Reza, Lots of anecdotes and few answers. Protein and Flouroprotein foams were indeed made from organic materials, typically the by-products of the slaughter house. Most, according to folks older than me, was made from chicken feathers. Flouroprotein was an attempt to extend the shelf life of these protein based products. AFFF is typically (and originally) used for hydro carbons but if so listed is appropriate for ketones. Percentages usually have to do with the fire being fought: 1% for training, 3 & 6% for organics and hydrocarbons, 10% for ketones, and is tied to the listings. MilSpec is, or so I'm told, exactly the same as non-MilSpec except for the designation. This is similar to pumps where those being sold as agricultural units are far cheaper than their fire fighting equivalents merely because of the costs of the listings and not due to quality. So MilSpec labeled foam is more costly due to the increased testing costs being charged only to customers requiring MilSpeced products rather than distributed amongst all customers.
On 10/9/07, George Church <[EMAIL PROTECTED]> wrote: > Blood foam is the other term for it, since its from horse/cow blood. > I loved going over to the old National foam plant in Exton, PA on a humid, > still morning. > > The military spec new foam was worth the doubling in price for keeping your > stomach intact. > > glc > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Roland > Huggins > Sent: Tuesday, October 09, 2007 11:39 AM > To: [email protected] > Subject: Re: Different types of foam usage? > > IN addressing the type of foam, I suspect it is pretty much just > AFFF. Protein foam is a really old type that stinks to high heaven. > We actually had it at the plant I spent 5 yrs at (along with some > 1952 Rockwood deluge valves activated by 220 vdc circuits). The > fluoroprotein I believe was an effort to improve the aromatic old > protein. > > Roland > > On Oct 9, 2007, at 6:26 AM, Reza Esmaeili wrote: > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
