Aviators oxygen vs welding or medical oxygen.

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series,
11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about
if I have to refill it which O2 should I use, what if I just can not get
aviators oxygen?
Actually I just don't know much about this.
Can someone help me?

What do you want to use it for?

I would consider aviator's oxygen and medical oxygen to be
identical -- similar control of impurities which would be dangerous to
breathe. (And I've breathed from chemical purity oxygen in an emergency
-- a bad asthma attack caused by rosin soldering flux smoke.

If you want to weld with it, it should work, but the pressure is
lower than most welding tanks, so you would not get much welding time
from it.

The tank is probably lighter than welding tanks, and if
aluminum, likely cannot be refilled as many times before flex failure.

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: <***@d-and-d.com> | (KV4PH) Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

Robert Nichols

2017-02-12 14:22:31 UTC

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?

Aviators oxygen is required to have very low moisture content. At high altitude, excess moisture could freeze and block O2 lines.

Here's an interesting quote I ran across at <http://www.c-f-c.com/supportdocs/abo1.htm>:
"Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing."

--
Bob Nichols AT comcast.net I am "RNichols42"

danny burstein

2017-02-12 14:51:11 UTC

Post by Robert Nichols
"Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing."

Well, sure. That's quoting from the welding oxygen sales reps..

Bet you'd get the exact same quote, just the other way, if
you spoke to medical oxygen sale reps...

--
_____________________________________________________
Knowledge may be power, but communications is the key
***@panix.com
[to foil spammers, my address has been double rot-13 encoded]

Jim Wilkins

2017-02-12 15:29:48 UTC

Post by Robert Nichols
Here's an interesting quote I ran across at
"Also of interest, we have been told by the suppliers of
welding oxygen, the purity level required for welding and cutting
purposes is more critical than for breathing."

Well, sure. That's quoting from the welding oxygen sales reps..
Bet you'd get the exact same quote, just the other way, if
you spoke to medical oxygen sale reps...

http://www.ozonesolutions.com/info/is-medical-oxygen-different

Larry Jaques

2017-02-13 03:15:45 UTC

On Sun, 12 Feb 2017 10:29:48 -0500, "Jim Wilkins"

Well, sure. That's quoting from the welding oxygen sales reps..
Bet you'd get the exact same quote, just the other way, if
you spoke to medical oxygen sale reps...

http://www.ozonesolutions.com/info/is-medical-oxygen-different

Very interesting, indeed.

--
Give me the luxuries of life.
I can live without the necessities.
--anon

Neon John

2017-02-12 19:45:42 UTC

On Sun, 12 Feb 2017 14:51:11 +0000 (UTC), danny burstein

Post by Robert Nichols
"Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing."

Well, sure. That's quoting from the welding oxygen sales reps..
Bet you'd get the exact same quote, just the other way, if
you spoke to medical oxygen sale reps...

I used to own a welding supply distributorship. We sold both medical
and industrial oxygen.

Medical and welding tanks connected to the exact same fill header. The
difference is that we had to test the welding oxygen for dewpoint (-50
deg F if I recall correctly) while it didn't matter for medical
oxygen.

For the medical oxygen, we had to have an FDA license and keep track
of lot numbers. Though not required, we recorded the oxygen purity
for each lot.

The other difference is that the green medical oxygen cylinders had to
be internally thoroughly cleaned before initial use to eliminate any
potential particulate sources.

Bottom line: welding oxygen is of higher quality than medical oxygen.

John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

Doug Miller

2017-02-14 13:30:29 UTC

Post by Robert Nichols
"Also of interest, we have been told by the suppliers of welding oxygen, the purity level

required for welding and cutting purposes is more critical than for breathing."

Post by danny burstein
Well, sure. That's quoting from the welding oxygen sales reps..
Bet you'd get the exact same quote, just the other way, if
you spoke to medical oxygen sale reps...

I have my doubts; after all, the oxygen you're breathing right now is about four parts impurities
to one part oxygen...

David Lesher

2017-03-31 18:21:07 UTC

Post by Robert Nichols

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?

Aviators oxygen is required to have very low moisture content. At high altitude, excess moisture could freeze and block O2 lines.
"Also of interest, we have been told by the suppliers of welding oxygen, the purity level required for welding and cutting purposes is more critical than for breathing."

I recall reading 20+ years ago who wanted to avoid aviation O2 prices, and used welding O2.
The fun part was he got the FAA to admit, in writing, that such was within the FAR's and
fully legal.

--
A host is a host from coast to ***@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Tim Wescott

2017-02-12 16:35:05 UTC

IIRC oxygen for human consumption has CO2 mixed in. The pathways that
regulate breathing sense blood CO2 concentration and make you breath
faster when it goes up -- and let you stop breathing when it goes down
close to zero.

Feel free to Google around and double check. I suspect that a welding
supply place wouldn't want to mess with refilling it, but you could check.

--
Tim Wescott
Control systems, embedded software and circuit design
I'm looking for work! See my website if you're interested
http://www.wescottdesign.com

Neon John

2017-02-12 20:00:12 UTC

Post by Tim Wescott
IIRC oxygen for human consumption has CO2 mixed in.

