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Homepage>BS Standards>85 PAPER TECHNOLOGY>85.060 Paper and board>BS ISO 11093-7:2011 Paper and board. Testing of cores Determination of flexural modulus by the three-point method
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immediate downloadReleased: 2011-10-31
BS ISO 11093-7:2011 Paper and board. Testing of cores Determination of flexural modulus by the three-point method

BS ISO 11093-7:2011

Paper and board. Testing of cores Determination of flexural modulus by the three-point method

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Standard number:BS ISO 11093-7:2011
Pages:16
Released:2011-10-31
ISBN:978 0 580 68907 9
Status:Standard
DESCRIPTION

BS ISO 11093-7:2011


This standard BS ISO 11093-7:2011 Paper and board. Testing of cores is classified in these ICS categories:
  • 85.080.30 Cardboard
  • 85.060 Paper and board

This part of ISO 11093 specifies a method for the determination, by the three-point method, of the flexural modulus of cylindrical paper and board cores which meet the following criteria:

internal diameter: 50 mm to 350 mm;
minimum wall thickness: 0,05 × internal diameter, but not less than 10,0 mm;
minimum length of core: 10 × internal diameter, but not less than 1 000 mm.

If the flexural modulus has to be used for the calculation of a paper core’s natural frequency, ISO 11093-8[2] applies instead of this International Standard.