3 Terms, definitions, symbols and abbreviated terms | 3.1.1 Table of contents | 3.3 Abbreviated terms |
3.1 Introduction | 3.2 Terms and definitions |
Table 3.1 — Table of contents | Table 3.2 — Table of tables | Table 3.3 — Abbreviated terms |
For the purposes of this document, the following terms and definitions apply:
3.2.1
attribute
one of the data types whose instances provide values that taken together specify
the state of an environmental object
3.2.2
base quantity
quantity in a conventionally chosen
subset of a given system of quantities,
where no quantity in the subset can
be expressed in terms of the other
quantities within that subset
[ISO 80000-1:2009, 3.4]
NOTE 1 The subset mentioned in the definition is termed the "set of base quantities".
NOTE 2 Base quantities are referred to as being mutually independent since a base quantity cannot be expressed as a product of powers of the other base quantities.
NOTE 3 'Number of entities' can be regarded as a base quantity in any system of quantities.
3.2.3
base unit
measurement unit that is adopted by convention
for a base quantity
[ISO 80000-1:2009, 3.10]
NOTE 1 In each coherent system of units, there is only one base unit for each base quantity.
EXAMPLE 1 In the SI, the metre is the base unit of length. In the CGS systems, the centimetre is the base unit of length.
NOTE 2 A base unit may also serve for a derived quantity of the same quantity dimension.
EXAMPLE 2 The derived quantity rainfall, when defined as areic volume (volume per area), has the metre as a coherent derived unit in the SI.
NOTE 3 For number of entities, the number one, symbol 1, can be regarded as a base unit in any system of units.
3.2.4
Basic Latin character
character from U+0020 to U+007E
[ISO/IEC 10646:2012]
3.2.5
Basic Latin string
string consisting of Basic Latin characters
3.2.6
classification
information defining the type of an object
3.2.7
code
compact and not necessarily human-understandable designator that is used to denote a concept
3.2.8
coherent derived unit
derived unit that,
for a given system of quantities and for a
chosen set of base units,
is a product of powers of base units with no other
proportionality factor than one
[ISO 80000-1:2009, 3.12]
NOTE 1 A power of a base unit is the base unit raised to an exponent.
NOTE 2 Coherence can be determined only with respect to a particular system of quantities and a given set of base units.
EXAMPLE If the metre, the second, and the mole are base units, the metre per second is the coherent derived unit of velocity when velocity is defined by the quantity equation v = dr/dt and the mole per cubic metre is the coherent derived unit of amount-of-substance concentration when amount-of-substance concentration is defined by the quantity equation c = n/V. The kilometre per hour and the knot are not coherent derived units in such a system of quantities.
NOTE 3 The coherent derived unit for every derived quantity of dimension one in a given system of units is the number one, symbol 1. The name and symbol of the measurement unit one are generally not indicated.
3.2.9
coherent system of units
system of units, based on a given
system of quantities, in which the
measurement unit for each
derived quantity is a
coherent derived unit
[ISO 80000-1:2009, 3.14]
EXAMPLE Set of coherent SI units and relations between them.
NOTE A system of units can be coherent only with respect to a system of quantities and the adopted base units.
3.2.10
derived quantity
quantity, in a
system of quantities,
defined in terms of the base quantities
of that system
[ISO 80000-1:2009, 3.5]
EXAMPLE In a system of quantities having the base quantities length and mass, mass density is a derived quantity defined as the quotient of mass and volume (length to the power three).
3.2.11
derived unit
measurement unit for a
derived quantity
[ISO 80000-1:2009, 3.6]
3.2.12
EDCS dictionary
set of entries of a similar nature each of which specifies a concept
and includes a code, a label,
and a concept definition as well as other concept-dependent information
3.2.13
enumerant
one of the possible values of an enumerated data type
[ECS]
3.2.14
environment
set of physical circumstances and/or conditions, including both
natural and man-made phenomena
3.2.15
equivalent units
set of units of measurement
that characterize the same physical quantity
3.2.16
group
one of the set of concepts that are members of
an organizational schema
3.2.17
International System of Quantities
ISQ
system of quantities based on
the seven base quantities: length,
mass, time, electric current, thermodynamic temperature,
amount of substance, and luminous intensity
[ISO 80000-1:2009, 3.6]
NOTE 1 This system of quantities is published in the ISO 80000 and IEC 80000 series Quantities and units, Parts 3 to 14.
