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Bromotrifluoromethane, commonly referred to by the code numbers Halon 1301, R13B1, Halon 13B1 or BTM, is an organic halide with the chemical formula C Br F 3. It is used for gaseous fire suppression as a far less toxic alternative to bromochloromethane .
Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br.It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [1]
The Souders–Brown equation (named after Mott Souders and George Granger Brown [ 1][ 2]) has been a tool for obtaining the maximum allowable vapor velocity in vapor–liquid separation vessels (variously called flash drums, knockout drums, knockout pots, compressor suction drums and compressor inlet drums ). It has also been used for the same ...
Infobox references. Bromochlorofluoromethane or fluorochlorobromomethane, is a chemical compound and trihalomethane derivative with the chemical formula C H Br Cl F. As one of the simplest possible stable chiral compounds, it is useful for fundamental research into this area of chemistry. [1] However, its relative instability to hydrolysis, [2 ...
That’s the lowest level since May, and down from 231,000 the prior week. Meanwhile, unemployment rolls shrunk to levels last seen in early June. ... With the sector often seen as a gauge of the ...
Moisture vapor transmission rate (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. It is a measure of the permeability for vapor barriers. There are many industries where moisture control is critical. Moisture sensitive foods and pharmaceuticals are put in packaging with ...
A staff gauge or head gauge is calibrated scale which is used to provide a visual indication of liquid level. When installed perpendicular to an inclined or sloped surface, a staff gauge is usually calibrated so that the indicated level is the true vertical level . Staff gauges are commonly installed at stream gauging stations to indicate the ...
The Federal Reserve’s go-to inflation gauge held at 2.5% in July, Commerce Department data showed Friday. That’s better than anticipated and shows progress — but still underscores the bumpy ...
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