DIN EN 15416-5-2017 Adhesives for load bearing timber structures other than phenolic and aminoplastic - Test methods - Part 5 Determination of minimum pressing time under reference.pdf

1、May 2017 English price group 8No 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!%eB“2663161www.din.deDIN EN 15

2、416-5Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 5: Determination of minimum pressing time under referenced conditions;English version EN 154165:2017,English translation of DIN EN 15416-5:2017-05Klebstoffe fr tragende Holzbauteile ausgenommen P

3、henolharzklebstoffe und Aminoplaste Prfverfahren Teil 5: Bestimmung der Mindestpresszeit bei Referenzbedingungen;Englische Fassung EN 154165:2017,Englische bersetzung von DIN EN 15416-5:2017-05Adhsifs pour structures portantes en bois de type autre que phnolique et aminoplaste Mthodes dessais Partie

4、 5: Dtermination du temps de pressage minimal dans des conditions de rfrence;Version anglaise EN 154165:2017,Traduction anglaise de DIN EN 15416-5:2017-05SupersedesDIN EN 154165:200610www.beuth.deDocument comprises 12 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language orig

5、inal shall be considered authoritative.05.17 DIN EN 15416-5:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN 15416-5:2017) has been prepared by Technical Committee CEN/TC 193 “Adhesives” (Secretariat: UNE, Spain). The responsible German body involved in its prepar

6、ation 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 1 wood adhesives”. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO

7、6344-2 DIN ISO 6344-2 Amendments This standard differs from DIN EN 15416-5:2006-10 as follows: a) the title of the standard has been modified; b) the application for EPI adhesives according to EN 16254 has been included; c) the document has been aligned with DIN EN 302-6; d) measurement and reportin

8、g of glue line thickness has been deleted. Previous editions DIN EN 15416-5: 2006-10 National Annex NA (informative) Bibliography DIN ISO 6344-2, Coated abrasives Grain size analysis Part 2: Determination of grain size distribution of macrogrits P 12 to P 220 EUROPEAN STANDARD NORME EUROPENNE EUROPI

9、SCHE NORM EN 15416-5 January 2017 ICS 83.180 Supersedes EN 15416-5:2006English Version Adhesives for load bearing timber structures other than phenolic and aminoplastic - Test methods - Part 5: Determination of minimum pressing time under referenced conditions Adhsifs pour structures portantes en bo

10、is de type autre que phnolique et aminoplaste - Mthodes d essais - Partie 5: Dtermination du temps de pressage minimal dans des conditions de rfrence Klebstoffe fr tragende Holzbauteile ausgenommen Phenolharzklebstoffe und Aminoplaste - Prfverfahren Teil 5: Bestimmung der Mindestpresszeit bei Refere

11、nzbedingungen This European Standard was approved by CEN on 30 October 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibli

12、ographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the respons

13、ibility 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 members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Repub

14、lic 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D

15、E NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15416-5:2017 E-2 Contents Page European foreword . 3 Introduction

16、5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Principle . 7 5 Apparatus . 7 5.1 Climate cabinets 7 5.2 Testing machine 7 6 Procedure. 7 6.1 General 7 6.2 Preparation of bonded assemblies . 7 6.3 Preparation of test specimens 8 6.4 Test procedure . 8 7 Expression of results 9 7.1

17、 Tensile shear strength . 9 7.2 Failure mode . 9 8 Requirement . 9 9 Test report . 9 9.1 General information . 9 9.2 Information about the adhesive 9 9.3 Preparation of test pieces and testing procedure 10 9.4 Test results . 10 EN 15416-5:2017 (E) DIN EN 15416-5:2017-05 3 European foreword This docu

18、ment (EN 15416-5:2017) 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 of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2017, and co

19、nflicting 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 patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes

20、EN 15416-5:2006. Compared to EN 15416-5:2006, the following main modifications have been made: a) title has been changed; b) application for EPI adhesives according to EN 16254 has been added; c) the pressing times are determined for both close contact glue line and 0,3 mm thick glue line when testi

21、ng PUR adhesives (EN 15425) and EPI adhesives in category “General purpose” (EN 16254), and close contact glue line and 0,2 mm thick glue for EPI adhesives designed for category “Small dimensions” (EN 16254); d) some parts of this European Standard are made in line with EN 302-6:2013; e) some of the

22、 wording in EN 302-1:2013 have been used to describe how to evaluate and report % wood failure (fibre failure) in the tested test pieces; f) it is stated that the glue application shall be done at the temperature used for conditioning and pressing of the material. When screening tests are performed,

23、 the material may, however, be removed from the test temperature for glue application; g) measurement and reporting of glue line thickness has been deleted. This document is one of a series dealing with adhesives for use with timber structures, and is published in support of product standards for bo

24、nded load-bearing timber structures. The series consists of three classification and performance requirements for adhesives for load-bearing timber structures, phenolic and aminoplastic adhesives (EN 301), one component polyurethane adhesives (EN 15425) and emulsion polymerized isocyanate adhesives

