TS EN ISO 80000-5
Quantities and units - Part 5: Thermodynamics
This document gives names, symbols, definitions and units for quantities of thermodynamics. Where appropriate, conversion factors are also given.
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- Language: English
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About This Item
TS EN ISO 80000-5 is the thermodynamics part of the Quantities and units series. This standard organises the names, symbols, definitions and units of quantities used in thermodynamics, and it also gives conversion factors where appropriate. Its role is to provide a consistent technical language for quantities that describe heat, temperature, energy, entropy and thermodynamic processes.
A common language for thermodynamic quantities
Thermodynamics deals with energy transfer, the state of matter and the equilibrium behaviour of systems. In this field, clear and consistent definitions matter because the same concept can appear in engineering, physics and measurement practice under different notations. By standardising symbols and units, the document helps ensure that quantities such as pressure, temperature, volume, internal energy and enthalpy are presented in a uniform way. As part of ISO 80000, it places thermodynamic terminology in a mathematical and measurement-oriented framework.
What this part is useful for
- It supports consistency in the names, symbols, definitions and units used for thermodynamic quantities.
- It includes conversion factors where appropriate, which helps when working across different unit systems.
- It is useful in engineering documentation, physics, process design and measurement records.
- It covers the general field of thermodynamics and is not a test standard for a specific device.
- Publication Date: 16.12.2019
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 01.060 Miktarlar ve Birimler ; 17.200.01 Termodinamik (Genel)
- Pages: 28
- Source Standard: EN ISO 80000-5:2019
- International Equivalents: EN ISO 80000-5-EQV; ISO 80000-5-EQV
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