DIN ISO 11093-8:2018-10
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Paper and board - Testing of cores - Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis (ISO 11093-8:2017)
Hardcopy , PDF
English
02-11-2018
This document specifies a method for the determination of the flexural modulus by using experimentallymeasured 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.
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