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Eductor :
Tube A tube inside a cylinder which allows for liquid withdrawal from the bottom of the cylinder when the valve is opened.
 
Exposure Limits :
Concentration of substances under which it is believed that nearly all workers can be repeatedly exposed on a daily basis without adverse effects.
 
 
 
 
 
 
 
Fahrenheit :
A temperature scale that has been set up so that ice melts at 32°and water boils at 212°.
 
Filling Ratio :
The ratio of the weight of gas in a container to the weight of water that the container will hold at 15°C.
 
Flame Ionization Detector (FID) :
One of the most commonly used detectors for measuring organic compounds in a gas stream. Organic species are decomposed by a hydrogen flame and measured by electrodes near the flame.
 
Flammable Gas :
A Gas that either
 
   
at atmospheric temperature and pressure forms a flammable mixture with air when present at a concentration of 13 volume % or less or which forms a range of flammable mixtures with air wider than 12 % regardless of the loser limit, or
 
projects a flame more than 18 inches beyond the ignition source with valve fully opened, or the flame flashes back and burns at the valve with any degree of valve opening, when tested
 
Flammability Limits :
The extremes of the range at which a gas mixed with air can be ignited with a source of ignition. The lower number is referred to as the lower explosive limit (LEL), and the upper number is called the upper explosive limit (UEL).
 
Flash Point :
The lowest temperature at which a flammable liquid will give off enough fumes to form an ignitable mixture with air directly above the liquid surface.
 
 
 
 
 
 
 
Gas :
A state of matter in which the individual molecules are almost totally unrestricted by cohesive forces. An ideal gas is one which obeys the gas laws under standard conditions.
 
Goose Neck :
Type of dip tube to enable choice of gaseous or liquid withdrawal when the container is in the horizontal position.
 
Gross Weight :
The total weight of both the container and the contents therein.
 
 
 
 
 
 
 
Halocarbons :
A family of compounds made up of a hydrocarbon combined with one or more halogens from the group VIIA elements in the Periodic Table. This name is commonly attributed to those compounds in the family which are used for refrigeration systems.
 
Heat of Adsorption :
The total heat generated from the initial adsorption of a compound on an adsorbate to the point at which equilibrium conditions are met and no more adsorption can take place.
 
Heat of Fusion :
The heat energy required to convert one mole of substance from the solid phase to the liquid phase at one atmosphere of pressure.
 
Heat of Vaporization :
The heat energy needed to transform one mole of substance from the liquid phase to the gas phase at one atmosphere of pressure.
 
Hydrocarbon :
An organic compound which contains both carbon and hydrogen in its molecular structure.
 

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