Reference number
ISO 11093-8:2017
ISO 11093-8:2017
© ISO 2025
International Standard
ISO 11093-8:2017
Paper and board — Testing of cores — Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis
Edition 3
2017-06
2017-06
ISO 11093-8:2017
72342
Published
(Edition 3, 2017)
This publication was last reviewed and confirmed in 2022.
Therefore this version remains current.
Abstract
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.
Life cycle
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Previously
WithdrawnISO 11093-8:2012
WithdrawnISO 11093-8:2012/Cor 1:2013
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Now