Definition(s)
Water-based Extinguishing Medium
Water-based extinguishing medium is freshwater or seawater with or without additives mixed to enhance fire-extinguishing capability.
Source: IMO MSC.1/Circ.1387, Revised Guidelines for the approval of fixed water-based local application fire-fighting systems for use in category A machinery spaces, 10 December 2010, International Maritime Organization. Regulatory Guidance
Source: Resolution A.800(19), Revised Guidelines for Approval of Sprinkler Systems Equivalent to that Referred to in SOLAS Regulation 11-2/12, 23 November 1995, International Maritime Organization. Regulatory Guidance