Page 43 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

CT value: Numerical value used for identifying level at which pathogen
destruction/inactivation occurs. For the purposes of this manual, CT values will
be based on free chlorine levels in MG/L (ppm) and time in minutes (CT
value=MG/L x minutes).

Cut leafy greens: Fresh leafy greens whose leaves have been cut, shredded,
sliced, chopped, or torn. Leafy greens include iceberg lettuce, romaine lettuce,
leaf lettuce, butter lettuce, baby leaf lettuce (that is, immature lettuce or leafy
greens), escarole, endive, spring mix, spinach, cabbage, kale, arugula, and chard.
Herbs such as cilantro or parsley are not considered leafy greens.

Date/time of onset: Date/time on which the first symptom appeared.

Deck drain: The physical connection between decks, SCUPPERS, or DECK
SINKS and the GRAY WATER or BLACK WATER systems.

Deckhead: The deck overhead covering the ceiling area constructed from several
panels, also known as the visible part of the ceiling.

Deck sink: A sink recessed into the deck and sized to contain waste liquids from
tilting kettles and pans.

Diarrheal disease: Three or more episodes of loose stools in a 24-hour period or
a greater than normal (for the person) number of loose stools.

Disinfectant: A chemical or physical agent used to kill microbes.

Disinfection: A process (physical or chemical) that destroys many or all
pathogenic microorganisms, except bacterial and mycotic spores, on inanimate
objects.

Distillate water: Water condensed from vapor during the evaporation process.

Distillate water lines: Pipes carrying water condensed from the evaporators and
that may be directed to the POTABLE WATER system. This is the VSP
definition for pipe striping purposes.

Double check (DC) valve assembly: A BACKFLOW PREVENTION
ASSEMBLY consisting of two internally loaded, independently operating check
valves located between two resilient-seated shutoff valves. These assemblies
include four resilient-seated test cocks. These devices do not have an
intermediate vent to the atmosphere and are not APPROVED for use on
CROSS-CONNECTIONS to the POTABLE WATER system of cruise
vessels. VSP accepts only vented BACKFLOW PREVENTION DEVICES.

3.0 Definitions; 14