BS EN ISO 80000-1:2022-TC:2023 Edition
$165.64
Tracked Changes. Quantities and units – General
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 90 |
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 |
|---|---|
| 1 | compares BS EN ISO 80000-1:2022 |
| 2 | TRACKED CHANGES Text example 1 — indicates added text (in green) |
| 5 | ForewordEuropean foreword |
| 7 | Foreword |
| 9 | Introduction 0.1 Quantities |
| 10 | 0.2 Units 0.3 Realizing the values of units 0.4 Arrangement of the tables |
| 11 | 3.1 quantity |
| 12 | 3.2 kind of quantity |
| 13 | 3.3 system of quantities 3.4 base quantity 3.5 derived quantity 3.6 International System of Quantities ISQ 3.7 quantity dimension dimension of a quantity dimension |
| 14 | 3.8 quantity of dimension one dimensionless quantity |
| 15 | 3.9 unit of measurement measurement unit unit 3.10 base unit |
| 16 | 3.11 derived unit 3.12 coherent derived unit 3.13 system of units 3.14 coherent system of units |
| 17 | 3.15 off-system measurement unit off-system unit 3.16 International System of Units SI 3.17 multiple of a unit |
| 18 | 3.18 submultiple of a unit 3.19 quantity value value of a quantity value |
| 19 | 3.20 numerical quantity value numerical value of a quantity numerical value 3.21 quantity calculus 3.22 quantity equation |
| 20 | 3.23 unit equation 3.24 conversion factor between units 3.25 numerical value equation numerical quantity value equation 3.26 ordinal quantity |
| 21 | 3.27 quantity-value scale measurement scale 3.28 ordinal quantity-value scale ordinal value scale 3.29 conventional reference scale 3.30 nominal property |
| 22 | 4.1 The concept of quantity 4.2 Kind of quantity ─ Quantity calculus |
| 23 | 4.34.2 System of quantities ─ Base quantities and derived quantities A set of quantities and their relations are called a system of quantities. General Quantitiesquantities are related through equations that express laws of nature or define new general quantities. Each equation between quantities is called a quantity e… It is convenient to consider some quantities of different kinds as mutually independent. Such quantities are called base quantities. Other quantities, called derived quantities, are defined or expressed in terms of base quantities by means of equations. It is a matter of choice how many and which quantities are considered to be base quantities. It is also a matter of choice which equations are used to define the derived quantities. Each set of non-contradictory equations between quantities is called … 4.44.3 Universal constants and empirical constants 4.54.4 Constant multipliers in quantity equations |
| 24 | 4.64.5 International System of Quantities, ISQ |
| 25 | 6.1 General 6.16.2 Units and numerical values |
| 26 | 6.26.3 Mathematical operations |
| 27 | 6.36.4 Quantity equations and numerical value equations |
| 28 | 6.46.5 Coherent systems of units 6.5 The International System of Units, SI 6.5.1 General 6.5.2 SI base units Table 1 — SI base units for the ISQ base quantities |
| 29 | 6.5.3 SI derived units |
| 30 | Table 2 — SI derived units with special names and symbols Table 3 — SI derived units with special names and symbols admitted for reasons of safeguarding human health |
| 31 | 6.5.4 SI prefixes Table 4 — SI prefixes |
| 32 | 6.5.5 The unit one |
| 33 | 6.5.6 Other units Table 5 — Units used with the SI |
| 34 | Table 6 — Units used with the SI, whose values in SI units are obtained experimentally 7.1 Symbols for quantities 7.1.1 General |
| 35 | 7.1.2 Subscripts 7.1.3 Combination of symbols for quantities |
| 37 | 7.1.4 Expressions for quantities 7.1.5 Expressions for dimensions |
| 38 | 7.2 Names and symbols for units 7.2.1 General 7.2.2 Combination of symbols for units A compound unit formed by multiplication of two or more units shall be indicated in one of the following ways: |
| 39 | 7.2.3 Prefixes 7.2.4 English names of compound units 7.2.5 Spelling of names of quantities and of units in the English and French languages 7.37.2 Numbers 7.3.17.2.1 General |
| 40 | 7.3.27.2.2 Decimal sign |
| 41 | 7.3.37.2.3 Multiplication and division |
| 42 | 7.3.47.2.4 Error and uncertainty |
| 43 | 7.47.3 Chemical elements and nuclides |
| 44 | 7.57.4 Greek alphabet |
| 56 | Bibliography |
| 60 | National foreword |
| 62 | European foreword Endorsement notice |
| 64 | Foreword |
| 65 | Introduction |
| 67 | 1 Scope 2 Normative references 3 Terms and definitions 4 Quantities 4.1 The concept of quantity |
| 68 | 4.2 System of quantities ─ Base quantities and derived quantities 4.3 Universal constants and empirical constants |
| 69 | 4.4 Constant multipliers in quantity equations 4.5 International System of Quantities, ISQ 5 Dimensions |
| 71 | 6 Units 6.1 General 6.2 Units and numerical values 6.3 Mathematical operations |
| 72 | 6.4 Quantity equations and numerical value equations |
| 73 | 6.5 Coherent systems of units 7 Printing rules 7.1 Symbols for quantities 7.1.1 General 7.1.2 Subscripts |
| 74 | 7.1.3 Combination of symbols for quantities |
| 75 | 7.1.4 Expressions for quantities |
| 76 | 7.1.5 Expressions for dimensions 7.2 Numbers 7.2.1 General 7.2.2 Decimal sign |
| 77 | 7.2.3 Multiplication and division |
| 78 | 7.2.4 Error and uncertainty |
| 79 | 7.3 Chemical elements and nuclides |
| 80 | 7.4 Greek alphabet |
| 81 | Annex A (normative) Specific terms used for quantities |
| 85 | Annex B (normative) Rounding of numbers |
| 88 | Bibliography |
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