PROCESS OF TIGHTNESS TEST OF ARTICLES AND GEAR FOR ITS IMPLEMENTATION Russian patent published in 2001 - IPC

FIELD: air testing equipment. SUBSTANCE: in correspondence with process space to collect leakage is formed around article or part of it, gas is injected into article, space is connected to detector of non-flow type and by signal from it degree of non-tightness of article is visualized. In this case simultaneously with connection to detector space to collect leakage communicates with atmosphere over conduit diminishing to total closure during time established within limits of time control proceeding from condition that maximum possible leak is recorded when conduit is completely open and minimum possible leak required to record leakage is recorded when conduit is totally closed during time left for control. EFFECT: increased sensitivity of test without fear of damage to sensitive element of detector in unlimited range of controlled leaks. 2 cl, 1 dwg