NEN ISO 11093-8 : 2017
Current
The latest, up-to-date edition.
PAPER AND BOARD - TESTING OF CORES - PART 8: DETERMINATION OF NATURAL FREQUENCY AND FLEXURAL MODULUS BY EXPERIMENTAL MODAL ANALYSIS
12-01-2013
Describes 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 x internal diameter or not less than 2,0 mm; and - minimum length of core: 8 x internal diameter.
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.