Thanks all, everyone noted some valuable points, I got the difference between UL and FM which I list some below some of your nice points: UL is is a product safety testing and certification organization serving insurance industry and "list" items that meet their minimum safety standards. NFPA requires that the equipments to be tested by a recognized organization, so UL listed products are accepted by NFPA. FM is a fire insurance company, when FM insures a project, it has to write a check when a product does not perform (like sprinkler failure), so FM standards are usually more than minimum. Unlike FM, UL is not the insured company and will not write a check if a product does not perform, so UL standard usually meet the minimum safety requirements. UL mark is enough, but if a project is going to be insured by FM, then usually FM approved products are needed. A UL listed product is enough for NFPA, no matter Chinese or American, however an American UL listed sprinkler may have better quality than chinese, because American manufacturers have to compete on both cost and quality. Chinese manufacturers may feel they only have to compete on price. Thanks for your kind comments, I got the point. Reza
[EMAIL PROTECTED] wrote: Reza: You had it right the first time. When a product does not perform, as in a sprinkler failure, the insured "FM" has to write a check. Therefore they are more likely to look at other aspects than UL. Case in point, when UL is asked why they approved a product, that later failed to function, their PR department started cranking out crap about "industry standards, and consensus opinion. Good Luck Joe Manning ************************************** See what's new at http://www.aol.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ 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)
