Re: HALON et al
But he never had a dinner. snip We never had Red Buttons to push to unlock any doors where I worked. We tried, but he was always too busy making movies. [GROAN] /snip -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
Patrick O'Keefe wrote: On Wed, 22 Jun 2005 13:55:23 -0500, Ned Hedrick [EMAIL PROTECTED] wrote: There is also a product called Inergen -- a mixture of 52% nitrogen, 40% argon and 8% carbon dioxide -- that claims to be safe to the environment and people. ... FSVO safe. Sounds good for the environment and equipment. People do better with a little oxygen. In theory, HALON is safer for humans that don't happen to be burning at high temperature. In practice, I'd try to get out of the area fast, regardless of the fire estinguishing techniques. 1. HALON is now forbidden because of ozone hole. 2. There are modern mixtures in place of HALON. Manufacturers took into consideration two factors: - effectivnesss of fire extinguish - human health. 3. Even way of distribution this gas is modernized. It must be evenly and quickly distributed to be effective. Often nitrogen is used as transport gas to speed up the process. The pipes are very fat for that reason also. 4. neutral gas (usually Nitrogen + Argon) is just cheaper and less effective alternative. 5. Anyway I would leave the computer room as fast as possible vbg BTW: I know about institution, where staff is instructed not to leave, during gas dump. They're assured they will be able to breathe, however for every seat there is oxygen mask in the drawer under the desk. This is flight control centre. -- Radoslaw Skorupka Lodz, Poland -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
Yea, they had this happen at a petroleum company in Dallas. Construction workers were in and out all day using a door that saw you coming and opened automatically. One of them went out of the room though the back door. On his way out, he pushed the door and it failed to open. Instead of hitting the crash bar on the door, he reached over and hit the little red button. There was a plastic cover over that one the next day, also. Gates, Guy wrote: At a previous employer, We had just completed building a new Computer Center. This building was in the same area as others that this company owned, So they were going to use the same cleaning company that the other buildings used. Our building had sensors that unlocked the door as you approached, but the older buildings had Red Buttons to push to unlock the door to get out. You probably guessed by now, When the Cleaning Crew came over and cleaned the Operations Console Room, They thought they had to push a button to get out of the room. The Console Room design had the Red 'Emergency Power Off' Button only 4 foot from the exit. He pushed the button to get out and all power went off. Talk about people scrambling 3:00 in the afternoon is not a good time to test this button. Needless to say, There was a plastic box covering that Red Button the next day. :-) Thanks...Guy M. Gates Jr. TTI Z/OS Systems Programmer Phone: (817) 740-9000 x-4627 Email: [EMAIL PROTECTED] -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
In a message dated 6/24/2005 3:01:27 P.M. Central Daylight Time, [EMAIL PROTECTED] writes: ... the older buildings had Red Buttons to push to unlock the door to get out. We never had Red Buttons to push to unlock any doors where I worked. We tried, but he was always too busy making movies. [GROAN] Bill Fairchild -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
Not a big red button, but close. IBM CE's just finished replacing an HDA in IBM 3380 cabinet. They were picking up the crashed HDA sitting on the floor at the head of the string when one of the CE's loses his balance. Hand swings over his head and hits the disable switches on about 12 of the 16 disks in the string. Within a week all switches in entire room have Plexiglas over them. -Original Message- From: Duffy, Peter [mailto:[EMAIL PROTECTED] Sent: Friday, June 24, 2005 2:44 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: HALON et al The one dump I was in was after a water alarm went off due to an A/C unit drain clogging and a puddle finally triggering the alarm. Operator ran to the panel, did not know what to do so they decided to do SOMETHING, they pulled the manual release. I was the second one out after I got hit with liquid HALON. Thick hair saved me from frostbite. One nozzle broke off from the ceiling, dented a floor tile pretty well. I was the second one out as I had an operator impaled on my right arm as I pushed through the doors. We had training the next week on override procedures. Press and hold, call security, wait for instructions. So I asked, where's the phone? Manager looked at me like I was stupid and pointed to one wall. So, I asked, where's the override? and he angrily pointed at the button in front of him. On another wall, 20 feet