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Subject: flammability class vs NFPA number
Date: Mon, 3 Mar 2008 10:44:22 -0500
Author: Sammye Sigmann 		Next by Date:
Subject: Re: flammability class vs NFPA number
Date: Mon, 3 Mar 2008 13:10:22 -0500
Author: Kim Auletta


Date: Mon, 3 Mar 2008 11:54:06 -0500
Reply-To: ILPI <info**At_Symbol_Here**ILPI.COM>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: ILPI <info**At_Symbol_Here**ILPI.COM>
Subject: Re: flammability class vs NFPA number
Comments: cc: Sammye Sigmann
In-Reply-To: <LISTSERV%200803031044227968.0280**At_Symbol_Here**LIST.UVM.EDU>

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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