GB/T 22906.7-2008 "Testing of cores - Part 7: Determination of flexural modulus by three-point method" specifies the method for determining the flexural modulus of paper cores using the three-point method. This standard applies to paper cores with an inner diameter ranging from 50 mm to 350 mm and with wall thickness and length meeting the specified requirements. The sample is placed between two support points, and a concentrated load is applied at the center. The deflection is measured to calculate the flexural modulus. The standard clearly defines the support span, loading rate, and measurement accuracy to ensure the reliability of the test results.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Y30 | ICS | 85.010 |
| Release Date | 2008-12-30 00:00:00 | Implementation Date | 2009-09-01 00:00:00 |
