0
60%
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is a hydrocarbon mitigation agent?
hydrocarbon mitigation agent encapsulates hydrocarbon molecules on contact, thus enabling responders to extinguish Class A and Class B (hydrocarbon) fires. As hydrocarbon molecules become encapsulated, the LEL (Lower Explosion Limit) will immediately decline and, with proper agitation, will register "0." Application of BioSolve also facilitates roadway cleanup, removing oil sheen that creates a driving hazard.
Why do gas companies mix a smelly gas with methane?
That's so you'll know you have a gas leak before the concentration of methane in the air reaches methane's lower explosive limit.
What temperature can gasoline still give off flammable vapor?
The FR (flammable range) of gasoline is 1.4% LEL (lower exposive limit) to 7.6 UEL (upper exposive limit). Below 1.4% the gasoline vapor is said to be too lean and above 7.6% and the vapor is too rich. In either case gasoline will not burn if it is not in the FR.
Is 228 ppm of natural gas unsafe?
(previous answer)"228 ppm of natural gas is not unsafe as long as there is no way for it to increase in concentration. 5000ppm in a confined space is considered explosive. Since 5000ppm is considered the lower explosive limit of natural gas, it is reasonable to assume that enough oxygen has been displaced to possibly cause asphyxiation."(improvement:)As a 33-year veteran HVAC contractor and Gas Fitter instructor, I believe that even 1 ppm of combustible gas is unsafe. The reason is that I have seen "safe" (low-level) gas leaks blossom to hazardous conditions within 1 hour. You cannot assume that 228 ppm of natural gas will remain at that level.Also, the lower explosive limit of natural gas is 4%, which converts to 40,000 ppm.
Why is there a lower limit to temperature but not an upper limit?
lower limit because the particles have zero energy. there is no upper limit because particles can move as fast as they like. There is an upper limit on temperature, called "Planck Temperature". It is approximately 1.42e32 Kelvin! This temperature is the maximum temperature something can attain, with the physics we understand.
What is lel?
lower explosive limit
In combustible monitors what does LEL stand for?
Lower Explosive Limit
What are the six physical properties associated with hazard recognition of hazardous materials and chemicals?
vapor pressure evaporation rate flashpoint upper explosive limit lower explosive limit
What are the six physical properties associated with hazard recognition of hazardous materials chemicals?
vapor pressure evaporation rate flashpoint upper explosive limit lower explosive limit
What is UEL?
All of natural gas has LEL which means lower explosive limit and UEL upper explosive limits mean if lower or upper value for any gas found you get explosion.
What is the upper limit and lower limit?
write a function which computes product of all the number in a given range(from lower limit to upper limit) and returns the answer
What is the difference between LEL and UEL?
LEL is the Lower Explosive Limit. The lowest ignitable concentration of a substance in air that will ignite. UEL is the Upper Explosive Limit. The highest percentage of a substance in air that will ignite.
What is lel uel?
All of natural gas has LEL which means lower explosive limit and UEL upper explosive limits mean if lower or upper value for any gas found you get explosion.
What is the Percentage range of lel and uel for natural gas?
The Lower Explosive Limit (LEL) of natural gas (which is primarily methane). is 5% by volume in air. The Upper Explosive Limit (UEL) is 15% by volume in air
What has to happen for a gas or vapor to be flammable or an explosion hazard?
For a gas or vapor to be flammable or an explosion hazard it must have a concentration in air between the Lower Explosive Limit (LEL) and the Upper Explosive Limit (UEL) for that particular gas or vapor.
What is a hydrocarbon mitigation agent?
hydrocarbon mitigation agent encapsulates hydrocarbon molecules on contact, thus enabling responders to extinguish Class A and Class B (hydrocarbon) fires. As hydrocarbon molecules become encapsulated, the LEL (Lower Explosion Limit) will immediately decline and, with proper agitation, will register "0." Application of BioSolve also facilitates roadway cleanup, removing oil sheen that creates a driving hazard.
What is the differrence between lel and uel?
LEL (Lower Explosive Limit) is the minimum concentration of a gas or vapor in air below which it will not ignite, while UEL (Upper Explosive Limit) is the maximum concentration above which it will not ignite. These limits are important for assessing the fire and explosion risks of gases and vapors in various settings.
