Systems in which the air movement is caused solely by temperature differences, natural wind or head
wind.
C.16 Non-combustible material
Is a material which neither burns nor gives off flammable vapours in sufficient quantity for self-ignition
when heated to approximately 750 °C, this being determined in accordance with Fire Test Procedure
Code.
C.17 Non-sparking fans
A fan is considered as non-sparking if in either normal or abnormal conditions it is unlikely to produce
sparks.
C.18 Open ro-ro spaces
Those ro-ro spaces which are either open at both ends or have an opening at one end, and are provided
with adequate natural ventilation effective over their entire length through permanent openings distributed
in the side plating or deckhead or from above, having a total area of at least 10 % of the total area of the
space sides.
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