NO! At least for medical oxygen. No idea about aviation oxygen but
since the oxygen for commercial pilots comes from a LOX tank, I doubt
that aviation oxygen has anything added either.

Post by Tim Wescott
The pathways that
regulate breathing sense blood CO2 concentration and make you breath
faster when it goes up -- and let you stop breathing when it goes down
close to zero.

This is true to a point but most anyone on medical oxygen has a
respiratory or other problem that keeps their O2 sat low. A normal
person will have a sat level of from 98 to 100%. The standard of care
for starting long term oxygen therapy is 89%, a level that has the
patient gasping for breath.

I was on concentrator-produced oxygen for several years after a spinal
injury severed the nerves that drive my left diaphragm. I had a
surgical procedure done by robot called a hemidiaphragmatic plication
where the surgeon tied the two diaphragm muscles together. I regained
enough lung capacity to get off the oxygen.

My O2 sat while I was on the concentrators ran around 95%. Plenty of
CO2 in my system to keep me breathing just fine.

I have an oxygen concentration meter that I used to check used
concentrators before I bought them. A new machine will produce 99%
pure oxygen. A machine with a couple of years on it will drop to
97-98%. The sieve columns are replaced at 95%.
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

pyotr filipivich

2017-02-13 02:39:45 UTC

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?
Actually I just don't know much about this.
Can someone help me?

Oxygen is oxygen. And unless someone can explain why they are
adding an impurity to the tank, the rest is hand waving.

Adding "Aviation" or "Medical" (like "all natural" or "marine") to
the label merely means it is going to cost you more.

--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

Martin Eastburn

2017-02-13 03:20:21 UTC

The impurity is 'natural' from pumps and valves. In medical oxygen that
might feed through machines that are very expensive or feed a person
with 20% of their lung left, the air is FILTERED heavily.

At 10 or 20,000 feet with flights up to 80,000 one does not want
moisture in the air line. Simple as that.

Just like your plasma - water kills.

Think of a vacuum cleaner / shop vacuum - and then one with a Hepa
filter on it. What air do you breathe while you clean up with it ?

Martin

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?
Actually I just don't know much about this.
Can someone help me?

Oxygen is oxygen. And unless someone can explain why they are
adding an impurity to the tank, the rest is hand waving.
Adding "Aviation" or "Medical" (like "all natural" or "marine") to
the label merely means it is going to cost you more.
--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

pyotr filipivich

2017-02-13 17:14:25 UTC

Post by Martin Eastburn
The impurity is 'natural' from pumps and valves. In medical oxygen that
might feed through machines that are very expensive or feed a person
with 20% of their lung left, the air is FILTERED heavily.
At 10 or 20,000 feet with flights up to 80,000 one does not want
moisture in the air line. Simple as that.

I'm still confused.

What sort of 'impurities" can be in an oxygen environment? Okay,
water / humidity I can understand - it is "inert". But how did it get
in their in the first place? One would think that distilling Oxygen
out of the atmosphere would first remove the water.
Part of my confusion come from having dealt with the specs for
manufacturing medical equipment which would be part of the oxygen
system. "Not oil at all." Not before, not after, not during "Thou
shallt have no oil in the presence of the metal. Neither shall it be
on the tools thou useth. On the finished part is straight off."

Post by Martin Eastburn
Just like your plasma - water kills.
Think of a vacuum cleaner / shop vacuum - and then one with a Hepa
filter on it. What air do you breathe while you clean up with it ?
Martin

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?
Actually I just don't know much about this.
Can someone help me?

Oxygen is oxygen. And unless someone can explain why they are
adding an impurity to the tank, the rest is hand waving.
Adding "Aviation" or "Medical" (like "all natural" or "marine") to
the label merely means it is going to cost you more.

--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

rangerssuck

2017-02-13 18:11:39 UTC

I'm still confused.
What sort of 'impurities" can be in an oxygen environment? Okay,
water / humidity I can understand - it is "inert". But how did it get
in their in the first place? One would think that distilling Oxygen
out of the atmosphere would first remove the water.
Part of my confusion come from having dealt with the specs for
manufacturing medical equipment which would be part of the oxygen
system. "Not oil at all." Not before, not after, not during "Thou
shallt have no oil in the presence of the metal. Neither shall it be
on the tools thou useth. On the finished part is straight off."

For one thing, improperly cleaned and/or purged tanks / lines / valves / connectors could have all sorts of impurities. just opening the empty tanks valve to ambient air will introduce impurities (notably, in this case, water in the form of atmospheric humidity).

Larry Jaques

2017-02-13 23:55:01 UTC

On Mon, 13 Feb 2017 09:14:25 -0800, pyotr filipivich

Isn't that why they put the PSA in the bottom of the tank?

Post by pyotr filipivich
I'm still confused.
What sort of 'impurities" can be in an oxygen environment? Okay,
water / humidity I can understand - it is "inert". But how did it get
in their in the first place? One would think that distilling Oxygen
out of the atmosphere would first remove the water.
Part of my confusion come from having dealt with the specs for
manufacturing medical equipment which would be part of the oxygen
system. "Not oil at all." Not before, not after, not during "Thou
shallt have no oil in the presence of the metal. Neither shall it be
on the tools thou useth. On the finished part is straight off."

