The 10,000 gallon limit is in Table 7, Maximum Indoor Storage Quantities of
Class I, II or III Liquids, of data sheet 7-88. That if for ground floor
tanks. If on an upper floor the limit is 2000 gallons. But, again, that
was the 1999 that is superceded by something. Chris said he could not find
it, presumably in the online access.
John Hoffman P.E. | Fire Protection Engineer | Facility Engineering
Services, KCP, LLC - Burns & McDonnell Engineering | National Nuclear
Security Administration's Kansas City Plant | Operated by Honeywell FM&T |
2000 E. 95th St | Kansas City, MO 64131 | ph 816-997-7213
From: <[email protected]>
To: <[email protected]>
Date: 07/06/2009 04:14 PM
Subject: RE: Class IB & IC Water Miscible
Sent by: [email protected]
Where is the 10,000 gallon limit referenced?
Craig L. Prahl, CET
Fire Protection Specialist
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
PO Box 491, Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[email protected]
http://www.ch2m.com
-----Original Message-----
From: [email protected] [
mailto:[email protected]] On Behalf Of
[email protected]
Sent: Monday, July 06, 2009 5:07 PM
To: [email protected]
Subject: Re: Class IB & IC Water Miscible
FM 7-88 was the data sheet on Storage Tanks for Flammable and Combustible
Liquids. The latest revision date on the paper copy I have is May 1999.
I don't think it would have applied in your case. The guideline for indoor
storage tanks of one or more tanks is a maximum of 10,000 gallons if the
liquid is a class 1 liquid. You are way over that. And of course they
require sprinklers and drainage to a safe location for the tank spill and
sprinkler discharge water. I am guessing it was their version of NFPA 30.
John Hoffman P.E. | Fire Protection Engineer | Facility Engineering
Services, KCP, LLC - Burns & McDonnell Engineering | National Nuclear
Security Administration's Kansas City Plant | Operated by Honeywell FM&T |
2000 E. 95th St | Kansas City, MO 64131 | ph 816-997-7213
From: "Chris Cahill" <[email protected]>
To: <[email protected]>
Date: 07/06/2009 03:47 PM
Subject: Class IB & IC Water Miscible
Sent by: [email protected]
Class IB & IC Water Miscible - Think liquor
Stationary tanks - 15,000 gallons each, 18 within containment area inside a
building. Think one hell of a party.
Got a code reference to a sprinkler density/protection scheme? FM 7-29
references a 7-88 but I can't find any 7-88. NFPA 30 (24.6) doesn't seem
to say anything much about this even suggesting it's OK with none (after a
hazard analysis, of course). If the goal is to keep a fire not involving
the liquid from breaking a tank probably don't need much density. If the
goal is to save anything after a tank rupture and fire then foam is
probably the only answer. I'd think the code or standard would say
something?
Most
of the building is drums in racks so I think were at .6/3000 plus in-racks.
Thinking just extending into this small area has very little cost.
Yes, yes I know PE should be involved to specify the approach for the
holistic fire protection matters including spill containment, venting, tank
specifications, electrical concerns etc. Lets for now assume this is the
real ugly world and this party doesn't exist yet.
Chris Cahill, P.E.
Fire Protection Engineer
Sentry Fire Protection, Inc.
763-658-4483
763-658-4921 fax
Email: [email protected]
Mail: P.O. Box 69
Waverly, MN 55390
Location: 4439 Hwy 12 SW
Waverly, MN 55390
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