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BOS 271:2007


The mechanical stress grading of softwood timber (flexural method) – Method of test

SKU: BOS 271:2007 Category: Product ID: 28527

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This code of practice covers the mechanical stress grading, by the determination of stiffness in bending, of solid timber (free from glued or other joints) derived from trees of the genus Pinus grown in Southern Africa. NOTE 1 The titles of standards referred to by number in the code are given in annex A.
NOTE 2 Stress grades in accordance with this code do not relate to any properties of a piece of timber other than strength (e.g. appearance, warp, size of defects, etc.).
NOTE 3 In the case of a visually graded piece of timber that is subsequently mechanically stress graded, the values of the strength properties allocated to the mechanical stress grade should be considered to be more accurate than those allocated to the visual grade.

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