SIST EN 205:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lepila - Lepila za les za nekonstrukcijsko uporabo - Ugotavljanje natezno-strižne trdnosti spojev s preklopomKlebstoffe - Holzklebstoffe für nicht tragende Anwendungen - Bestimmung der Klebfestigkeit von Längsklebungen im ZugversuchAdhésifs - Colles pour bois à usages non structuraux - Détermination de la résistance au cisaillement en traction des joints à recouvrementAdhesives - Wood adhesives for non-structural applications - Determination of tensile shear strength of lap joints83.180LepilaAdhesivesICS:Ta slovenski standard je istoveten z:EN 205:2016SIST EN 205:2016en,fr,de01-oktober-2016SIST EN 205:2016SLOVENSKI
STANDARDSIST EN 205:20031DGRPHãþD



SIST EN 205:2016



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 205
August
t r s x ICS
z uä s z r Supersedes EN
t r wã t r r uEnglish Version
Adhesives æ Wood adhesives for nonæstructural applications æ Determination of tensile shear strength of lap joints Adhésifs æ Colles pour bois à usages non structuraux æ Détermination de la résistance au cisaillement en traction des joints à recouvrement
Klebstoffe æ Holzklebstoffe für nicht tragende Anwendungen æ Bestimmung der Klebfestigkeit von Längsklebungen im Zugversuch This European Standard was approved by CEN on
z July
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
t r wã t r s x ESIST EN 205:2016



EN 205:2016 (E) 2 Contents Page European foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Principle . 5 5 Apparatus . 5 6 Procedure. 5 6.1 Preparation of bonded assemblies . 5 6.2 Preparation of test pieces . 8 6.3 Number of test pieces . 8 6.4 Treatment prior to tensile shear testing . 9 6.5 Tensile shear test . 9 7 Expression of results . 9 8 Test report . 9 Annex A (informative)
Single lap joint test pieces . 11
SIST EN 205:2016



EN 205:2016 (E) 3 European foreword This document (EN 205:2016) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by AENOR. 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 2017, and conflicting national standards shall be withdrawn at the latest by February 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN
shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 205:2003. Compared to EN 205:2003 the following modifications have been made: a) assessment of the strength based on thick bond lines deleted; b) processing conditions for adhesive application specified in 6.1 if no manufacturer's instructions are available; c) number of test pieces modified in 6.3; d) test results of all 20 test pieces to be given in the test report. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 205:2016



EN 205:2016 (E) 4 Introduction European Standards giving a common classification with respect to durability classes for wood adhesives will allow considerable improvement in consumer protection in any future product liability system with regard to properties guaranteed by the adhesive manufacturer. The methods described in this standard are suitable for the following and other applications: — assessing the usability and quality of adhesives for wood and derived timber products; — classifying these adhesives into the durability classes D1 to D4 of EN 204 (thermoplastic adhesives) and C1 to C4 of EN 12765 (thermosetting adhesives); — assessing effects on the bond strength resulting from the bonding conditions chosen, the various conditioning sequences and the treatment of the test pieces before and after bonding. SAFETY STATEMENT — Persons using this document should be familiar with the normal laboratory practice, if applicable. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory conditions. ENVIRONMENTAL STATEMENT — It is understood that some of the material permitted in this standard may have negative environmental impact. As technological advantages lead to acceptable alternatives for these materials, they will be eliminated from this standard to the extent possible. At the end of the test, it is essential that the user of the standard take care to carry out an appropriate disposal of the wastes, according to local regulation SIST EN 205:2016



EN 205:2016 (E) 5 1 Scope This European Standard specifies tests for adhesives for wood and derived timber products for the assessment of their resistance to hot and cold water. It can be used for the assessment of the strength of bonds with a thin bond-line. It does not apply to adhesives for structural use or to the manufacture of particleboards, fibreboards and plywood. It does not replace tests on finished products. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 204, Classification of thermoplastic wood adhesives for non-structural applications EN 923, Adhesives - Terms and definitions EN 12765, Classification of thermosetting wood adhesives for non-structural applications ISO 5893, Rubber and plastics test equipment — Tensile, flexural and compression types (constant rate of traverse) — Specification ISO 6344-2:1998, Coated abrasives — Grain size analys
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