BS ISO 8999-2008 Reciprocating internal combustion engines - Graphical symbols《往复式内燃机 图形符号》.pdf
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1、BRITISH STANDARD BS ISO 8999:2001 Reciprocating internal combustion engines Graphical symbols ICS 01.080.20; 27.020 BS ISO 8999:2001 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2008 BSI 2008 ISBN 978 0 580 61883 3 National for
2、eword This British Standard is the UK implementation of ISO 8999:2001. The UK participation in its preparation was entrusted to Technical Committee MCE/14, RIC engines. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purpor
3、t to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication Date CommentsReference number ISO 8999:2001(E) INTERNATIONAL ST
4、ANDARD ISO 8999 Second edition 2001-03-01 Reciprocating internal combustion engines Graphical symbols Moteurs alternatifs combustion interne Symboles graphiques BS ISO 8999:2001iiiii Contents Page Foreword.iv 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4 Use of symbols 1 5 Basic sy
5、mbols3 6 Safety signs7 7 Engine symbols .8 Bibliography14 BS ISO 8999:2001iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO
6、 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates cl
7、osely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulate
8、d to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be hel
9、d responsible for identifying any or all such patent rights. International Standard ISO 8999 was prepared by Technical Committee ISO/TC 70, Internal combustion engines. This second edition cancels and replaces the first edition (ISO 8999:1993), which has been technically revised. BS ISO 8999:20011 R
10、eciprocating internal combustion engines Graphical symbols 1 Scope This International Standard specifies graphical symbols for operator controls, gauges, tell-tale indicators and instructions for reciprocating internal combustion (RIC) engines in order to provide necessary information on their use a
11、nd operation. It is applicable to RIC engines for land, rail traction and marine use, excluding engines used to propel road vehicles and aircraft. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this Internat
12、ional Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents i
13、ndicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 3461-1:1988, General principles for the creation of graphical symbols Part 1: Graphical symbols for use
14、on equipment. ISO 3864:1984, Safety colours and safety signs. IEC 60073:1996, Basic and safety principles for man-machine interface, marking and identification Coding principles for indication devices and actuators. 3 Terms and definitions For the purposes of this International Standard, the followi
15、ng terms and definitions apply. 3.1 basic graphical symbol symbol used individually or in combination to make a composite symbol 3.2 composite symbol symbol made from combinations of symbol elements 4 Use of symbols 4.1 Symbols shall be as shown in clauses 5 to 7 of this International Standard. In g
16、eneral, symbols are shown in outline form. Where necessary, for legibility when reduced to a small size, enclosed areas within symbols or symbol elements may be filled in. BS ISO 8999:20012 4.2 The symbols included in clause 5 are basic symbols which may be used for general application as well as to
17、 create composite symbols. 4.3 The composite symbols included in clauses 6 and 7 are developed using basic symbols from clause 5 as elements where applicable to provide families of symbols associated with functions and systems. 4.4 As required, additional composite symbols may be developed using the
18、 basic symbols from clause 5, provided that the characteristics specified in ISO 3461-1 be maintained. 4.5 Limitations inherent in some reproduction and display technologies may require increased line thickness or other minor modifications of symbols. Such modifications are acceptable provided the s
19、ymbol remain unchanged in its basic graphical elements and remain easily discernible by the operator. 4.6 Additionally, to improve the appearance and perceptibility of a graphical symbol or to coordinate with the design of the equipment to which it is applied, it may be necessary to change the line
20、thickness or to round off the corners of the symbol. The graphical designer is normally free to make such changes provided that the essential perceptual characteristics of the symbol be maintained. See 10.2 of ISO 3461-1:1988. 4.7 For actual use, all symbols shall be reproduced large enough to be ea
21、sily discernible by the operator. See ISO 3461-1 for guidelines for proper sizing of symbols. Symbols shall be used in the orientations shown in this International Standard unless otherwise noted for individual symbols. 4.8 Symbols on controls and displays shall have good contrast to their backgroun
22、d. A light symbol on a dark background is preferred for most controls. Displays may use either a light symbol on a dark background or a dark symbol on a light background, depending upon which alternative provides the best visual perception. When a symbol image is reversed (for example, black to whit
23、e and vice versa) it shall be done for the entire symbol. 4.9 When using symbols with multifunction controls, understanding is improved and the presentation simplified where symbols are combined to the least extent possible. The example shown in Figure 1 is for a typical engine operation key switch,
24、 having separate positions for Off, On and Start. 4.10 The fonts shown in this International Standard are not intended to be restrictive; other fonts may be substituted, but care shall be taken that legibility is maintained. 4.11 Symbols in this International Standard are presented 32 % of original
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