ISO 2812-4-2017 “Paints and varnishes — Determination of liquid resistance — Part 4: Sampling method”

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This document has been prepared by the Technical Committee ISO/TC 35, Paints and Varnishes, SC 9, General Test Methods for Paints and Varnishes.

The second edition cancelled and replaced the first edition (ISO 2812-4:2007), which was a minor revision. The changes from the previous edition are as follows: CAS numbers have been added to the reagents listed in Appendix A and terms and definition clauses have been added.

A list of all the parts in the ISO 2812 series can be found on the ISO website.

ISO 2812-4-2017 “Paints and varnishes — Determination of liquid resistance — Part 4: Sampling method”

1 range
This document specifies the point-sample method used to determine the resistance of single – or multilayer coating material systems to the effects of liquid or paste products.

These methods enable the tester to determine the effect of the test substance on the coating and, if necessary, to assess damage to the substrate.

2 Normative references
The following files are referenced in the text in such a way that some or all of the content constitutes the requirements of this document. For dated references, citation-only versions apply. For undated references, the latest version of the reference (including any revisions) applies.

ISO 1513, Paints and varnishes – Examination and preparation of test samples

ISO 1514, Paints and varnishes — Standard panels for testing

ISO 2808, Paints and varnishes – determination of film thickness

ISO 3270, Paints and varnishes and their Raw materials – Regulate and test temperature and humidity

ISO 4618, Paints and varnishes — Terms and definitions

ISO 4628-1, Paints and varnishes – Assessment of coating degradation – Designation of intensity of uniform variation in number and size of defects and appearance – Part 1: General introduction and designation of systems

ISO 4628-2, Paints and varnishes – Assessment of coating degradation – designation of number and size of defects, and intensity of uniform changes in appearance – Part 2: Assessment of degree of foaming

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 4618 apply.

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