(BS) EN 323 : 1993 Wood-based panels – Determination of density This specifies a method for determining the density of test pieces of wood-based panels.  These results may be used to estimate the density of wood-based panels according to EN 326 -1 : Wood-based panels – Sampling, cutting and inspection – Sampling and cutting of test pieces and expression of test …

(BS) EN 318 : 2002 Wood-based panels – Determination of dimensional changes associated with changes in relative humidity This specifies a method for determining dimensional changes in wood-based panels due to changes in the relative humidity of the air.  This is measured between 65% relative humidity and 85% relative humidity in adsorption and 65% relative humidity and 30% relative humidity in …

(BS) EN 317 : 1993 Particleboards and fibreboards – Determination of swelling in thickness after immersion in water Despite its title, the standard is applicable to Oriented Strand Board.  It specifies a method of determining the swelling in thickness of flat-pressed or drum-pressed particleboards including OSB. Swelling in thickness is determined by measuring the increase in thickness of the test piece …