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Porosity, true density#

Measurement Pore volume
Standard DIN EN 1936
Measurement object Porous materials like brick, lime stone, sandstone, concrete, plasters and renders, insulation materials, etc.

Technical data

Sample size Max. 1 cm³
Apparatus Heliumpycnometer AccuPyc II 1340 from Micromeretics

Special features

Accredited by DAkkS
The laboratory has a flexible accreditation according to DIN EN ISO/IEC 17025
Test laboratory moisture, mortar, radiation, emmissions
  Test report can be issued


More information


  • The true density of a material is defined as the mass of the dry material related to the volume of the solid matrix, which means minus the free accessible pore volume. The pore volume of the material sample is measured the heliumpycnometer. Helium is a inert gas and has a very small diameter, though all accessible pores of the material can be reached.
  • The porosity of a material can be calculated by knowing the bulk and true density.