Now that’s is just funny but unfortunately is sometimes typical for a technical 
committee. 

Happy Memorial Day weekend. 


John

John August Denhardt, P.E.
Vice-President Engineering and Technical Services
American Fire Sprinkler Association 
301-343-1457

> On May 22, 2020, at 3:49 PM, Sprinkler Academy - C Bilbo via Sprinklerforum 
> <[email protected]> wrote:
> 
> 
> To lighten the mood as we go into Memorial Day weekend....
> 
> Sometime around 2007, there was a rather large discussion on the size of a 
> piece of combustible dust.  The standards are not aligned (see 'combustible 
> dust' in the Glossary of Terms).  The argument, I mean debate, of the floor 
> of the worldwide NFPA Technical Meeting was intense.  People got very 
> emotional about how many microns it takes to be an official dust particulate. 
>  From all sides of the room came shouts of "360 microns", "400 microns", "500 
> microns", and what seemed HUGE: "600 microns"..... for the record a micron is 
> about the thickness of a sheet of paper.  
> 
> The debate went for what seemed like hours! (it was about 60 minutes) And the 
> vote failed to change anything........
> 
> I could listen to hours and hours of fire sprinkler debate, but I was dyin' 
> that day!!
> 
> 
> 
> 
> 
> 
> It should be recognized that the above is my opinion as a member of the NFPA, 
> and has not been processed as a formal interpretation in accordance with the 
> NFPA Regulations Governing Committee Projects and should therefore not be 
> considered, nor relied upon, as the official position of the the NFPA, nor 
> any of their technical committees. 
> 
> Sincerely,
> 
> 
> Cecil Bilbo, president 
> Academy of Fire Sprinkler Technology
> Champaign, IL
> 217.607.0325
> www.sprinkleracademy.com
> [email protected]
> ??
> OUR STUDENTS SAVE LIVES!!
> 
> 
> From: Sprinklerforum <[email protected]> on 
> behalf of Ron Greenman via Sprinklerforum 
> <[email protected]>
> Sent: Friday, May 22, 2020 12:36 PM
> To: [email protected] 
> <[email protected]>
> Cc: Ron Greenman <[email protected]>
> Subject: Dust Collection
>  
> Does anyone know the NFPA references for dust ducting and collection for 
> compressed paper laminate production? I am home (of course) and my books are 
> 75 miles away. Thanks.
> 
> 
> Ron Greenman
> 
> [email protected]
> 
> 253.576.9700
> 
> The Universe is monstrously indifferent to the presence of man. -Werner 
> Herzog, screenwriter, film director, author, actor and opera director (1942-)
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