Mechanical
Rheological
Heat resistance
Thermal analysis
Physical
Ball indentation
NanoFlash™-test method
Determination of density
Determination of water content
Scratch Resistance
Electrical
Combustion (Fire)
Thermal aging
Weathering
Optical
Chemical resistance
Shrinkage
Standards:
DIN EN ISO 1183-1
DIN EN ISO 60
DIN 53479
ASTM D792
or corresponding standards

Determination of density
The choice of method for determining density is based on the type of material as well as on the size and shape of the sample. A further criterion is the required level of precision. The density is determined on the basis of the calculated volume and the mass of the sample and is given in g/cm3.

Hydrometer method:

This method uses solid samples or samples from moldings. The volume is calculated by dispersing and agitating the solid in distilled water or other suitable liquid. The degree of precision: 3 decimal places.

Air comparison pycnometer:

This method uses powders, porous and irregularly shaped solids. It involves calculating the volume of air displaced by the sample in a measuring cylinder. The degree of precision: 2 decimal places.

Apparent density:

The apparent density of granules, powdered or free-flowing materials is calculated by filling a measuring beaker with a stipulated volume of the sample material and weighing, adhering to the method described in the standard. The apparent density is given in g/cm3.
The apparent density is, among other things, a criterion applied in the processing of injection molding compounds and provides a basis on which to calculate a cavity.