CO2 Bank storage for Flooding system

[Guest guest]

Guys, Thanks for all the response. As a Safety professional i have the same opinion as of yours to keep cylinder banks outside the shed. But this is not convincing unless we have some standard reference. Someone pointed out that compressed gas cylinder should be kept in the well ventilated area. I agree but what is defined as a well ventilated space. My shop floor has a ventilation of 6 airchanges / hr. Is this not well ventilated? CO2 flooding, when system gats activated it releases CO2 in the protected room so how this is different than the CO2 bank leak? And we keep CO2 fire extinguishers also in the shop floor. I know the quantity of CO2 gas in the CO2 flooding system is much much higher than the CO2 extinguishers but this is not scientific answer. I mean, what we have suggested here is not scientifically proven statement or not authenticated by any standard. Request all

to participate and send me some standard reference or you and i have to convince ourselves that it can be kept inside the shop floor too (if adequately ventilated). Regards Chirag Ashutosh Pattanayak wrote: I would suggest to store utside being pressurised and have the consequence of asphyxiation if inhaled above TLV.This can also avoid any damage to man and machine in case of a blast,eventhough the chances are remote. However appropriate shed to keep away from sun light and rain be arranged and routine inspection a must. I do hope you will like it. To:

indiansafetyprofessionals From: chiragdvyas@...Date: Thu, 10 Jan 2008 17:45:32 +0530Subject: CO2 Bank storage for Flooding system Folks, Where should we locate CO2 cylinder bank (manifold system) used for CO2 flooding? Inside the building or outside the building under the sheded area? Can anyone forward me the Indian regulation pertaining to CO2 flooding system and storage of CO2 cylinders. ________ NFPA 12 refers about CO2 flooding however ambigous on storage of CO2 cylinders. Need your guidance!! Thanks in advance. Regards, Chirag Why delete messages? Unlimited storage is just a click away. It's about getting married. Click here! Try it!

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[Guest guest]

Dear All,

It has been a good debate so

far, on the subjected matter.

Please refer following IS

code (its salient features reproduced which is self-explanatory)

Indian Standard ( IS 6382 : 1984 )

CODE OF PRACTICE FOR

DESIGN AND IN-STALLATION OF

FIXED CARBON DIOXIDE FIRE

EXTINGUISHING SYSTEM

( First Revision )

3.3.1.6 The battery of carbon dioxide cylinders shall be

located in a

room which shall satisfy the requirements of *and where the

ambient

temperature shall not exceed 54°C or below 0°C.

(* 3.3.1 The

total amount of carbon dioxide, calculated according to 3.2

shall be stored in a main

battery of carbon dioxide cylinders conforming

to IS : 7285-1974*.

The carbon dioxide shall conform to IS : 307-19116)

Regards,

JK Das

From: indiansafetyprofessionals [mailto:indiansafetyprofessionals ] On Behalf Of shaji nair

Sent: Monday, January 21, 2008

10:43 AM

To: indiansafetyprofessionals

Subject:

CO2 Bank storage for Flooding system

Dear professionals

Pleases find attached the MSDS for CO2 which will be

helpful no know about CO2 and storage requirements. I too could not

get any legal requirements for storing CO2 bank. However the

requirements of storage of compressed gas cylinders applicable to respective

regions shall be adopted.

When we use CO2 to extinguish fire, after the discharge

of CO2 no one should entre the room with out confirming oxygen

availability (not only using CO2, other wise also). All occupants of

the area should be made aware of CO2 as there is a tendency of

people to entre the area due to curiosity after the fire is extinguished.

Flooding and leaking: flooding is done intentionally to extinguish

the fire. Before activating the system it should be ensured that all are

evacuated or at least informed. (Like alarm) When it leaks nobody knows it

leaking or not as the gas is odourless and colourless.

Keeping a fire extinguisher in the shop floor is not dangerous as

it is intact and no tubes, couplings joints etc are used and it is not getting

heated up to release the over pressure fusible plug.(I suggest instead of CO2

it is better to have DCP and water type extinguishers in shops) But it is not

the scenario of a storage of cylinder bank. Also consider the severity of

explosion of cylinder bank inside a room.

The well ventilated area: from the MSDS you may see that it says the

air to be monitored for oxygen and CO2

Store in cool, dry, well-ventilated, fireproof area, away

from flammable materials and corrosive atmospheres. Store away from heat and

ignition sources and out of direct sunlight. Do not store near elevators, corridors

or loading docks. Do not allow area where cylinders are stored to exceed 52°C

(125°F).

Ventilation requirements:

Mechanical ventilation is satisfactory. Ensure oxygen

concentration remains above 19.5% and Carbon Dioxide concentration does not

exceed 5000 ppm,

Local exhaust at points of emission preferred.

Regards

Prithvirajan

[indiansafetyprofes sionals] CO2 Bank storage for Flooding system

Folks,

Where should we locate CO2 cylinder bank (manifold system)

used for CO2 flooding?

Inside the building or outside the building under the

sheded area?

Can anyone forward me the Indian regulation pertaining to

CO2 flooding system and storage of CO2 cylinders.

________

NFPA 12 refers about CO2 flooding however ambigous on

storage of CO2 cylinders.

Need your guidance!!

Thanks in advance.

Regards,

Chirag

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dear all

Is IS 6382:1984 specify the requirement of storage area (room as referred in IS) ? I don’t have the copy of the IS with me for reference. If you can send the contents of IS in detail it will be very useful.

regards

Prithviraj

[indiansafetyprofes sionals] CO2 Bank storage for Flooding system

Folks,

Where should we locate CO2 cylinder bank (manifold system) used for CO2 flooding?

Inside the building or outside the building under the sheded area?

Can anyone forward me the Indian regulation pertaining to CO2 flooding system and storage of CO2 cylinders.

________

NFPA 12 refers about CO2 flooding however ambigous on storage of CO2 cylinders.

Need your guidance!!

Thanks in advance.

Regards,

Chirag

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dear all

Thank you very much Mr. JK Das

It says shall be stored in a room which shall satisfy the requirements. But what are the requirements? Inside, out side, protected from sun, ventilation, space etc. etc. I hope these requirements are contained in IS for storage of compressed gas cylinders. If anybody can fetch it please communicate

regards

Prithviraj

[indiansafetyprofes sionals] CO2 Bank storage for Flooding system

Folks,

Where should we locate CO2 cylinder bank (manifold system) used for CO2 flooding?

Inside the building or outside the building under the sheded area?

Can anyone forward me the Indian regulation pertaining to CO2 flooding system and storage of CO2 cylinders.

________

NFPA 12 refers about CO2 flooding however ambigous on storage of CO2 cylinders.

Need your guidance!!

Thanks in advance.

Regards,

Chirag

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