Especially in Antioch, unless thy passeth the holy hand grenade.

--
Give me the luxuries of life.
I can live without the necessities.
--anon

Martin Eastburn

2017-02-16 03:42:38 UTC

If you pump air into the medical OX with a cast iron pump with oil
in the rings - you send all sorts of crap from the pump. It also
picks up anything from the air it sucks in. Gas / Diesel / pollen .....
and pumps it into the tank. Lots of junk from the air. Guy painting
the building or out-gas paint...

When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into the tank.

It is like a scuba tank - can't just suck in the CO the pump puts out
into the tank.

When I get an OX tank from a company - it comes from a welding supply
in a welding tank.

When I get an OX tank from a company - and it is for life/death it is
from the medical OX supplier.

Water is sucked into the pump and into the tank / hose in real time.
It is kept out of OX for life.

OX is generated in chemical reactions in canisters for airplanes. Now
and then one catches fire and causes news on the TV.

N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2
not air. Plasma creates instant steam and it blasts the beam wide and
cools it as well giving a poor and sloppy cut edge.

Martin

I'm still confused.
What sort of 'impurities" can be in an oxygen environment? Okay,
water / humidity I can understand - it is "inert". But how did it get
in their in the first place? One would think that distilling Oxygen
out of the atmosphere would first remove the water.
Part of my confusion come from having dealt with the specs for
manufacturing medical equipment which would be part of the oxygen
system. "Not oil at all." Not before, not after, not during "Thou
shallt have no oil in the presence of the metal. Neither shall it be
on the tools thou useth. On the finished part is straight off."

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?
Actually I just don't know much about this.
Can someone help me?

Oxygen is oxygen. And unless someone can explain why they are
adding an impurity to the tank, the rest is hand waving.
Adding "Aviation" or "Medical" (like "all natural" or "marine") to
the label merely means it is going to cost you more.

--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

pyotr filipivich

2017-02-16 04:16:49 UTC

And what you have is not a tank of oxygen.

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into the tank.
It is like a scuba tank - can't just suck in the CO the pump puts out
into the tank.
When I get an OX tank from a company - it comes from a welding supply
in a welding tank.

And it has nitrogen, co2, h2o, pollen and dust in it?

Post by Martin Eastburn
When I get an OX tank from a company - and it is for life/death it is
from the medical OX supplier.
Water is sucked into the pump and into the tank / hose in real time.
It is kept out of OX for life.
OX is generated in chemical reactions in canisters for airplanes. Now
and then one catches fire and causes news on the TV.
N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2
not air. Plasma creates instant steam and it blasts the beam wide and
cools it as well giving a poor and sloppy cut edge.
Martin

I'm still confused.
What sort of 'impurities" can be in an oxygen environment? Okay,
water / humidity I can understand - it is "inert". But how did it get
in their in the first place? One would think that distilling Oxygen
out of the atmosphere would first remove the water.
Part of my confusion come from having dealt with the specs for
manufacturing medical equipment which would be part of the oxygen
system. "Not oil at all." Not before, not after, not during "Thou
shallt have no oil in the presence of the metal. Neither shall it be
on the tools thou useth. On the finished part is straight off."

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?
Actually I just don't know much about this.
Can someone help me?

Oxygen is oxygen. And unless someone can explain why they are
adding an impurity to the tank, the rest is hand waving.
Adding "Aviation" or "Medical" (like "all natural" or "marine") to
the label merely means it is going to cost you more.

--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

Martin Eastburn

2017-02-16 23:21:58 UTC

Oh sigh...

And what you have is not a tank of oxygen.

This is a 'green' tank marked Oxygen for welding. One uses filters if
it must be cleaner. In a torch - Oxygen/Hydro... it doesn't matter.
If it did you would put a particle filter on it. Don't breathe this as
medical ox.

And it has nitrogen, co2, h2o, pollen and dust in it?

Oxygen tanks are percentage of pure OX. It will have other stuff in it
if 98% Ox. One never gets pure Ox in an iron/steel tank. It would have
to be glass lined and purged/cleaned every time.
Air isn't pure Ox. It is mostly Nitrogen. It has He in it as well.
All sorts of non OX is in air.

Post by Martin Eastburn
When I get an OX tank from a company - and it is for life/death it is
from the medical OX supplier.

And why if it is always 100% pure OX is there Medical grade ? It isn't
just medical grade container.

Post by Martin Eastburn
Water is sucked into the pump and into the tank / hose in real time.
It is kept out of OX for life.
OX is generated in chemical reactions in canisters for airplanes. Now
and then one catches fire and causes news on the TV.
N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2
not air. Plasma creates instant steam and it blasts the beam wide and
cools it as well giving a poor and sloppy cut edge.
Martin

I'm still confused.
What sort of 'impurities" can be in an oxygen environment? Okay,
water / humidity I can understand - it is "inert". But how did it get
in their in the first place? One would think that distilling Oxygen
out of the atmosphere would first remove the water.
Part of my confusion come from having dealt with the specs for
manufacturing medical equipment which would be part of the oxygen
system. "Not oil at all." Not before, not after, not during "Thou
shallt have no oil in the presence of the metal. Neither shall it be
on the tools thou useth. On the finished part is straight off."

