Testing - Bench Scale
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POWDER FLOWABILITY, BULK SOLIDS PROPERTIES, and SEGREGATION TENDENCIES

Using specialized equipment, we run tests under conditions that accurately simulate the existing or the proposed process conditions. If a material is likely to change during shipment to our laboratories, we conduct the tests at your plant on freshly obtained samples.

Dr. Andrew Jenike developed the science for measuring bulk solids properties and utilizing the data for real world applications. To date, we have tested more than 10,000 bulk solids. Common tests include:

Flow properties – powder flowability; bulk equipment design data
Segregation tendencies – separation of particles and mixtures
Caking – when a material agglomerates, lumps, or clumps
Particle properties – shape, size, true density, hardness etc.
Wear – abrosive wear against surfaces
Fluidization – material’s ability to fully aerate
Attrition – particle’s tendency to break-down

When evaluating powder flowability or bulk solids properties, it is critical to replicate actual or expected process conditions. Some important material testing variables we consider include:

	Test variables		Available range
	Time at rest		Continuous flow to weeks of storage
	Pressure		Low (pharmaceutical) to high (stockpiles)
	Temperature		-30° to 2,200° F (-34° to 1,200° C)
	Humidity		98% to less than 5% RH
	Atmosphere		Air, inert, a range of process gases

Segregation tendencies of a mixture

Ring shear tester for measuring bulk solids properties

Detail of ring shear tester cell