Overview
EN ISO 28199-1:2021 - Paints and varnishes - Evaluation of properties of coating systems related to the spray application process - Part 1: Vocabulary and preparation of test panels (ISO 28199-1:2021) is a CEN-endorsed international standard that defines terminology and standardizes methods for preparing test panels used to evaluate coating systems applied by spray. The document sets the foundation for consistent measurement of film properties such as film thickness, colour, surface texture, mottling and gloss, and supports reliable testing during research, development and production.
Key topics and requirements
- Scope and vocabulary: Establishes terms and definitions related to spray application and evaluation of coating materials to ensure consistent language across laboratories and industry.
- Test panel preparation: Specifies substrate selection, panel preparation procedures, coating application (including versions for perforated and non‑perforated panels), and conditioning prior to measurement.
- Measurement methods: Details required measurements and references existing standards for specific methods:
- Film thickness measurement (referenced: ISO 2808)
- Colour measurement (referenced: ISO 18314‑1)
- Gloss measurement (referenced: ISO 2813)
- Apparatus, calibration and sampling: Describes apparatus types (automatic painting machines, positioning devices), calibration needs and sampling procedures to ensure repeatability and traceability.
- Test procedure and evaluation: Covers recommended measurement patterns, number of panels, environmental test conditions, precision, evaluation and required elements of the test report.
- Document updates: Second edition (2021) supersedes the 2009 edition and includes added topics such as measurement of mottling and gloss, revised film‑thickness wedge descriptions and updated terminology.
Applications and users
EN ISO 28199-1:2021 is practical for organizations that need standardized evaluation of spray-applied coatings:
- Paint and varnish manufacturers (R&D and formulation teams)
- Automotive and industrial coatings developers
- Quality control and testing laboratories
- OEMs and contract coaters assessing process suitability and error analysis
- Surface finishing engineers responsible for process validation and troubleshooting
Benefits include improved comparability of test results, better process control for spray application, and clearer communication across supply chains.
Related standards
- ISO 2808 - film thickness measurement methods (referenced)
- ISO 18314‑1 - colour measurement (referenced)
- ISO 2813 - gloss measurement (referenced)
- ISO 28199‑2 and ISO 28199‑3 - companion parts addressing visual assessment, process hiding power, sagging, bubbles and other application-related effects
Keywords: EN ISO 28199-1:2021, paints and varnishes, coating systems, spray application, test panels, film thickness, surface texture, colour measurement, mottling, gloss, ISO 28199 series.
