Second Schedule
Oqreqar may
Ordinance by order.
Third 9chedule,
Aunradspent of Schedules.
IN
2
(6) any other units of measurement belonging to the International
System of Units;
(c) such decimal multiples and sub-multiples of the metric units referred to in paragraphs (a) and (b) as may be formed by the use of the prefixes of the International System of Unity specified in the second and third columns of Part IV of the First Schedule and determined, in respect of any particular decimal multiple or sub-multiple of a metric unit by reference to the factor, specified in the first column of that Part, by which such metric unit is multiplied:
(d) the units of measurement in general international use, but not belonging to the International System of Units, which are specified in the second colump of the Second Schedule, į the respective equivalent values whereof, expressed in SI units, being specified or referred to in the fourth column of that Schedule;
"oon-metric units" means all units of measurement other than metric
units.
(2) In this and in any other Ordinance, unless the context otherwise requires
(a) the abbreviation ST stands for the International System of Units:
And
(6) each of the symbols in the third column of the First and Second Schedules stands for the unit or prefix opposite thereto in the second column.
3. (1) The Governor may, by order published in the Gazette, amend any Ordinance for the purpose of replacing references therein to non-metric units by references to metric units which are either equivalent or approximate thereto or which coable the references to bon-metric units to be expressed in convenient metric terms,
(2) In any order made under subsection (1) the Governor may, for the purposes of the Ordinance amended thereby-
(a) prohibit the use of non-metric units after a date specified in
the order;
(B) declare the extent to which, and the period during which, non-
metric units may continue to be used;
(c) provide for exemptions from the use of metric units for such
periods and on such conditions as he may specify;
(d) generally make such incidental provisions as he thinks expedient
to achieve the purposes of this Ordinance,'
(3) For the purposes of subsection (1), the non-metric base unite set out in the second columa of the Third Schedule shall be equivalent to the values expressed in SI base units set out in the third colum thereof.
4. The Govermor may, by order published in the Gazette, amend the First, Second or Third Schedule.
3
FIRST SCHEDULE
THE INTERNATIONAL SYSTEM OF UNITS
PART I
The Sf base units (See Note (9)
Quantity
Name
Symbol
length
metre
111
mass
kilogram
kg
time
second
electric current
ampere
thermody- kelvin Damic
K
temperature
luminous Candela intensity
cd
amount of Bubstance
male
mol
Definition
[2]
the length equivalent to 1 650 763,73 wavelengths in vacuum of the radia- tion corresponding to the transition between the levels 2pro and 5d. of the kryplon-86 atom.
the mass equal to the mass of the international prototype of the kilo- gram kept by the faternational Bureau of Weights and Measures.
the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom.
that constant current which if main- tajned in two straight parallel con- ductors of infinite length, of negligible circular cross section, and placed 1 metre spart in Vacuum, would produce between these conductors a force equal to 2 X 10-7 newton per metre of length.
the fraction 1/273.16 of the thermo- dynamic temperature of the triple point of water.
the luminous intensity, in the per- pendicular direction of A surface of a 1/600000 square metre of a black body at the temperature of freezing platinum under a pressure of 101 323 newtoos per square metre.
the amount of substance of a system which contains as many elementary colitics as there are atoms in 0.012 kilogram of carbon 12.
Note: When the mole ja used, the elementary entities must be specified and may be atoms, molecules, ions, electrons, other particles, or specified groups of such particles.
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