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2. Explosive gas leak detector - Wikipedia

   en.wikipedia.org/wiki/Explosive_gas_leak_detector

   A detector for propane is best placed down low near the floor, as propane is heavier than air. [3] A detector for natural gas (city gas) is best placed up high, near the ceiling. [3] Some detectors can detect both natural gas or propane, but this requires a compromise location. [4]

3. Gas detector - Wikipedia

   en.wikipedia.org/wiki/Gas_detector

   The ultrasonic gas leak detector then produces an alarm when there is an ultrasonic deviation from the normal condition of background noise. Ultrasonic gas leak detectors cannot measure gas concentration, but the device is able to determine the leak rate of an escaping gas because the ultrasonic sound level depends on the gas pressure and size ...

4. Tracer-gas leak testing - Wikipedia

   en.wikipedia.org/wiki/Tracer-gas_leak_testing

   A tracer-gas leak testing method is a nondestructive testing method that detects gas leaks.A variety of methods with different sensitivities exist. Tracer-gas leak testing is used in the petrochemical industry, the automotive industry, the construction industry [1] and in the manufacture of semiconductors, among other uses.

5. Leak detection - Wikipedia

   en.wikipedia.org/wiki/Leak_detection

   The primary purpose of leak detection systems (LDS) is to help pipeline controllers to detect and localize leaks. LDS provide alarms and display other related data to the pipeline controllers to assist decision-making. Pipeline leak detection systems can also enhance productivity and system reliability thanks to reduced downtime and inspection ...

6. Gas leak - Wikipedia

   en.wikipedia.org/wiki/Gas_leak

   Any leak that can be seen, heard, or felt, and which is in a location that may endanger the general public or property. A Grade 2 leak is a leak that is recognized as being non-hazardous at the time of detection, but justifies scheduled repair based on probable future hazard. Examples of a Grade 2 Leak are:

7. Tank leak detection - Wikipedia

   en.wikipedia.org/wiki/Tank_leak_detection

   European Committee for Standardization EN 13160 shows five different classes (technical methods) of leak detection systems to be used on tanks and pipes. [1] The number of the class indicates the effectiveness of the installed leak detection system. Class 1 being the highest and class 5 being the lowest level. [2] [3] [4]