TS EN IEC 80000-13
Quantities and units - Part 13: Information science and technology
IEC 80000-13:2025 specifies names, symbols and definitions for quantities and units used in information science and technology. Where appropriate, conversion factors are also given. Prefixes for binary multiples are also given. International Standard IEC 80000-13 has been prepared by IEC technical committee 25: Quantities and units in close cooperation with ISO/TC 12: Quantities and units. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: addition of new prefixes for binary multiples.
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- Language: English
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About This Item
TS EN IEC 80000-13 is a terminology standard for the names, symbols and definitions of quantities and units used in information science and technology. It supports a common technical language for data-related measurements, storage capacity, transmission rates and related expressions, and it also gives conversion factors where appropriate together with prefixes for binary multiples.
Why the unit vocabulary matters in information technology
In this field, unit expression is not only about notation; it affects how capacities and rates are interpreted and compared. The distinction between SI prefixes and binary-multiple prefixes is especially important when discussing memory size, file size and data quantities. By standardizing the terminology, the document helps align product literature, technical specifications and engineering communication around a shared set of terms.
Edition scope and technical update
IEC 80000-13:2025 is the second edition prepared by IEC Technical Committee 25 in close cooperation with ISO/TC 12, and it cancels and replaces the first edition published in 2008. Its notable technical change is the addition of new prefixes for binary multiples. In other words, this listing provides the current terminological framework for quantities and units in information science and technology, rather than a general rulebook for every engineering discipline.
- Publication Date: 14.07.2025
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 01.040.35 Enformasyon Teknolojisi, Büro Makinaları (Terimler); 01.060 Miktarlar ve Birimler
- Pages: 29
- Source Standard: EN IEC 80000-13:2025
- International Equivalents: EN IEC 80000-13-EQV; IEC 80000-13-EQV
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