ISO/TC 89 - Wood-based panels

This document establishes requirements for the specifications of blockboards and battenboards for general use, in dry, tropic dry/humid, and high-humid/exterior conditions. It includes requirements of materials, lay-up, physical and mechanical properties, bonding quality, formaldehyde release, conformity verification, and marking. The values listed in this document relate to product properties, but they are not characteristic values to be used in design calculations.

This document provides systems of classification of plywood panels based on general appearance and principal characteristics.

This document establishes the standard terms and definitions (including those relative to features and defects), the methods for the determination of physical characteristics and the tolerances for dimensions (length, width, thickness) for wood veneers, including natural, treated and multilaminar veneers, that can be obtained by slicing, rotary cutting or sawing. The specific definitions, properties and requirements concerning these treated, multilaminar veneers and laminated wood veneers are not included in this document.

This document specifies a procedure for determination of accelerated formaldehyde release from uncoated and coated wood-based panels using the gas analysis method. The procedure is also suitable for the testing of other materials (e.g. edge bands, floor coverings, foams, foils, laminated wood products, veneered wood products, coated wood products).

This document establishes general rules for the classification of plywood by its surface appearance. It concerns plywood made of hardwood including tropical and temperate hardwood, softwood and plywood derived from other lignocellulosic materials. It does not apply to overlaid plywood.

This document specifies the nature and limits of characteristics inherent in wood and manufacturing defects enabling the visual assessment of the plywood for allocation to an appearance class. This document applies to plywood, the surface veneers of which are made from hardwood species[1] including tropical and temperate hardwood. It does not apply to overlaid panels. [1] Conventionally, broadleaved species.

This document specifies the nature and limits of characteristics inherent in palm-plywood and manufacturing defects enabling the visual assessment of the plywood for allocation to an appearance class. This document applies to palm-plywood, the surface veneers of which are made from oil palm trunk.

This document specifies a test method to measure the formaldehyde concentrations in air from wood products under defined test conditions of temperature and relative humidity. Results obtained from this small-scale chamber test method are often used for quality assurance and can be comparable to, or can provide useful correlations to, results obtained from testing larger product samples in larger chamber test methods for wood products, such as the 1 m3 chamber method specified in ISO 12460-1. NOTE 1 This document is based on the general principles and methods of ASTM D 6007. NOTE 2 ISO 12460-1 for the 1 m3 chamber is the reference method for the determination of formaldehyde release. For factory production control the derived test methods according to this document, ISO 12460-3, ISO 12460-4 and ISO 12460-5 are used.

ISO 27769:2016 provides a classification matrix and related mandatory tests for two types of wet process fibreboard made from wood: softboards and hardboards and specifies the relevant manufacturing property requirements.

ISO 17064:2016 provides definitions and terminology applying to all types of fibreboard, particleboard and oriented strand board (OSB).

ISO 16895:2016 specifies a classification matrix, related mandatory tests and thickness ranges for ultra-low-, low-, medium- and high-density dry process wood-based fibreboard. It then provides the manufacturing property requirements for these types of uncoated fibreboard. The values listed in this International Standard relate to product properties used to classify fibreboards into one of four types (UDF, LDF, MDF and HDF, see Clause 3), one of four grades (GP, FN, BL and LB), for use in one of four service conditions (REG, MR1, MR2, and HMR). The values are not characteristic values to be used for design purposes. NOTE Fibreboards are broadly divided into two groups based on the manufacturing process, namely the dry process group and the wet process group (see Clause 3). Wet process fibreboards lie outside the scope of this International Standard.

ISO 12460-4:2016 specifies a desiccator method for the determination of the quantity of formaldehyde emitted from particleboard, fibreboard, plywood, oriented strand board (OSB) and wooden laminated flooring.

ISO 16893:2016 specifies a classification matrix and the related mandatory tests and thickness ranges to be applied to wood-based particleboard for general purposes, furniture, load-bearing applications and heavy-duty load-bearing applications. It then provides the manufacturing property requirements for these types of uncoated particleboard. The values listed in this International Standard relate to product properties used to classify particleboards into one of four grades (P-GP, P-FN, P-LB or P-HLB, see Clause 3), for use in three service conditions (REG, MR1 and MR2). The values are not characteristic values to be used for design purposes.

ISO 12460-5:2015 specifies an extraction method known as the "perforator method". It is used for the determination of the formaldehyde content of unlaminated and uncoated wood-based panels.

ISO 13608:2014 specifies the terms, classifications, requirements, test methods, marking, for decorative veneered plywood with natural wood veneer, coloured veneer, laminated veneer, multilaminar veneer, and other types of veneer as decorative surface and plywood as a core panel, where the surface veneer thickness is less than 0,55 mm.

ISO 1954:2013 specifies dimensional tolerances of plywood panels (length, width, thickness) and tolerances for edge straightness and squareness.

This part of ISO 10033 specifies requirements for determining the bonding quality class of Laminated Veneer Lumber (LVL) bonded with thermosetting resins, according to their intended end uses.

ISO 10033-1:2011 specifies test methods for determining the bonding quality of Laminated Veneer Lumber (LVL) bonded with thermosetting resin.

ISO 16894:2009 gives definitions, classifications and specifications for the manufacturing requirements of oriented strand board (OSB). The values given are used to classify OSB into one of four types, namely OSB type GP-REG, LB-REG, LB-MR or HLB-MR. The values are related to panel properties, but are not characteristic values to be used for design purposes.

