90.20 Standard under periodical review Oct 15, 2024
ISO
ISO/TC 35/SC 9 General test methods for paints and varnishes
International Standard
87.040 Paints and varnishes
This document specifies a method for determining the electrical conductivity and the electrical resistance of coating materials. The conductivity is usually measured for water-borne paints and varnishes, including electrodeposition coating materials, and the resistance is usually measured for solvent-borne paints and varnishes. If required, the resistivity of the coating material is calculated from either of these measurements. The method is applicable to products having a conductivity less than 5 µS/cm, corresponding to a resistivity greater than 200 kΩ⋅cm.
The conductivity of coating materials influences their processibility in the presence of an electric field. This is particularly important for electrodeposition paints and coating materials which are processed electrostatically.
WITHDRAWN
ISO 15091:2012
PUBLISHED
ISO 15091:2019
90.20
Standard under periodical review
Oct 15, 2024