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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
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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.