away from the phone. It dawned on him as people started to laugh. I never saw the telephone people install a new phone so fast. 3rd shift was a one person show and the usual operator thanked me as she laughed. Next dump was on a Saturday at another site, I got paged, a water alarm, manual release, yada yada yada. Walked them through the power up over the phone as I gasped between laughs as I drove over. Any good Big Red Button stories? Hehehehe Seen my share of those. Had a customer VP say, That button? It's not hooked up to anything. He pushed it and 30 spacecraft engineers on high end UNIX boxes started screaming as the room plunged into darkness. All I had said was, can we get facilities to remove it when we have a scheduled building power outage? He said yes. /ptd -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Leonard Woren Sent: Thursday, June 23, 2005 12:04 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: HALON et al On Wed, Jun 22, 2005 at 01:55:23PM -0500, Ned Hedrick ([EMAIL PROTECTED]) wrote: There is also a product called Inergen -- a mixture of 52% nitrogen, 40% argon and 8% carbon dioxide -- that claims to be safe to the environment and people. Except for those who need to breathe. The bottom line is that regardless of the chemical makeup, any gas used for computer room fire suppression is going to displace the oxygen that people need to breathe. What I was told by the experts way back when is that if the Halon dumps, hold your breath and leave the room immediately. That's why the Halon alarm is loud enough to wake the dead in the next county. I heard it once and I was across the hall in my office. Fortunately that was only from a careless workman who had accidentally tripped the fire alarm and an alert operator ran over and held the override button to prevent the Halon from dumping. Saved us $30,000 in 1981. /Leonard -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html E-MAIL CONFIDENTIALITY USE NOTICE: The contents of this e-mail message and any attachments are intended solely for the addressee(s) and may contain confidential and/or legally privileged information. If you are not the intended recipient of this message or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message and any attachments. In addition, you are strictly prohibited from using, disseminating, distributing, copying, or storing this message and any attachments. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
Xerox engineer came by to work on Xerox printer. On the way out, instead of pressing the double door breaker bar on the first set of doors he presses the RED power-off button. Down 8 hours. Plastic covers on them the next week. Engineer is still at Xerox, office job. Further down the road, a RED button was installed on the second set of double doors that actually exit out the building. Delivery person knows to press the RED button to open the EXIT doors. Once inside the computer room though there are the other set of double doors, they also have a RED button. Delivery person knows that RED button equals open. Presses it and down we go. 4 hours to recover. Now actual exit button is BLACK and RED button plastic covers are now locked with YELLOW caution tape over them. -Original Message- From: Pommier, Rex R. [mailto:[EMAIL PROTECTED] Sent: Friday, June 24, 2005 3:33 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: HALON et al Not a big red button, but close. IBM CE's just finished replacing an HDA in IBM 3380 cabinet. They were picking up the crashed HDA sitting on the floor at the head of the string when one of the CE's loses his balance. Hand swings over his head and hits the disable switches on about 12 of the 16 disks in the string. Within a week all switches in entire room have Plexiglas over them. -Original Message- From: Duffy, Peter [mailto:[EMAIL PROTECTED] Sent: Friday, June 24, 2005 2:44 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: HALON et al The one dump I was in was after a water alarm went off due to an A/C unit drain clogging and a puddle finally triggering the alarm. Operator ran to the panel, did not know what to do so they decided to do SOMETHING, they pulled the manual release. I was the second one out after I got hit with liquid HALON. Thick hair saved me from frostbite. One nozzle broke off from the ceiling, dented a floor tile pretty well. I was the second one out as I had an operator impaled on my right arm as I pushed through the doors. We had training the next week on override procedures. Press and hold, call security, wait for instructions. So I asked, where's the phone? Manager looked at me like I was stupid and pointed to one wall. So, I asked, where's the override? and he angrily pointed at the button in front of him. On another wall, 20 feet away from the phone. It dawned on him as people started to laugh. I never saw the telephone people install a new phone so