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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
in Industrial Hazards
Drilling rigs usually have their own fixed water spray system but how can we, as a client ensure that it is sufficiently designed? Secondly, is there a requirement of any additional firewater inventory to cool down the rig structure, while we have sufficient inventory for cooling other equipment at site e.g. diesel operated power generators, etc.… (Show more)
in Industrial Hazards
What happened to NFPA 49 - "Hazardous Chemicals Data?" I only see it in the current "Fire Protection Guide to Hazardous Materials, 2010 Edition." If it no longer exists, where can I find the data? For example, I want to confirm the current Fire Diamond rating for Chlorine.
in Industrial Hazards
Hello, everyone! We have three substaitions and each substaion have mutiple electrical distributions stored in every container, now, we need to arrange the electrical containers in the ground plan, please see the attachement, what gap should be remained among them, does anyone konw  which NFPA codes should be followed! Thanks a lot!
in Industrial Hazards
Kindly clarify exact relation between Fire load and Hazard category of  an occupancy/Industry (Light/Ordinary/High) in perspective of designing fire protection system of an industry.....      
in Industrial Hazards
Hello,  I am looking for information on how to take exception to NFPA 86 explosion relief requirements for Class A & B Natural Gas fired Ovens. My situation: I have an oven that cannot physically meet the 15 to 1 ratio relief area requirement because of external structure and internal components? Is there a form or process to use to take exception… (Show more)
in Industrial Hazards
Hi, I would like to know the requirements and equations I need to use based on NFPA codes, to : 1) Size the Explosion relieving Devise , i.e., Explosion Panel or Explosion Hatch for Starch Siloes used in Pulp& Paper Mills to store Starch. I am interested i8n knowing the requirement for adding these devises for Existing Bolted Siloes or New Siloes.… (Show more)
in Industrial Hazards
Hello dear community!   I've come here in a quest to at least lay the basis of a future research on the topic of eco-friendly firefighting foams. As you all know the typical types of firefighting foams are AFFF, FFFP, P, S, AR and so on meaning they range from protein based to fluoride and Perfluorooctanesulfonic based ones which are in general… (Show more)
in Industrial Hazards
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