标准编号：ISO 11093-7:2011
中文名称：纸和纸板 纸芯的测定 第7部分：弹性模量的测定（三点法）
英文名称：Paper and board — Testing of cores — Part 7: Determination of flexural modulus by the three-point method
发布日期：2011-09
标准范围
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.
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