Information service
87 Paint and colour industries
New standards
EVS-EN ISO 11998:2026
Paints and varnishes - Determination of wet-scrub resistance of coatings (ISO 11998:2026)
Scope:
This document specifies an accelerated method for the determination of wet-scrub resistance. The determination of cleanability is not covered in the scope of this document.
NOTE The ability of coatings to withstand wear caused by repeated cleaning operations is an important consideration both from a practical point of view and when comparing and rating such coatings. Since wet-scrub resistance depends not only on the quality of a coating but also on the substrate, the method of application, the drying conditions and other factors, the results obtained are not directly transferable to actual practice. In this document, the evaluation of the coating is based on a defined substrate, a fixed application method, specified drying conditions and a defined method of wet scrubbing.
Base documents:
ISO 11998:2026; EN ISO 11998:2026
Replaces:
EVS-EN ISO 11998:2006
EVS-EN ISO 787-24:2026
General methods of test for pigments and extenders - Part 24: Photometric methods for determining the relative tinting strength of coloured pigments and the relative scattering power of white pigments (ISO 787-24:2026)
Scope:
This document specifies photometric methods of test for comparing in the visible spectrum:
a) the tinting strength of two similar coloured pigments dispersed in an alkyd resin without a drier;
b) the scattering power of two white pigments of the same type dispersed in an alkyd resin without a drier.
This document does not apply to the comparison of coloured pigments that on reduction differ greatly in colour.
a) the tinting strength of two similar coloured pigments dispersed in an alkyd resin without a drier;
b) the scattering power of two white pigments of the same type dispersed in an alkyd resin without a drier.
This document does not apply to the comparison of coloured pigments that on reduction differ greatly in colour.
Base documents:
ISO 787-24:2026; EN ISO 787-24:2026
Replaces:
EVS-EN ISO 787-24:2000
ISO 11998:2026
Paints and varnishes — Determination of wet-scrub resistance of coatings
Scope:
This document specifies an accelerated method for the determination of wet-scrub resistance. The determination of cleanability is not covered in the scope of this document.
NOTE The ability of coatings to withstand wear caused by repeated cleaning operations is an important consideration both from a practical point of view and when comparing and rating such coatings. Since wet-scrub resistance depends not only on the quality of a coating but also on the substrate, the method of application, the drying conditions and other factors, the results obtained are not directly transferable to actual practice. In this document, the evaluation of the coating is based on a defined substrate, a fixed application method, specified drying conditions and a defined method of wet scrubbing.
NOTE The ability of coatings to withstand wear caused by repeated cleaning operations is an important consideration both from a practical point of view and when comparing and rating such coatings. Since wet-scrub resistance depends not only on the quality of a coating but also on the substrate, the method of application, the drying conditions and other factors, the results obtained are not directly transferable to actual practice. In this document, the evaluation of the coating is based on a defined substrate, a fixed application method, specified drying conditions and a defined method of wet scrubbing.
Base documents:
Replaces:
ISO 11998:2006
ISO 787-24:2026
General methods of test for pigments and extenders — Part 24: Photometric methods for determining the relative tinting strength of coloured pigments and the relative scattering power of white pigments
Scope:
This document specifies photometric methods of test for comparing in the visible spectrum:
a) the tinting strength of two similar coloured pigments dispersed in an alkyd resin without a drier;
b) the scattering power of two white pigments of the same type dispersed in an alkyd resin without a drier.
This document does not apply to the comparison of coloured pigments that on reduction differ greatly in colour.
a) the tinting strength of two similar coloured pigments dispersed in an alkyd resin without a drier;
b) the scattering power of two white pigments of the same type dispersed in an alkyd resin without a drier.
This document does not apply to the comparison of coloured pigments that on reduction differ greatly in colour.
Base documents:
Replaces:
ISO 787-24:1985
Replaced standards
EVS-EN ISO 11998:2006
Paints and varnishes - Determination of wet-scrub resistance and cleanability of coatings
Scope:
The ability of coatings to withstand wear caused by repeated cleaning operations and to withstand penetration by soiling agents is an important consideration both from a practical point of view and when comparing and rating such coatings. This International Standard describes an accelerated method for the determination of wet-scrub resistance. With regard to the cleanability of coatings, only the method itself and not the soiling agents are specified.
Base documents:
ISO 11998:2006; EN ISO 11998:2006
Replaced:
EVS-EN ISO 11998:2026
EVS-EN ISO 787-24:2000
General methods of test for pigments and extenders - Part 24: Determination of relative tinting strength of coloured pigments and relative scattering power of white pigments - Photometric methods
Scope:
The method specified provide an instrumental alternative to those described in ISO 787/16 and ISO 787/17. Equal masses of a coloured material are separately dispersed in the same mass of the same white pigment paste. The reflectivity of each dispersion is measured photometrically. From the corresponding values of K/S the relative tinting strength is given. For measurement of the relative scattering power equal masses of a white test material and an agreed reference pigment are separately dispersed in the same mass of the same black pigment paste. The reflectivity of each dispersion is measured photometrically at 550 nm. From the corresponding values of K/S the relative scattering power is given.
Base documents:
ISO 787-24:1985; EN ISO 787-24:1995
Replaced:
EVS-EN ISO 787-24:2026
ISO 11998:2006
Paints and varnishes -- Determination of wet-scrub resistance and cleanability of coatings
Scope:
The ability of coatings to withstand wear caused by repeated cleaning operations and to withstand penetration by soiling agents is an important consideration both from a practical point of view and when comparing and rating such coatings. ISO 11998:2006 describes an accelerated method for the determination of wet-scrub resistance. With regard to the cleanability of coatings, only the method itself and not the soiling agents are specified.
Base documents:
Replaced:
ISO 11998:2026
ISO 787-24:1985
General methods of test for pigments and extenders -- Part 24: Determination of relative tinting strength of coloured pigments and relative scattering power of white pigments -- Photometric methods
Scope:
The method specified provide an instrumental alternative to those described in ISO 787/16 and ISO 787/17. Equal masses of a coloured material are separately dispersed in the same mass of the same white pigment paste. The reflectivity of each dispersion is measured photometrically. From the corresponding values of K/S the relative tinting strength is given. For measurement of the relative scattering power equal masses of a white test material and an agreed reference pigment are separately dispersed in the same mass of the same black pigment paste. The reflectivity of each dispersion is measured photometrically at 550 nm. From the corresponding values of K/S the relative scattering power is given.
Base documents:
Replaced:
ISO 787-24:2026