NOTE 2 The International System of Units (SI) (see [ISO 80000-1:2009, item 3.16]) is based on the ISQ.
3.2.18
International System of Units
SI
system of units, based on the
International System of Quantities,
their names and symbols, including a series of prefixes
and their names and symbols, together with rules for their use,
adopted by the General Conference on Weights and Measures (CGPM)
[ISO 80000-1:2009, 3.16]
NOTE 1 The SI is founded on the seven base quantities of the ISQ and the names and symbols of the corresponding base units, see [ISO 80000-1:2009, 6.5.2].
NOTE 2 The base units and the coherent derived units of the SI form a coherent set, designated the "set of coherent SI units".
NOTE 3 In quantity calculus, the quantity 'number of entities' is often considered to be a base quantity, with the base unit one, symbol 1.
3.2.19
label
human-understandable designator that is used to denote a concept
3.2.20
numerical value
a real number that represents a
quantity
3.2.21
object
conceptual structure having both type
and state
3.2.22
organizational schema
end result of a process of concept characterization, comprised of a set of
groups of concepts
3.2.23
physical quantity
quantity
that can be used in the mathematical equations of science and technology
3.2.24
quantity
property of a phenomenon, body, or substance, where the property has a
magnitude that can be expressed by means of a number and a reference
[ISO 80000-1:2009, 3.1]
3.2.25
state (of an object)
one of the possible modes of existence of an object
as defined by the collective values of its attributes
3.2.26
symbol
short, scientific notation for a
unit of measurement or a scale factor or both
3.2.27
system of quantities
set of quantities together with a
set of non-contradictory equations relating those
quantities
[ISO 80000-1:2009, 3.3]
NOTE Ordinal quantities (see [ISO 80000-1:2009, 3.26]), such as Rockwell C hardness, and nominal properties (see [ISO 80000-1:2009, 3.30]), such as colour of light, are usually not considered to be part of a system of quantities because they are related to other quantities through empirical relations only.
3.2.28
system of units
set of base units and
derived units, together with their multiples and
submultiples, defined in accordance with given rules, for a given
system of quantities
[ISO 80000-1:2009, 3.13]
3.2.29
type (of an object)
essential aspects of an object that characterize
and distinguish it from other objects
3.2.30
unit of measurement
measurement unit
unit
real scalar quantity, defined and
adopted by convention, with which any other
quantity of the same kind can be
compared to express the ratio of the second
quantity to the first one as a
number
[ISO 80000-1:2009, 3.9]
3.2.31
value (of a physical quantity)
quantitative expression of a particular
physical quantity as the pairing of a
real number and a unit of measurement, the
real number being called its numerical value
Table 3.3 lists the abbreviated terms used in this International Standard except for those abbreviated terms used only in the construction of labels, which are listed in Annex G. In the specification of an abbreviation, the letters in the abbreviated term used to form the abbreviation are presented in upper-case and other letters are presented in lower-case with one exception. When the abbreviated term includes another abbreviation that is is used to form the abbreviation for that term, all the letters of the included abbreviation are presented in upper-case even if all of the letters are not used in the formed abbreviation.
