[TheForge] RE: Fact or urban myth?

[wmullett at bright.net]

Glad to hear you're still here.  You know, there are times when guns misfire too. You could give us a report on that.  

Kind of foolish to continue poor work habits because you haven't been hurt yet.  
----------------
From: "Lon Humphrey" <ironcrossforge at adelphia.net>
Date: Wed Aug 30, 10:40 AM
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Subject: Re: [TheForge] RE: Fact or urban myth?

it was widely recognized in the industry that acetylene
>equipment used to store and handle the bulk product

me thinks the key word there is BULK

i have been a welder for 19 years and have been smithing for 22 i see so 
many of these posts and wonder how many of the folks really have any real 
world experiance with this stuff
Just to clarify i learnded the old way.... gas welding first then stick then 
tig then mig
i cant see using hydrogen gas being any more dangerous than accetlane 
.....oh yea never ever use a accetlane bottel while its lying on its side 
....BULLSHIT do it all the time and i still got all my fingies and arms and 
leggs


----- Original Message ----- 
From: "Larry Brown" <lp.brown at verizon.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Wednesday, August 30, 2006 4:45 AM
Subject: Re: [TheForge] RE: Fact or urban myth?


> Thanks to Dave, as more and more people talk of hydrogen it is wise to 
> learn what you can do and shouldn't.
> Larry Brown
>
> At 09:33 PM 8/29/2006 -0500, you wrote:
>>Here is the answer from my friend who worked many years in the
>>compressed gas industry.
>>dave mudge
>>----------------------------------------------------------------------------------------------------------
>>I don't have the reference's any more because I left my library with the 
>>job
>>However, it was widely recognized in the industry that acetylene
>>equipment used to store and handle the bulk product should be burned
>>when decommissioned. One of the first cousins of Acetylene was
>>determined to be so dangerous that our corporation finally refused to
>>accept any orders for products containing it.  The hazard of metal
>>acetylides is real but may not be the culprit here.  Acetylene as
>>produced is actually a mixture of a number of compounds which in
>>combination make a kind of microscopic varnish film with the acetylene
>>on all surfaces of the equipment. Exposed do high pressure, not
>>necessarily hydrogen, or friction from high velocity gas movement, it
>>may decompose.  Hydrogen is a particularly good candidate to stimulate
>>decomposition because of its unique thermal properties as a compressed
>>gas.
>>For the view point of a former member of  a safety committee
>>responsible for specifying the equipment and safe handling procedures
>>for compressed gases I conclude with the following statement:
>>In the normal course of events  no equipment suitable for acetylene
>>service  is also suitable for hydrogen.  Both are chemically and
>>physically dangerous to handle.  The compressed gas industry has in
>>its over one hundred years of experience  developed, in conjunction
>>with federal regulators and  industrial manufactures, a set of rules
>>of thumb and equipment specification that allow most sensible people
>>to use materials that are wildly dangerous without injury.  Do not use
>>acetylene equipment for hydrogen service.  The specifications of the
>>equipment are incompatible
>>--------------------------------------------------------------------------------------------------------------------
>
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
> 

_______________________________________________
Manage membership or unsubscribe at:
http://mailman.qth.net/mailman/listinfo/theforge
theforge mail list group photo site is
http://www.photoaccess.com
Login:  blacksmithblacksmith at hotmail.com
password:  anvil
___________