What is "ISO/IEC 80000 - Quantities and Units"?

"ISO 80000 - Quantities and Units" is an international standard describing the International System of Quantities (ISQ). It acts as a style guide for physical quantities, units of measurement, symbols, and mathematical formulas in science and engineering.

ISO 80000 is divided into 13 parts:

• "ISO 80000-1 - General" - Style guide for quantities, dimensions, and SI units. See the PDF version for details.
• "ISO 80000-2 - Mathematics" - Style guide for mathematical quantities and operations. See the image version for details.
• "ISO 80000-3 - Space and Time" - Style guide for space and time quantities. See the preview version for details.
• "ISO 80000-4 - Mechanics" - Style guide for mechanical quantities.
• "ISO 80000-5 - Thermodynamics" - Style guide for thermodynamical quantities.
• "ISO 80000-6 - Electromagnetism" - Style guide for quantities related to electromagnetism.
• "ISO 80000-7 - Light and Radiation" - Style guide for quantities related to light and optical radiations.
• "ISO 80000-8 - Acoustics" - Style guide for quantities related to acoustics.
• "ISO 80000-9 - Physical Chemistry and Molecular Physics" - Style guide for quantities related to physical chemistry and molecular physics.
• "ISO 80000-10 - Atomic and Nuclear Physics" - Style guide for quantities related to atomic and nuclear physics.
• "ISO 80000-11 - Characteristic Numbers" - Style guide for dimensionless quantities (characteristic numbers).
• "ISO 80000-12 - Condensed Matter Physics" - Style guide for quantities related to condensed matter physics.
• "ISO 80000-13 - Information Science and Technology" - Style guide for quantities related to information science and technology.

⇒ International System of Quantities (ISQ)

⇐ ISO/IEC 80000 - Quantities and units

⇑ ISO/IEC 80000 - Quantities and units

⇑⇑ MathML (Mathematical Markup Language)