Granules in Glass Bottles – powder segregation test

A clean, square illustration of two clear bottles under funnels. One bottle fills quickly, forming a cone. The other fills slowly, forming layered bands. Both have a central sampling tube for top, middle, and bottom draws. The scene visualizes a simple powder segregation test used to spot percolation and trajectory sorting.
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Martijn Daalder is the founder of PowderTechnology.info. He combines editorial experience with a strong industry network to publish practical, technically grounded content for professionals working with powders, granules, and bulk solids.