fast. 3rd shift was a one person show and the usual operator thanked me as she laughed. Next dump was on a Saturday at another site, I got paged, a water alarm, manual release, yada yada yada. Walked them through the power up over the phone as I gasped between laughs as I drove over. Any good Big Red Button stories? Hehehehe Seen my share of those. Had a customer VP say, That button? It's not hooked up to anything. He pushed it and 30 spacecraft engineers on high end UNIX boxes started screaming as the room plunged into darkness. All I had said was, can we get facilities to remove it when we have a scheduled building power outage? He said yes. /ptd -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Leonard Woren Sent: Thursday, June 23, 2005 12:04 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: HALON et al On Wed, Jun 22, 2005 at 01:55:23PM -0500, Ned Hedrick ([EMAIL PROTECTED]) wrote: There is also a product called Inergen -- a mixture of 52% nitrogen, 40% argon and 8% carbon dioxide -- that claims to be safe to the environment and people. Except for those who need to breathe. The bottom line is that regardless of the chemical makeup, any gas used for computer room fire suppression is going to displace the oxygen that people need to breathe. What I was told by the experts way back when is that if the Halon dumps, hold your breath and leave the room immediately. That's why the Halon alarm is loud enough to wake the dead in the next county. I heard it once and I was across the hall in my office. Fortunately that was only from a careless workman who had accidentally tripped the fire alarm and an alert operator ran over and held the override button to prevent the Halon from dumping. Saved us $30,000 in 1981. /Leonard -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html E-MAIL CONFIDENTIALITY USE NOTICE: The contents of this e-mail message and any attachments are intended solely for the addressee(s) and may contain confidential and/or legally privileged information. If you are not the intended recipient of this message or if this message has been addressed to you in error, please immediately alert
Re: HALON et al
The cleaning crew was in. They decided to dust the disk drives. Remember the write disable switch on 3350s. Took 2 hours to realize what happened. At another site we had double doors. The handle was on the left door and the buttons were past the right. Had to grab the handle, reach across the other door, and press the bottom button to get out. The large red button on top was EPO and dump, the medium black button in the center was dump, and the small white one on bottom was unlock. Plastic covers came within the first week. Dennis Roach United Space Alliance 600 Gemini Avenue Mail Code USH-4A3L Houston, Texas 77058 Voice: (281) 282-2975 Page:(713) 736-8275 Fax: (281) 282-3583 E-Mail: [EMAIL PROTECTED] All opinions expressed by me are mine and may not agree with my employer or any person, company, or thing, living or dead, on or near this or any other planet, moon, asteroid, or other spatial object, natural or manufactured, since the beginning of time. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
... The cleaning crew was in. They decided to dust the disk drives. Remember the write disable switch on 3350s. Took 2 hours to realize what happened. ... One day, a cleaner saw the CE access plug on a 3350 C/U, while the CE was using it. She told everybody about it. One night crew member thought it would be easier to plug the vacuum into that, rather the wall 20 feet away. No head crashes. But, no data either. Same shop, a few months later. We were getting thermal checks on a V7C. Couldn't figure it out. It always happened in mid-night shift. The CE decided to watch the environment. It turns out one of the rookie tape-hangers had noticed the heat coming out of the top of the (air-cooled) 470. He started using it to keep the large pizza, the shift ordered every night, warm. Amdahl processors didn't like the topside vents blocke in 1981. -teD (The secret to success is sincerity. If you can fake that, you've got it made!) -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
In [EMAIL PROTECTED], on 06/24/2005 at 12:00 AM, Ted MacNEIL [EMAIL PROTECTED] said: It turns out one of the rookie tape-hangers had noticed the heat coming out of the top of the (air-cooled) 470. He started using it to keep the large pizza, the shift ordered every night, warm. Sounds like their A/C equipment was on the fritz; if the incoming air is at the right temperature, then the air coming out the top is way too cool for pizza, at least from a 470V/6. -- Shmuel (Seymour J.) Metz, SysProg and JOAT ISO position; see http://patriot.net/~shmuel/resume/brief.html We don't care. We don't have to care, we're Congress. (S877: The Shut up and Eat Your spam act of 2003) -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
