1、May 2017 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 83.180!%eBd“2663165www.din.deDIN EN
2、15425Adhesives One component polyurethane (PUR) for loadbearing timber structures Classification and performance requirements;English version EN 15425:2017,English translation of DIN EN 15425:2017-05Klebstoffe EinkomponentenKlebstoffe auf Polyurethanbasis (PUR) fr tragende Holzbauteile Klassifizieru
3、ng und Leistungsanforderungen;Englische Fassung EN 15425:2017,Englische bersetzung von DIN EN 15425:2017-05Adhsifs Adhsifs polyurthane monocomposants (PUR) pour structures portantes en bois Classification et exigences de performance;Version anglaise EN 15425:2017,Traduction anglaise de DIN EN 15425:
4、2017-05SupersedesDIN EN 15425:200806www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 19 pages 05.17 2 A comma is used as the decimal marker. National foreword This document (EN 15425:2017) has been prep
5、ared by Technical Committee CEN/TC 193 “Adhesives” (Secretariat: UNE, Spain). The responsible German body involved in its preparation was DIN-Normenausschuss Holzwirtschaft und Mbel (DIN Standards Committee Timber and Furniture), Working Committee NA 042-04-05 AA “Mirror committee for CEN/TC 193/SC
6、1 wood adhesives”. Amendments This standard differs from DIN EN 15425:2008-06 as follows: a) Clause 3 “Terms and definitions” has been extended; b) in Clause 4, a new classification system has been introduced with 90 C test temperature and 1 mm glue line thickness in the test programme; c) the test
7、programme for adhesives with identical chemical composition except for a different amount of catalyst has been included in Clause 4; d) adhesives tested for working properties according to Clause 7 shall be marked with a “w” at the end of their designation code; e) in 5.1, general requirements for t
8、he different tests have been listed; f) in 5.2, 6.2 and Annex A, test treatment A8 (tensile/shear test at 90 ) has been introduced; g) in 5.6, a more precise description of failure modes and their influence has been given; h) in 5.7, the necessary times for the test have been reduced for glue line t
9、hickness 0,3 mm (General purpose adhesives); identical duration times have been introduced for the new class “Special purpose adhesives” with 0,5 mm glue line thickness in test; i) a new test method is included for long-term sustained load test at cyclic climate conditions with specimens loaded perp
10、endicular to the glue line according to EN 15416-1:2017 (Glass house test); j) in 7.2, the test method EN ISO 2555 has been included; k) Clause 8 “Marking and labelling” has been included. Previous editions DIN EN 15425: 2008-06 DIN EN 15425:2017-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM
11、EN 15425 January 2017 ICS 83.180 Supersedes EN 15425:2008English Version Adhesives - One component polyurethane (PUR) for load-bearing timber structures - Classification and performance requirements Adhsifs - Adhsifs polyurthane monocomposants (PUR) pour structures portantes en bois - Classification
12、 et exigences de performance Klebstoffe - Einkomponenten-Klebstoffe auf Polyurethanbasis (PUR) fr tragende Holzbauteile - Klassifizierung und Leistungsanforderungen This European Standard was approved by CEN on 14 November 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulatio
13、ns 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. T
14、his 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 me
15、mbers are the national standards bodies of 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, Port
16、ugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation
17、in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15425:2017 EEN 15425:2017 (E) 2 Contents Page European foreword . 3 Introduction 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 7 4 Classification . 8 5 Requirements 11 5.1 General . 11 5.2 Bond str
18、ength in longitudinal tensile shear test 11 5.3 Resistance to delamination 12 5.4 Tensile strength perpendicular to the glue line after climatic treatment (acid damage test) . 13 5.5 Effect of wood shrinkage on the shear strength 13 5.6 Static load test of multiple glue line specimens in compression
19、 shear 13 5.7 Creep deformation test at cyclic climate conditions with specimens loaded in bending shear 13 5.8 Long-term sustained load test at cyclic climate conditions with specimens loaded perpendicular to the glue line (“Glass house test”) . 14 6 Test methods . 14 6.1 General . 14 6.2 Determina
20、tion of longitudinal tensile shear strength 14 6.3 Determination of resistance to delamination 14 6.4 Determination of tensile strength perpendicular to the glue line after climatic treatment (acid damaged test) 14 6.5 Determination of the effect of wood shrinkage on the shear strength . 14 6.6 Stat
21、ic load test of multiple glue line specimens in compression shear 14 6.7 Creep deformation test with specimens loaded in bending shear . 15 6.8 Long-term sustained load test at cyclic climate conditions with specimens loaded perpendicular to the glue line (“Glass house test”) . 15 7 Working properti
22、es of the adhesive 15 7.1 General . 15 7.2 Determination of initial viscosity under reference conditions . 15 7.3 Determination of open assembly time under reference conditions 15 7.4 Determination of pressing time under reference conditions 15 8 Marking and labelling . 15 Annex A (normative) Climat
23、ic treatment prior to shear test 16 Bibliography . 17 DIN EN 15425:2017-05 EN 15425:2017 (E) 3 European foreword This document (EN 15425:2017) 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
24、of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2017, and conflicting national standards shall be withdrawn at the latest by July 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of p
25、atent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15425:2008. Compared to EN 15425:2008, the following main changes have been made: a) terms and definitions have been written in details in Clause 3, not only referring to EN 923
26、:2015; b) a new classification system has been introduced. 90 C test temperature and 1 mm glue line thickness are included in the test program in Clause 4. Adhesives tested for working properties according to Clause 7 will be marked with a “w” in the end of their designation code; c) general require
