Mass occupancy

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As mass density , also mass coating , mass coating , mass per unit area , mass per unit area or basis weight is the ratio of mass and surface of a layer. The SI unit of mass occupancy is kg / .

In the paper and printing industry as well as in the fabric processing industry, the terms square meter weight and grammage are common, given in g / m².

calculation

Mass occupancy as a ratio of mass and area :

For homogeneous density distributions , the mass allocation can be transformed to:

with length

For inhomogeneous density distributions , the mass occupancy can be calculated as an integral over density and path :

Physical fields of application are the absorption of radiation (see mass attenuation coefficient ) and the calculation of vibrations of plates and membranes .