Kalpana Kalpana (Editor)

List of international common standards

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A list of common and basic information standards, that are related by their frequent and widespread use, and which are conventionally used internationally by industry and organizations.


In circumstances and situations there are certain methods and systems that are used as benchmarks, guidelines or protocols for communication, measurement, orientation, reference for information, science, symbols and time. These standards are employed to universally convey meaning, classification and to relate details of information.

The standards listed may be formal or informal and some might not be recognised by all governments or organizations.


  • Braille
  • Diving signals
  • Flag semaphore
  • International Code of Signals
  • International Maritime Signal Flags
  • International Phonetic Alphabet
  • Musical notation
  • In radio communications

  • Call sign
  • Morse code
  • Q code
  • Standard Marine Communication Phrases
  • Ten-code
  • Voice procedure
  • In electronics

  • Binary code
  • Unicode
  • Manufacturing

  • ISO 216 or A4 paper
  • Measurement

  • International System of Units
  • Standard mathematical notation
  • Metric system
  • Numeral system
  • Tally marks
  • Unary numeral system
  • Orientation

  • Arrow (symbol)
  • Cardinal direction, also known as absolute direction
  • Relative direction
  • Science

  • Amino acids (1-letter and 3-letter codes)
  • Electromagnetic spectrum
  • Genome reference
  • Medical classification
  • Periodic table
  • Symbols

  • Chemical symbols
  • Hazard symbol
  • International orange
  • International Symbol of Access
  • No symbol
  • Mathematical symbols
  • Recycling symbol
  • Tick (check mark)
  • Traffic light
  • X mark
  • In electronics

  • Electronic symbols, for circuit diagrams
  • Media control symbols
  • Power symbol
  • Time

  • Calendar
  • Clock
  • Time zones
  • Universal Time
  • References

    List of international common standards Wikipedia

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