ISO 27528:2009 specifies a method for determining the resistance of wood-based panels, of thickness 15 mm and greater, to the withdrawal of screws under axial load. NOTE ISO 27528:2009 establishes fastener holding performance of screws commonly used in applications involving wood-based panels used for building, furniture, cabinet making, joinery or other work in particular regions. Different screws will give different results.

ISO 18776:2008 specifies the requirements for Laminated Veneer Lumber (LVL) for general purposes and structural applications, in dry, tropical-dry/humid or high humidity/exterior conditions. Laminated Veneer Lumber (LVL) is a general description for an assembly of veneers laminated with an adhesive, in which the grain direction of the outer veneers and most other veneers is in the longitudinal direction. ISO 18776:2008 specifies requirements for the quality of veneers, bond durability, tolerances on dimensions, and structural characterization.

ISO 12466-2:2007 specifies requirements for determination of bonding quality class of plywood, blockboard, battenboard, and laminboard, bonded with thermosetting resins, according to their intended end uses.

ISO 12466-1:2007 specifies methods for determining the bonding quality of plywood, blockboard, battenboard, and laminboard, bonded with thermosetting resin, by shear testing.

ISO 12460-1:2007 specifies a 1 m3 chamber method for the determination of the formaldehyde emission from wood-based panels under defined conditions, relating to typical conditions in real-life.

ISO 12465:2007 establishes requirements for the specification of plywood for general and structural use, in dry, tropical dry/humid and high-humidity/exterior conditions. It includes requirements for the quality of veneer, glue bond, lay-up (construction), dimensions and tolerances, conformance verification and marking. The values listed in ISO 12465:2007 relate to product properties, but they are not characteristic values to be used in design calculations. Additional information on supplementary properties for certain applications is also given.

ISO 20585:2005 specifies methods for determining the bending strength of particleboards and fibreboards after immersion in hot water. Method A is applicable for water at 70 degrees Celsius and Method B for water at 100 degrees Celsius (boiling temperature).

ISO 16987:2003 specifies a test method for the determination of the moisture resistance of wood-based panels under cyclic test conditions.

ISO 9427:2003 specifies a method for determining the density of wood-based panels.

ISO 16998:2003 specifies a method of test for evaluating the bond quality of particleboards, OSB and fibreboards, intended for use in humid conditions.

ISO 16999:2003 specifies certain rules for the sampling and cutting of test pieces. ISO 16999:2003 does not cover the sampling and cutting of test pieces for the derivation of characteristic values for structural design. These tests are carried out on medium-sized test pieces.

ISO 16981:2003 specifies a method for assessing the surface soundness of coated wood-based panels and uncoated particle-boards, wet- and dry-process fibreboards and cement-bonded particle-boards.

ISO 16978:2003 specifies a method for determining the apparent modulus of elasticity and bending strength of wood-based panels in flatwise bending.

ISO 9426:2003 specifies methods for measuring the thickness, width and length, as well as the squareness, edge straightness and flatness of wood-based panels. It applies to full-size flat panels

ISO 9424:2003 specifies a method for measuring the thickness, length and width of test pieces of wood-based panels.

ISO 16985:2003 specifies a method for the determination of dimensional changes in wood-based panels, due to variations in relative humidity.

ISO 16983:2003 specifies a method for determining the swelling in thickness of flat-pressed or drum-pressed particle boards, fibre boards, OSB, and cement-bonded particle boards, after immersion in water.

ISO 16984:2003 specifies a method for determining the resistance to tension perpendicular to the plane of the panel, also known as "internal bond", of particle boards, OSB, fibre boards, and cement-bonded particleboards.

ISO 16979:2003 specifies a method for determining the moisture content of wood-based panels.

This part of ISO 2426 specifies the nature and limits of characteristics inherent in wood and manufacturing defects enabling the visual assessment of the plywood for allocation to an appearance class. This part of ISO 2426 applies to plywood, the surface veneers of which are made from softwood species. It does not apply to overlaid panels.

The purpose of the method specified is to obtain an indication of machinability by cutting tools. The principle is based on the complete combustion of test pieces and weighing the sand remaining in the desiccator at the end of the procedure. The tubular hearth used to ignite the test pieces is shown in the figure.

ISO 12460-3:2015 specifies a procedure for determination of accelerated formaldehyde release from uncoated and coated wood-based panels using the gas analysis method. The procedure is also suitable for the testing of other materials (e.g. edge bands, floor coverings, foams, foils, laminated wood products, veneered wood products, coated wood products).

ISO 13609:2014 establishes requirements for the specifications of blockboards and battenboards for general use, in dry, tropic dry/humid, and high-humid/exterior conditions. It includes requirements of materials, lay-up, physical and mechanical properties, bonding quality, formaldehyde release, conformity verification, and marking. The values listed in ISO 13609:2014 relate to product properties, but they are not characteristic values to be used in design calculations.

ISO 1096:2013 provides systems of classification of plywood panels based on general appearance and principal characteristics.

ISO 12460-5:2011 specifies an extraction method, known as the "perforator method", for the determination of the formaldehyde content of unlaminated and uncoated wood-based panels.

ISO 16893-2:2010 provides the manufacturing property requirements for uncoated particleboard.

ISO 16895-2:2010 provides the manufacturing property requirements for uncoated dry-process fibreboard.