Abbreviation | Abbreviated term |
---|---|
ABS | Acrylonitrile Butadiene Styrene |
ACC | Area Control Centre |
ACS | Airfield Control Station |
ADRG | ARC Digitized Raster Graphic |
AGL | Above Ground Level |
ALP | Articulated Loading Platform |
ANDES | Ambient Noise Directionality Estimation System |
APAP | Approach Path Alignment Panel |
API | Application Program Interface |
AR | Authoritative Reference |
ARC | equal Arc-second Raster Chart |
ARCP | Air Refueling Control Point |
ARIP | Air Refueling Initial Point |
ARTCC | Air Route Traffic Control Centre |
ASAPS | Advanced Surveillance Acoustic Prediction System |
ASEPS | Automated Signal Excess Prediction System |
ASNM | Arctic Storm Noise Model |
ASPM | Acoustic System Performance Model |
ASTRAL | ASEPS TRAnsmission Loss |
ASW | Anti-Submarine Warfare |
ATC | Air Traffic Control |
ATS | Air Traffic Service |
ATZ | Air Traffic Zone |
AVLB | Armoured Vehicle Launched Bridge |
BOMIS | BOttom-Mounted Instrumentation System |
BRDF | Bidirectional Reflectance Distribution Function |
CADIZ | Canadian Air Defense Identification Zone |
CASS | Comprehensive Acoustic Sonar Simulation |
CAVOK | Ceiling And Visibility O.K. |
CCA | Continental Control Area |
CCTT | Close Combat Tactical Trainer |
CH | Clay, High-plasticity |
CL | Clay, Low-plasticity |
COLREGS | international REGulationS for avoiding COLlisions at sea |
COMNAVFE | COMmander, NAVal forces Far East |
COMNAVPAC | COMmander, NAVal forces PACific |
CONUS | CONtinental United States |
CTA | ConTrol Area |
CZ | Control Zone |
DAFIF | Digital Aeronautical Flight Information File |
DANES | Directional Ambient Noise Estimation System |
DEW | Distant Early Warning |
DEWIZ | Distant Early Warning Identification Zone |
DEWMIZ | Distant Early Warning Military Identification Zone |
DMA | Defense Mapping Agency |
DME | Distance Measuring Equipment |
DND | Department of National Defence |
EA | EDCS Attribute |
EAC | EDCS Attribute Code |
EAL | EDCS Attribute Label |
EC | EDCS Classification |
ECC | EDCS Classification Code |
ECL | EDCS Classification Label |
EDCS | Environmental Data Coding Specification |
EE | EDCS attribute Enumeration |
EEC | EDCS attribute Enumeration Code |
EEL | EDCS attribute Enumeration Label |
EG | EDCS Group |
EGC | EDCS Group Code |
EGL | EDCS Group Label |
EHF | Extremely High Frequency |
ELF | Extremely Low Frequency |
EO | EDCS Organizational schema |
EOC | EDCS Organizational schema Code |
EOL | EDCS Organizational schema Label |
EQ | EDCS unit eQuivalence class |
EQC | EDCS unit eQuivalence class Code |
EQL | EDCS unit eQuivalence class Label |
ES | EDCS unit Scale |
ESC | EDCS unit Scale Code |
ESL | EDCS unit Scale Label |
ETRS | European Terrestrial Reference System |
EU | EDCS Unit |
EUC | EDCS Unit Code |
EUL | EDCS Unit Label |
EV | EDCS attribute Value characteristic |
EVC | EDCS attribute Value characteristic Code |
EVL | EDCS attribute Value characteristic Label |
FAA | Federal Aviation Administration (US) |
FANM | Fast Ambient Noise Model |
FEPE | Finite Element Parabolic Equation |
FIC | Flight Information Centre |
FIPS | Federal Information Processing Standards |
FM | Fan Marker |
FORACS | Fleet Operational Readiness Accuracy Check Site |
FSS | Flight Service Station |
GC | Gravely Clays |
GCA | Ground Controlled Approach |
GCI | Ground Controlled Intercept |
GM | Gravel Mixture |
GP | Gravels, Poorly-graded |
GPS | Global Positioning System |
GRAB | Gaussian RAy Bundle |
GSE | Geocentric Solar Ecliptic |
GTRS | GeoTile Reference System |
GW | Gravels, Well-graded |
HF | High Frequency |
HTML | HyperText Markup Language |
HVAC | Heating, Ventilation, and Air Conditioning |
IALA | International Association of Lighthouse Authorities |
ICAO | International Civil Aviation Organization |
ICW | IntraCoastal Waterway |
IDZ | IDentification Zone |
IEC | International Electrotechnical Commission |
IEEE | Institute of Electrical and Electronics Engineers |
IFR | Instrument Flight Rules |
IHO | International Hydrographic Organization |
ILS | Instrument Landing System |
IMO | International Maritime Organization |
INR | INformation Region |
INS | Inertial Navigation System |
INZ | INformation Zone |
IR | Informative Reference |
ISO | (this is the short name for the International Organization for Standardization) |
