ISO/IEC 18025:2014
ISO/IEC 18025:2014
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The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site



ISO/IEC 18025:2014 provides mechanisms to specify unambiguously objects used to model environmental concepts. To accomplish this, a collection of nine EDCS dictionaries of environmental concepts are specified:

  1. classifications: specify the type of environmental objects;
  2. attributes: specify the state of environmental objects;
  3. attribute value characteristics: specify information concerning the values of attributes;
  4. attribute enumerants: specify the allowable values for the state of an enumerated attribute;
  5. units: specify quantitative measures of the state of some environmental objects;
  6. unit scales: allow a wide range of numerical values to be stated;
  7. unit equivalence classes: specify sets of units that are mutually comparable;
  8. organizational schemas: useful for locating classifications and attributes sharing a common context; and
  9. groups: into which concepts sharing a common context are collected.

A functional interface is also specified.

As denoting and encoding a concept requires a standard way of identifying the concept, ISO/IEC 18025:2014 specifies labels and codes in the dictionaries.

ISO/IEC 18025:2014 specifies environmental phenomena in categories that include, but are not limited to, the following:

  1. abstract concepts (e.g., absolute latitude accuracy, geodetic azimuth);
  2. airborne particulates and aerosols (e.g., cloud, dust, fog, snow);
  3. animals (e.g., civilian, fish, human, whale pod);
  4. atmosphere and atmospheric conditions (e.g., air temperature, humidity, rain rate, sensible and latent heat, wind speed and direction);
  5. bathymetric physiography (e.g., bar, channel, continental shelf, guyot, reef, seamount, waterbody floor region);
  6. electromagnetic and acoustic phenomena (e.g., acoustic noise, frequency, polarization, sound speed profile, surface reflectivity);
  7. equipment (e.g., aircraft, spacecraft, tent, train, vessel);
  8. extraterrestrial phenomena (e.g., asteroid, comet, planet);
  9. hydrology (e.g., lake, rapids, river, swamp);
  10. ice (e.g., iceberg, ice field, ice peak, ice shelf, glacier);
  11. man-made structures and their interiors (e.g., bridge, building, hallway, road, room, tower);
  12. ocean and littoral surface phenomena (e.g., beach profile, current, surf, tide, wave);
  13. ocean floor (e.g., coral, rock, sand);
  14. oceanographic conditions (e.g., luminescence, salinity, specific gravity, turbidity, water current speed);
  15. physiography (e.g., cliff, gorge, island, mountain, reef, strait, valley region);
  16. space (e.g., charged particle species, ionospheric scintillation, magnetic field, particle density, solar flares);
  17. surface materials (e.g., concrete, metal, paint, soil); and
  18. vegetation (e.g., crop land, forest, grass land, kelp bed, tree).

Общая информация 

Примечание Данный стандарт пересматривается Регистрационный орган

  •  : Опубликовано
     : 2014-02
  •  : 2
  •  : ISO/IEC JTC 1/SC 24 Computer graphics, image processing and environmental data representation
  •  :
    35.140 Computer graphics

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std 1 208 HTML на CD
  • CHF208

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