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1、STD*JIS 2 8312-ENGL 1997 m 4933606 0561254 TT2 m JIS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association JIS Z 8 3 1 2 1 9 9 9 (IS0 128-20 : 1 6 ) Technical drawings - General principles of presentation - Basic convention for lines a ICs 01.100.01 Descriptors : t
2、echnical drawing, lines (geometry), engineering drawings Reference number : JIS Z 8312 : 1999 (E) 7s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networkin
3、g permitted without license from IHS -,-,- STDmJIS 2 8332-ENGL L999 Z 8312 : 1999 (IS0 128-20 : 1996) Foreword 4933b08 0563255 939 This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Ja
4、panese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently JIS Z 8312 :1984 is replaced with JIS Z 8312 :1999. Date of Establishment: 1984-03-01 Date of Revision: 1999-03-20 Date of Public Notice in Official Gazette: 1999-03-23 Investigated by: Japanese
5、 Industrial Standards Committee Divisional Council on Basic Items JIS Z 8312: 1999, First English edition published in 2000-02 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the orig
6、inal JIS is to be the final authority. 4 O JSA 2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher
7、. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS 2 8322-ENGL 1999 m 4933608 OSb1
8、25b 875 JAPANESE INDUSTRIAL STANDARD JIS Z 8312: 1999 (IS0 128-20: 1996) Technical drawings - General principles of presentation - Basic convention for lines Introduction This Japanese Industrial Standard has been prepared based on IS0 128-20, Technical drawings - General principles of presentation
9、- Part 20 : Basic convention OF lines issued in 1996 without changing the technical con- tents. The general principles in this Standard shall apply to the presentation of lines used in all kinds of technical product documentation. The application of lines within drawings in special technical fields
10、varies con- siderably. Therefore rules of application are not given in this Standard. Other International Standards containing rules for lines in specialized fields are listed in Annex A. The descriptions underlined with dots in this Standard are not included in the original International Standard.
11、1 Scope This Standard establishes the types of lines, their designations and their configurations, as well as general rules for draughting of lines used in tech- nical drawings, e.g. diagrams, plans or maps. Remarks : . The Internatioal Standard corresponding -_- to this Standard is as IS0 128-20:19
12、96 Technical drawings - General principles of presentation - Part 20: Basic convention for lines fo!lOws, 2 Definitions For the purposes of this Standard, the following definitions apply. 2.1 line Geometrical object, the length of which is more than half of the line width and which connects an origi
13、n with an end in any way, e.g. straight, curved, without or with interruptions. Remarks 1 The origin and the end may coincide with one another, e.g. in the case of a line forming a circle. 2 A line, the length of which is less than or equal to half of the line width, is called a dot. 3 A test should
14、 be made in order to check the appearance of drawings intended to be microcopied or transferred by fax. 2.2 line element Single part of a non-continuous line, e.g. dots, dashes, which vary in length, and gaps. 2.3 line segment non-continuous line, e.g. long dash/gap/dot/gap/dot/gap. Group of two or
15、more different line elements which form a 3 Types of lines 3.1 Basic types The basic types (called line type) are in accordance with Table 1. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007
16、 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS Z 8312-ENGL 1999 4933608 0563257 701 2 Z 8312 : 1999 (IS0 128-20:1996) No. o1 02 03 o4 05 o6 07 08 o9 10 11 12 13 14 15 Table 1 Basic type (line type) .*. . .-. 1 - 1 Description continuous line dashed line d
17、ashed spaced line long dashed dotted line long dashed double-dotted line long dashed triplicate-dotted line dotted line long dashed short dashed line long dashed double- short dashed line dashed dotted line double-dashed dotted line dashed double- dotted line double-dashed double-dotted line dashed
