by observing bodies wholly or partially immersed in fluid materials

Full Title

Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity > by observing bodies wholly or partially immersed in fluid materials

Child Classifications

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• G01N 9/12 by observing the depth of immersion of the bodies, e.g. hydrometers
• G01N 9/20 by balancing the weight of the bodies