The following definitions shall be applied for the purpose
of this annex:
The letter g means the standard acceleration
of gravity; g equals 9.8 m/s2.
The word load, when used to describe a physical
quantity to which units may be ascribed, signifies mass.
Maximum operating gross mass or Rating or R means the maximum allowable sum of the mass of the container
and its cargo. The letter R is expressed in units of mass. Where the
annexes are based on gravitational forces derived from this value,
that force, which is an inertial force, is indicated as Rg.
Maximum permissible payload or P means the
difference between maximum operating gross mass or rating and tare.
The letter P is expressed in units of mass. Where the
annexes are based on the gravitational forces derived from this value,
that force, which is an inertial force, is indicated as Pg.
Tare means the mass of the empty container,
including permanently affixed ancillary equipment.