I assume the sulfuric acid is purchased from a vendor at a given concentration. If their SDS shows it as a corrosive or water reactive materials the building codes will require the storage of the as received materials to comply with the relevant chapters of the IBC and IFC. They will apply to where the as received materials are stored and handled.

It the sulphuric acid is diluted low enough that it is no longer a corrosive or water the relevant chapters of the IBC and IFC if they are in a different control area. Since the control reas are limited per floor in a building this is often not possible.

The building is either 100% sprinklered or you cannot double the MAQ so this will not be affected by whether it is or is not dilute enough (usually).

So I am suggesting that maybe someone is asking the wrong question.

Glad to discuss offline if you want to give me a call.

Can anyone help with this? I was asked to determine at what concentration would a sulfuric acid solution be considered no longer water reactive (or how dilute does it need to be)? This is in the context of storage and firefighting/fire suppression systems (Building Code for Water Reactive Materials & NFPA 704 Annex F).

Maybe it is a simple calculation but my brain can’t handle it today. Thanks!!

Melissa Ballard

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