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Old 05-08-2019, 02:42 PM   #16
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Re: No Smoking


I put out a fire once. Used 4) 10 lb fire extinguishers.

Garbage in the dock area of my bldg. caught on fire and flames were about to start climbing the side of the building.

I had taken training from our local fire dept on how to use a extinguisher ( good to know ) as they had a metal burn barrel chopped down to teach with.

So I runs to the ramp with 2 extinguishers and blasts away at the base of the flames. Got another person to bring more as it was really going. LOTS of white dust so seeing that video brings back memories. You don't want it everywhere as it is like flour.

I imagine that car was fun to clean out later.
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Old 05-08-2019, 03:47 PM   #17
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Re: No Smoking


Quote:
With natural gas it is 4-14% if I remember my trade school lessons. Meaning if you have 50% oxygen and 50% gas in a room it won't explode. Needs to be 4-14% gas and the rest oxygen.
I think you meant AIR, not oxygen.
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Old 05-08-2019, 05:09 PM   #18
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Re: No Smoking


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Originally Posted by Oso954 View Post
I think you meant AIR, not oxygen.
Yes...
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Old 05-08-2019, 05:28 PM   #19
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Re: No Smoking


We had a natural gas explosion in our neck of the woods three years ago. It leveled a few buildings, seriously damaged a bunch more, and blew out the store front glass for blocks. A few firefighters were hurt but luckily nobody died as they evacuated most people while looking for the source of the gas leak.
The problem with having an explosive range like that 4-14% that was mentioned is that eventually the gas will spread and dilute until it hits that right mix and you better hope you don't have an ignition source nearby.
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Old 05-08-2019, 05:45 PM   #20
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Re: No Smoking


Years ago I talked with a guy that worked in a control room where they store natural gas in a huge volume. He explained as if they had a major leak and lost all the gas it would drift east about 20 miles killing people cars even fires on it's way and when it got thin enough that 20 miles would be gone in seconds.
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Old 05-08-2019, 06:18 PM   #21
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Re: No Smoking


Propane is even worse as it is heavier than air and settles to the floor. Especially in RV's that is VERY dangerous as it literally builds UPWARD/vertically until it hits a ignition source.

Natural gas rises and if you are lucky it can go up a chimney w/o exploding or vent itself. Only until the magic ratio happens and a ignition source is available.

I went inside a HUGE natural gas pumping/booster station in Iles de Chenes in Manitoba. Part of the Trans Canada pipeline network.

If there ever is a leak they dump a huge load of aircraft fire fighting foam inside the building ( from pressurized storage tanks ) and it literally depletes all the oxygen so no ignition can occur.
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Old 05-08-2019, 09:33 PM   #22
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Re: No Smoking


The video that follows that link is also hilarious. Lots of clips of people pulling away while still 'plugged in', but some are quite entertaining, including using a lighter to check something while fueling.
I've used a fire extinguisher on vehicles a couple of times in my career but with newer vehicles having things like bumper shock absorbers it can get quite dangerous. I had a training session years ago on BLEVEs (Boiling Liquid Expanding Vapour Explosion) and they can be astonishingly dangerous.


https://www.ctif.org/news/gigantiv-b...and-60-injured
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Old 05-08-2019, 10:26 PM   #23
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Re: No Smoking


Yeah the fire dept has to be very concerned and well trained ( including smaller rural volunteer ones ) about air bags, struts, toxic chemicals etc in newer vehicles exploding or giving off noxious gases.

I had a LP/Propane converted Ford van in the mid 80's. That was the rage along with taxi's using it. Fizzled out due to the many idling problems/no interior heat/very poor power etc.

I got rear ended once and thought Holy Sheet, I am going to blow up.

I looked under the back of the van and the mounting for the tanks was super sturdy and had large angle brackets so it was safe. Probably had double wall tanks too. Flex hose from the tanks as well.

It does give you a scary feeling to drive around with a potential bomb under you though. We had to fill them ourselves from our own tank in the main yard and yeah you could not overfill them or it would be real dangerous if you went inside somewhere warm and it expanded and blew the tank or relief valve.
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Old 05-09-2019, 12:18 PM   #24
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Re: No Smoking


Smoking is a thing that had no place in the 21st century and especially in a gas station.

Propane mix is not easy to light, but still dangerous. (Think getting your grill to start sometimes, with repeated flicks of the sparker) But once it does light it does not have no way near the DT (detonation velocity) of other "explosives " such as on this list:

https://en.wikipedia.org/wiki/Table_...ion_velocities

I cant remember the velocity of propane. Quite low. DT is the indicator for how deadly an explosion is. It is expressed in m/s (meters per second).

