The Helium Sniffing Leak Test Method is commonly used on products or systems that may be too large to place inside a test chamber, or when location and repair of a discovered leak is important. In production environments helium sniffing is typically used to test for leaks in the range of 10-6 atmcc/sec and larger. This method is used to measure out-leakage of a part or system filled with helium as a tracer gas. A sniffer probe attached to a helium leak detector, such as LACO's TITAN VERSA, is scanned over the test part by an operator or a robot to identify suspect leak locations.  

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