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plousmyth
I am doing research on hazardous materials and writing of ordinances.  I find that most cities do not permit pool construction/electrical supply wholesale businesses selling pool chemicals on the side to store hundreds of gallons of chlorine bleach and muriatic acid outdoors year round and unprotected from the elements on open parking lots.  Nor… (Show more)
in Code Enforcement
rgrothe
NFPA rating guide   Greetings all, I have been having a tough time trying to locate the Diamond numbering for Avgas and Jet A fuels. Can someone please point me in the right direction or show me what the diamonds should look like?   Thank you 
in Code Enforcement
emil.ohler
Is schedule 10 piping allowed to be threaded? The code 'shall' and the annex 'should' seem to be in conflict as you can see below In the 2016 NFPA 13 it states : Threaded Pipe and Fittings. 6.5.1.2* Steel pipe with wall thicknesses less than Schedule 30 [in sizes 8 in. (200 mm) and larger] or Schedule 40 [in sizes less than 8 in. (200 mm)]… (Show more)
in Code Enforcement
duncan.cleminshaw
Hello Xchange Members,   I work in residential solar.  When DC conductors are run on the roof between solar arrays, the conductors are usually routed in EMT.  Does the NEC allow for other types of conduit (like PVC) or raceways when placed on a sloped roof and exposed to the elements?  What code articles are applied in this example?     Is… (Show more)
in Code Enforcement
1075tech
NFPA 31 - 7.12  Abandonment and Removal from Service of Tanks and Related Equipment states "...if a tank and it's related piping are abandoned for whatever reason...". My issue is with the word "and".   A customer had a new fill and vent installed on an inside oil tank but left the old fill and vent piping in place, not connected to the tank.   … (Show more)
in Code Enforcement
james.darrow
Hello, I have an interpretation question about NFPA 45, particularly about NFPA 45 (2015) section 8.3.4 that discusses waste stored/generated in the lab. [8.3.4 Liquid waste containers stored in laboratory work areas shall not exceed 20 L (5 gal).] The question is whether this refers to maximum waste container size allowed in a single lab (i.e. no… (Show more)
in Code Enforcement
sdube
In NFPA 72-2013 there are mentions of (SIG-ECS, - IDS, -FUN, -SSS, -PRS) where do I find their descriptions?
in Code Enforcement
jimhillhome
Can someone tell me,  why are home depot and lowes allowed to sell outlets that aren't TR? i just added them to my addition and inspector says i have to change them all. My wife has RA(rheumatoid arthritis) and doesn't want them.
in Code Enforcement
mpetrie
Looking for the appropriate code. I have a multi level building that is under construction currently. On walk through there are no fire extinguishers anywhere in this building. Any help is appreciated. Thanks
in Code Enforcement
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