by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

Full Title

Investigating fluid-tightness of structures > by using fluid or vacuum > by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

Child Classifications

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• G01M 3/28 for pipes, cables or tubes; for pipe joints or seals; for valves
• G01M 3/32 for containers, e.g. radiators