Post by c***@gmail.com
So I got a cylinder from a friend, that is a Avox System 9700 series, 11.0 CU FT 1800 PSI. Which I really really like, but I am confuse about if I have to refill it which O2 should I use, what if I just can not get aviators oxygen?
Actually I just don't know much about this.
Can someone help me?

Oxygen is oxygen. And unless someone can explain why they are
adding an impurity to the tank, the rest is hand waving.
Adding "Aviation" or "Medical" (like "all natural" or "marine") to
the label merely means it is going to cost you more.

--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

pyotr filipivich

2017-02-28 03:41:31 UTC

Post by Martin Eastburn
Oh sigh...

And what you have is not a tank of oxygen.

I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

And it has nitrogen, co2, h2o, pollen and dust in it?

Oxygen tanks are percentage of pure OX. It will have other stuff in it
if 98% Ox. One never gets pure Ox in an iron/steel tank.

I would expect that to be true. After all, iron oxidizes rather
well, and unfortunately, the oxides lack the structural integrity to
protect the un oxidized iron from exposure.

Post by Martin Eastburn
It would have
to be glass lined and purged/cleaned every time.
Air isn't pure Ox. It is mostly Nitrogen. It has He in it as well.
All sorts of non OX is in air.

There must be something to the magic of getting oxygen into tanks
which I'm missing.

Post by Martin Eastburn
When I get an OX tank from a company - and it is for life/death it is
from the medical OX supplier.

And why if it is always 100% pure OX is there Medical grade ? It isn't
just medical grade container.

--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

Steve W.

2017-02-28 16:36:40 UTC

Post by Martin Eastburn
Oh sigh...

And what you have is not a tank of oxygen.

I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

And it has nitrogen, co2, h2o, pollen and dust in it?

Oxygen tanks are percentage of pure OX. It will have other stuff in it
if 98% Ox. One never gets pure Ox in an iron/steel tank.

I would expect that to be true. After all, iron oxidizes rather
well, and unfortunately, the oxides lack the structural integrity to
protect the un oxidized iron from exposure.

Post by Martin Eastburn
It would have
to be glass lined and purged/cleaned every time.
Air isn't pure Ox. It is mostly Nitrogen. It has He in it as well.
All sorts of non OX is in air.

There must be something to the magic of getting oxygen into tanks
which I'm missing.

Post by Martin Eastburn
When I get an OX tank from a company - and it is for life/death it is
from the medical OX supplier.

And why if it is always 100% pure OX is there Medical grade ? It isn't
just medical grade container.

--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

As a medic who uses "medical" oxygen a lot. You basically have steel
tanks, aluminum tanks and some stainless steel.

Steel are usually higher pressure units, used as vehicle born or
stationary tanks feeding into a manifold. There are steel portable tanks
still out there but they are a dying item. As they fail hydro they are
replaced by aluminum.

Stainless are usually liquid oxygen for hospitals and bulk transport.

For most of the local ambulance and rescue units we just swap empty
tanks as needed.
Where do we swap out our "medical oxygen" tanks? The local welding
supply place, who fill medical O2 and welding O2 from the same tank....

--
Steve W.

David Lesher

2017-03-31 18:58:33 UTC

Post by Steve W.
As a medic who uses "medical" oxygen a lot. You basically have steel
tanks, aluminum tanks and some stainless steel.
Steel are usually higher pressure units, used as vehicle born or
stationary tanks feeding into a manifold. There are steel portable tanks
still out there but they are a dying item. As they fail hydro they are
replaced by aluminum.
Stainless are usually liquid oxygen for hospitals and bulk transport.

And guess which you use in the MRI suite...

BTW, there are also fiberglass O2 bottles. I knew a SF Ranger
who made HAHO insertations. The only metal he carried was
the barrel/receiver of his weapon & ammunition, and that in a
graphite bag to minimize the radar signature. (The boots had no
metal islets, etc.) He described the procedure as "....cold..."

Neon John

2017-02-28 17:35:06 UTC

On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply isn't that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air, separated by
a fractionation tower. Oxygen contains a little nitrogen and all the
compressed gases contain traces of helium.

Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and absorbers. That
gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon
for my sign making) and has little commercial use.

John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into the tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient to boil
the liquid.

Even when an oxygen compressor is used, it contains no nylon. The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a mica-graphite
compound for seals and piston rings.

John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

rangerssuck

2017-03-01 15:23:59 UTC

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply isn't that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air, separated by
a fractionation tower. Oxygen contains a little nitrogen and all the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and absorbers. That
gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into the tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient to boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon. The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid oxygen in a tank, seal it and let it boil off to a known pressure?

2) is there less expensive neon available? What would be the consequence (color difference, maybe?) of using it? Just wondering.

