Testing of surface active agents - Determination of the surface tension of liquids using the pendant drop test method (Drop Shape Analysis)

Standard [CURRENT]

DIN 53013:2026-03

Testing of surface active agents - Determination of the surface tension of liquids using the pendant drop test method (Drop Shape Analysis)

German title
Prüfung von Tensiden - Bestimmung der Oberflächenspannung von Flüssigkeiten mit dem Prüfverfahren des hängenden Tropfens (Tropfenkonturanalyse)
Publication date
2026-03
Accessibility
Original language
German
Pages
18

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Publication date
2026-03
Original language
German
Pages
18
DOI
https://dx.doi.org/10.31030/3662214
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Overview

This document describes an optical method for determining the surface tension of liquids using the pendant drop method. method can be used in particular to characterize aqueous solutions of low molecular weight or polymeric surfactants. It also draws attention to possible difficulties and shows possible solutions. This document has been prepared by NA 062-05-63 AA "Anwendungstechnische Prüfverfahren für Tenside" ("Application technology test methods for surfactants") at DIN Standards Committee Materials Testing (NMP) in accordance with DIN EN ISO 19403-3.

Content

ICS

71.100.40

DOI

https://dx.doi.org/10.31030/3662214

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