• NFPA  58 [2014]:

    I cannot find information on the presentation of plans [drawings]  for the AHJ. Thank you for your help. Mario Berrios
    last modified by cowprophet
  • Does NFPA 30 apply to a class IIIA combustible liquid?

    Hello my question is regarding the applicability of NFPA 30 to a class IIIA combustible liquid. Suppose my mixture's flashpoint is at 150 degrees F. So it's not a "flammable liquid" under NFPA classification but only...
    last modified by allacademic
  • Flammable Storage cabinets

    Is there a code reference that prevents the storage of cardboard, paper, etc. within flammable cabinets?   I can only find the code that prevents storage of incompatible materials. Is there something more approp...
    last modified by bill.kapella@lmco.com
  • Ignition Sources in Appliances

    As part of our processing we shred tons of appliances.  Is anyone aware of possible ignition sources in appliances that have been shredded?  We have had a couple fires break out in these shredded piles, even...
    last modified by jdedario
  • We test products so sometimes we have a number of flammable aerosols.  How many can be stored on the lab bench ?

    We test products so sometimes we have a number of flammable aerosols. How many can be stored on the lab bench ?
    last modified by busbyamr
  • Diesel Fuel Storage Tank Fire Protection

    In one of my project (Fiber Cement board Factory) there is diesel storage tank of 15 m3. Below are my queries:    1) What fire protection system is required for this tank as per NFPA 30 or other NFPA standa...
    last modified by abdulrafay80
  • NFPA 496 Applied to Compressor Building

    NFPA496: This is a purge and pressurize standard that I have only ever seen applied to electrical cabinets located in Class 1 Div 2/Zone2 areas; and MCC or control rooms located within a Class 1 Div2/Zone 2 building.H...
    last modified by vginter
  • NFPA 496 Question

    NFPA 496 Question Using a purged enclosure with general purpose equipment in a CL1 Div 2 area . If the equipment brings a combustible liquid into the purged enclosure can you use air for the purge? Would an inert p...
    last modified by kpenson
  • Distance between power transmission line and storage of flammable liquids (Petrol, Diesel)?

    Does any NFPA code provide safe distance guidelines between power transmission lines (high voltage) and storage of flammable petroleum products. (such as that on a gas station or petroleum depot) 
    last modified by haris_387
  • Questions concerning the judgment method and the safety action criteria for gas leakage from the LNG storage tank

    Title : Questions concerning the judgment method and the safety action criteria for gas leakage from the LNG storage tank   In order to complete the safety management standards of LNG storage facilities in K...
    created by dkbaek
  • ESD and Hazardous waste storage

    We have some 55 gal drums of flammable waste on site.  We keep them grounded with clamps to prevent static discharge.  Should we connect them through a resistor to slow the discharge and prevent sparking whe...
    created by stephen.mcdonald
  • NFPA terms (division/Zone)

    Hi,  In the NFPA 497 we speak about "division" and "zone". But, the area around figures still the same even if we speak about zones or divisions. Someone can tell what is the differences between this two terms ...
    last modified by ddufour
  • Parking Smoke system

    For parking smoke system, what is the max. number of smoke zone that can be connected to one smoke fan?
    last modified by amr.elkranfely
  • Hazardous Waster Storage

    Is there a space or building size requirement for hazardous waste that is stored onsite?  If so, where can I find more information on this topic?
    last modified by jwaite
  • Is it safe to make wet blasting on the top of crude oil floating roof tank

    if its not safe where i can find this issue from NFPA
    created by mohammedelassall
  • shell to shell spacing

    there is a methanol storage facilities; 4 double roof tank will be constructed in common dike area with clock wise arrangement  and diameter of   each tank is supposed to be 55 meters. based on Nfp...
    created by b.jabarzade
  • Does anyone have information or a form for conducting a root cause analysis for fires you can share?

    There is a lot of RCA information available, but I have not found anything that is specifically designed for fires.
    last modified by willistowerswatson
  • Question regarding high voltage power lines

    Hi, I am looking for any guidance on separation distances between hazardous chemicals (both compressed gases and liquid oxidizers) and high voltage power lines. I have searched through the NFPA codes with little succe...
    last modified by tzeweiu
  • Fuel Dispensers

    Does anyone have a list or know of an agency that would have list of fuel dispenser manufactures and models that meet  the NFPA30A code?
    last modified by edcollupy
  • Is the fire class in NFPA 400 ( I - V) the same as Fire Hazard ( 1 - 5) on the MSDS?

    is the fire class in NFPA 400 ( I - V) the same as Fire Hazard ( 1 - 5) on the MSDS?