From: R.S. It's less effective than mentioned HFC-227ea, FM-200, FE-227 products. Inergen only adds to the air causing the total percentage of oxygen to get low, to low to sustain the fire. The mentioned gases are active that means the react with oxygen at high temperatures (in the flame neighborhood) so locally oxygen percentage gets extremely low, while average depends only on amount of gas added. That would explain why Halon was considered bad for the kit as well as the people. I was told we had to be *very* careful cleaning the gizzards of the machinery after a drop. Oxidizing residue on electronics as they heated up wouldn't be a good thing I guess. Shane ... -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
On Wed, Jun 22, 2005 at 01:55:23PM -0500, Ned Hedrick ([EMAIL PROTECTED]) wrote: There is also a product called Inergen -- a mixture of 52% nitrogen, 40% argon and 8% carbon dioxide -- that claims to be safe to the environment and people. Except for those who need to breathe. The bottom line is that regardless of the chemical makeup, any gas used for computer room fire suppression is going to displace the oxygen that people need to breathe. What I was told by the experts way back when is that if the Halon dumps, hold your breath and leave the room immediately. That's why the Halon alarm is loud enough to wake the dead in the next county. I heard it once and I was across the hall in my office. Fortunately that was only from a careless workman who had accidentally tripped the fire alarm and an alert operator ran over and held the override button to prevent the Halon from dumping. Saved us $30,000 in 1981. /Leonard -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
On Wed, 22 Jun 2005 13:55:23 -0500, Ned Hedrick [EMAIL PROTECTED] wrote: There is also a product called Inergen -- a mixture of 52% nitrogen, 40% argon and 8% carbon dioxide -- that claims to be safe to the environment and people. ... FSVO safe. Sounds good for the environment and equipment. People do better with a little oxygen. In theory, HALON is safer for humans that don't happen to be burning at high temperature. In practice, I'd try to get out of the area fast, regardless of the fire estinguishing techniques. Pat O'Keefe -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
In [EMAIL PROTECTED], on 06/22/2005 at 11:41 AM, Shane Ginnane [EMAIL PROTECTED] said: I can only own up to being in 2. In neither case was I affected by the gas - I was out the door as soon as I heard it drop. *VERY* good incentive to get moving. Shane IBM Mainframe Discussion List IBM-MAIN@BAMA.UA.EDU wrote on 22/06/2005 11:23:25 AM: Not true, I've been in 3 HALON dumps back in the days it was THE method for computer room FS. One must exit quickly as it will make you short of breath at high enough concentrations since it displaces oxygen. Don't assume that it's safe just because the two of you lucked out. An EDS employee had to get medical care after going back[1] into the machine room to turn off the equipment. [1] At his own initiative; I doubt that he would have been allowed to had he announced his intentions up front. -- Shmuel (Seymour J.) Metz, SysProg and JOAT ISO position; see http://patriot.net/~shmuel/resume/brief.html We don't care. We don't have to care, we're Congress. (S877: The Shut up and Eat Your spam act of 2003) -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
In a message dated 6/22/2005 7:24:23 A.M. Central Daylight Time, [EMAIL PROTECTED] writes: Not true, I've been in 3 HALON dumps back in the days it was THE method for computer room FS. One must exit quickly as it will make you short of breath at high enough concentrations since it displaces oxygen. I was in a controlled carbon dioxide dump in a computer room once. You have 10 to 15 seconds to exit the room before you can no longer see, as the CO2 darkens and you could no longer find your way to the door. Also, the CO2 will suffocate you in a few minutes if you don't get out. It was an interesting and tense few seconds. Bill Fairchild -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
Both Halon (which was bad for the Ozone layer) and a more environmentally friendly replacement 1,1,1,2,3,3,3-heptafluoro-propane (manufactured under names such as HFC-227ea, FM-200, FE-227) have a minimum concentration at which they will suppress fires, and a higher concentration at which they become toxic. If I remember correctly, the size of the effective, nontoxic range is not that large, and smaller for Halon than HFC-227ea. IF the fire suppression system is properly designed and sized for the area covered, concentrations would not be toxic; but, I have also read such things as possible effects of long-term exposure to lower level concentrations of HFC-227 are not well understood, so erring on the side of caution where possible sounds advisable. More importantly, if these chemicals are discharged because a fire is in