2.1 The term grain covers wheat,
maize (corn), oats, rye, barley, rice, pulses, seeds and processed
forms thereof, whose behaviour is similar to that of grain in its
natural state.
2.2 The term filled compartment, trimmed,
refers to any cargo space in which, after loading and trimming as
required under A 10.2, the bulk
grain is at its highest possible level.
2.3 The term filled compartment, untrimmed,
refers to a cargo space which is filled to the maximum extent possible
in way of the hatch opening but which has not been trimmed outside
the periphery of the hatch opening either by the provisions of A 10.3.1 for all ships or A 10.3.2 for specially suitable compartments.
2.4 The term partly filled compartment refers
to any cargo space wherein the bulk grain is not loaded in the manner
prescribed in A 2.2 or A 2.3.
2.5 The term angle of flooding (θ1) means the angle of heel at which openings in the hull, superstructures
or deckhouses, which cannot be closed weathertight, immerse. In applying
this definition, small openings through which progressive flooding
cannot take place need not be considered as open.
2.6 The term stowage factor, for
the purposes of calculating the grain heeling moment caused by a shift
of grain, means the volume per unit weight of the cargo as attested
by the loading facility, i.e. no allowance shall be made for lost
space when the cargo space is nominally filled.
2.7 The term specially suitable compartment refers
to a cargo space which is constructed with at least two vertical or
sloping, longitudinal, grain-tight divisions which are coincident
with the hatch side girders or are so positioned as to limit the effect
of any transverse shift of grain. If sloping, the divisions shall
have an inclination of not less than 30° to the horizontal.