BS EN 302-3:2017 – TC:2020 Edition

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Tracked Changes. Adhesives for load-bearing timber structures. Test methods – Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength

Published By	Publication Date	Number of Pages
BSI	2020	33

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Description

This European Standard specifies a method for determining the effect on bond strength of damage to wood fibres caused by the action of acids from the adhesive or primer used in the gluing process during climatic cycling. It is suitable for the following applications: a) for assessing the compliance of adhesives with EN 301, EN 15425 and EN 16254; b) for assessing the suitability and quality of adhesives for load-bearing timber structures; c) for determining if the adhesive after bonding has a damaging influence on the strength of the wood due to chemical action. This test is intended primarily to obtain performance data for the classification of adhesives for load-bearing timber structures according to their suitability for use in defined climatic environments. This test is carried out on Norway spruce (Picea abies L.) or Beech (Fagus sylvatica L.). This method is not intended for use to provide numerical design data and does not necessarily represent the performance of the bonded member in service.

PDF Catalog

PDF Pages	PDF Title
19	National foreword
25	1 Scope 2 Normative references 3 Principle 4 Apparatus
26	5 Method 5.1 Selection of timber 5.2 Preparation of the bonded assemblies
28	5.3 Preparation of the test pieces 5.4 Number of test pieces 5.5 Climatic and cyclic storage conditions
29	5.6 Test procedure 6 Expression of results
30	7 Test report

Additional information

Status	Withdrawn
Pages	33
Publication Date	2020-02-25
Withdrawn Date	2023-01-27
Replaced By	BS EN 302-3:2023 – TC
ISBN	978-0-539-09929-4
Standard Number	BS EN 302-3:2017 – TC
Title	Tracked Changes. Adhesives for load-bearing timber structures. Test methods – Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength
Descriptors	Construction materials, Approval testing, Test equipment, Specimen preparation, Plastics, Adhesives, Polymers, Testing conditions, Adhesion tests, Wood, Tensile testing, Phenolic resins, Aminoplasts, Structural timber, Test specimens, Adhesive-bonded joints, Thermal-cycling tests
Publisher	BSI
Committee	PRI/52
ICS Codes	83.180 - Adhesives

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BS EN 302-3:2017 – TC:2020 Edition

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