ISO 15371:2009 applies to the design, testing, and operation of pre-engineered fire extinguishing systems to protect the galley hoods, ducts, fryers and other grease laden appliances. Pre-engineered fire-extinguishing system units are also required to comply with requirements for the construction and components performance as applicable to specific types, designs, sizes and arrangements. ISO 15371:2009 also provides minimum requirements for the testing and evaluation of components.A product that contains features, characteristics, components, materials or systems that are new or different from those covered by the requirements in ISO 15371:2009 and that involve a risk of fire, electric shock, or injury to persons, shall be evaluated using the appropriate additional component and end-product testing.