"Bruce L. Bergman" wrote:

"Pete C." wrote:
"Lloyd E. Sponenburgh" wrote:
"Pete C." wrote...
"Bruce L. Bergman" wrote:

The Lower Explosive Limit on acetylene is something like 4% in air,
meaning little leaks can have big consequences. The taillight circuit
is enough. If you think there my be a leak, get away from the car and
call in the Fire Dept. to check. Better safe then six feet under.

The MSDS indicates a lower flammable limit of 2.5% (upper 82%).

Pete, he said "explosive limit". There is a difference. Like acetone,
acetylene has an extremely wide range of flammability in air. Basically,
there is no safe amount. If you can smell it, fear it.

The MSDS didn't include a LEL, only LFL.

2.5%, 4%, explosive limit, flammable limit, Whatever - My original
point being (and it still remains) that it doesn't take much at all to
make really bad things happen.

A little leak, one little spark...

And in light of that, a little healthy paranoia goes a long way in
keeping you healthy. Treat it like it could go BOOM! precisely
because it *can* go BOOM! if you don't follow the rules.

-- Bruce --

Yep, I'm always paranoid, that's why I can spend a day working alone in
the woods with a chain saw and a backhoe and no cell coverage and live
to talk about it. My shop is also a separate building 80' from the
house.

Pete C.