JMCDM | Joint METOC Conceptual Data Model |
JPEG | Joint Photographic Experts Group |
JTC | Joint Technical Committee |
L/MF | Low/Medium Frequency |
LANDSAT | LAND SATellite |
LCAC | Landing Craft Air Cushion |
LF | Low Frequency |
LORAN | LOng-RAnge Navigation |
MAD | Magnetic Anomaly Detector |
MALSF | Medium intensity Approach Light system with Sequenced Flashers |
MALSR | Medium intensity Approach Light System with Runway alignment indicator lights |
MATZ | Military Air Traffic Zone |
MCAC | Military Common Area Control |
METOC | METeorology and OCeanography |
MF | Medium Frequency |
MH | Micaceous silts, High-plasticity |
MIR | Mid InfraRed |
ML | Micaceous silts, Low-plasticity |
MLC | Military Load Classification |
ML-CL | Micaceous silts, Low-plasticity; Clays, Low-plasticity |
MLS | Microwave Landing System |
MSL | Mean Sea Level |
NATO | North Atlantic Treaty Organization |
NDB | Non-Directional Beacon |
NGA | National Geospatial-intelligence Agency |
NIMA | National Imagery and Mapping Agency |
NIR | Near InfraRed |
OCA | Oceanic Control Area |
ODALS | OmniDirectional Approach Lighting System |
ODAS | Ocean Data Acquisition System |
OH | Organic clays, High-plasticity |
OIS | Obstruction Identification Surface |
OKTA | (corruption of octal, meaning one-eighth) |
OL | Organic clays, Low-plasticity |
OMEGA | Optimized Method for Estimated Guidance Accuracy (VLF navigation system) |
ONC | Operational Navigational Chart |
PAPI | Precision Approach Path Indicator |
PAR | Precision Approach Radar |
PEM | Porous European Mix |
PMP | Pomtommo Mostovoj Park |
PNG | Portable Network Graphics |
POL | Petroleum, Oils, and Lubricants |
PR | Prescriptive Reference |
PT | PeaT (highly organic) |
PVASI | Pulsating Visual Approach Slope Indicator |
PVC | PolyVinyl Chloride |
QNH | atmospheric pressure (Q) at Nautical Height (aviation) |
QTG | The Q code (a standardized collection of three-letter codes for radiotelegraph communication, usually in question/answer form) for 'Will you send two dashes of 10 seconds each followed by your call sign? I am going to send two dashes of 10 seconds each followed by my call sign.' |
RACON | RAdar transponder beaCON |
RAIL | Runway Alignment Indicator Lights |
RAM | Range-dependent Acoustic Model |
RANDI | Research Ambient Noise DIrectionality |
RCI | Rating Cone Index |
RCN | Royal Canadian Navy |
REIL | Runway End Identifier Lights |
RF | Radio Frequency |
RGB | Red Green Blue (colour model) |
RMS | Root-Mean-Square |
RPM | Revolutions Per Minute |
SC | Sandy Clays |
SHF | Super High Frequency |
SI | Système International d'unités (International System of Units) |
SIGNI | signs and SIGNals on Inland waterways |
SLF | Super Low Frequency |
SM | Sandy Mixture |
SOED | Shorter Oxford English Dictionary |
SP | Sandy, Poorly-graded |
SPOT | Satellite Pour l'Observation de la Terre |
SRA | Special Rules Area |
SRZ | Special Rules Zone |
SSALF | Simplified Short Approach Lighting system with sequenced Flashing lights |
SSN | SunSpot Number |
STOL | Short Take-Off and Landing |
SUA | Special Use Airspace |
SW | Sandy, Well-graded |
TACAN | TACtical Air Navigation |
TAPPS | Towed Array Performance Prediction System |
TEL | Transporter-Erector-Launcher |
TNT | TriNitroToluene |
TRCV | TRi-Colour VASI |
TSS | Traffic Separation Scheme |
TUTT | Twin Unit Tractor Tug |
TVASI | T-VASI |
TZ | Traffic Zone |
UHF | Ultra High Frequency |
UK | United Kingdom |
ULF | Ultra Low Frequency |
UN | United Nations |
US | United States of america |
USCS | Unified Soil Classification System |
USGS | United States Geodetic Survey |
USS | United States Ship |
USSR | Union of Soviet Socialist Republics |
USWMS | Uniform State Waterway Marking System |
UVA | UltraViolet A |
UVB | UltraViolet B |
UVC | UltraViolet C |
VASI | Visual Approach Slope Indicator |
VF | Voice Frequency |
VFR | Visual Flight Rules |
VHF | Very High Frequency |
VLF | Very Low Frequency |
VOR | VHF Omnidirectional Range station |
VORTAC | VOR and TACAN |
VSTOL | Vertical and Short Take-Off and Landing |
VTOL | Vertical Take-Off and Landing |
WGS | World Geodetic System |
WMO | World Meteorological Organization |
WW | World War |
http://standards.iso.org/ittf/PubliclyAvailableStandards/index.html