How did it come from? Gas? Or something else?
In order to be able to detect the gas leak, people in the colorless and tasteless gas to add a small amount of sulfur ether, odd smell incomparable
(2) when toxic gas leaks into the air, it should be able to detect the harmful concentration permitted by the human body. For carbon monoxide as a toxic component of the gas, carbon monoxide content in the air to reach 0.02% (volume fraction), should be able to detect.
The town gas shall have a detectable odor, and the minimum amount of the odorant in the gas shall comply with the following requirements:(1) non toxic gas leakage into the air to reach the lower limit of the explosion should be aware of 20%;
Usually can smell the odor of gas is in the process of production in the gas safety gas leak prevention manufacturers based on a small amount of hydrogen sulfide gas has been intentionally added (a strong smell of rotten egg) or ammonia (a strong smell), as is when the gas leak can be found by people.
