Scot, I believe that the practice of dump testing of Halon systems (either with 1301 or 122) contributed to the penguins getting a suntan. If a more reasonable perspective had been taken whereby dump testing had been eliminated in lieu of fan testing the fire extinguishing ozone depletion concern would have been a non issue. Then again lots of money was made in the process.
Much of this not science but rather public policy. If it were otherwise nuclear power would dominate the United States, electric cars would be cost effective and coal and oil with their greenhouse gas emissions would be left in the ground. As for sprinklers the backflow issues, and now diesel prime mover emissions will need to be nipped in the bud. (NJ has a proposal afoot to return to the 1700 ft NSPC RPZ rule rather then the current 0 ft. rule) John Drucker Fire Protection Subcode Official (AHJ) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of å... .... Sent: Wednesday, June 18, 2008 7:16 PM To: [email protected] Subject: Sapphire thank you for the criticism. yep. that is all we are doing here. you and I are--betting. wild-eyed betting. but someone has to be the first to open the debate. and the pioneers usually got the arrows. btw, and for a start-- flourine is the most electronegative atom on the periodic chart. Novec has several. the point was not a concern about how many pounds of Halon was, or Novec will be, released, but how much damage it will eventually do. And the speculation was not focussed on greenhouse gases, though that is collateral damage, but upon the older issue of ozone. Pound for pound, some halocarbons do damage in exponentially greater proportion than a pound of CO2 or SO2 or NOx, etc, Once the Halogen-C bond is scissored, the halo-radical can wreak its damage through a relatively long lifetime extending through many, many reactions. I am sure some scientist will step forward and say it is safe. Nicotine cigarettes made medicinal claims for years. I don't think this manufacturer would go that low. we will know in 20 years or so. about the time data should be coming in on another halo-product, the Teflon pan. But this original thread was not that far afield: it is fire suppression related. and in areas where wall integrity or system maintenance can be hit-or-miss, these one-shot systems are better backed with sprinklers in fact. There is a tie-in, if we must have one. I never dissed the manufacturer, just am specious of the product. The company you mentioned is one of THE BEST to work for. period. I have heard my words before called--a quack, but gem of a bird, I want to duck in fact. scot deal excelsior fire _______________________________________________ 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) _______________________________________________ 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)
