The SFPE Handbook and various vendors advise that subsurface injection of foam is not recommended for internal, floating roof tanks. Are there any studies or incidents that support this position? Thanks
Hello! In NFPA 59A is there a 50 ft distance requirement from sloped LNG trenches (underneath LNG piping) to closest source of ignition such as generators, Electrical MCC equipment or Thermal oxidizers? Could not find any direct interpretation for this but I was told that that might be an interpretation that some had. Are paths of travel for…(Show moreShow less)
Cubic Foot Rule Good morning, NFPA 654 2020, N 220.127.116.11.1.1 notes, where an explosion hazard exists, AMSs with a dirty side volume of 8 cubic feet or greater shall be located outside of buildings or adhere to N 9.7.1. We provide AMS with centrifugal separation, cartridge filters, and 4 hp blower. Under our horizontal centrifugal separator, the…(Show moreShow less)
I work for an HVAC service and installation company providing service on residential, light commercial and industrial equipment. We have acknowledged that our current uniforms are lacking in the correct level of protection for the employees, polyester and polyester blends. This choice of uniforms was done to provide some relief from the extreme…(Show moreShow less)
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 appropriate?
I saw a recent posting regarding flammable liquid storage cabinets that has the following statement. "Do not store anything on top of the cabinet." I believe that it is a good management practice not to store items on top of a cabinet however I not sure that it is a regulatory (OSHA, federal or states) or NFPA requirement. I recognize that there…
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 a "combustible liquid". I am reading that NFPA 30 requirements apply to storing liquids that are both combustible and flammable. If…(Show moreShow less)
Looking at the Administration Chapter of the 2018 NFPA 30 and the information provided, the storage, handling, and use of that liquid should comply with the provisions of NFPA 30. The word "and" in the context of sentence in Section 1.1 is not a noun to be used as a logical operator that requires both of two inputs to be present or two…