1、BSI Standards PublicationBS EN 16254:2013Adhesives Emulsionpolymerized isocyanate(EPI) for load-bearing timberstructures Classification andperformance requirementsBS EN 16254:2013+A1:2016BS EN 16254:2013+A1:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16
2、254:2013+A1:2016. It supersedes BS EN 16254:2013 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated
3、by .The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are resp
4、onsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 91268 9ICS 83.180Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standard
5、s Policy and Strategy Committee on 31 October 2013.Amendments/corrigenda issued since publicationDate Text affected30 April 2016 Implementation of CEN amendment A1:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16254:2013+A1 April 2016 ICS 83.180 Supersedes EN 16254:2013English Version Adh
6、esives - Emulsion polymerized isocyanate (EPI) for load-bearing timber structures - Classification and performance requirements Adhsifs - Isocyanate polymris en mulsion (EPI) pour structures portantes en bois - Classification et exigences de performance Klebstoffe - Emulsionspolymerisiertes Isocyana
7、t (EPI) fr tragende Holzbauteile - Klassifizierung und Leistungsanforderungen This European Standard was approved by CEN on 22 June 2013 and includes Amendment 1 approved by CEN on 9 February 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditio
8、ns 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. This European Standard exists in
9、 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 members are the national standard
10、s 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, Portugal, Romania, Slovakia, Sloven
11、ia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved wo
12、rldwide for CEN national Members. Ref. No. EN 16254:2013+A1:2016 EEN 16254:2013+A1:2016 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Classification . 7 5 Requirements . 9 5.1 General 9 5.2 Bond strength in longitudinal tens
13、ile shear test . 9 5.3 Resistance to delamination 10 5.4 Tensile strength perpendicular to the glue line after climatic treatment (acid damage test) . 11 5.5 Effect of wood shrinkage on the shear strength 11 5.6 Static load test of multiple glue line specimens in compression shear 11 5.7 Creep defor
14、mation test at cyclic climate conditions with specimens loaded in bending shear 12 5.8 Long term sustained load test at cyclic climate conditions with specimens loaded perpendicular to the glue line (“Glass house test”) . 12 6 Test methods . 12 6.1 General . 12 6.2 Determination of bond strength in
15、longitudinal tensile shear test . 12 6.3 Determination of resistance to delamination 12 6.4 Determination of tensile strength perpendicular to the glue line after climatic treatment (acid damaged test) 12 6.5 Determination of the effect of wood shrinkage on the shear strength . 13 6.6 Static load te
16、st of multiple glue line specimens in compression shear 13 6.7 Creep deformation test with specimens loaded in bending shear . 14 6.8 Long term sustained load test at cyclic climate conditions with specimens loaded perpendicular to the glue line (“Glass house test”) . 14 7 Working properties of the
17、adhesive 14 7.1 General . 14 7.2 Determination of working life under reference conditions . 14 7.3 Determination of open assembly time under reference conditions 14 7.4 Determination of pressing time under reference conditions 14 Annex A (normative) Climatic treatment prior to shear test 15 Annex B
18、(normative) Glass house test . 16 Annex C (informative) Product limitations and glulam production control for beams produced with Small Dimension adhesives 19 Bibliography . 20 EN 16254:2013+A1:2016 (E) 3 European foreword This document (EN 16254:2013+A1:2016) has been prepared by Technical Committe
19、e 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 October 2016, and conflicting national standards shall be withdrawn at the late
20、st by October 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved by CEN on 2016-02-09.
