iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

EN 635-2:1995

(Main)

Plywood - Classification by surface appearance - Part 2: Hardwood

Plywood - Classification by surface appearance - Part 2: Hardwood

This European Standard specifies the nature and limits of characteristics inherent in wood and manufacturing defects enabling the visual assessment of theplywood for allocation to an appearance class. This classification is a contribution to assessing the finishing suitability of plywood. This part of EN 635 applies to plywood, the surface veneers of which are made from hardwood species. It does not apply to overlaid panels.

Sperrholz - Klassifizierung nach dem Aussehen der Oberfläche - Teil 2: Laubholz

Diese Europäische Norm legt die Art und Zulässigkeit von holzeigenen Merkmalen und fertigungsbedingten Fehlern fest für die Klassifizierung nach dem Aussehen der Oberflächen von Sperrholz. Diese Klassifizierung erleichtert die Beurteilung eines Sperrholzes nach seiner Eignung zur Oberflächenbehandlung. Dieser Teil der EN 635 gilt für Sperrholz, dessen Deckfurniere aus Laubhölzern hergestellt sind. Er gilt nicht für beschichtetes Sperrholz.

Contreplaqué - Classification selon l'aspect des faces - Partie 2: Bois feuillus

La présente norme européenne prescrit la nature et limite les caractéristiques inhérentes au bois et les défauts dus à la fabrication, permettant l'évaluation visuelle des faces de contreplaqué, en vue de la classification selon l'aspect. Cette classification est une contribution à l'estimation de l'aptitude du contreplaqué à la finition. La présente partie de la norme EN 635 s'applique aux contreplaqués dont les placages de faces sont constituées d'essences feuillus. Elle ne s'applique pas aux panneaux revêtus.

Vezan les - Klasifikacija po videzu površine - 2. del: Listavci

General Information

Status
Published
Publication Date
30-May-1995
ICS
79.060.10 - Plywood
Technical Committee
CEN/TC 112 - Woodbased panels
Drafting Committee
CEN/TC 112/WG 2 - Plywood
Current Stage
9093 - Decision to confirm - Review Enquiry
Completion Date
14-May-2020
Directive
305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
89/106/EEC - Construction products
Ref Project
SIST EN 635-2:1996 - Plywood - Classification by surface appearance - Part 2: Hardwood

Buy Standard

EN 635-2:1996EN 635-2:1996
PreviousNext
Standard
EN 635-2:1996
English language
8 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


SLOVENSKI STANDARD
01-marec-1996
Vezan les - Klasifikacija po videzu površine - 2. del: Listavci
Plywood - Classification by surface appearance - Part 2: Hardwood
Sperrholz - Klassifizierung nach dem Aussehen der Oberfläche - Teil 2: Laubholz
Contreplaqué - Classification selon l'aspect des faces - Partie 2: Bois feuillus
Ta slovenski standard je istoveten z: EN 635-2:1995
ICS:
79.060.10 Vezan les Plywood
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- P
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN 636:2012+A1:2015(Main + Amendment)
Plywood - Specifications
SIST EN 636:2013+A1:2015

This European Standard specifies the requirements for plywood, as defined in EN 313 2, for both general purpose use (non-structural application) and structural application in dry, humid or exterior conditions. It also gives a classification system based on the bending properties.
NOTE 1   This European Standard is referenced in EN 13986 for construction applications.
This standard can be appropriately applied for all plywood, including overlaid and coated plywood, but it does not cover materials or processes used for overlaying or coating. Neither does it cover any materials or processes applied in relation to enhancement of biological durability.
NOTE 2   For additional guidance on biological durability and the potential need for preservative treatment, according to application and serviceability, reference can be made to CEN/TS 1099.
The values listed under Clause 4 relate only to product properties; they are not 'characteristic values' and are not to be used in design calculations.
NOTE 3   Characteristic values (i.e. for use in design calculation according to EN 1995–1–1) are given either in EN 12369–2 which is based on the classification system given in this standard or by the manufacturer based on testing according to EN 789, EN 1058 and ENV 1156.
Additional information on supplementary properties for certain applications is also given.

