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.
International Code of Signals
International Maritime Signal Flags
International Phonetic Alphabet
List of international common standards Wikipedia
In radio communications
Standard Marine Communication Phrases
ISO 216 or A4 paper
International System of Units
Standard mathematical notation
Unary numeral system
Cardinal direction, also known as absolute direction
Amino acids (1-letter and 3-letter codes)
International Symbol of Access
Tick (check mark)
Electronic symbols, for circuit diagrams
Media control symbols