This European Standard specifies the requirements for non load-bearing extruded particleboards for use in dry conditions.
NOTE Dry conditions are defined in terms of service class 1 of EN 1995-1-1 which is characterized by a moisture content in the material corresponding to a temperature of 20°C and a relative humidity of the surrounding air only
exceeding 65% for a few weeks per year. Boards of this type are only suitable in biological hazard class 1 of EN 335-3.