This document describes methods for measuring the thickness of coatings applied to a substrate. Methods for determining wet-film thickness, dry-film thickness and the film thickness of uncured powder layers are described. For each method described, this document provides an overview of the field of application, existing standards and the precision. Information on measuring film thickness on rough surfaces is given in Annex B. Information on measuring film thickness on wooden substrates is given in Annex C.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Determination of wet-film thickness
4.1 General
4.2 Mechanical methods
4.3 Gravimetric method
4.4 Photothermal method
5 Determination of dry-film thickness
5.1 General
5.2 Mechanical methods
5.3 Gravimetric method
5.4 Optical methods
5.5 Magnetic methods
5.6 Radiological method
5.7 Photothermal method
5.8 Acoustic method
5.9 Electromagnetic method
6 Determination of thickness of uncured powder layers
6.1 General
6.2 Gravimetric method
6.3 Magnetic methods
6.4 Photothermal method
7 Test report
Annex A Overview of methods (informative)
Annex B Measurement of film thickness on rough surfaces (informative)
Annex C Factors affecting the precision of readings obtained when measuring on wooden substrates (informative)
ISO 3611:2010 Geometrical product specifications (GPS) -- Dimensional measuring equipment: Micrometers for external measurements -- Design and metrological characteristics
ISO 4618:2014 Paints and varnishes -- Terms and definitions
ISO 8503-1:2012 Preparation of steel substrates before application of paints and related products -- Surface roughness characteristics of blast-cleaned steel substrates -- Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces
ISO 3611:2010 Geometrical product specifications (GPS) -- Dimensional measuring equipment: Micrometers for external measurements -- Design and metrological characteristics
ISO 4618:2014 Paints and varnishes -- Terms and definitions
ISO 8503-1:2012 Preparation of steel substrates before application of paints and related products -- Surface roughness characteristics of blast-cleaned steel substrates -- Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces