Multiple systems of quantities developed across the world over time. Unified systems can facilitate research and communication within the scientific community, doing away with the need for conversion factors.
ISO 80000 comprises a series of international standards introducing the International System of Quantities (ISQ). The guidelines of the ISO 80000 family of standards specify the use of physical quantities and units of measurement, along with the related formulas and units, in scientific and educational documents.
ISO 80000-5 guides you with names, symbols, definitions and units for quantities of thermodynamics. Where appropriate, conversion factors are also provided.
ISO 80000-5 on quantities and units for thermodynamics has applications for education and research in the fields of:
Thermodynamics laws have applications across several industries including food and consumer products. Since uniform quantities and units facilitate research and communication, ISO 80000-5 guides you with quantities and units for topics such as thermodynamic temperature, expansion coefficient, pressure coefficient, compressibility, heat, entropy, enthalpy, energy, Massieu function, Planck function, specific Gibbs function, efficiency, specific gas constant, relative humidity, dew-point temperature etc.
The guidelines of ISO 80000-5 provide you with names, symbols, definitions and units of thermodynamics for research and educational use.
BS EN ISO 80000-5:2019 supersedes ISO 80000‑5:2007. BS EN ISO 80000-5:2019 includes some technical and editorial changes with respect to ISO 80000‑5:2007. These include:
ISO 80000-5
EN ISO 80000-5