Paper and board. Testing of cores - Determination of bending strength by the three-point method

Paper and board. Testing of cores - Determination of bending strength by the three-point method

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1   Scope

This part of ISO 11093 specifies a three-point method for the determination of the bending strength of cylindrical board cores which meet the following criteria:
  • - internal diameter: 50 mm to 300 mm;
  • - minimum wall thickness: 5 mm;
  • - minimum test length of core (span): 1 100 mm.