CEN - EN ISO 8130-1
Coating powders - Part 1: Determination of particle size distribution by sieving
| Organization: | CEN |
| Publication Date: | 1 May 2019 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Paints and varnishes): | 87.040 |
scope:
This document specifies a method for the determination of the particle size distribution of coating powders by sieve analysis. Particle size distributions with a maximum of less than 100 μm is determined by laser diffraction, ISO 8130‑13. This method is used especially for determining the oversize material or for the presence of contamination and can be used as a quality control procedure ("go"/"no go" test) by checking the amount retained on a single sieve.
The following particle sizes are typical for coating powders, however the particle size can deviate depending on the application:
- thin-film technology: 1 μm to 63 μm;
- electrostatic coating: 10 μm to 200 μm;
- fluidizing-bed method: 100 μm and above.
NOTE Sieves with a mesh size smaller than 32 μm are not practical and are likely to become blind during use.
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