Up to what fraction of a survival craft's required drinking water may be produced by a manually-powered reverse osmosis desalinator?

The correct answer specifies that up to two-thirds of a survival craft's required drinking water may be produced by a manually-powered reverse osmosis desalinator. This is significant because it highlights the capabilities of such devices in emergency survival situations, especially at sea where freshwater is scarce.

Manually-powered reverse osmosis systems act by filtering seawater through a membrane, effectively removing salt and other impurities to convert it into drinking water. The standard regulation permits the production of a substantial portion of the required drinking water this way to ensure survival craft can efficiently provide adequate sustenance for individuals on board during extended periods at sea.

Understanding this fraction is important, as it informs the design and planning of survival equipment on vessels. It allows operators to gauge how much water supply can be sourced from a survival craft’s onboard desalination option, ensuring compliance with safety regulations while maximizing the available resources for survival. This emphasizes the critical nature of having such equipment and knowing its limitations during emergency situations at sea.