Related Terms. Common boundary where direct contact between two different cultures, devices, entities, environments, systems, etc., occurs, and where energy, information, and/or material is exchanged. An electrical outlet or a telephone jack a common example of device interface.
Definition. Gas that at ambient temperature and pressure forms a flammable mixture with air at a concentration of 12 percent (or less) by volume.efinition. Gas that at ambient temperature and pressure forms a flammable mixture with air at a concentration of 12 percent (or less) by volume.
This material is an EXTREMELY FLAMMABLE GAS. (It can also be a COMPRESSED GAS.) It is VERY TOXIC INHALATION HAZARD and an EYE IRRITANT. This material is also a significant confined space hazard (toxicity, flammability, explosion). Liquefied hydrogen sulfide escaping from a cylinder can cause frostbite.