1.1 Scope.
1.1.1 This standard contains minimum requirements for the design, installation, and maintenance of foam-water sprinkler and spray systems. These systems shall be designed with the required density for either foam or water application as the controlling factor, depending on the design purpose of the system. It is not the intent of this standard to specify where foam-water sprinkler and spray protection is required. The determination of where foam-water sprinkler and spray systems are required shall be made in accordance with such applicable building and fire codes or standards such as NFPA 30 or NFPA 409.
1.1.2* This standard shall apply only to systems using low-expansion foam.
A.1.1.2 For medium- and high-expansion foam, see NFPA 11.

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