progress, chemical byproducts of the combustion itself and the byproducts of the reaction of the fire suppressant with the fire ARE most likely toxic and exposure should be avoided. I don't remember how Halon functions, but my understanding of HFC-227ea is that in contact with fire it undergoes a chemical reaction that both absorbs heat and also consumes some oxygen at the point of the fire, and the combination of these extinguishes the fire. I think the effective fire suppression concentration of HFC-227 is somewhere in the 5% - 10% range (maybe less), so at worst only 10% of the air is displaced and the reduction in oxygen concentration in the room caused by the chemical discharge would be relatively minor, say from 20% down to 18%. Shane Ginnane wrote: I can only own up to being in 2. In neither case was I affected by the gas - I was out the door as soon as I heard it drop. *VERY* good incentive to get moving. Shane IBM Mainframe Discussion List IBM-MAIN@BAMA.UA.EDU wrote on 22/06/2005 11:23:25 AM: Not true, I've been in 3 HALON dumps back in the days it was THE method for computer room FS. One must exit quickly as it will make you short of breath at high enough concentrations since it displaces oxygen. I can best describe the experience as running at 10,000 feet elevation. -- Joel C. Ewing, Fort Smith, AR[EMAIL PROTECTED] -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
There is also a product called Inergen -- a mixture of 52% nitrogen, 40% argon and 8% carbon dioxide -- that claims to be safe to the environment and people. Ned Hedrick Sr. Mgr., Systems Administration Transaction System Architects, Inc. This e-mail message and any attachments may contain confidential, proprietary or non-public information. This information is intended solely for the designated recipient(s). If an addressing or transmission error has misdirected this e-mail, please notify the sender immediately and destroy this e-mail. Any review, dissemination, use or reliance upon this information by unintended recipients is prohibited. Any opinions expressed in this e-mail are those of the author personally. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
In a message dated 6/22/2005 1:37:48 P.M. Central Daylight Time, [EMAIL PROTECTED] writes: Please watch your attributions; I was not the author of the above. Stripping the leading on quoted material is at best misleading. OK. Sorry. Bill Fairchild -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
This is attributable to me, for the record. -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Shmuel Metz (Seymour J.) Sent: Wednesday, June 22, 2005 11:42 AM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: HALON et al In [EMAIL PROTECTED], on 06/22/2005 at 09:03 AM, Bill Fairchild [EMAIL PROTECTED] said: In a message dated 6/22/2005 7:24:23 A.M. Central Daylight Time, [EMAIL PROTECTED] writes: Not true, I've been in 3 HALON dumps back in the days it was THE method for computer room FS. One must exit quickly as it will make you short of breath at high enough concentrations since it displaces oxygen. Please watch your attributions; I was not the author of the above. Stripping the leading on quoted material is at best misleading. -- Shmuel (Seymour J.) Metz, SysProg and JOAT ISO position; see http://patriot.net/~shmuel/resume/brief.html We don't care. We don't have to care, we're Congress. (S877: The Shut up and Eat Your spam act of 2003) -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: HALON et al
Hi, I've taken an armature interest in computer security. I just flipped through the book, Information Warfare, by Winn Schwartau. The book doesn't appear to focus on mainframes per se but the material I've read so far could apply to IBM machines. The more the mainframe becomes a web server the more the books I've picked up apply to the mainframe. I always think of : 1. Storage Key protection. 2. Segment protection. 3. Low address protection. 4. Page protection. 5. RACF and other offerings. 6. Page 0 and Key 0 7. Supervisor vs. problem state. The books I'm reading now about security are real eye openers when it comes to security. Paul Hanrahan -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Shane Ginnane Sent: Tuesday, June 21, 2005 9:42 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: HALON et al I can only own up to being in 2. In neither case was I affected by the gas - I was out the door as soon as I heard it drop. *VERY* good incentive to get moving. Shane IBM Mainframe Discussion List IBM-MAIN@BAMA.UA.EDU wrote on 22/06/2005 11:23:25 AM: Not true, I've been in 3 HALON dumps back in the days it was THE method for computer room FS. One must exit quickly as it will make you short of breath at high enough concentrations since it displaces oxygen. I can best describe the experience as running at 10,000 feet elevation. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
