ISO 10111:2000
Metallic and other inorganic coatings - Measurement of mass per unit area - Review of gravimetric and chemical analysis methods
- Standard No.
- ISO 10111:2000
- Release Date
- 2000
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 10111:2019
- Latest
- ISO 10111:2019
- Scope
- 1 General
This International Standard outlines general methods for determining the average surface density over a measured area of anodic oxide or of a coating deposited autocatalytically, mechanically, by chemical conversion, by electrodeposition, by hot dip galvanizing and by vacuum using gravimetric and other chemical analysis procedures that have attained some degree of national or international standardization.
A variety of procedures are described and include:
— gravimetric procedures for chemical or electrochemical dissolution of the coating or the substrate to determine the coating surface density;
— analytical procedures that utilize dissolution of the coating for photometric or volumetric determination of the coating surface density;
— non-destructive instrumental physical analysis of the coating to determine the surface density.
With the exception of the gravimetric method described in ISO 3892:— this International Standard does not give the measurement uncertainties of the methods cited.
2 Sources
The stripping methods cited in annex A are described in specifications in the open literature or have been used routinely by at least one laboratory.
3 Restrictions
The procedures described can be used for many coating-substrate combinations. They cannot be used where neither the coating nor substrate material can be completely removed, one from the other by chemical or physical means and there is a constituent common to both that is not readily separated (e.g. nickel phosphorus alloy on nickel).
NOTE The measurement of very thin coatings on very small pieces can result in a reduction in accuracy and a lack of repeatability. Several measurements using a combination of different procedures on similar samples might overcome this situation.
4 Limitations
In principle, the gravimetric procedures can be used to measure very thin coatings or to measure coatings over small areas, but not thin coatings over small areas. The limits depend on the required accuracy; e.g., 2,5 mg/cm
of coating might require 1 cm , but 0,1 mg/cm of coating would require 25 cm to obtain 2,5 mg of coating. These limitations do not apply to the chemical analysis methods. The gravimetric method does not indicate the presence of bare spots or sites with thicknesses lower than the specified minimum in the measuring areas. In addition, the single value obtained from each measuring area is the mean thickness of that area. There can be no further mathematical analysis of this single value, for example, for statistical process control purposes.
ISO 10111:2000 Referenced Document
- ISO 2079:1981 Surface treatment and metallic coatings; General classification of terms Trilingual edition
- ISO 2080:1981 Electroplating and related processes; Vocabulary Trilingual edition
- ISO 2081:1986 Metallic coatings; Electroplated coatings of zinc on iron or steel
- ISO 2082:1986 Metallic coatings; Electroplated coatings of cadmium on iron or steel
- ISO 2093:1986 Electroplated coatings of tin; Specification and test methods
- ISO 2106:1982 Anodizing of aluminium and its alloys; Determination of mass per unit area (surface density) of anodic oxide coatings; Gravimetric method
- ISO 3892 Conversion coatings on metallic materials - Determination of coating mass per unit area - Gravimetric methods
- ISO 4522-1:1985 Metallic coatings; Test methods for electrodeposited silver and silver alloy coatings; Part 1: Determination of coating thickness
- ISO 4524-1:1985 Metallic coatings; Test methods for electrodeposited gold and gold alloy coatings; Part 1 : Determination of coating thickness
- ISO 7587:1986 Electroplated coatings of tin-lead alloys; Specification and test methods
- ISO 8407:1991 Corrosion of metals and alloys; removal of corrosion products from corrosion test specimens
ISO 10111:2000 history
- 2019 ISO 10111:2019 Metallic and other inorganic coatings — Measurement of mass per unit area — Review of gravimetric and chemical analysis methods
- 2000 ISO 10111:2000 Metallic and other inorganic coatings - Measurement of mass per unit area - Review of gravimetric and chemical analysis methods