JPB

Jim Wilkins

2017-03-01 16:01:43 UTC

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply isn't that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air, separated by
a fractionation tower. Oxygen contains a little nitrogen and all the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and absorbers.
That
gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into the tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient to boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon. The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a
mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid
oxygen in a tank, seal it and let it boil off to a known pressure?
2) is there less expensive neon available? What would be the
consequence (color difference, maybe?) of using it? Just wondering.
JPB

https://en.wikipedia.org/wiki/Air_separation

rangerssuck

2017-03-02 14:55:18 UTC

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply isn't that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air, separated by
a fractionation tower. Oxygen contains a little nitrogen and all the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and absorbers.
That
gas is quite expensive (I pay $1/liter in 200 liter cylinders for neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into the tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient to boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon. The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a
mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid
oxygen in a tank, seal it and let it boil off to a known pressure?
2) is there less expensive neon available? What would be the
consequence (color difference, maybe?) of using it? Just wondering.
JPB

https://en.wikipedia.org/wiki/Air_separation

thanks. More information I will never use, but it does keep the brain lubricated.

Jim Wilkins

2017-03-02 16:51:55 UTC

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply isn't that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air,
separated
by
a fractionation tower. Oxygen contains a little nitrogen and
all
the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and absorbers.
That
gas is quite expensive (I pay $1/liter in 200 liter cylinders
for
neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into
the
tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient to boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon.
The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a
mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid
oxygen in a tank, seal it and let it boil off to a known
pressure?
2) is there less expensive neon available? What would be the
consequence (color difference, maybe?) of using it? Just
wondering.
JPB

https://en.wikipedia.org/wiki/Air_separation

thanks. More information I will never use, but it does keep the brain lubricated.

Good. Try your well-oiled brain on the Riddle of the Sphinx:

What walks on four legs in the morning, two legs at noon and three in
the afternoon?
-Sophocles

rangerssuck

2017-03-02 17:18:51 UTC

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply isn't that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air,
separated
by
a fractionation tower. Oxygen contains a little nitrogen and
all
the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and absorbers.
That
gas is quite expensive (I pay $1/liter in 200 liter cylinders
for
neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it
squeezes the
oxygen by squeezing a hose from a series of filters into
the
tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient to boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon.
The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a
mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid
oxygen in a tank, seal it and let it boil off to a known
pressure?
2) is there less expensive neon available? What would be the
consequence (color difference, maybe?) of using it? Just
wondering.
JPB

https://en.wikipedia.org/wiki/Air_separation

thanks. More information I will never use, but it does keep the brain lubricated.

What walks on four legs in the morning, two legs at noon and three in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number of things.

What has four wheels and flies?

Jim Wilkins

2017-03-02 17:56:25 UTC

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a
100%
or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply
isn't
that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air,
separated
by
a fractionation tower. Oxygen contains a little nitrogen and
all
the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and
absorbers.
That
gas is quite expensive (I pay $1/liter in 200 liter cylinders
for
neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it
squeezes the
oxygen by squeezing a hose from a series of filters into
the
tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient
to
boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon.
The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a
mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid
oxygen in a tank, seal it and let it boil off to a known
pressure?
2) is there less expensive neon available? What would be the
consequence (color difference, maybe?) of using it? Just
wondering.
JPB

https://en.wikipedia.org/wiki/Air_separation

thanks. More information I will never use, but it does keep the brain lubricated.

What walks on four legs in the morning, two legs at noon and three in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number of things.
What has four wheels and flies?

A garbage truck.

rangerssuck

2017-03-02 19:42:25 UTC

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a
100%
or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply
isn't
that
pure. In all but the smallest plants, oxygen, nitrogen and argon
tanks are filled by boiling that component of liquid air,
separated
by
a fractionation tower. Oxygen contains a little nitrogen and
all
the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and
absorbers.
That
gas is quite expensive (I pay $1/liter in 200 liter cylinders
for
neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump and it
squeezes the
oxygen by squeezing a hose from a series of filters into
the
tank.

Except for very small operations such as a hospital refilling their
own "E" tanks, oxygen is NOT compressed. Much more efficient
to
boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon.
The
nylon would diesel on the compression stroke. My experience with
breathing air and oxygen compressors is that they use a mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid
oxygen in a tank, seal it and let it boil off to a known pressure?
2) is there less expensive neon available? What would be the
consequence (color difference, maybe?) of using it? Just wondering.
JPB

https://en.wikipedia.org/wiki/Air_separation

thanks. More information I will never use, but it does keep the brain lubricated.

What walks on four legs in the morning, two legs at noon and three in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number of things.
What has four wheels and flies?

A garbage truck.

Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?"

pyotr filipivich

2017-03-02 22:37:12 UTC

Post by rangerssuck
thanks. More information I will never use, but it does keep the
brain lubricated.

What walks on four legs in the morning, two legs at noon and three in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number of things.
What has four wheels and flies?

A garbage truck.

Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?"

Frozen fish truck.

Why did the monkey fall out of the tree?
--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

Jim Wilkins

2017-03-02 23:11:50 UTC

11:42:25 -0800

Post by rangerssuck
thanks. More information I will never use, but it does keep the
brain lubricated.

What walks on four legs in the morning, two legs at noon and
three
in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number
of
things.
What has four wheels and flies?

