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A recent article published in Health & Safety International reviews the most current gas-detection technologies and their best uses. Some topics covered:

+ In the toxic-gas detection arena, advances in sensor technology have enabled new NTMOS (nanotechnology metal oxide semiconductor) sensors to respond in as quickly as five seconds to deadly hydrogen sulphide gas leaks -– even in extreme temperature and humidity.

+ For combustible gases, the most common detection choices are catalytic and infrared. Catalytics offer lower start-up costs while detecting a wide range of gases and offering good repeatability and accuracy. Infrared detectors are immune to poisoning from contaminants, seldom need recalibrating, and are unaffected by prolonged exposure to high gas concentrations.

+ When implementing a Safety Instrumented System (SIS), project lead times can be cut significantly by choosing products that have undergone third-party SIL certification.

Read more in this article authored by Garth Watkins. If you have any questions or comments, please contact us at rss@det-tronics.com.

Flammable materials (aviation fuels, cleaning solvents, and paints) present in aircraft hangars can endanger life, safety, aircraft, and the hangar structure. To improve protection, many Authorities Having Jurisdiction (AHJ) either require or strongly recommend high-performance fire detection and suppression systems to cover both the aircraft and the building.

Here are a few considerations to remember in planning hazard protection:

+ In general, fuel leaks accumulate under the wing and aircraft fuselage, therefore it is recommended that flame detectors be mounted on hangar walls (rather than on the ceiling) to view the area under airplane wings.

+ Unless flame detectors are EMI/RFI hardened, some can be activated (go into alarm) by interference from plane radar, communications, and X-rays.

+ Place combustible gas detectors in storage areas where volatile gases or liquids are stored.

Learn more about aircraft/hangar protection by reading this application note: Aircraft Hangar Protection.

If you have any questions or comments, please contact us at rss@det-tronics.com.