Investigating fluid-tightness of structures

GPHYSICS G01Measuring instruments G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

G01M3/00Investigating fluid-tightness of structures

G01M3/002by using thermal means G01M3/005using pigs or moles G01M3/007Leak detector calibration, standard leaks G01M3/02by using fluid or vacuum G01M3/022Test plugs for closing off the end of a pipe G01M3/025Details with respect to the testing of engines or engine parts G01M3/027Details with respect to the testing of elastic elements G01M3/04by detecting the presence of fluid at the leakage point G01M3/042by using materials which expand, contract, disintegrate, or decompose in contact with a fluid G01M3/045with electrical detection means G01M3/047with photo-electrical detection means G01M3/06by observing bubbles in a liquid pool G01M3/08for pipes, cables or tubes for pipe joints or seals for valves; for welds G01M3/081for cables G01M3/083for tubes G01M3/085for pipe joints or seals G01M3/086for valves G01M3/088for welds G01M3/10for containers G01M3/103for flexible or elastic containers G01M3/106for radiators G01M3/12by observing elastic covers or coatings G01M3/14for pipes, cables or tubes for pipe joints or seals for valves; for welds; for containers G01M3/141for cables G01M3/142for tubes G01M3/143for pipe joints or seals G01M3/144for valves G01M3/145for welds G01M3/146for containers G01M3/147for flexible or elastic containers G01M3/148for radiators G01M3/16using electric detection means G01M3/165by means of cables or similar elongated devices G01M3/18for pipes, cables or tubes for pipe joints or seals for valves; for welds; for containers G01M3/181for cables G01M3/182for tubes G01M3/183for pipe joints or seals G01M3/184for valves G01M3/185for welds G01M3/186for containers G01M3/187for flexible or elastic containers G01M3/188for radiators G01M3/20using special tracer materials G01M3/202mass spectrometer detection systems G01M3/205accessories and associated equipment, pump constructions G01M3/207calibration arrangements G01M3/22for pipes, cables or tubes for pipe joints or seals for valves; for welds; for containers G01M3/221for cables G01M3/222for tubes G01M3/223for pipe joints or seals G01M3/224for valves G01M3/225for welds G01M3/226for containers G01M3/227for flexible or elastic containers G01M3/228for radiators G01M3/229removably mounted in a test cell G01M3/24using infrasonic, sonic, or ultrasonic vibrations G01M3/243for pipes G01M3/246using pigs or probes travelling in the pipe G01M3/26by measuring rate of loss or gain of fluid G01M3/28for pipes, cables or tubes for pipe joints or seals for valves for welds G01M3/2807for pipes G01M3/2815using pressure measurements G01M3/2823using pigs or moles traveling in the pipe G01M3/283for double-walled pipes G01M3/2838for cables G01M3/2846for tubes G01M3/2853for pipe joints or seals G01M3/2861for pipe sections by testing its exterior surface G01M3/2869for seals not incorporated in a pipe joint G01M3/2876for valves G01M3/2884for welds G01M3/2892for underground fuel dispensing systems G01M3/30using progressive displacement of one fluid by another G01M3/32for containers G01M3/3209Details G01M3/3218for flexible or elastic containers G01M3/3227for radiators G01M3/3236by monitoring the interior space of the containers G01M3/3245using a level monitoring device G01M3/3254using a flow detector G01M3/3263using a differential pressure detector G01M3/3272for verifying the internal pressure of closed containers G01M3/3281removably mounted in a test cell G01M3/329for verifying the internal pressure of closed containers G01M3/34by testing the possibility of maintaining the vacuum in containers G01M3/36by detecting change in dimensions of the structure being tested G01M3/363the structure being removably mounted in a test cell G01M3/366by isolating only a part of the structure being tested G01M3/38by using light G01M3/40by using electric means