A garbage truck.

Alrighty then... we both qualify for second grade. So, to kick it up
a notch: what starts with "F" and ends with "UCK?"

Frozen fish truck.
Why did the monkey fall out of the tree?
--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

Gravity

Michael A. Terrell

2017-03-03 06:59:14 UTC

Post by pyotr filipivich
Why did the monkey fall out of the tree?

It ate too many fermented bananas. :)

--
Never piss off an Engineer!

They don't get mad.

They don't get even.

They go for over unity! ;-)

b***@gmail.com

2017-03-03 14:12:14 UTC

"pyotr filipivich" <***@mindspring.com> wrote in message news:***@4ax.com...
- hide quoted text -

11:42:25 -0800

Post by rangerssuck
thanks. More information I will never use, but it does keep the
brain lubricated.

What walks on four legs in the morning, two legs at noon and
three
in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number
of
things.
What has four wheels and flies?

A garbage truck.

Alrighty then... we both qualify for second grade. So, to kick it up
a notch: what starts with "F" and ends with "UCK?"

Frozen fish truck.
Why did the monkey fall out of the tree?

I don't know, but have you seen the chimp running with the dog video?

rangerssuck

2017-03-05 14:06:52 UTC

Post by rangerssuck
thanks. More information I will never use, but it does keep the
brain lubricated.

What walks on four legs in the morning, two legs at noon and three in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number of things.
What has four wheels and flies?

A garbage truck.

Alrighty then... we both qualify for second grade. So, to kick it up a notch: what starts with "F" and ends with "UCK?"

Frozen fish truck.

Good one, but I was looking for fire truck.

Post by pyotr filipivich
Why did the monkey fall out of the tree?

Lack of support under his center of gravity.

Post by pyotr filipivich
--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."

Jim Wilkins

2017-03-02 23:10:12 UTC

On Tuesday, February 28, 2017 at 12:35:16 PM UTC-5, Neon
John

Post by Neon John
On Mon, 27 Feb 2017 19:41:31 -0800, pyotr filipivich

Post by pyotr filipivich
I'm still curious as to how one can have compounds in a
100%
or
even 99.9% Oxy environment.

Because commercially pure (medical or welding) gas simply
isn't
that
pure. In all but the smallest plants, oxygen, nitrogen
and
argon
tanks are filled by boiling that component of liquid air,
separated
by
a fractionation tower. Oxygen contains a little nitrogen and
all
the
compressed gases contain traces of helium.
Research grade (so called "5 9s") gas is made by refining the
commercial grade gas through filters, catalysts and
absorbers.
That
gas is quite expensive (I pay $1/liter in 200 liter
cylinders
for
neon
for my sign making) and has little commercial use.
John

Post by Martin Eastburn
When medical OX is made, the pump is in a nylon pump
and
it
squeezes the
oxygen by squeezing a hose from a series of filters into
the
tank.

Except for very small operations such as a hospital
refilling
their
own "E" tanks, oxygen is NOT compressed. Much more
efficient
to
boil
the liquid.
Even when an oxygen compressor is used, it contains no nylon.
The
nylon would diesel on the compression stroke. My
experience
with
breathing air and oxygen compressors is that they use a mica-graphite
compound for seals and piston rings.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

1) So are you saying that they put a measured quantity of liquid
oxygen in a tank, seal it and let it boil off to a known pressure?
2) is there less expensive neon available? What would be the
consequence (color difference, maybe?) of using it? Just wondering.
JPB

https://en.wikipedia.org/wiki/Air_separation

thanks. More information I will never use, but it does keep
the
brain lubricated.

What walks on four legs in the morning, two legs at noon and
three
in
the afternoon?
-Sophocles

me, though the three is not so often yet, depending on a number
of
things.
What has four wheels and flies?

A garbage truck.

Alrighty then... we both qualify for second grade. So, to kick it up
a notch: what starts with "F" and ends with "UCK?"

Firetruck

Jim Wilkins

2017-03-03 01:53:13 UTC

Post by rangerssuck
Alrighty then... we both qualify for second grade. So, to kick it
up a notch: what starts with "F" and ends with "UCK?"

Firetruck

Here's a real puzzle that remains to be solved.

The RMS Titanic broke in half at the surface and spilled some of its
coal and boilers, which fell in a small cluster that almost certainly
marks the breakup position. However the Captain's hasty initial
distress message placed the ship 20 miles further west, almost an
hour's steaming and much more than the uncertainty of clear weather
navigation back then. They had taken a star sight only 4 hours earlier
and were accurate within about a more typical mile in latitude.
Titanic subsequently radioed a corrected position that was still 14
miles too far westward, on the far side of the ice field.
https://www.encyclopedia-titanica.org/community/attachments/copy-of-expanded-area-chart-jpg.1388/

The rescue ships headed for the reported position instead of the
actual one and the survivors were fortunate that their lifeboats had
drifted toward the track of Carpathia, whose captain covered up the
error by claiming he rushed to the SOS position at a miraculously high
speed. No one knew better until Ballard found the wreck.

-jsw

Michael A. Terrell

2017-03-03 07:04:40 UTC

Post by rangerssuck
What has four wheels and flies?

