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  • Abstract:
    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.
  • Document number:
    DIN EN 302-3
  • Issuing date:
    2022-01-01
  • Document type:
    Norm-Entwurf
  • Title:
    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; German and English version prEN 302-3:2021
  • Author:
    Timber and Furniture Standards Committee
  • Search term:
    Acid resistance; Adhesives; Aminoplasts; Checking equipment; Chemical hazards; Climatic loading; Climatic tests; Components; Conditioned cabinet; Construction; Cycle; Cyclic; Damage by acid; Definitions; Duration; Fibres; Glue; Holdings; Humidity; Impairment damage; Loadability; Loadbearing; Material testing machines; Moisture; Phenol; Phenolic plastics; Polycondensation products; Principle; Production; Selection; Storage; Structural timber; Temperature; Tensile strength; Test equipment; Test pieces; Testing; Timber construction; Transverse tensile strength; Wood; Wood fibres; Wood technology; Wooden structural part
  • Application areas:
    08.10 Baustoffe (Zement, Mauersteine u. Ä.)
  • Hazards:
    AB Terminologische Festlegungen in Normen mit Arbeitsschutzbezug; AC Mess- und Prüfverfahren für die Ermittlung von Belastungen und Gefährdungen; CA Chemische Gefährdungen im Allgemeinen; HB Klima (Temperatur, Feuchtigkeit, Luftströmung, Luftzusammensetzung u. Ä.); KE Belastungen durch Funktionsstörungen an Arbeitsmitteln (Ausfall, Bruch, fehlerhafte Montage, Softwarefehler, Störung der Energieversorgung)
  • ICS:
    83.180 Adhesives
  • Price:
    82,20 EUR
  • Identical with:
    prEN 302-3(2021-12)<IDT>
  • Update flag:
    Unchanged
  • Deadline for comments:
    2022-01-26