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ISO 11093-8:2017

ISO 11093-8:2017

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Paper and board — Testing of cores — Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis

Published By Publication Date Number of Pages
ISO 2017-06 14
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ISO 11093-8:2017 specifies a method for the determination of the flexural modulus by using experimentally measured natural frequencies in the free-free mode of transverse vibration of cylindrical paper and board cores, which meet the following criteria:

– internal diameter:

50 mm to 350 mm;

– minimum wall thickness:

0,02 × internal diameter or not less than 2,0 mm;

– minimum length of core:

8 × internal diameter.

NOTE For the determination of the flexural modulus by the three-point method, see ISO 11093-7.

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ISO 11093-8:2017
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