A garbage truck.

All of the Garbage trucks that I've seen have dual rear wheels.

--
Never piss off an Engineer!

They don't get mad.

They don't get even.

They go for over unity! ;-)

Jim Wilkins

2017-03-03 11:32:01 UTC

Post by Michael A. Terrell

Post by rangerssuck
What has four wheels and flies?

A garbage truck.

All of the Garbage trucks that I've seen have dual rear wheels.

It was a manure wagon in the original Latin.

Larry Jaques

2017-03-03 15:37:05 UTC

On Fri, 3 Mar 2017 06:32:01 -0500, "Jim Wilkins"

Post by Michael A. Terrell

Post by rangerssuck
What has four wheels and flies?

A garbage truck.

All of the Garbage trucks that I've seen have dual rear wheels.

Ayup, still in 4th grade...

Post by Jim Wilkins
It was a manure wagon in the original Latin.

<g> That one _has_ been around for awhile, hasn't it? Prolly
wouldn't be PC in today's schools. <sigh> Well, that's about to
change, thank Crom.

--
Happiness is not a station you arrive at, but a manner of traveling.
-- Margaret Lee Runbeck

Michael A. Terrell

2017-03-03 06:55:39 UTC

Post by rangerssuck
What has four wheels and flies?

Ed Huntress, he has lots of flies!

--
Never piss off an Engineer!

They don't get mad.

They don't get even.

They go for over unity! ;-)

e***@gmail.com

2017-03-05 02:18:10 UTC

Post by Michael A. Terrell

Post by rangerssuck
What has four wheels and flies?

Ed Huntress, he has lots of flies!

I started tying them just last week. Lots of Light Cahills, a few Dark Hendricksons, sizes 12 through 16, and a few big March Browns and marabou streamers for early season, which is coming soon.

They're not like the ones your neighbors have -- the ones that ride in and out your acreen doors on the backs of the chickens...

--
Ed Huntress

Volker Borchert

2017-03-03 19:39:52 UTC

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.

--
"I'm a doctor, not a mechanic." Dr Leonard McCoy <***@ncc1701.starfleet.fed>
"I'm a mechanic, not a doctor." Volker Borchert <***@despammed.com>

Jim Wilkins

2017-03-03 22:09:04 UTC

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.
"I'm a doctor, not a mechanic." Dr Leonard McCoy
"I'm a mechanic, not a doctor." Volker Borchert

Lieutenant George: Oh, sir, if we should happen to tread on a mine,
what do we do?
Captain Blackadder: Well, normal procedure, Lieutenant, is to jump up
200 feet into the air and scatter yourself over a wide area.

Larry Jaques

2017-03-04 02:00:20 UTC

On Fri, 3 Mar 2017 17:09:04 -0500, "Jim Wilkins"

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.
"I'm a doctor, not a mechanic." Dr Leonard McCoy
"I'm a mechanic, not a doctor." Volker Borchert

LOL! I was going to modify it to "and flies into pieces", but I like
yours much better.

--
Happiness is not a station you arrive at, but a manner of traveling.
-- Margaret Lee Runbeck

Jim Wilkins

2017-03-04 03:31:55 UTC

Post by Larry Jaques
On Fri, 3 Mar 2017 17:09:04 -0500, "Jim Wilkins"

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.
"I'm a doctor, not a mechanic." Dr Leonard McCoy
"I'm a mechanic, not a doctor." Volker Borchert

LOL! I was going to modify it to "and flies into pieces", but I like
yours much better.

"Blackadder" was a BBC comedy shown on PBS.
Hugh Laurie played "Lieutenant George". He's better known as Dr.
House.
-jsw

Larry Jaques

2017-03-04 03:50:48 UTC

On Fri, 3 Mar 2017 22:31:55 -0500, "Jim Wilkins"

Post by Larry Jaques
On Fri, 3 Mar 2017 17:09:04 -0500, "Jim Wilkins"

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.
"I'm a doctor, not a mechanic." Dr Leonard McCoy
"I'm a mechanic, not a doctor." Volker Borchert

LOL! I was going to modify it to "and flies into pieces", but I like
yours much better.

"Blackadder" was a BBC comedy shown on PBS.
Hugh Laurie played "Lieutenant George". He's better known as Dr.
House.

I had already been weaned from TV for many years before House came on,
but my friend told me about it and said it was on Netflix. OMG, I
loved that show! What a hoot! RIP, House, MD.

Youtubing Blackadder now...Rowan Atkinson and a laugh track? Sorry,
no way. Monty Python they ain't.

--
Happiness is not a station you arrive at, but a manner of traveling.
-- Margaret Lee Runbeck

Jim Wilkins

2017-03-04 13:00:19 UTC

Post by Larry Jaques
On Fri, 3 Mar 2017 22:31:55 -0500, "Jim Wilkins"

Post by Larry Jaques
On Fri, 3 Mar 2017 17:09:04 -0500, "Jim Wilkins"

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.
"I'm a doctor, not a mechanic." Dr Leonard McCoy
"I'm a mechanic, not a doctor." Volker Borchert

LOL! I was going to modify it to "and flies into pieces", but I like
yours much better.

