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re: Don't smoke and drive, kids.
Posted on 4/17/26 at 2:03 pm to madmaxvol
Posted on 4/17/26 at 2:03 pm to madmaxvol
quote:
The odor threshold for Ethyl Mercaptan is around 0.00035 ppm. The LEL of propane is 21,000 to 22,000 ppm. When monitoring for it, you typically set your detection limits to 10% of the LEL (around 2,100 ppm). You should smell it long before you reach the LEL.
That's what I think too. But the details may be a bit trickier than that. What percent of what's in a regular "propane" tank is the mercaptan? IOW, what's the ratio of airborne mercaptan to airborne propane? Also, odor thresholds can vary widely among even 'normal' people. And then there's 'I smell something,' versus 'I smell mercaptan.'
This post was edited on 4/17/26 at 2:05 pm
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Posted on 4/17/26 at 2:12 pm to NOLATiger163
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