EN 1058:2024
(Main)Wood-based panels - Determination of characteristic 5-percentile values and characteristic mean values
Wood-based panels - Determination of characteristic 5-percentile values and characteristic mean values
On the basis of test results from wood-based panel products for structural purposes, this document specifies a method for the determination of:
- characteristic 5-percentile values of mechanical properties under the assumption of a log-normal distribution of the test data according to EN 14358; and
- characteristic mean values (50-percentile values) of physical properties under the assumption of a normal distribution of the test data according to EN 14358.
Test data can be determined from tests using the test methods outlined in the test standard EN 789 or other relevant test standard, performance standard or product standard normatively referring to FprEN 1058.
NOTE See e.g. EN 1195 and EN 12871.
The statistical evaluation follows the principles of EN 1990:2002+A1:2005+A1:2005/AC:2010, Annex D, of EN 1995 1 1:2004+AC:2006+A1:2008 and of EN 14358:2016.
Holzwerkstoffe - Bestimmung der charakteristischen 5-%-Quantilwerte und der charakteristischen Mittelwerte
Dieses Dokument legt ein Berechnungsverfahren auf der Grundlage von Prüfergebnissen von Holzwerkstoffen für tragende Zwecke fest zur Bestimmung von:
- charakteristischen 5-%-Quantilwerten von mechanischen Eigenschaften unter Annahme einer log-normalen Verteilung der Prüfwerte nach EN 14358; und von
- charakteristischen Mittelwerten (50-%-Quantilwerte) von physikalischen Eigenschaften unter Annahme einer Normalverteilung der Prüfwerte nach EN 14358.
Die Prüfwerte können aus Prüfungen nach den Prüfverfahren ermittelt werden, die in der Prüfnorm EN 789 oder einer anderen maßgeblichen Prüfnorm, Leistungsnorm oder Produktnorm, die normativ auf FprEN 1058 verweist, beschrieben sind.
ANMERKUNG Siehe z. B. EN 1195 und EN 12871.
Die statistische Evaluierung folgt den Grundsätzen von EN 1990:2002+A1:2005+A1:2005/AC:2010, Anhang D, EN 1995 1 1:2004+AC:2006+A1:2008 und EN 14358:2016.
Panneaux à base de bois - Détermination des valeurs caractéristiques correspondant au fractile à 5 % d'exclusion et des valeurs caractéristiques moyennes
Sur la base des résultats des essais des panneaux à base bois à but structurel, le présent document spécifie une méthode pour la détermination :
- des valeurs caractéristiques des propriétés mécaniques correspondant au fractile à 5 % d'exclusion, en supposant une distribution log-normale des données d'essai conformément à l'EN 14358 ; et
- des valeurs caractéristiques moyennes des propriétés physiques (valeurs à 50 % d'exclusion) en supposant une distribution normale des données d'essai selon l'EN 14358.
Les résultats d'essai peuvent être déterminés à partir des essais utilisant les méthodes décrites dans l'EN 789 ou toute autre norme applicable, norme de performance ou norme de produit se référant de façon normative au prEN 1058.
NOTE Voir également l'EN 1195 et l'EN 12871.
L'évaluation statistique suit les principes de l'Annexe D de l'EN 1990:2002, de l'EN 1995 1 1:2004, Eurocode 5 : Conception et calcul des structures en bois — Partie 1-1 : Généralités — Règles générales et règles pour les bâtiments, et de l'EN 14358:2016, Structures en bois. Détermination et vérification des valeurs caractéristiques.