Those explosions of cars on cheap Hollywood movies that attract mostly the 16-18 year old audience- it is quite difficult to get a car to explode. Still flammability is flammability.
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Old 05-10-2019, 02:31 AM   #25
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Re: No Smoking


Some of us aren't able to quit. It's not like you just up and decide not to be addicted to something. Kind of like you can't up and decide not to be phobic of something...

That said, up here they fine you if you smoke at a gas station. I'm actually surprised it's not a thing across the entire country...
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Old 05-10-2019, 03:23 AM   #26
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Re: No Smoking


Quote:
Originally Posted by yuri View Post
Yeah the fire dept has to be very concerned and well trained ( including smaller rural volunteer ones ) about air bags, struts, toxic chemicals etc in newer vehicles exploding or giving off noxious gases.

I had a LP/Propane converted Ford van in the mid 80's. That was the rage along with taxi's using it. Fizzled out due to the many idling problems/no interior heat/very poor power etc.

I got rear ended once and thought Holy Sheet, I am going to blow up.

I looked under the back of the van and the mounting for the tanks was super sturdy and had large angle brackets so it was safe. Probably had double wall tanks too. Flex hose from the tanks as well.

It does give you a scary feeling to drive around with a potential bomb under you though. We had to fill them ourselves from our own tank in the main yard and yeah you could not overfill them or it would be real dangerous if you went inside somewhere warm and it expanded and blew the tank or relief valve.
In the 80s they levelled a gas station in Edmonton with a truck with an over filled tank. When it warmed up the safety valve let go.
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Old 05-10-2019, 06:19 AM   #27
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Re: No Smoking


Quote:
Originally Posted by Mystriss View Post
Some of us aren't able to quit. It's not like you just up and decide not to be addicted to something. Kind of like you can't up and decide not to be phobic of something...

That said, up here they fine you if you smoke at a gas station. I'm actually surprised it's not a thing across the entire country...
There is the nicotine patch.

Mom quit cold turkey after smoking for 40 years. Doctor told her it was messing around with her blood pressure and other meds and not to come see him until she quit. Her Dad ( my Grand Pa ) quit cold turkey also. He hand rolled/smoked harsh heavy Black Cat tobacco and smoked unfiltered cigs. Also fought in WW1.

My co-worker quit. He was sucking on a placebo ( plastic tip of a cigarillo cigar ) for 6 months.

It is not impossible if you really want to.
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Old 05-10-2019, 06:23 AM   #28
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Re: No Smoking


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Originally Posted by Nealtw View Post
In the 80s they levelled a gas station in Edmonton with a truck with an over filled tank. When it warmed up the safety valve let go.
Yeah I did not filling the tank. Was a complicated 3 step process and the liquid Propane could freeze skin. Had some sort of 85% overflow tube in the tank/vent and when liquid came out you stopped pumping.

There were private filling stations but we had dozens of vehicles and a large yard and our own tanks and it was cheaper to do it ourselves.
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Old 05-10-2019, 09:09 AM   #29
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Re: No Smoking


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Originally Posted by Mystriss View Post
Some of us aren't able to quit. .
Right- actually most arent able to quit. Nicotine addiction is so intense. Vaps are better than a cig. Ive made some of them.......
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Old 05-10-2019, 10:02 AM   #30
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Re: No Smoking


Yuri's real life smoking story.:

Starts swiping a few cigs from Mom in 1973 ( 13 yrs old ) and going outside to the garage to try smoking. Pretty strong them smokes and I am not even sure I inhaled properly.

Started off with half a cig and then put it out and saved the other half in my parka for later. After a few weeks the loose tobacco that fell out starts accumulating in said parka pocket. No problema.

Fast forward a few weeks and Mom decides to have said parka dry cleaned. OK Mom. Wears different coat to school.

Comes home and Mom has mean stern detective look on her face. WHAT the heck?? I have done nothing wrong lately.

Mom hauls out exhibit "A". A Ziploc bag with suspicious green leafy material in it. What the heck?

Mom: Are you smoking DRUGS son?

What the heck?

No Mom. That is tobacco from your cigs as I am smoking now. Harummph, she does not believe me. Kid must be on drugs.

OK Mom if you don't trust me take it to the police dept and have it analyzed.

Harummph. Kid still must be on drugs and I don't believe him as I have evidence. Finally she gives up as she did not want to be made look foolish walking in with a bag of tobacco.

I thought she would be mad I was smoking ( people did not approve of that with young kids back then ) or that I was stealing her smokes but that was never mentioned.

Quit smoking in high school when I got new non smoking friends at the trade school I went to. Never really enjoyed it or even know what the nicotine did. Maybe I should try a patch to see.
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