ISO 8130-1-2019 Powder coatings – Part 1: Determination of particle size distribution by screening

A Preface
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This document is prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General Test methods for paints and varnishes.

ISO 8130-1-2019 Powder coatings – Part 1: Determination of particle size distribution by screening

The second edition cancels and replaces the technically revised first edition (ISO 8130-1:1992).

Compared with the previous edition, the main changes are as follows:

– Added “Terms and definitions” clause;

– added the “principles” clause;

– Increased selection of screening methods and screening selectivity;

– Increased manual screening and screening using vibration mechanism;

— The text has been edited and revised, and normative references have been updated.

A list of all parts in the ISO 8130 series can be found on the ISO website.

Any feedback or questions regarding this document should be directed to the user’s national standards body. A full list of these agencies can be found at

1 Scope
This document specifies the method for determining the particle size distribution of paint powders by screening analysis. Particle size distributions with a maximum size of less than 100 μm were determined by laser diffraction ISO 8130-13. This method is particularly useful for determining oversized materials or the presence of contamination and can be used as a quality control procedure (” pass “/” fail “test) by examining the amount retained on individual sieves.

The following particle sizes are typical for paint powders, but particle sizes may vary depending on the application:

– Film technology: 1 μm to 63 μm;

– Electrostatic coating: 10 μm to 200 μm;

— Fluidized bed method: 100μm and above.

Note that sifters with mesh sizes smaller than 32μm are not practical and may become blind during use.

ISO 8130-1-2019 Powder coatings – Part 1: Determination of particle size distribution by screening

2 Normative references
The following documents are referenced in the text in such a way that some or all of their contents constitute the requirements of this document. For dated references, only the cited version applies. For undated references, the new version of the reference (including any revisions) applies.

ISO 565, Nominal dimensions of test sieves – wire cloth, perforated metal plates and electroforming plates – openings

ISO 3310-1, Test screens – Technical requirements and tests – Part 1: Test screens for wire cloth

ISO 3310-2, Test screens – Technical requirements and tests – Part 2: Test screens for perforated metal plates

ISO 8130-14, coating powders — Part 14: Vocabulary

ISO 15528, Paints, varnishes and raw materials for paints and varnishes – Sampling

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8130-14 apply.

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