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G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
G01N13/02—Investigating surface tension of liquids
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Analytical Chemistry
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Length-Measuring Instruments Using Mechanical Means
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Verfahren zum selbsttaetigen Messen, Registrieren und Regeln der Viskositaetswerte durchsichtiger und undurchsichtiger Fluessig-keiten und Vorrichtung zur Ausuebung des Verfahrens
Elektrisches Messverfahren und Vorrichtung zum Bestimmen von Schlackenhoehe und Schlackenmenge bei Schlacke-Metall-Baedern in metallurgischen Gefaessen