ISO 8130-3-2021 – Powder coatings – Part 3: Determination of density in liquid replacement bottles

A Preface
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ISO 8130-3-2021 – Powder coatings – Part 3: Determination of density in liquid replacement bottles

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This document has been prepared by Technical Committee ISO/TC 35 (Paints and Varnishes), Subcommittee SC 9 (General test methods for paints and discolorations), in cooperation with Technical Committee CEN/TC 139 (Paints and varnishes) of the European Committee for Standardization (CEN), in accordance with the Technical Cooperation Agreement between ISO and CEN (Vienna Agreement).

The second edition cancels and replaces the technically revised first edition (ISO 8130-3:1992). Compared with the previous edition, the main changes are as follows:

– Scope has been edited and revised;

– Added terms and definitions (Article 3);

– The reference values for specific gravity bottles have been changed from ISO 787-10 to ISO 2811-1;

– Removed the use of acetone to clean the specific gravity bottle;

– The filling sequence of the specific gravity bottle has been changed;

– The acceptable difference between two results (article 9) is given as a percentage;

— 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

ISO 8130-3-2021 – Powder coatings – Part 3: Determination of density in liquid replacement bottles

1 Scope
This document provides for the determination of the density of paint powder by the liquid displacement flask method. The method is based on the determination of the mass and volume of the test portion.

The density is < Coating powder of 1 g/cm3 can be measured according to ISO 1183-1 and appropriate methods.

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 2811-1, Paints and varnishes — Determination of density — Part 1: Specific gravity bottle method

ISO 3696, analytical laboratory water use – specifications and test methods

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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