Comment by fnordfnordfnord
9 years ago
You don't need to stop anything to fill a sample bottle.
>Ventilation is a huge problem - H2S emits a very foul smell.
H2S also deadens the olfactory nerves, or something to that effect so that one does not notice if the concentration increases gradually.
>You don't need to stop anything to fill a sample bottle.
Gotcha. I had trouble reaching people who were willing to do sampling, which led me to that conclusion.
>H2S also deadens the olfactory nerves
Going back to check my ventilation right now, haha. From what I know, the scent disappears only above concentrations in air of ~150-200ppm.