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Subject: Re: flammability class vs NFPA number
Date: Mon, 3 Mar 2008 11:54:06 -0500
Author: ILPI 		Next by Date:
Subject: Re: flammability class vs NFPA number
Date: Mon, 3 Mar 2008 14:06:16 -0500
Author: "Benedetti, Bob"


Date: Mon, 3 Mar 2008 13:10:22 -0500
Reply-To: kauletta**At_Symbol_Here**NOTES.CC.SUNYSB.EDU
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Kim Auletta <kauletta**At_Symbol_Here**NOTES.CC.SUNYSB.EDU>
Subject: Re: flammability class vs NFPA number
In-Reply-To: <p06020409c3f1da4f0344**At_Symbol_Here**[192.168.2.4]>
The NIOSH Pocket Guide also lists the Flammable Class:

http://www.cdc.gov/niosh/npg/

Kim Auletta
Lab Safety Specialist
EH&S    Z=6200
Stony Brook University
kauletta**At_Symbol_Here**notes.cc.sunysb.edu
631-632-3032



ILPI  
Sent by: DCHAS-L Discussion List 
03/03/2008 12:15 PM
Please respond to
ILPI 

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Subject
Re: [DCHAS-L] flammability class vs NFPA number




Definitions of flammable liquid classes:
http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9752&p_text_version=FALSE

You can read, but not print or view the 704 standard by going here 
and following the appropriate links:
http://www.nfpa.org/aboutthecodes/list_of_codes_and_standards.asp

As a brief summary, NFPA 704 assigns:

Rating: 4
                 Flash point below 22.8 C (73 F) and a boiling point below 

38.8 C (100 F)

Rating: 3
                 Flash point below 22.8 C (73 F) and a boiling point at or 

above 38.8 C (100 F)
                 OR
                 Flash point at or above 22.8 C (73 F) and below 38.8 C 
(100 F)

Rating: 2
                 Flash point at or above 22.8 C (73 F) and below 93.4 C 
(200 F)

Rating: 1
                 Flash point at or above  93.4 C (200 F)
                 OR
                 Flash point at or above 35 C (95 F) that does not sustain 
combustion
                 or has a certain water-miscible composition etc.
                 OR
                 Has no fire point.

Best regards,

Rob Toreki

>Can anyone tell me how the number assigned in the NFPA diamond for
>flammability corralates (if it does) with the flammability class of 
>the solvent? 
>That is, are all "4"s on the diamond solvents that are in Class IA & 
>IB, etc.  I
>do not have the code books, and so far have not been able to locate this 
info
>on the web.
>
>Thanks in advance for any wisdom,
>Sammye

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