25、(EN 16254), together with 12 test methods (EN 302 Parts 1 to 8 and EN 15416 Parts 1 and 3 to 5). These European Standards have the following titles: EN 301, Adhesives phenolic and aminoplastic, for load-bearing timber structures Classification and performance requirements EN 15425, Adhesives One com

26、ponent polyurethane (PUR) for load-bearing timber structures - Classification and performance requirements EN 15416-5:2017 (E) DIN EN 15416-5:2017-05 4 EN 16254, Adhesives Emulsion polymerized isocyanate (EPI) for load-bearing timber structures Classification and performance requirements EN 302-1, A

27、dhesives for load-bearing timber structures Test methods Part 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 me

28、thods Part 3: Determination of the effect of acid 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 302-5, Ad

29、hesives for load-bearing timber structures Test methods Part 5: Determination of maximum assembly time under referenced conditions EN 302-6, Adhesives for load-bearing timber structures Test methods Part 6: Determination of the minimum pressing time under referenced conditions EN 302-7, Adhesives fo

30、r load-bearing timber structures Test methods Part 7: Determination of the working life under referenced conditions EN 302-8, Adhesives for load-bearing timber structures Test methods Part 8: Static load test of multiple bond line specimens in compression shear EN 15416-1, Adhesives for load bearing

31、 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, Adhesives for load bearing timber structures other than p

32、henolic and aminoplastic Test methods Part 3: Creep deformation test at cyclic climate conditions with specimens loaded in bending shear EN 15416-4, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 4: Determination of open assembly time under refere

33、nced conditions EN 15416-5, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 5: Determination of minimum pressing time under referenced conditions According to the CEN-CENELEC Internal Regulations, the national standards organisations of the followi

34、ng 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, Nor

35、way, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 15416-5:2017 (E) DIN EN 15416-5:2017-05 5 Introduction Safety statement Persons using this European Standard should be familiar with the normal laboratory practice, if applicable

36、. 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 appropriate safety and health practices and to ensure compliance with any regulatory conditions. Environmental statement It is understood that some o

37、f the material permitted in this European Standard may have negative environmental impact. As technological advantages lead to better alternatives for these 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

38、of this European Standard take care to carry out an appropriate disposal of the wastes, according to local regulation. EN 15416-5:2017 (E) DIN EN 15416-5:2017-05 6 1 Scope This European Standard specifies a laboratory method of determining the minimum pressing time for two glue line thicknesses, clo

39、se contact and 0,2 mm or 0,3 mm, at three temperatures and three wood moisture contents. This European Standard is intended to determine the minimum pressing time using a defined procedure for obtaining a reliable base for comparison of minimum pressing time between adhesives under referenced condit

40、ions. The method gives a result that cannot be applied to the safe manufacture of timber structures without taking into account the influence in variation of factors such as timber density, moisture content, factory temperature and relative air humidity. 2 Normative references The following document

41、s, 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 302-1:2013, Adhesives for

42、load-bearing timber structures Test methods Part 1: Determination of longitudinal tensile shear strength EN 923:2015, Adhesives Terms and definitions EN 15425, Adhesives One component polyurethane (PUR) for load-bearing timber structures Classification and performance requirements EN 16254, Adhesive

43、s Emulsion polymerized isocyanate (EPI) for load-bearing timber structures Classification and performance requirements ISO 5893, Rubber and plastics test equipment Tensile, flexural and compression types (constant rate of traverse) Specification ISO 6344-2, Coated abrasives Grain size analysis Part

44、2: Determination of grain size distribution of macrogrits P12 to P220 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 923:2015 and the following apply. 3.1 pressing time time for which an adhesive joint is pressed 3.2 minimum pressing time shortest pr

45、essing time until the minimum bonding strength has been reached Note 1 to entry: The minimum bonding strength is specified in Clause 8 “Requirement”. EN 15416-5:2017 (E) DIN EN 15416-5:2017-05 7 4 Principle Standard beech lap joints are tested in tensile shear after various curing times until it is

46、found that a tensile shear strength of at least 4 N/mm2is achieved at a given temperature and wood moisture content. 5 Apparatus 5.1 Climate cabinets Climatic cabinet capable of maintaining a temperature of (20 2) C and a relative humidity of (50 5) %, (65 5) % or (75 5) % to enable conditioning of

47、the beech panels to a wood moisture content of (9 1) %, (12 1) %, or (15 1) %, respectively. Temperature cabinets capable of maintaining air temperature of (15 2) C, (20 2) C and (30 2) C respectively. 5.2 Testing machine The testing machine shall be: a) either capable of maintaining a constant rate

48、 of loading of (2,0 0,5) kN/min; b) or capable of maintaining constant crosshead speed as described in ISO 5893. The jaws of the testing machine shall grip the test pieces firmly and prevent slippage during loading. The grip shall be fixed in hinged manner. 6 Procedure 6.1 General Sufficient beech p

49、anels shall be prepared to enable manufacturing of 15 sets each of at least 10 test specimens as defined in EN 302-1:2013, Clause 7 with the following glue line thickness: adhesives tested according to EN 15425: close contact and (0,3 0,1) mm; adhesives tested according to EN 16254: close contact and (0,3 0,1) mm for application a