AS/NZS 1080.3:2000 (R2016) pdf free download

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AS/NZS 1080.3:2000 (R2016) pdf free download.Timber – Methods of test Density.
This International Standard specifies a method for determining the density (ratio of mass to volume) of wood for physical and mechanical tests both at the moisture content at the time of test and in the absolutely dry condition, as well as the conventional density (ratio of mass in the absolutely dry condition to volume of the test piece with moisture content greater than or equal to the fibre saturation point).
Determination of the mass of the test piece by weighing and of its volume by measurement of its dimensions or by another method. Calculation of the mass of a unit volume of the wood.
4.1 Measuring instrument capable of determining the dimensions of the test pieces to an accuracy of 0,1 mm.
4.2 Balance capable of weighing to an accuracy of 0.01 g.
4.3 Equipment for the determination of moisture content in accordance with ISO 3130.
6.1 Determination of density at the moisture content at
the time of test
Determine the mass of the test pieces to an accuracy of 0.01 g. Measure the sides of the cross-section and the length of the test pieces along the axes of symmetry to the nearest 0,1 mm. The volume of the test pieces may be determined by another method to an accuracy of 0,01 cm3. Determine the moisture content of the test pieces according to ISO 3130. Take the whole test piece as the sample for the determination of moisture content.
6.2 Determination of density in the absolutely dry condition
Dry the test pieces gradually to constant mass to minimize their deformation and splitting. Carry out the weighing and measuring operations immediately after drying, in accordance with 6.1.AS/NZS 1080.3:2000 (R2016) pdf free download.

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