ISO/TR 19997:2018
(Main)Guidelines for good practices in zeta-potential measurement
Guidelines for good practices in zeta-potential measurement
This document addresses the zeta-potential measurement operation for applications such as new product design, optimization of existing products, quality control during processing and/or during usage of the product. It does not provide a complete procedure for zeta-potential measurements. The instructions and key points addressed in this document are considered useful for performing zeta-potential measurements as specified in ISO 13099-1 and ISO 13099-2.
Lignes directrices relatives aux bonnes pratiques pour la mesure du potentiel zéta
General Information
Standards Content (Sample)
TECHNICAL ISO/TR
REPORT 19997
First edition
2018-09
Guidelines for good practices in zeta-
potential measurement
Lignes directrices relatives aux bonnes pratiques pour la mesure du
potentiel zéta
Reference number
ISO/TR 19997:2018(E)
©
ISO 2018
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ISO/TR 19997:2018(E)
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© ISO 2018
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ii © ISO 2018 – All rights reserved
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ISO/TR 19997:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Principle . 1
6 Sample preparation . 2
6.1 General . 2
6.2 Sampling and sample inspection . 2
6.3 Sample dilution procedures. 3
6.4 Sample stability test . 3
7 Measurement uncertainty and sources of error . 4
7.1 General . 4
7.2 Carryover contamination from previous samples . 4
7.3 Inappropriate sample preparation procedures . 4
7.4 Inappropriate samples for electrophoretic light scattering measurement . 5
7.5 Inappropriate liquid medium . 5
7.6 Incorrect entries of parameters by the operator . 5
7.7 Air bubbles .
...
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