18、triplicate- dotted line dou ble-d ashed triplicate-dotted line Informative reference : The “description” expresses the “line element” such as the following. _- The designations . and definitions of line elements are according to Table 3 . _- -_ I Copyright Japanese Standards Association Provided by
19、IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- I * I 3 Z 8312 : 1999 (IS0 128-201996) dashed line : “dash / gad 3.2 Variations of the basic types of lines Pos
20、sible variations of the basic types of lines in accordance with Table 1 are given in Table 2. Line type I Table 2 Description I c uniform wavy continuous line uniform spiral continuous line uniform zigzag continuous line freehand con- tinuous line NOTE : Table 2 contains only variations of the basic
21、 type of line No. 01. Variations of the basic types No. O2 to No. 15 are possible and are presented in the same way. 3.3 Combinations of lines with the same length 3.3.1 Arrangement of two or more lines parallel to each other For ex- amples see Fig. 1 . Copyright Japanese Standards Association Provi
22、ded by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 2 8312 1999 (IS0 128-20:1996) - Fig. 1 3.3.2 Arrangement of two different types of lines a) With diffe
23、rent line widths superimposed. See Fig. 2 a) and b) for examples Fig. 2 a: a continuous and a dotted line; Fig. 2 b): a continuous and a dashed spaced line. b) Fig. 2 b) Arranged next to each other. See Fig. 3 for an example (two continuous lines either side of two dashed spaced lines). Fig. 3 3.3.3
24、 Arrangement of two continuous lines parallel to each other with regularly recurring connecting elements between them See Fig. 4 a) and b) for examples Fig. 4 a): blackened circular elements; Fig. 4 b): blackened trap- ezoidal elements. 3.3.4 Arrangement of regularly recurring geometric pictorial el
25、ements in association with continuous lines a) Without interruption of a continuous line. See Fig. 5 for examples. I I I I I I I L L L L L L L A A A A A A A I I I I I . I I Fig. 5 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=W
26、ing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 Z 8312 : 1999 (IS0 128-201996) b) With interruption of a continuous line. See Fig. 6 for examples. Fig. 6 4 Line dimensions 4.1 Line width The width, d, of all types of lines s
27、hall be one of the following depending on the type and size of the drawing. This series is based on a common ratio 1: fi (= 1: 1.4): 0.13 mm; 0.18 mm; 0.25 mm; 0.35 mm; 0.5 mm; 0.7 mm; 1 mm; 1.4 mm; 2 mm The widths of extra wide, wide and narrow lines are in the ratio 4:2:1. The line width of any on
28、e line shall be constant throughout the whole line. 4.2 Deviation in line width Line widths may deviate from those specified in 4.1 providing that it is possible to differentiate unambiguously between two adja- cent lines with different widths. If drawing equipment which produces constant line width
29、 is used, the deviation in line width between two such lines shall not be greater than f O.M. 4.3 Configuration of lines of line elements should conform to those of Table 3. For the preparation of drawings by hand the lengths Copyright Japanese Standards Association Provided by IHS under license wit
30、h JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 Z 8312 : 1999 (IS0 128-20:1996) Long dashes 04 to 06, 1 08 and O9 Table 3 I 24d I Line element 1 Line type NO. I Length I Spaces 0
31、3 18d Note : The lengths shown in this table are valid for line elements with semicircular and squared ends. In the case of line elements with semicircular ends, the length of the line element corresponds to the distance covered by a technical pen (with a tubular tip and using India ink) from the or
32、igin up to the end of the line ele- ment. The total length of such a line element is the sum of the length shown in Table 3 plus d. Dots 04 to 07 and 10 to 15 I0.5d Gaps 02 and 04 to 15 3d 1 I Short dashes I 08 and O9 I 6d Dashes 02, 03 and 10 to 15 12d Formulae for the calculation of some of the ba
