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(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.
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How much mercaptan is in natural gas?
1-3 ppm by volume
Is 30 percent of the air around as carbon dioxide?
No, the amount of carbon dioxide in the atmosphere is 0.04% or 400 ppm (parts per million). This has risen since the Industrial Revolution from 280 ppm, when we began burning fossil fuels (coal, oil and natural gas).
What is the least abundant natural greenhouse gas?
The three natural GHGs in the atmosphere are:Carbon dioxide concentrations were 280 ppm in the late 1700s rising to 401 ppm today. The 1700 value is probe;y close to natural/Methane in the atmosphere was about 900 ppm in preindustrial times and is now 1,800 ppbNitrous oxide in the atmosphere rarely exceeded 280 ppb since prehistoric times.It is now 328 ppbThese data indicate that nitrous oxides are the lowest naturally occurring GHG.
What is the difference between ppm and micron?
PPM stands for "Parts Per Million" and is a way to count the infusion of gas in a body of gas while a micron is a measurement of length. Physics and Engineering use both of those to measure length, but the PPM is how much the length changes relative to temperature.
Concentration of what in the atmosphere is about 380ppm?
Concentration of ozone is about 380 ppm. This is the natural range of ozone.
How much mercaptan is in natural gas?
1-3 ppm by volume
How to convert 10 ppm mole of H2O to ppm wt in natural gas?
10 ppm mole multiply by molecular weight of water then divided by sample density
How you convert ammonia liquid pounds to gas ppm?
You cant...Coz its not a ratio...You can find number of moles, weight, and etc but not ppm bcoz ppm is termed from composition
Is 30 percent of the air around as carbon dioxide?
No, the amount of carbon dioxide in the atmosphere is 0.04% or 400 ppm (parts per million). This has risen since the Industrial Revolution from 280 ppm, when we began burning fossil fuels (coal, oil and natural gas).
What is the least abundant natural greenhouse gas?
The three natural GHGs in the atmosphere are:Carbon dioxide concentrations were 280 ppm in the late 1700s rising to 401 ppm today. The 1700 value is probe;y close to natural/Methane in the atmosphere was about 900 ppm in preindustrial times and is now 1,800 ppbNitrous oxide in the atmosphere rarely exceeded 280 ppb since prehistoric times.It is now 328 ppbThese data indicate that nitrous oxides are the lowest naturally occurring GHG.
What is the full form of ppm in gas?
Parts per million.
What is the difference between ppm and micron?
PPM stands for "Parts Per Million" and is a way to count the infusion of gas in a body of gas while a micron is a measurement of length. Physics and Engineering use both of those to measure length, but the PPM is how much the length changes relative to temperature.
What are the recommended alarm levels for ammonia gas detection?
A warning alarm is usually set at 25 ppm. The main alarm is usually set at 50 ppm.
What is smoke density?
measures how many (usually) parts per million (ppm) of whatever smoke/gas/etc is being looked for. For instance a smoke detector looks for X ppm of smoke in air, or a CO2 sensor measures the ppm of CO2 in air - ppm is a measure of density.
Concentration of what in the atmosphere is about 380ppm?
Concentration of ozone is about 380 ppm. This is the natural range of ozone.
How much carbon dioxide is in the air in london?
The amount of carbon dioxide in the air in London is the same as all around the world, that is, 0.04%, or 400 ppm (parts per million) (in 2013). This has risen from 280 ppm in the past 200 years,since we started burning fossil fuels (coal, oil and natural gas).
What is smoke density analyser?
measures how many (usually) parts per million (ppm) of whatever smoke/gas/etc is being looked for. For instance a smoke detector looks for X ppm of smoke in air, or a CO2 sensor measures the ppm of CO2 in air - ppm is a measure of density.
