COVER SHEET TO LYENDMENT 14
\
INTERNATIONAL STANDARDS
UNITS OF MEASUREMENT
TO BE USED IN
AIR AND GROUND OPERATIONS
ANNEX 5
TO THE CONVENTION ON INTERNATIONAL CML AVIATION
FOURTH EDITION - JULY 1979
INTERNATIONAL CIVIL AVIATION ORGANIZATION
Checklist of Amendments
t o Annex 5
Date of
E f f e c t i v e Date A p p l i c a b i l i t y
Amendment 14 (adopted by Council on
27 February 1984) 30 July 1984 22 November 1984
Replacement pages 3, 6, 16, 31,
32 and 33
AMENDMENT 14
t o the
International Standards
UNITS OF MEASUREMENT TO BE USED I N
AIR AND GROUND OPERATIONS
(Annex 5 to the Convention
on International Civil Aviation)
1. I n s e r t the following new and replacement pages i n Annex 5 (Fourth Edition),
t o incorporate Amendment 14 which becomes applicable on 22 November 1984:
a) page 3 Table of Contents
b) page 6 Foreword
c) page 16 International Standards
d) page 31 Attachment C
e) page 32 Attachment D
f ) page 33 Attachment E
Record the entry of t h i s Amendment on page 2.
30 July 1984
TABLEOFCONTENTS
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CHAPTER 1 .-Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
CHAPTER 2.-Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CHAPTER 3.-Standard application of units of measurement . . . 10
CHAPTER 4.-Termination of use of non-SI alternative units. . . 16
ATTACHMENTS TO ANNEX 5
ATTACHMENT A.-Development of the International
System of Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ATTACHMENT B.-Guidance on the application of the SI . . . . . 19
ATTACHMENT C.-Conversion Factors . . . . . . . . . . . . . . . . . . . . . 24
ATTACHMENT D.-Co-ordinated Universal Time. . . . . . . . . . . . . 32
ATTACHMENT E.-Presentation of date and time
in all-numeric form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
ANNEX 5
No. 14
22/11/84
FOREWORD
Historical Background
International Standards and Recommended Practices for
Dimensional Units to be used in Air-Ground Communications
were first adopted by the Council on 16 April
1948 pursuant to Article 37 of the Convention on
International Civil Aviation (Chicago, 1944) and were
designated as Annex 5 to the Convention. They became
effective on 15 September 1948 and became applicable on
1 January 1949.
Table A shows the origin of subsequent amendments
together with a list of the principal subjects involved and the
dates on which the Annex and the amendments were
adopted by the Council, when they became effective and
when they became applicable.
Adion by Contracting States
Not~ficotion ofd~ferences. The attention of Contracting States
is drawn to the obligation imposed by Article 38 of the
Convention by which Contracting States are required to
notify the Organization of any differences between their
national regulations and practices and the International
Standards contained in this Annex and any amendments
thereto. Further, Contracting Stales are invited to keep the
Organization currently informed of any differences which
may subsequently occur, or of the withdrawal of any
differences previously notified. A specific request for
notification of differences will be sent to Contracting States
immediately after the adoption of each amendment to this
Annex.
The attention of Stales is also drawn to the provisions of
Annex 15 related to the publication of differences between
their national regulations and practices and the related ICAO
Standards and Recommended Practices through the
Aeronautical Information Service, in addition to the
obligation of States under Article 38 or the Convention.
Promulgation of information. The establishment and
withdrawal of and changes to facilities, services and
procedures affecting aircraft operations provided in
accordance with the Standards specified in this Annex
should be notified and take effect in accordance with the
provisions of Annex 15.
Status of Annex Con1ponent.i
An Annex is made up of the following component parts, not
all of which, however, are necessarily found in every Annex;
they have the status indicated:
1 . - Mat~riacl omprising the Annex proper:
a) Standards and Recommended Practices adopted by
the Council under the provisions of the Convention.
They are defined as follows:
Standard: Any specification for physical characteristics,
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