gas-tight
21Gas meter prover — A Gas Meter Prover is a piece of equipment used to verify the accuracy of a gas meter. Presently, gas meter provers (or more simply “provers”) refer to manually or electronic and/or computer controlled equipment used to calculate accuracy of a… …
22gas mask — a masklike device containing or attached to a component that filters the air inhaled by the wearer through charcoal and chemicals, for protecting the face and lungs against noxious gases and fumes, as in warfare or in certain industrial processes …
23Gas-pak — This is a method used in production of an anaerobic environment. This method of anaerorbiosis as others is used to culture bacteria which die or fail to grow in presence of oxygen ( anaerobes ). It is a much simpler technique than the McIntosh… …
24gas·ket — /ˈgæskət/ noun, pl kets [count] : a piece of rubber or some other material that is used to make a tight seal between two parts that are joined together blow a gasket 1 of a car, engine, etc. : to develop a very bad leak in a gasket 2 informal, of …
25natural gas — a combustible mixture of gaseous hydrocarbons that accumulates in porous sedimentary rocks, esp. those yielding petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and,… …
26Natural gas — For other uses, see Natural gas (disambiguation). Natural gas extraction by countries in cubic meters per year. Natural gas is a naturally occurring gas mixture consisting primarily of methane, typically with 0–20% higher hydrocarbons[1] …
27Dissolved gas analysis — or DGA is the study of dissolved gases in insulating fluid. [1] Insulating materials within transformers and related equipment break down to liberate gases within the unit. The distribution of these gases can be related to the type of electrical… …
28air-tight — adjective 1. having no weak points an airtight defense an airtight argument • Syn: ↑airtight • Similar to: ↑invulnerable 2. not allowing air or gas to pass in or out • Syn: ↑ …
29Residual gas analyzer — A residual gas analyzer (RGA) is a small and usually rugged mass spectrometer, typically designed for process control and contamination monitoring in the semiconductor industry. Utilizing quadrupole technology, there exists two implementations,… …
30History of the petroleum industry in Canada (natural gas) — Natural gas has been used almost as long as crude oil in Canada, but its commercial development was not as rapid. This is because of special properties of this energy commodity: it is a gas, and it frequently contains impurities. The technical… …
