Sniffing test

Leakage test in which the object under test is pressurized with tracer gas and the escaping tracer gas through leaks is detected by a sampling (sniffer) probe
ISO 20484:2017(E)

Щупа способ (3.4.3)

ГОСТ Р «Контроль неразрушающий. Течеискание. Термины и определения»