ENV 302-5:2001

SLOVENSKI STANDARD
01-september-2002
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Adhesives for load-bearing timber structures - Test methods - Part 5: Determination of
the conventional assembly time
Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 5: Bestimmung der
durchschnittlichen Antrockenzeit
Adhésifs pour structures portantes en bois - Méthodes d'essais - Partie 5: Détermination
de la durée conventionnelle d'assemblage
Ta slovenski standard je istoveten z: ENV 302-5:2001
ICS:
83.180 Lepila Adhesives
91.080.20 Lesene konstrukcije Timber structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN PRESTANDARD
ENV 302-5
PRÉNORME EUROPÉENNE
EUROPÄISCHE VORNORM
December 2001
ICS 83.180
English version
Adhesives for load-bearing timber structures - Test methods -
Part 5: Determination of the conventional assembly time
Adhésifs pour structures portantes en bois - Méthodes Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 5:
d'essais - Partie 5: Détermination de la durée Bestimmung der durchschnittlichen Antrockenzeit
conventionnelle d'assemblage
This European Prestandard (ENV) was approved by CEN on 4 October 2001 as a prospective standard for provisional application.
The period of validity of this ENV is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the ENV can be converted into a European Standard.
CEN members are required to announce the existence of this ENV in the same way as for an EN and to make the ENV available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the ENV) until the final
decision about the possible conversion of the ENV into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. ENV 302-5:2001 E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Normative references.4
3 Terms and definitions .4
4 Safety.4
5 Principle.4
6 Apparatus.5
7 Procedure.5
8 Expression of results .6
9 Test report.6
Foreword
This European Prestandard has been prepared by Technical Committee CEN/TC 193 "Adhesives", the secretariat
of which is held by AENOR.
This prestandard is one of a series dealing with adhesives for use with timber structures. The series consists of
seven test methods used to assess the performance of adhesives after specified heat and humidity treatments.
The other parts of the prestandard are :

prEN 302 - 1 Rev: Determination of longitudinal tensile shear strength;

prEN 302 – 2 Rev: Determination of resistance to delamination;

prEN 302 – 3 Rev: Determination of the effect of acid damage to wood fibres by temperature and humidity
cycling on the transverse tensile strength;

prEN 302 - 4 Rev: Determination of the effects of wood shrinkage on the shear strength;

prEN 302 - 6: Determination of the conventional pressing time;

prEN 302 - 7: Determination of the conventional working life.
No existing European Standard is superseded.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this European Prestandard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.
1 Scope
This European Prestandard specifies a laboratory method of determining the conventional assembly time for
adhesives for load bearing timber structures under specified conditions.
This test method is not intended for use with adhesive systems in which the components are separately and
sequentially applied to the substrate.
This prestandard is only intended for obtaining a reliable base of comparison between similar adhesives. The
method gives result which cannot be applied to the safe manufacture of timber structures without modifications for
the influences of timber density/absorbency, moisture content, factory temperature and relative air humidity.
2 Normative references
This European Prestandard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publication
...