27、ments for the different tests have been listed in 5.1; d) test treatment A8 (tensile/shear test at 90 ) has been introduced in 5.2, 6.2 and Annex A; e) a new test method is given in 5.8: Long-term sustained load test at cyclic climate conditions with specimens loaded perpendicular to the glue line (
28、Glass house test EN 15416-1:2017); f) the test method EN ISO 2555 has been included in 7.2; g) the necessary duration times for the test given in 5.7 have been reduced for glue line thickness 0,3 mm (General purpose adhesives). Identical duration times have been introduced for the new class “Special
29、 purpose adhesives” with 0,5 mm glue line thickness in test; h) EN 15416-2:2007, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 2: Static load test of multiple bond line specimens in compression shear has been introduced to the EN 302 series as EN
30、 302-8:2017; i) in 5.6 - Static load test of multiple glue line specimens in compression shear - a definition is given for a failure mode which leads to a not counted sample; j) a new Clause 8 Marking and labelling has been introduced; k) a test program for adhesives with identical chemical composit
31、ion except for a different amount of catalyst, has been introduced in Clause 4; l) in 5.6, a more precise description of failure modes and their influence is given. This document is one of a series dealing with one component polyurethane adhesives for use with timber structures, and is published in
32、support of EN 1995-1-1, Eurocode 5: Design of timber structures - Part 1-1: General - Common rules and rules for buildings. DIN EN 15425:2017-05 EN 15425:2017 (E) 4 The series consists of: one standard for classification and performance requirements (EN 15425:2017), seven test methods (EN 302-1, EN
33、302-2, EN 302-3, EN 302-4, EN 302-8:2017, EN 15416-1:2017 (“Glass house test”) and EN 15416-3:2017) used to assess the performance of adhesives after specified heat and humidity treatments, and three test methods (EN ISO 2555 (reference in EN 302-7), EN 15416-4:2017, and EN 15416-5:2017) to characte
34、rize the working properties of the adhesives. 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, Form
35、er Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 15425:2017-05 EN 15425:201
36、7 (E) 5 Introduction Safety statement Persons using this European Standard should be familiar with the normal laboratory practice, if applicable. This European Standard cannot address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appro
37、priate 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 European Standard may have negative environmental impact. As technological advantages lead to better alternatives for these
38、 materials, they will be eliminated from this European Standard to the extent possible. At the end of the test, it is recommended that the user of this European Standard take care to carry out an appropriate disposal of the wastes, according to local regulation. DIN EN 15425:2017-05 EN 15425:2017 (E
39、) 6 1 Scope This European Standard establishes a classification for one component polyurethane (PUR) adhesives according to their suitability for use in load-bearing timber structures in defined climatic exposure conditions; it specifies performance requirements for such adhesives for the factory ma
40、nufacture or factory like manufacturing of load-bearing timber structures only. It also classifies “adhesive lines” where all the products within the line have almost identical physical/chemical properties and gluing performance, but different reactivity. This European Standard only specifies the pe
41、rformance of adhesives for use in an environment corresponding to the defined conditions. The performance requirements of this European Standard apply to the adhesives only, not to the timber structure. This European Standard does not cover the performance of adhesives for on-site gluing (except for
42、 factory-like conditions) nor the production of wood-based panels, except solid wood panels, or modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. such as acetylated wood, heat treated wood and polymer impregnated wood. This European Standard is primarily
43、intended for the use of adhesive manufacturers and for the use in timber structures bonded with adhesives, to assess or control the quality of adhesives. The requirements apply to the type testing of the adhesives. Production control activities are outside the scope of this European Standard. Adhesi
44、ves meeting the requirements of this European Standard are adequate for use in load-bearing timber structure, provided that the bonding process has been carried out according to an appropriate product standard. 2 Normative references The following documents, in whole or in part, are normatively refe
45、renced 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 302-1, Adhesives for load-bearing timber structures - Test methods - P
46、art 1: Determination of longitudinal tensile shear strength EN 302-2, Adhesives for load-bearing timber structures - Test methods - Part 2: Determination of resistance to delamination EN 302-3, Adhesives for load-bearing timber structures - Test methods - Part 3: Determination of the effect of acid
47、damage to wood fibres by temperature and humidity cycling on the transverse tensile strength EN 302-4, Adhesives for load-bearing timber structures - Test methods - Part 4: Determination of the effects of wood shrinkage on the shear strength EN 302-7, Adhesives for load-bearing timber structures - T
48、est methods - Part 7: Determination of the working life under referenced conditions EN 302-8:2017, Adhesives for load-bearing timber structures Test methods Part 8: Static load test of multiple bond line specimens in compression shear EN 923:2015, Adhesives - Terms and definitions DIN EN 15425:2017-
49、05 EN 15425:2017 (E) 7 EN 15416-1:2017, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 1: Long-term tension load test perpendicular to the bond line at varying climate conditions with specimens perpendicular to the glue line (Glass house test) EN 15416-3:2017, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 3: Creep deformation test at cyclic climate c