33、sic types of line and line elements are given in IS0 128-21. The formulae are intended to facilitate the preparation of drawings using computer-aided design (CAD) systems. 5 Draughting of lines 5 . 1 Spacing The minimum space between parallel lines should not be less than 0.7 mm, unless otherwise sp
34、ecified. Remarks : In certain cases when computer-aided drawing techniques are used, the spacing of lines on the drawing does not represent the actual spacing, e.g. for the representation of screw threads. This fact has to be considered when data sets are established, e.g. for the operation of machi
35、ne tools. 5 . 2 Junctions 5 . 2 . 1 Types The basic types of lines, No. 02 to No. 06 and No. 08 to No. 15 should preferably meet at a dash (see Fig. 7 to Fig, 1 2 ) . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie N
36、ot for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- - STD-JIS 2 8312-ENGL A999 9 4933608 0561262 079 9 7 2 8312 : 1999 (IS0 128-201996) I F i g . 7 Fig. 9 Fig. 8 F i g . 1 0 Fig. 11 Fig. i2 Lines of basic type No. 07 should preferably meet at
37、a dot (see Fig. 13). ? Fig. 13 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS -,-,- 8 2 8312 : 1999 (IS0 128-20
38、:1996) 5 . 2 . 2 Representation The requirement of 5 . 2 . 1 shall be fulfilled by starting the lines at the junction (see Fig. 14) or by using a complete or partial, cross formed by dashes (see Fig. 15 and Fig. 16). *A/- .-.-. Informative reference : The width and length of line are presented in th
39、e original standard. Fig. 15 Fig. 14 Fig. 1 6 5 . 3 Location of a second line (auxil-iarylin-e) Two different ways of draughting two parallel lines are shown in Fig. 17 a) and b ) . The preferred ver- sion is shown in Fig. 17 a) (the second line is drawn below or to the right of the first line). Inf
40、ormative reference : The second line is called the auxiliary line. . a) , , Fig. 17 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted witho
41、ut license from IHS -,-,- 9 2 8312 : 1999 (IS0 128-20:1996) 6 Colours Lines shall be drawn in black or white depending on the colour of the background. Other standardized colours may also be used for drawing stan- dardized lines. In this case, the meaning of the colours shall be explained. 7 Designa
42、tion following elements in the order given: The designation of the basic types of lines shall comprise the a) “Line” b) reference to JIS Z 8312 (or IS0 128-20) c) the number of the basic type in accordance with Table 1 d) the line width in accordance with 4.1 e) the colour (if applicable). EXAMPLES
43、Designation of a line of type No. 03 (03), line width 0.25 mm (0.25): Line JIS Z 8312- 03 x 0.25 (according to the original standard, line IS0 128-20- 03 x 0.25) Designation of a line of type No. 05 (05), line width 0.13 mm (0.13) and white in colour: Line JIS Z 8312 - 05 x 0.13 / white (according t
44、o the original standard, line IS0 128-20 - 05 x 0.13 / white) . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:02:09 MDTNo reproduction or networking permitted without license from IHS
45、-,-,- - STD-JIS Z 8312-ENGL 1999 4933b08 05b22b5 888 = 10. 2 8312 : 1999 (IS0 128-201996) Annex A (informative) Bibliography II IS0 128-21:1997, Technical drawings - General principles of presentation - Part 21 : Preparation of lines by CAD systems. 121 IS0 1219-1:1991, Fluid power systems and compo
46、nents - Graphic symbols and circuit diagrams - Part 1: Graphic symbols. 31 IS0 3511-1: 1977, Process measurement control functions and instrumentation - Symbolic representation - Part 1: Basic requirements. 4 IS0 351 1-2: 1984, Process measurement control functions and instrumentation - Symbolic rep
47、resentation - Part 2: Extension of basic requirements. 51 IS0 3511-3: 1984, Process measurement control functions and instrumentation - Symbolic representation - Part 3: Detailed symbols for instrument inter- connection diagrams. 6 IS0 3511-4: 1985, Industrial process measurement control functions and in- strumentation - Symbolic representation - Part 4 : Basic symbols for pro- cess computer, interface, and shared display lcontrol functions. 1 7 1 IS0 5455:1979, Technical drawings - Scales. 181 IS0 6428:1982, Technical drawings - Requirements for microcopying. 9 1 IS0 10628-1:1997, Flow diag