If a value for measurement as given in this standard is followed by an equivalent value in other units, the first stated is to be regarded as the requirement.

The SI units and their conversion factors are listed in Table 1.3. Two units outside of but recognized by SI (liter and bar) are commonly used in interna¬tional fire protection.

Metric units of measurement in this standard are in accordance with the modernized metric system known as the International System of Units (SI). In such cases, the designer is responsible for demonstrating the validity of the approach.ġ.3 Units. It is intended that a designer capable of applying a more complete and rigorous analysis to special or unusual problems shall have latitude in the development of such designs. The standard does not do away with the need for the engineer or for competent engineering judgment. Therefore, the designer is cautioned that the standard is not a design handbook. The user of this standard must recognize the complexity of clean agent fire extinguishing systems. Technology in this area is under constant development, and this will be reflected in revi¬sions to this standard. Nothing in this stand¬ard is intended to restrict new technologies or alternative arrangements provided the level of safety prescribed by this standard is not lowered.ġ.2.2 No standard can be promulgated that will provide all the necessary criteria for the implementation of a total flooding clean agent fire extinguishing system. This standard is prepared for the use by and guidance of those charged with purchasing, designing, installing, testing, inspecting, approving, listing, operating, and maintaining engineered or pre-engineered clean agent extinguishing systems, so that such equipment will function as intended throughout its life. It does not cover fire extinguishing systems that use carbon dioxide or water as the primary extinguishing media, which are addressed by other NFPA documents.ġ.2.1 The agents in this standard were introduced in response to international restrictions on the production of certain halon fire extinguishing agents under the Montreal Protocol signed September 16, 1987, as amended. This standard contains minimum requirements for total flooding and local application clean agent fire extinguish¬ing systems. NFPA 2001 Standard on Clean Agent Fire Extinguishing Systemsġ.1 Scope.

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