We have 5 methods:
1.density gradient column
2.archimedes principle
3.pycnometry with liquids
4.gas pycrometry
5.???? i don't know
Pycnometry is the best and accurate method for measuring fiber density Both Water pycnometry and gas pycnometry, are good.
The best procedures for density determination are the buoyancy and displacement methods, both of which are based on the Archimedean Principle.
density gradient column is suitable for determining fibre density
If your fibers are uniformly round shaped, then by measuring the volume of the fiber by measuring its cross-sectional area and length, and and then weighing you can measure the density.
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