ISO 1513-2010 Paints and varnishes – Testing and preparation of test samples

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ISO 1513 was prepared by Technical Committee ISO/TC 35, Paints and Varnishes, Subcommittee SC 9, Common Test Methods for Paints and varnishes.

The fourth edition cancelled and replaced the technically revised third edition (ISO 1513:1992). It also incorporates ISO 1513:1992 /Cor. 1:1994 Technical Corrigendum. The main technological changes are:

a) The title has been changed to “Examination and preparation of test samples”;

b) Normative references have been updated;

c) A definition clause containing the definitions of thixotropy and homogenization is added;

d) Procedures for the inspection and mixing of liquid and paste products have been consolidated into a single article (art. 5);

e) The type of sieve to be used for sample filtration is no longer specified.

ISO 1513-2010 Paints and varnishes – Testing and preparation of test samples

1 range
This standard sets out procedures for the initial examination of individual samples received and for the preparation of test samples by mixing and reducing a series of samples representing a batch or large quantity of paint, varnish or related products.

Note that the sample of the product under test is assumed to conform to ISO 15528.

2 Normative references
The following references are required for the use of this document. For dated references, citation-only versions apply. For undated references, the new version of the reference (including any revisions) applies.

ISO 4618, Paints and varnishes — Terms and definitions

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 and the following articles apply.

3.1 Thixotropy

The apparent viscosity of the liquid decreases under shear stress and then gradually recovers when the stress is removed

Note 1: The effect is time dependent.

3.2 Uniformity

The process of combining components, particles, or layers of an original sample (in the case of a composite sample) or a pretreated sample portion into a more uniform state to ensure an even distribution of substances and properties in the sample

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