1、 IEC 80000-6Edition 1.0 2008-03INTERNATIONAL STANDARD NORME INTERNATIONALEQuantities and units Part 6: Electromagnetism Grandeurs et units Partie 6: Electromagntisme IEC80000-6:2008 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC, Geneva, Switzerland All rights reserved. Unless otherwise
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16、RNATIONAL STANDARD NORME INTERNATIONALEQuantities and units Part 6: Electromagnetism Grandeurs et units Partie 6: Electromagntisme INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE WICS 01.040.29; 17.220.01 PRICE CODECODE PRIXISBN 2-8318-9624-X 2 80000-6 IEC:2008 C
17、ONTENTS FOREWORD.3 0 Introduction 5 0.1 Arrangements of the tables .5 0.2 Tables of quantities .5 0.3 Tables of units.5 0.3.1 General .5 0.3.2 Remark on units for quantities of dimension one, or dimensionless quantities.6 0.4 Numerical statements in this standard .6 0.5 Special remarks 7 0.5.1 Syste
18、m of quantities 7 0.5.2 Sinusoidal quantities .7 1 Scope.9 2 Normative references .9 3 Names, symbols, and definitions 9 Annex A (informative) Units in the Gaussian CGS system with special names .36 Bibliography37 80000-6 IEC:2008 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ QUANTITIES AND UNITS Pa
19、rt 6: Electromagnetism FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning
20、 standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their pre
21、paration is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
22、 with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant
23、subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the techn
24、ical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum exte
25、nt possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for an
26、y equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees
27、 and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8
28、) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rig
29、hts. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 80000-6 has been prepared by IEC technical committee 25: Quantities and units, and their letter symbols in close cooperation with ISO/TC 12, Quantities, units, symbols, conversion factors
30、. This first edition of IEC 80000-6 cancels and replaces the second edition of ISO 31-5, published in 1992, and its amendment 1 (1998). The text of this standard is based on the following documents: FDIS Report on voting 25/370/FDIS 25/376/RVD Full information on the voting for the approval of this
31、standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 4 80000-6 IEC:2008 The committee has decided that the contents of this publication will remain unchanged until the maintenance result date
32、indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 80000 consists of the following parts, under the general title Quantities and unit
33、s: Part 6: Electromagnetism Part 13: Information science and technology Part 14: Telebiometrics related to human physiology The following parts are published by ISO: Part 1: General Part 2: Mathematical signs and symbols to be used in the natural sciences and technology Part 3: Space and time Part 4
34、: Mechanics Part 5: Thermodynamics Part 7: Light Part 8: Acoustics Part 9: Physical chemistry and molecular physics Part 10: Atomic and nuclear physics Part 11: Characteristic numbers Part 12: Solid state physics 80000-6 IEC:2008 5 0 Introduction 0.1 Arrangements of the tables The tables of quantiti
35、es and units in ISO/IEC 80000 are arranged so that the quantities are presented on the left-hand pages and the units on the corresponding right-hand pages. All units between two full lines on the right-hand pages belong to the quantities between the corresponding full lines on the left-hand pages. W
36、here the numbering of an item has been changed in the revision of a part of ISO 31, the number in the preceding edition is shown in parenthesis on the left-hand page under the new number for the quantity; a dash is used to indicate that the item in question did not appear in the preceding edition. 0
37、.2 Tables of quantities The names in English and in French of the most important quantities within the field of this document are given together with their symbols and, in most cases, their definitions. These names and symbols are recommendations. The definitions are given for identification of the
38、quantities in the International System of Quantities (ISQ), listed on the left hand pages of Table 1; they are not intended to be complete. The scalar, vectorial or tensorial character of quantities is pointed out, especially when this is needed for the definitions. In most cases only one name and o
39、nly one symbol for the quantity are given; where two or more names or two or more symbols are given for one quantity and no special distinction is made, they are on an equal footing. When two types of italic letters exist (for example as with and ; and ; a and a; g and g) only one of these is given.
40、 This does not mean that the other is not equally acceptable. It is recommended that such variants should not be given different meanings. A symbol within parenthesis implies that it is a reserve symbol, to be used when, in a particular context, the main symbol is in use with a different meaning. In
41、 this English edition the quantity names in French are printed in an italic font, and are preceded by fr. The gender of the French name is indicated by (m) for masculine and (f) for feminine, immediately after the noun in the French name. 0.3 Tables of units 0.3.1 General The names of units for the
42、corresponding quantities are given together with the international symbols and the definitions. These unit names are language-dependent, but the symbols are international and the same in all languages. For further information, see the SI Brochure (8thedition 2006) from BIPM and ISO 80000-1 (under pr
43、eparation). The units are arranged in the following way: a) The coherent SI units are given first. The SI units have been adopted by the General Conference on Weights and Measures (Confrence Gnrale des Poids et Mesures, CGPM). The use of coherent SI units, and their decimal multiples and submultiple
44、s formed with the SI prefixes are recommended, although the decimal multiples and submultiples are not explicitly mentioned. b) Some non-SI units are then given, being those accepted by the International Committee for Weights and Measures (Comit International des Poids et Mesures, CIPM), or by the I
45、nternational Organization of Legal Metrology (Organisation Internationale de Mtrologie Lgale, OIML), or by ISO and IEC, for use with the SI. 6 80000-6 IEC:2008 Such units are separated from the SI units in the item by use of a broken line between the SI units and the other units. c) Non-SI units cur
46、rently accepted by the CIPM for use with the SI are given in small print (smaller than the text size) in the “Conversion factors and remarks” column. d) Non-SI units that are not recommended are given only in annexes in some parts of ISO/IEC 80000. These annexes are informative, in the first place f
47、or the conversion factors, and are not integral parts of the standard. These deprecated units are arranged in two groups: 1) units in the CGS system with special names; 2) units based on the foot, pound, second, and some other related units. e) Other non-SI units given for information, especially re
48、garding the conversion factors are given in another informative annex. 0.3.2 Remark on units for quantities of dimension one, or dimensionless quantities The coherent unit for any quantity of dimension one, also called a dimensionless quantity, is the number one, symbol 1. When the value of such a q
49、uantity is expressed, the unit symbol 1 is generally not written out explicitly. EXAMPLE Refractive index n = 1,53 1 = 1,53 Prefixes shall not be used to form multiples or submultiples of this unit. Instead of prefixes, powers of 10 are recommended. EXAMPLE Reynolds number Re = 1,32 103Considering that plane angle is generally expressed as the ratio of two lengths and solid angle as the ratio of two
