ISO 31 - Parts

Parts

The standard comes in 14 parts:

  • ISO 31-0: General principles
  • ISO 31-1: Space and time (replaced by ISO/IEC 80000-3:2007)
  • ISO 31-2: Periodic and related phenomena (replaced by ISO/IEC 80000-3:2007)
  • ISO 31-3: Mechanics (replaced by ISO/IEC 80000-4:2006)
  • ISO 31-4: Heat (replaced by ISO/IEC 80000-5:2007)
  • ISO 31-5: Electricity and magnetism
  • ISO 31-6: Light and related electromagnetic radiations
  • ISO 31-7: Acoustics (replaced by ISO/IEC 80000-8:2007)
  • ISO 31-8: Physical chemistry and molecular physics
  • ISO 31-9: Atomic and nuclear physics
  • ISO 31-10: Nuclear reactions and ionizing radiations
  • ISO 31-11: Mathematical signs and symbols for use in the physical sciences and technology (replaced by ISO 80000-2:2009)
  • ISO 31-12: Characteristic numbers
  • ISO 31-13: Solid state physics

A second international standard on quantities and units was IEC 60027. The ISO 31 and IEC 60027 Standards were revised by the two standardization organizations in collaboration (, ) to integrate both standards into a joint standard ISO/IEC 80000 - Quantities and Units in which the quantities and equations used with SI are to be referred as the International System of Quantities (ISQ). ISO/IEC 80000 supersedes both ISO 31 and part of IEC 60027.

Read more about this topic:  ISO 31

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