BS 300:2006 pdf download – Oriented Strand Boards (OSB) — Definitions, classification and specifications 1 Scope This European Standard applies to Oriented Strand Boards (OSB). lt defines terms,establishes aclassification and specifies requirements. The values listed in this European Standard relate to product properties but they are not characteristic valuesto be used in design calculations. NOTE Test methods for determination of mechanical properties for structural purposes are given in EN 789.Determination of characteristic values of mechanical properties and density for structural purposes is given in EN 1058.Design characteristic values for OSB are given in EN 12369-1. Information on supplementary properties is given in Annex c. Normative references The following referenced documents are indispensable for the application of this document.For datedreferences,only the edition cited applies. For undated references,the latest edition of the referenceddocument (including any amendments) applies. EN 120, Wood-based panels – Determination of formaldehyde content – Extraction method called theperforator method EN 310,Wood-based panels – Determination of modulus of elasticity in bending and of bending strengthEN 317, Particleboards and fibreboards – Determination of swelling in thickness after immersion in water EN 318,Wood-based panels – Determination of dimensional changes associated with changes in relative hu-midity EN 319,Particleboards and fibreboards – Determination of tensile strength perpendicular to the plane of theboard EN 320, Fibreboards – Determination of resistance to axial withdrawal of screws EN 321, Wood based panels – Determination of moisture resistance under cyclic test conditionsEN 322, Wood-based panels – Determination of moisture content EN 323, Wood-based panels – Determination of density EN 324-1, Wood-based panels – Determination of dimensions of boards – Part 1: Determination ofthickness, width and length EN 324-2, Wood-based panels – Determination of dimension of boards – Part 2: Determination ofsquareness and edge straightness EN 326-1, Wood-based panels – Sampling, cutting and inspection – Part 1:Sampling and cutting of test piecesand expression of test results EN 326-2, Wood-based panels – Sampling, cutting and inspectionPart 2:Quality control in the factory EN 326-3,Wood-based panels – Sampling,cutting and inspection – Part 3: Inspection of an isolated lot ofpanels 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13986:2004 and the following apply. 3.1 Oriented Strand Board (OSB) multi-layered board mainly made from strands of wood together with a binder. The strands in the external layer are aligned and parallel to the board length or width. The strands in the internal layer or layers...
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