EN 635-3:1995
(Main)Plywood - Classification by surface appearance - Part 3: Softwood
Plywood - Classification by surface appearance - Part 3: Softwood
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 softwood species. It does not apply to overlaid panels.
Sperrholz - Klassifizierung nach dem Aussehen der Oberfläche - Teil 3: Nadelholz
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 Nadelhölzern hergestellt sind. Er gilt nicht für beschichtetes Sperrholz.
Contreplaqué - Classification selon l'aspect des faces - Partie 3: Bois résineux
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 résineuses. Elle ne s'applique pas aux panneaux revêtus.
Vezan les - Klasifikacija po videzu površine - 3. del: Iglavci
General Information
Overview
EN 635-3:1995 is a European Standard (CEN) that defines how to classify plywood by surface appearance when the surface veneers are made from softwood species. The standard specifies the nature and limits of inherent wood characteristics and manufacturing defects that can be assessed visually to allocate plywood to an appearance class. Its main purpose is to support consistent assessment of finishing suitability for softwood-faced plywood. Overlaid panels are excluded from the scope.
Key topics
- Scope and applicability: Applies only to plywood with softwood surface veneers; excludes overlaid or laminated surfaces.
- Visual assessment criteria: Defines the types of inherent wood features (knots, grain variation, colour differences) and common manufacturing defects that influence surface appearance.
- Appearance classes: Provides a framework to allocate boards to classes based on visible characteristics to guide finishing and end-use decisions.
- Limits and tolerances: Establishes acceptable limits for defects and natural features that determine class allocation (used for quality control and specification).
- Finishing suitability: Links appearance classification to practical finishing outcomes-helping determine whether plywood is suitable for clear finishing, staining, painting or concealed applications.
- Inspection methodology: Describes how visual inspections are carried out for consistent evaluation (lighting, inspection distance and general procedure implied by visual classification principles).
Applications
EN 635-3:1995 is practical for professionals who need to specify, produce, inspect or use softwood-faced plywood:
- Plywood manufacturers - to set production tolerances and grade products for market.
- Quality control and inspection labs - for consistent visual grading and acceptance criteria.
- Specifiers and procurement - architects, engineers, interior designers and buyers use the classification to choose plywood with appropriate appearance for visible finishes.
- Joinery and furniture makers - to select panels suitable for clear finishes, veneers or painted surfaces.
- Construction contractors - to determine suitability for visible panelling, ceilings and other architectural applications.
Related standards
- EN 635-3 is part of a family of standards addressing plywood appearance and may be used alongside other EN standards covering structural properties, durability, surface treatments and plywood made from different veneer species. Refer to CEN documentation for the complete set of related standards.
Keywords: EN 635-3:1995, plywood classification, softwood plywood, surface appearance, appearance class, visual assessment, finishing suitability, CEN standard, plywood quality.
Frequently Asked Questions
EN 635-3:1995 is a standard published by the European Committee for Standardization (CEN). Its full title is "Plywood - Classification by surface appearance - Part 3: Softwood". This standard covers: 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 softwood species. It does not apply to overlaid panels.
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 softwood species. It does not apply to overlaid panels.
EN 635-3:1995 is classified under the following ICS (International Classification for Standards) categories: 79.060.10 - Plywood. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 635-3:1995 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-1996
Vezan les - Klasifikacija po videzu površine - 3. del: Iglavci
Plywood - Classification by surface appearance - Part 3: Softwood
Sperrholz - Klassifizierung nach dem Aussehen der Oberfläche - Teil 3: Nadelholz
Contreplaqué - Classification selon l'aspect des faces - Partie 3: Bois résineux
Ta slovenski standard je istoveten z: EN 635-3:1995
ICS:
79.060.10 Vezan les Plywood
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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