BS-5775-10-1993 ISO-31-10-1992.pdf
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1、BRITISH STANDARD BS 5775-10: 1993 ISO 31-10: 1992 Specification for Quantities, units and symbols Part 10: Nuclear reactions and ionizing radiations UDC 389.15/.16:539.16/.17:006.72 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 09:59:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5775-10:
2、1993 This British Standard, having been prepared under the direction of the Systems Department Steering Committee, was published under the authority of the Standards Board and comes into effect on 15 March 1993 BSI 07-1999 First published September 1982 Second edition March 1993 The following BSI re
3、ferences relate to the work on this standard: Committee reference S/1 Draft for comment 90/55633 DC ISBN 0 580 22003 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Systems Department Steering Committee (S/-) to Technical Committee S/1
4、, upon which the following bodies were represented: Chartered Institution of Building Services Engineers Department of Trade and Industry (National Physical Laboratory) Department of Trade and Industry (National Weights and Measures Laboratory) EEA (The Association of Electronics, Telecommunications
5、 and Business Equipment Industries) Institute of Physics Institute of Trading Standards Administration Institution of Chemical Engineers Institution of Electrical Engineers Institution of Mechanical Engineers Institution of Structural Engineers Royal Society Royal Society of Chemistry Schools Mathem
6、atics Project Society of Chemical Industry Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 09:59:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5775-10:1993 BSI 07-1999i Contents Page Committees responsibleInside front cover National
7、forewordii Introduction1 1Scope2 2Normative references2 3Names and symbols2 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 09:59:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5775-10:1993 ii BSI 07-1999 National foreword This Part of BS 5775 has been pr
8、epared under the direction of the Systems Department Steering Committee. It is identical with ISO 31-10:1992 Quantities and units Part 10: Nuclear reactions and ionizing radiations, published by the International Organization for Standardization (ISO). ISO 31-10 was prepared by Technical Committee I
9、SO/TC 12 “Quantities, units, symbols, conversion factors” with the active participation and approval of the UK. This Part of BS 5775 supersedes BS 5775-10:1982, which is withdrawn. The principal changes made in this revised version are as follows: a) the decision by the International Committee for W
10、eights and Measures (Comit International des Poids et Mesures, CIPM) in 1980 concerning the status of supplementary units has been incorporated; b) units in use temporarily have been transferred to the “Conversion factors and remarks” column; c) the annex has been deleted. BS 5775 comprises the foll
11、owing Parts, each of which is identical with the corresponding Part of ISO 31. Part 0: General principles; Part 1: Space and time; Part 2: Periodic and related phenomena; Part 3: Mechanics; Part 4: Heat; Part 5: Electricity and magnetism; Part 6: Light and related electromagnetic radiations; Part 7:
12、 Acoustics; Part 8: Physical chemistry and molecular physics; Part 9: Atomic and nuclear physics; Part 10: Nuclear reactions and ionizing radiations; Part 11: Mathematical signs and symbols for use in the physical sciences and technology; Part 12: Characteristic numbers; Part 13: Solid state physics
13、. Cross references International standardCorresponding British Standard ISO 31-6:1992 BS 5775 Specification for quantities, units and symbols Part 6:1993 Light and related electromagnetic radiations (Identical) ISO 31-9:1992Part 9:1993 Atomic and nuclear physics (Identical) Licensed Copy: sheffieldu
14、n sheffieldun, na, Fri Dec 01 09:59:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5775-10:1993 BSI 07-1999iii A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Brit
15、ish Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 26, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments
16、incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 09:59:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 09:59:41 GMT+00:00 2006, Uncontrolled Copy
17、, (c) BSI ISO 31-10:1992(E) BSI 07-19991 Introduction 0.1 Arrangement of the tables The tables of quantities and units in ISO 31 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 belong to th
18、e quantities between the corresponding full lines on the left-hand pages. Where 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 parentheses on the left-hand page under the new number for the quantity; a dash is used to in
19、dicate that the item in question did not appear in the preceding edition. 0.2 Tables of quantities The most important quantities within the field of this document are given together with their symbols and, in most cases, definitions. These definitions are given merely for identification; they are no
20、t intended to be complete. The vectorial character of some quantities is pointed out, especially when this is needed for the definitions, but no attempt is made to be complete or consistent. In most cases only one name and only one symbol for the quantity are given; where two or more names or two or
21、 more symbols are given for one quantity and no special distinction is made, they are on an equal footing. When two types of italic (sloping) letter exist (for example as with H, , , , g, g) only one of these is given. This does not mean that the other is not equally acceptable. In general it is rec
22、ommended that such variants should not be given different meanings. A symbol within parentheses 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. 0.3 Tables of units 0.3.1 General Units for the corresponding quantitie
23、s are given together with the international symbols and the definitions. For further information, see ISO 31-0. The units are arranged in the following way: a) The names of the SI units are given in large print (larger than text size). The SI units have been adopted by the General Conference on Weig
24、hts and Measures (Conference Gnrale des Poids et Mesures, CGPM). The SI units and their decimal multiples and sub-multiples are recommended, although the decimal multiples and sub-multiples are not explicitly mentioned. b) The names of non-SI units which may be used together with SI units because of
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