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Military Standard Sand Dust Test

Sand and dust chamber suitable to examine the seal performance of products shell, it is mainly simulate the affection from sand storm weather ,such as auto parts, seals, electric meters industries etc.

According to IEC60068-2-8,the dust and sand test is structured into three groups:

La:Non-abrasive fine dust.A test which is primarily oriented towards investigation of the seals of the test specimen. The test specimen is exposed to a very fine dust in the form of talc or an equivalent.The effects of temperature cycling resulting in a pressure difference between the inside and outside of the specimen may be reproduced.

Lb:Free setting dust. A test which is oriented towards investigation of the effects when simulating conditions at sheltered locations.The test specimen is exposed to a low density dust atmosphere created by the intermittent injection of a small quantity of dust which is allowed to fall by gravity onto the specimen.

Lc: Blowing dust and sand.A test which is oriented towards investigation of the seals and the effect of erosion when simulating outdoor and vehicle conditions,The test specimen is exposed to either a turbulent or a laminar air flow to which is added a quantity of dust,sand or a dust/sand mixture.

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