In this field you select the material's density in kg/dm3 for weight calculation.
You can use the procedure called Densities, in the Global Settings module, which allows you to register densities for materials that weight calculations are often performed. These will then appear in this list box. By using the setting called Default density for weight calculation (kg/dm3), under Preparation under the Manufacturing tab in the Settings procedure, you can select the density that shall be set by default in this field.
You can also enter a density directly in the field. The density that you enter directly in this field will only be saved for that particular material row.