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Homepage>ISO Standards>ISO 11093-8:2017-Paper and board — Testing of cores-Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis
download between 0-24 hoursReleased: 2017
ISO 11093-8:2017-Paper and board — Testing of cores-Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis

ISO 11093-8:2017

ISO 11093-8:2017-Paper and board — Testing of cores-Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis

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Standard´s number:ISO 11093-8:2017
Pages:8
Edition:3
Released:2017
DESCRIPTION

ISO 11093-8:2017


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.