The blowing sand test is performed to determine whether materiel can be stored and operated under blowing sand (149 to 850 mm particle size) conditions without experiencing degradation of its performance, effectiveness, reliability, and maintainability.
An airborne sand environment, associated most often with the hot-dry regions of earth, also exists seasonally in other regions. Naturally occurring sand storms are an important factor in the deployment of equipment. With the increased mechanization of military operations man’s activities cause more of a problem than does blowing sand purely associated with nature. An example of this would be a helicopter landing in the desert.
This method applies to any mechanical, electrical, electronic, electrochemical, and electromechanical devices that may be exposed to the effects of a dry sand laden atmosphere.
Abrasion of surfaces. Erosion of surfaces.
Degradation of electrical circuits. Clogging of openings and filters.
Physical interference with mating parts. Fouling of moving parts.
Test Variables
Air (wind) velocity Temperature
Sand composition Sand concentration
Test item configuration, operation and orientation Test duration.
Operation of the test item, during the test period, should be based on the use requirements of the test item
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