21、This document supersedes EN 16254:2013. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standar
22、d: 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
23、, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16254:2013+A1:2016EN 16254:2013+A1:2016 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Classification . 7 5 Requirements . 9 5.1 General 9 5.2 Bond strength in longi
24、tudinal tensile shear test . 9 5.3 Resistance to delamination 10 5.4 Tensile strength perpendicular to the glue line after climatic treatment (acid damage test) . 11 5.5 Effect of wood shrinkage on the shear strength 11 5.6 Static load test of multiple glue line specimens in compression shear 11 5.7
25、 Creep deformation test at cyclic climate conditions with specimens loaded in bending shear 12 5.8 Long term sustained load test at cyclic climate conditions with specimens loaded perpendicular to the glue line (“Glass house test”) . 12 6 Test methods . 12 6.1 General . 12 6.2 Determination of bond
26、strength in longitudinal tensile shear test . 12 6.3 Determination of resistance to delamination 12 6.4 Determination of tensile strength perpendicular to the glue line after climatic treatment (acid damaged test) 12 6.5 Determination of the effect of wood shrinkage on the shear strength . 13 6.6 St
27、atic load test of multiple glue line specimens in compression shear 13 6.7 Creep deformation test with specimens loaded in bending shear . 14 6.8 Long term sustained load test at cyclic climate conditions with specimens loaded perpendicular to the glue line (“Glass house test”) . 14 7 Working proper
28、ties of the adhesive 14 7.1 General . 14 7.2 Determination of working life under reference conditions . 14 7.3 Determination of open assembly time under reference conditions 14 7.4 Determination of pressing time under reference conditions 14 Annex A (normative) Climatic treatment prior to shear test
29、 15 Annex B (normative) Glass house test . 16 Annex C (informative) Product limitations and glulam production control for beams produced with Small Dimension adhesives 19 Bibliography . 20 EN 16254:2013+A1:2016 (E) 3 European foreword This document (EN 16254:2013+A1:2016) has been prepared by Techni
30、cal 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 October 2016, and conflicting national standards shall be withdrawn
31、 at the latest by October 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved by CEN on
32、2016-02-09. This document supersedes EN 16254:2013. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Euro
33、pean 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, Slo
34、venia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16254:2013+A1:2016EN 16254:2013+A1:2016 (E) 4 Introduction This document is one of a series dealing with emulsion polymerised isocyanate (EPI) adhesives for use with timber structures, and is published in support of product stan
35、dards for bonded load-bearing timber structures. The series consists of: one standard for classification and performance requirements (EN 16254), seven test methods (EN 302-1, EN 302-2, EN 302-3, EN 302-4, EN 15416-2, EN 15416-3 and the method given in Annex B of this standard (“Glass house”) used t
36、o assess the performance of adhesives after specified heat and humidity treatments, and three test methods (EN 302-7, EN 15416-4 and EN 15416-5) to characterise the working properties of the adhesive. EN 16254:2013+A1:2016 (E) 5 1 Scope This European Standard establishes a classification for emulsio
37、n polymerised isocyanate (EPI) adhesives according to their suitability for use in load-bearing timber structures in defined climatic exposure conditions, and specifies performance requirements for such adhesives for the industrial manufacture of load-bearing timber structures only. !The performance
38、 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 factory-like conditions) nor the production of wood-based panels, except solid wood panels, or modified
39、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 intended for the use of adhesive manufacturers and for the use in timber structures bonded with adhesive
40、s, to assess or control the quality of adhesives. This European Standard only specifies the performance of an adhesive for use in an environment corresponding to the defined conditions. Such an adhesive meeting the requirements of this European Standard for its type is adequate for use in a load-bea
41、ring 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 referenced in this document and are indispensable for its application. For dated references
42、, 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 Part 1: Determination of longitudinal tensile shear strength EN 302-2, Adhesives for load-be
43、aring 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 damage to wood fibres by temperature and humidity cycling on the transverse tensile strength EN 302
44、-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 Test methods Part 7: Determination of the working life under referenced conditions EN 923:2005+A1:2008, Ad
45、hesives Terms and definitions EN 15416-2, Adhesives for load bearing timber structures other than phenolic and aminoplastic Test methods Part 2: Static load test of multiple bondline specimens in compression shear EN 15416-3, Adhesives for load bearing timber structures other than phenolic and amino
46、plastic Test methods Part 3: Creep deformation test at cyclic climate conditions with specimens loaded in bending shear BS EN 16254:2013+A1:2016EN 16254:2013+A1:2016 (E) 4 Introduction This document is one of a series dealing with emulsion polymerised isocyanate (EPI) adhesives for use with timber s
47、tructures, and is published in support of product standards for bonded load-bearing timber structures. The series consists of: one standard for classification and performance requirements (EN 16254), seven test methods (EN 302-1, EN 302-2, EN 302-3, EN 302-4, EN 15416-2, EN 15416-3 and the method gi
48、ven in Annex B of this standard (“Glass house”) used to assess the performance of adhesives after specified heat and humidity treatments, and three test methods (EN 302-7, EN 15416-4 and EN 15416-5) to characterise the working properties of the adhesive. EN 16254:2013+A1:2016 (E) 5 1 Scope This Euro
49、pean Standard establishes a classification for emulsion polymerised isocyanate (EPI) adhesives according to their suitability for use in load-bearing timber structures in defined climatic exposure conditions, and specifies performance requirements for such adhesives for the industrial manufacture of load-bearing timber structures only. !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 g
