GSO ISO 5629:2015
纸和纸板弯曲挺度的测定共振法

Paper and board -- Determination of bending stiffness -- Resonance method

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标准号

GSO ISO 5629:2015

发布

2015年

发布单位

GSO

当前最新

GSO ISO 5629:2015

 

 

适用范围

This International Standard specifies a method for the determination of bending stiffness using the resonance method. This method gives only a single result for each test piece tested, although in general, bending stiffness values may depend on which surface of the material forms the inner surface of the arc resulting from bending forces. The bending stiffness of a very wide range of papers and boards can be measured using this method. However, for some materials, such as those listed below, the measured numerical values may not be strictly identical with bending stiffness as defined in clause 3 : a) multi-ply papers and boards in which the component plies can move separately during a test ; b) papers and boards with appreciable curl, especially if the axis of the curl is in the long direction of the test piece; c) some soft papers with grammage below about 40 g/m2. This method is not applicable to corrugated boards.

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