FLUID-TIGHTNESS TESTING METHOD Russian patent published in 1994 - IPC

FIELD: testing articles under excessive pressure for fluid-tightness. SUBSTANCE: method involves the steps of: connecting an article and check vessel under test pressure to cavities of differential manometer, measuring pressure drops many times at time moments τ_i, measuring test error distribution low function and permissible probability of incorrect estimation on fluid-tightness of the article which is believed to be fluid-tight from the test results, (Paв

)_g; terminating tests at moment τ_н at which condition is not less than 1- (Paв)_g at equal or less than G, where G is a tolerable pressure drop rate in the article, is estimated averaged pressure drop rate in the article obtained from the results of multiple tests. EFFECT: enhanced reliability.