatures at intervals of 10 C from 50 C to 90 C, unless otherwise specified, and immediatelyassembled with dried but not activated coats on strips cut from upper material. The test pieces produced are storedfor a specified time under specified conditions before their strength is determined in a peel test in accordance withEN 1392.SIST EN 12961:2002

Page 5EN 12961:2001For determination of the maximum activation life coats on sole material strips are dried and heat activated, aftervarious specified time intervals, to a determined optimum activation temperature and immediately assembled withdried but not activated coats on strips cut from upper material. The test pieces obtained are stored for a specifiedtime under specified conditions before their strength is determined in a peel test in accordance with EN 1392.5 SafetyPersons using this standard shall be familiar with normal laboratory practice.This standard does not purport to address all the safety problems, if any, associated with its use.It is the respons
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