The method is based on a determination of the mass and the volume of a test portion. The pyknometer (in accordance with ISO 787-10) has to use a liquid that completely wets the product under test without swelling or dissolving it.
DS/EN ISO 8130-3:2011 history
2021DS/EN ISO 8130-3:2021 Coating powders – Part 3: Determination of density by liquid displacement pyknometer (ISO 8130-3:2021)
2011DS/EN ISO 8130-3:2011 Coating powders - Part 3: Determination of density by liquid displacement pyknometer