"Blackadder" was a BBC comedy shown on PBS.
Hugh Laurie played "Lieutenant George". He's better known as Dr.
House.

I had already been weaned from TV for many years before House came on,
but my friend told me about it and said it was on Netflix. OMG, I
loved that show! What a hoot! RIP, House, MD.
Youtubing Blackadder now...Rowan Atkinson and a laugh track? Sorry,
no way. Monty Python they ain't.

Atkinson didn't impress me as much as Baldrick and Miranda
Richardson's Queen Elizabeth. I couldn't stand Mr Bean.

e***@gmail.com

2017-03-05 02:21:11 UTC

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.

Do they still have those things in Europe? I have a not-so-fond memory of riding up a mountain in Switzerland in one, in reverse gear.

--
Ed Huntress

Volker Borchert

2017-03-05 07:41:59 UTC

Post by e***@gmail.com

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.

Do they still have those things in Europe?

Too few, but there are some.

--
"I'm a doctor, not a mechanic." Dr Leonard McCoy <***@ncc1701.starfleet.fed>
"I'm a mechanic, not a doctor." Volker Borchert <***@despammed.com>

Gunner Asch

2017-03-05 14:29:33 UTC

Post by e***@gmail.com

Post by rangerssuck
What has four wheels and flies?

A Citroen 2CV that tripped an anti-tank mine.

Do they still have those things in Europe?

Too few, but there are some.

Verdun and a host of other places have thousands of them.

Landmines...the gift that keeps on giving.

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

Volker Borchert

2017-03-02 20:35:26 UTC

Post by Jim Wilkins
What walks on four legs in the morning, two legs at noon and three in
the afternoon?

A person: crawls on all fours, walks upright, uses a stick.

--
"I'm a doctor, not a mechanic." Dr Leonard McCoy <***@ncc1701.starfleet.fed>
"I'm a mechanic, not a doctor." Volker Borchert <***@despammed.com>

Jim Wilkins

2017-02-28 18:46:47 UTC

Post by pyotr filipivich
.....
I'm still curious as to how one can have compounds in a 100% or
even 99.9% Oxy environment.

http://www.documentation.emersonprocess.com/groups/public/documents/bulletins/d100071x012.pdf
:
http://www.ozoneapplications.com/info/ozone_compatible_materials.htm
http://www.ozoneservices.com/articles/004.htm

Mixtures of active materials may not spontaneously react:
https://en.wikipedia.org/wiki/Activation_energy

That's why we can store and handle high explosives.
-jsw

Michael A. Terrell

2017-02-16 22:37:23 UTC

Post by Martin Eastburn
If you pump air into the medical OX with a cast iron pump with oil
in the rings - you send all sorts of crap from the pump. It also
picks up anything from the air it sucks in. Gas / Diesel / pollen .....
and pumps it into the tank. Lots of junk from the air. Guy painting
the building or out-gas paint...
When medical OX is made, the pump is in a nylon pump and it squeezes the
oxygen by squeezing a hose from a series of filters into the tank.
It is like a scuba tank - can't just suck in the CO the pump puts out
into the tank.
When I get an OX tank from a company - it comes from a welding supply
in a welding tank.
When I get an OX tank from a company - and it is for life/death it is
from the medical OX supplier.
Water is sucked into the pump and into the tank / hose in real time.
It is kept out of OX for life.
OX is generated in chemical reactions in canisters for airplanes. Now
and then one catches fire and causes news on the TV.
N2 tanks are 'dry' tanks also. No water. Many plasma machines use N2
not air. Plasma creates instant steam and it blasts the beam wide and
cools it as well giving a poor and sloppy cut edge.

This facility compresses air into a liquid, then it boils off each
gas to separate them. The majority of the oxygen is fed to the AK steel
mill a couple miles away, but they also supply hospitals with oxygen.

They also sell the rare gases that were mixed into the air, for
industrial use.

The reduction towers are huge, and the pumps are noisy. I used to
live near it, and I was involved in the upgrade when the sections of new
towers were transported from the Ohio river, through our cable TV
system. Each piece was moved on a 40 axle, 4,000HP crawler with a top
speed of five MPH. The assembly was done in England, since no place in
the US could transport that weight on existing roads and bridges. It
would have been in many smaller sections, and taken at least two more
years to add the needed Oxygen capacity.

<https://www.google.com/maps/place/Air+Products/@39.4883224,-84.3952661,881m/data=!3m1!1e3!4m5!3m4!1s0x0:0x106f597f0d4863a3!8m2!3d39.488846!4d-84.397463>

--
Never piss off an Engineer!

They don't get mad.

They don't get even.

They go for over unity! ;-)

David Lesher

2017-03-31 18:16:09 UTC

Post by Michael A. Terrell
The reduction towers are huge, and the pumps are noisy. I used to
live near it, and I was involved in the upgrade when the sections of new
towers were transported from the Ohio river, through our cable TV
system.

I never knew you could transport towers via CATV.
Does it require a newer than DOCSIS III modem?

Michael A. Terrell

2017-04-01 20:12:41 UTC