DIN Standards Committee Coatings and Coating Materials
DIN EN ISO 8130-2
Coating powders - Part 2: Determination of density by gas comparison pyknometer (referee method) (ISO 8130-2:1992); German version EN ISO 8130-2:2010
Pulverlacke - Teil 2: Bestimmung der Dichte mit einem Gasvergleichspyknometer (Schiedsverfahren) (ISO 8130-2:1992); Deutsche Fassung EN ISO 8130-2:2010
Overview
This part of ISO 8130 specifies a method for the determination of the density of coating powders using a gas comparison pyknometer. The method can be used for all types of coating powder and is simple to carry out. However, it requires more expensive instrumentation than is often used for density determinations. The density of coating powders can also be determined using the liquid displacement pyknometer method described in ISO 8130-3. The apparatus is relatively inexpensive, but the liquid displacement pyknometer method is liable to give erroneous results, particularly if the powder swells in contact with the displacement liquid used or the displacement liquid does not totally displace the air between the powder particles. The liquid displacement method is much slower in execution and less accurate. It is only used if the same results will be obtained as for the gas comparison pyknometer method. The Committee responsible for this standard is NA 002-00-07 AA "Allgemeine Prüfverfahren für Beschichtungsstoffe und Beschichtungen" ("General test methods for coating materials and coatings") at DIN.
Document: references other documents
Document: referenced in other documents
Responsible national committee
NA 002-00-07 AA - General test methods for coating materials and coatings
Responsible european committee
CEN/TC 139 - Paints and varnishes
Responsible international committee
ISO/TC 35/SC 9 - General test methods for paints and varnishes