Lesne plošče - Ugotavljanje karakterističnih 5-percentilnih vrednosti in karakterističnih srednjih vrednosti
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 1058:2023
01-november-2023
Lesne plošče - Ugotavljanje karakterističnih 5-percentilnih vrednosti in
karakterističnih srednjih vrednosti
Wood-based panels - Determination of characteristic 5-percentile values and
characteristic mean values
Holzwerkstoffe - Bestimmung der charakteristischen 5-%-Quantilwerte und der
charakteristischen Mittelwerte
Panneaux à base de bois - Détermination des valeurs caractéristiques correspondant au
fractile à 5 % d'exclusion et des valeurs caractéristiques moyennes
Ta slovenski standard je istoveten z: prEN 1058
ICS:
79.060.01 Lesne plošče na splošno Wood-based panels in
general
oSIST prEN 1058:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 1058:2023
oSIST prEN 1058:2023
DRAFT
EUROPEAN STANDARD
prEN 1058
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2023
ICS 79.060.10 Will supersede EN 1058:2009
English Version
Wood-based panels - Determination of characteristic 5-
percentile values and characteristic mean values
Panneaux à base de bois - Détermination des valeurs Holzwerkstoffe - Bestimmung der charakteristischen
caractéristiques correspondant au fractile à 5 % 5-%-Quantilwerte und der charakteristischen
d'exclusion et des valeurs caractéristiques moyennes Mittelwerte
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 112.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN in 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 standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1058:2023 E
worldwide for CEN national Members.
oSIST prEN 1058:2023
prEN 1058:2023 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Symbols . 5
5 Reference population . 5
6 Determination of characteristic values of mechanical and physical properties . 5
6.1 Sampling . 5
6.2 Testing . 6
6.3 Analysis of data . 6
6.3.1 General. 6
6.3.2 Strength and stiffness properties. 6
6.3.3 Characteristic mean value (50-percentile characteristic value) . 6
7 Test report . 6
Annex A (informative) Calculation of the 5-percentile characteristic value of log-normal
distributed test data according to EN 14358 . 7
A.1 Symbols . 7
A.1.1 Letter symbols. 7
A.1.2 Indices . 7
A.2 Analysis of data – Characteristic value m of test data with unknown coefficient of
k
variation . 7
A.3 Acceptance criteria for a sample . 8
A.4 Example of calculation – Determination of the characteristic value of the modulus of
bending f of particle boards with unknown coefficient of variation . 8
Annex B (informative) Calculation of the characteristic mean value (50-percentile value) of
normal distributed test data according to EN 14358. 11
B.1 Symbols . 11
B.1.1 Letter symbols (see also Annex A) . 11
B.1.2 Indices (see also Annex A) . 11
B.2 Analysis of data – 50-percentile characteristic value (characteristic mean value) . 11
B.3 Acceptance criteria for a sample . 11
Bibliography . 12
oSIST prEN 1058:2023
prEN 1058:2023 (E)
European foreword
This document (prEN 1058:2023) has been prepared by Technical Committee CEN/TC 112 “Wood-based
panels”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN enquiry.
This document will supersede EN 1058:2009.
The main changes compared to the previous edition are listed below:
a) test methods like EN 1195 or any other relevant test referring to prEN 1058 included in the scope;
b) the calculation of mean values (50-percentile values) follows the statistical principles of
EN 14358:2016, 4.3: Calculation of characteristic stiffness properties (mean values);
c) the characteristic mean values are taken as the sample mean value of EN 14358:2016, Formula (14).
d) Annex B is informative.
oSIST prEN 1058:2023
prEN 1058:2023 (E)
1 Scope
On the basis of test results from wood-based panel products for structural purposes, this document
specifies a method for the determination of:
— characteristic 5-percentile values of mechanical properties under the assumption of a log-normal
distribution of the test data according to EN 14358; and
— characteristic mean values (50-percentile values) of physical properties under the assumption of a
normal distribution of the test data according to EN 14358.
Test data can be determined from tests using the test methods outlined in test the standard EN 789 or
other relevant test standard, performance standard or product standard normatively referring to
prEN 1058.
NOTE See e.g. EN 1195 and EN 12871.
The statistical evaluation follows the principles of Annex D of EN 1990:2002, of EN 1995-1-1:2004,
Eurocode 5: Design of timber structures — Part 1-1: General — Common rules and rules for buildings, and
of EN 14358:2016, Timber structures. Calculation and verification of characteristic values.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 326-1, Wood-based panels - Sampling, cutting and inspection - Part 1: Sampling and cutting of test pieces
and expression of test results
EN 789, Timber structures - Test methods - Determination of mechanical properties of wood based panels
EN 1195, Timber structures - Test methods - Performance of structural floor de
...
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