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BS EN ISO 80000-1:2022

$134.27

Quantities and units – General

Published By Publication Date Number of Pages
BSI 2022 34
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This document gives general information and definitions concerning quantities, systems of quantities, units, quantity and unit symbols, and coherent unit systems, especially the International System of Quantities (ISQ). The principles laid down in this document are intended for general use within the various fields of science and technology, and as an introduction to other parts of this International Standard. The ISO/IEC 80000 series does not, as yet, cover ordinal quantities and nominal properties.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Quantities
4.1 The concept of quantity
10 4.2 System of quantities ─ Base quantities and derived quantities
4.3 Universal constants and empirical constants
11 4.4 Constant multipliers in quantity equations
4.5 International System of Quantities, ISQ
5 Dimensions
13 6 Units
6.1 General
6.2 Units and numerical values
6.3 Mathematical operations
14 6.4 Quantity equations and numerical value equations
15 6.5 Coherent systems of units
7 Printing rules
7.1 Symbols for quantities
7.1.1 General
7.1.2 Subscripts
16 7.1.3 Combination of symbols for quantities
17 7.1.4 Expressions for quantities
18 7.1.5 Expressions for dimensions
7.2 Numbers
7.2.1 General
7.2.2 Decimal sign
19 7.2.3 Multiplication and division
20 7.2.4 Error and uncertainty
21 7.3 Chemical elements and nuclides
22 7.4 Greek alphabet
23 Annex A (normative) Specific terms used for quantities
27 Annex B (normative) Rounding of numbers
30 Bibliography
BS EN ISO 80000-1:2022
$134.27