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IMSBC CODE

Angle of Repose

Bulk granular materials when poured on a flat surface will create a conical pile. The internal angle between the surface of the pile and the horizontal surface is called as ‘angle of repose’. Angle of repose is depended on the density,  surface area,  and the shapes of the particle also the coefficient of friction.

angle of repose

angle of repose (Photo credit: pluckytree)

Antlion larvae’s sand pit works on critical angle of repose to catch its prey, see below image

IMSBC Code defines angle of repose as the maximum slope angle of non-cohesive (i.e., free-flowing) granular material. It is measured as the angle between a horizontal plane and the cone slope of such material.

Angle of repose of UN 1942 AMMONIUM NITRATE  is  27 deg to 42 deg

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About Shashi Kallada

24 years in Merchant Shipping Last 11 years working on Packaged Dangerous Goods *Ex Sailor *Ex P&O Nedlloyd Dangerous Goods Specialist *Ex Manager Global Dangerous Goods Maersk Line + MCC Transport + Mercosul line and Safmarine South African export) *A Freelance Photographer *An amateur Cyclist

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