  • Standard
    21 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 14272:2011(Main)
Plywood - Calculation method for some mechanical properties
SIST EN 14272:2012

This European Standard specifies, for plywood panels of any composition, symmetrical or not, a calculation method to derive some mechanical properties (strength and stiffness in bending, tension, compression, panel and planar shear) as well as density from the wood compounding the layers.
NOTE   Usually, the lay-up of the panels is symmetrical but, very often, the surface appearance of the face and the surface appearance of the back face differ, hence a difference between the mechanical properties of the respective veneers. Therefore, in this case, the composition is not mechanically symmetrical and a symmetry independent calculation method is needed.
Provided that structural characteristic values are taken for the layers, the resulting values for the panels can be used as characteristic values as required by EN 1995-1-1.
Conversely, Annex A defines the procedures to derive the veneer properties, in bending, tension and compression, either from testing panels according to EN 789 and EN 1058 or from timber testing according to EN 408 or from imposed values defined in EN 338.
Annex B provides practical spreadsheets, which are applications of the equations in the main part of this standard.
Annex C provide an example for the calculation of bending strength, in accordance with Annex B.

  • Standard
    47 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12369-2:2011(Main)
Wood-based panels - Characteristic values for structural design - Part 2: Plywood
SIST EN 12369-2:2011

This European Standard provides information on the characteristic values for use in designing structures incorporating wood-based panels. The characteristic values given in this standard are to be used in accordance with  EN 1995-1-1.
When utilizing the classification system for derivation of plywood characteristic values, this part of this standard can only be applied with reference to EN 636.
This part of this standard includes the characteristic values of the mechanical properties for plywood complying with EN 636 in bending, tension, compression, panel shear and planar shear. EN 636 classifies bending properties into two sets of classes, one for stiffness and another for strength. Stiffness and strength in tension and compression are related to the same properties in bending.
For shear properties, fixed values determined by correlation to density are provided.
Where optimised values are needed, the characteristic values are determined directly by testing in accordance with EN 789 and EN 1058 or by combination of testing according to the latter two standards and calculation according to prEN 14272.
This part of this standard applies to panels complying with the three following conditions:
-   5 layers or more and 6 mm overall thickness and more;
-    the ratio of the cumulative thickness of veneers in alternate directions does not exceed 2,5;
-    wood species with a mean density greater than 350 kg/m3 and not exceeding 750 kg/m3.

  • Standard
    17 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
CEN/TS 1099:2007(Main)
Plywood - Biological durability - Guidance for the assessment of plywood for use in different use classes
SIST-TS CEN/TS 1099:2008

This document gives guidance on the selection of plywood for use in the different use classes as defined in EN 335 1.
The guidance given takes into account the natural durability classification for solid timber (see EN 350 2) together with other factors specific for plywood.
It does not consider durability against chemico-physical factors, such as weathering, nor does it consider the biological durability of the adhesive.
Guidance on precautionary measures for use is also given.

  • Technical specification
    9 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
CEN/TS 635-4:2007(Main)
Plywood - Classification by surface appearance - Part 4: Parameters of ability for finishing, guideline
SIST-TS CEN/TS 635-4:2008

This document gives guidance for the end user on the selection of plywood for application of various finishes for use in dry, humid, or exterior end-use conditions.

  • Technical specification
    9 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 314-1:2004(Main)
Plywood - Bonding quality - Part 1: Test methods
SIST EN 314-1:2005

This document specifies methods for determining the bonding quality of veneer plywood, blockboard and laminboard by shear testing.
The relevant requirements are specified in EN 314 2.
This document is suitable for insulating core plywood as defined in Annex B.
Annex A is normative. Annex B is informative.

  • Standard
    20 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 315:2000(Main)
Plywood - Tolerances for dimensions
SIST EN 315:2004

This European Standard specifies dimensional tolerances of plywood panels (length, width, thickness) and tolerances for squareness and edge straightness. NOTE Some uses of plywood can require narrower tolerances: see specific standards for types or perfor-mance
standards.

  • Standard
    5 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 313-2:1999(Main)
Plywood - Classification and terminology - Part 2: Terminology
SIST EN 313-2:2000

This European Standard defines the principal terms concerning plywood.

  • Standard
    19 pages
    English, French and German language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 635-5:1999(Main)
Plywood - Classification by surface appearance - Part 5: Methods for measuring and expressing characteristics and defects
SIST EN 635-5:2000

THis European Standard specifies the methods for measuring and expressing: some natural characteristics of wood, and the defects that come from the manufacturing process which are used for the classification of the appearance of plywood surfaces according to EN 635-1, EN 635-2 and EN 635-3.

  • Standard
    10 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 313-1:1996(Main)
Plywood - Classification and terminology - Part 1: Classification
SIST EN 313-1:2000

This European standard gives a classification of plywood panels.

  • Standard
    4 pages
    English language
    sale 10% off
    e-Library read for
    1 day