CPC Subgroup
G01M 3/20 using special tracer materials, e.g. dye, fluorescent material, radioactive material
Full Title
Investigating fluid-tightness of structures > by using fluid or vacuum > by detecting the presence of fluid at the leakage point > using special tracer materials, e.g. dye, fluorescent material, radioactive material
3 direct subcodes
Child Classifications
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- G01M 3/22 for pipes, cables or tubes; for pipe joints or seals; for valves;