MAQ liquid VS Pounds

[Hyrax4978]

I would like to see if someone can clear something up for me. I am working on a project where the professional said that we can have corrosives, toxics and highly toxics in both solids and liquids up to the total quantity listed. I was under the impression that you can only have one or the other.

an example would be if you had some products in lbs and some in gallons, you would convert them and bring them together to compare to one of the columns. not that you would compare your solids to solids and liquids to the gallons. in that scenario you could have corrosives up to 5,000 pounds of solids and an additional 500 gallons of liquids.

Any insight would be greatly appreciated.

Thank you.

 

[Hyrax4978]

I wanted to see if I could rephrase my question. in table 307.1(2) are we allowed (storage only for this example) corrosive solids up to 5,000 lbs and an additional 500 gallons of liquid on top of that, as well as 150 lbs of liquified gases on top of that? footnote b clarifies that the aggregate quantity in use and storage shall not exceed the quantity for storage, but i can not find anywhere that delineates that we can have solids, liquids and gasses each up to those totals, or if its a prorated scenario that says the sum of the ratios must be 1 or under. Any help would be appreciated.

 

[Yankee Chronicler]

The 2021 IBC Commentary for Table 307.1 says the following:

The presence of any one of the materials listed in
Table 307.1(1) in an amount greater than allowed
requires that the building or area in which the material
is contained be classified as a Group H, high-hazard
occupancy.

If I understand your question correctly, I think the answer is that you can store more than one type of hazardous substance in the same area and that the limit is based on the aggregate total. The way you expressed it, "its a prorated scenario that says the sum of the ratios must be 1 or under," seems to me to be the appropriate approach.

Be sure you also look at Section 414 for additional discussion of control areas.

 

[blugosi]

Also, check the MSDS of the chemicals you intend to store.
In some cases there may be restrictions to store specific hazardous( fire, corrosion, oxidizing, toxicity etc) materials together, regardless of quantities.

 

[RLGA]

The 2021 IBC Commentary for Table 307.1 says the following:



If I understand your question correctly, I think the answer is that you can store more than one type of hazardous substance in the same area and that the limit is based on the aggregate total. The way you expressed it, "its a prorated scenario that says the sum of the ratios must be 1 or under," seems to me to be the appropriate approach.

Be sure you also look at Section 414 for additional discussion of control areas.

I disagree. There is nothing in the text of the code or the tables, other than footnote 'h' in Table 307.1(1), that requires the sum of the ratios (i.e., actual to allowable quantities) to be less than 1.