NBN EN ISO 8502-3 : 1999

Committees responsible
National foreword
Introduction
1 Scope
2 Normative references
3 Definition
4 Principle
5 Apparatus and materials
6 Procedure
7 Test report
Annex A (informative) Spring-loaded roller
Figure 1 - Pictorial references corresponding to dust
           quality ratings 1, 2, 3, 4 and 5
Figure A.1 - Sectional side view of roller
Figure A.2 - Plan view of adjustable-height shaft and top
             plug
Figure A.3 - Sectional front view of lower part of roller
Figure A.4 - Calibration at the 4 kg and 5 kg graduations
Table 1 - Dust size classes

Describes a method for the assessment of dust remaining on cleaned steel surfaces prepared for painting. Gives descriptive classes for the assessment of the average size of the dust particles. Coverage includes procedure, diagrams, and apparatus and materials.