MAQ when mixing materials in a control area

[nealderidder]

The MAQ per Control Area given in the fire code is divided by material type and characteristic (combustible-dust or Flammable-Liquid). What if I have more than one of these in a single Control Area? For instance, Say I'm putting 120 gallons of Flammable liquid (ignoring the allowed increases) and 150 pounds of Flammable gas in the same Control Area used for storage. Is this allowed? Seems like a silly question because I could then throw 125 pounds of fireworks, 125 pounds of Flammable solids etc. etc.

I guess the question is, when mixing types of materials, how does one arrive at allowed quantities of each?

Thanks,
Neal

 

[RLGA]

Each hazardous material is looked at independently of the others. There are no requirements addressing mixed quantities of differing hazardous materials.

 

[nealderidder]

Really? I'm sure you know what you're talking about Ron but that seems crazy. I can take the max quantity of everything in that table and throw it all into the same room with 1HR walls and I'm good?

It seems like 125 (5 over limit) gallons of flammable liquid is less risky than 120 gallons of flammable liquid + 125 pounds of flammable solid + 150 pounds of flammable gas + etc. etc. etc.

Go figure!

 

[cda]

If compatible

And no other seperation requirements


Think of it this way

Four sided Building

That four sided Building is a control area,

So do you only allow one chemical type in the buikding??

 

[steveray]

Never thought about it before, and it does seem weird, but I agree that is what the code says...Maybe when they developed the tables, they took that into account?

 

[cda]

It has nothing to do with the tables, it is the chairs

Have to take the code book as a whole, don’t buffet it, and just take some sections.