GB/T16902 specifies the formation principles, formation guidelines and application of prototype symbols for equipment graphic symbols. This part of GB/T16902 specifies the main formation principles of principle symbols for equipment graphic symbols. According to the meaning to be expressed by the prototype symbol, this part not only contains the design rules of graphics (such as shape and size), but also contains the drafting rules of related text. This part applies to graphic symbols for the following purposes: - Identify equipment or its components (for example, controllers or displays); - Indicate functional status or functions (for example, on, off, alarm); - Indicate connections (for example, terminals, filling points); - Provide information on packaging (for example, identification of contents, loading and unloading instructions); - Provide operating instructions for equipment (for example, restrictions on use). This part does not apply to prototype symbols in the following areas: - Safety signs; - Drawings and diagrams; - Technical documents; - Public information. GB/T 16902.1-2004 Graphical Symbol Representation Rules Graphical Symbols for Equipment Part 1: Prototype Symbols GB/T16902.1-2004 Standard Download Decompression Password: www.bzxz.net
GB/T16902 specifies the formation principles, formation guidelines and application of prototype symbols for equipment graphic symbols. This part of GB/T16902 specifies the main formation principles of the principle symbols for equipment graphic symbols. According to the meaning to be expressed by the prototype symbol, this part not only contains the design rules of the graphics (such as shape and size), but also contains the drafting rules of the relevant text. This standard applies to graphic symbols used for the following purposes: - to identify equipment or its components (e.g., controllers or displays); - to indicate functional status or functions (e.g., on, off, alarm); - to indicate connections (e.g., terminals, filling points); - to provide information on packaging (e.g., identification of contents, loading and unloading instructions); - to provide operating instructions for equipment (e.g., restrictions on use). This standard does not apply to prototype symbols used in the following areas: - safety signs; - drawings and diagrams; - technical documentation; - public information.

ICS C1. 080. 01
National Standard of the People's Republic of China
GB/T 16902.1---2004
Replaces 3/T 16902.1---1997
Rules for the presentation of graphic symbols
Graphical symbols for use on equipment
Part 1 : Symbol originals
Published on 2004-05-10
General Trade Commission for Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
Implemented on 2004-12-01
GB/T 16902.1—2004
(13/T16902 "Graphic Symbols for Graphical Symbols" is divided into four parts: ... Part 1: Original Symbols
Part 2: Shape and Use of Arrows:
Part 3: Application Guidelines;
Part 1: Supplementary Guidelines for the Adaptability of Graphic Symbols (Icons) for Screens and Displays. This part is the first part of GB/T16902. This part replaces (B/T16902.1—1997 Graphic Symbols Symbol representation rules - Graphic symbols for equipment - Part: Formation of graphic symbols. Compared with GB/T 16902.1-1997, the main changes in this part are as follows: the term "symbol original image" is changed to "original symbol" and the definition content is revised (Chapter 3 of the 1997 edition; 3. General of this edition); the slash from the top left to the bottom right is no longer allowed as a negative element (5.13 of the 1997 edition; 6.9 of this edition); - the geometric shapes in the basic graphics are modified (6.1 of the 1997 edition, the number 8; 7.1 of this edition, the number 9). ②); Added the allowed and unallowed situations when the symbol line exceeds the octagon in the basic figure (this edition 7.2); changed the "nominal size" to the "nominal size" (1997 edition 6.3; this edition 7.1); - Deleted the description and example of the original "nominal size" (1997 edition 6.3.1); - Deleted the factory's regulations on the size of graphic symbols in use (1997 edition 7.1); --- Added the specification of the original symbol (this edition 8.1); Added references.
GI3/T1G 902 is one of the national standards in the series of "Rules for the Representation of Graphical Symbols". The expected structure of these national standards is listed below: A) (: B/TJ6900 General Rules for the Representation of Graphical Symbols. b) GB/T16901 "Rules for the Representation of Graphical Symbols for Technical Documents: - Part 1. Basic Rules
Part 2: Computer Electronic File Format Specifications for Circular Symbols (including Symbols in the Reference Symbol Library) and Their Exchange Requirements:
- Part 3, Classification of Connection Points, Networks and Their Coding. c) GB/T1.6902 "Rules for the Representation of Graphical Symbols for Equipment" Part 1: Prototype Symbols;
Part 3: Shape and Use of Arrows;
Part 3: Application Guidelines;
Part 4: Supplementary Rules for the Adaptability of Graphic Symbols (Icons) for Screens and Displays. d) (F/T16903 Graphical symbols for marking and measuring signs - Part 1: Formation of graphic symbols; Part 2: Visual design principles and testing procedures; Part 3: Development and testing procedures; Part 4: Principles and requirements for the use of graphic symbols: This part is proposed by the China National Institute of Standardization. This part is under the jurisdiction of the National Technical Committee for Graphic Symbols Standardization. This part is drafted by the China National Institute of Standardization, the National Technical Committee for the Preparation of Electrical Information Structure Documents and Graphic Symbols Standardization, the China Machinery Productivity Promotion Center, and the Ministry of Construction's Standardization and Rating Department. The drafters of this part are Chen Yongquan, Bai Dian, Guo Ting, Zhang Liang, Qiang Yi, and Wei Ming. CB/T 16902.1-2004
This part was first issued in 1986 (then the standard number was GB7093.3-1986), and was revised for the first time in 1997. This is the second revision
G8/16902.12004
Graphic symbols are symbols that use graphics or images as the main features to express certain things or concepts. Graphic symbols for equipment have a wide range of uses on equipment. When designing a family of symbols for the same place or similar equipment, the consistency of the symbols is very important. When these symbols are reduced to a very small size, their visual clarity is also very important. Therefore, it is necessary to standardize the principles for forming graphic symbols for equipment to maintain the consistency of symbols and ensure the visual clarity of symbols, thereby improving the recognizability of symbols. 1 Scope
Rules for the representation of graphic symbols Graphic symbols for equipment Part 1: Prototype symbols
GB/T 16902.12004
GB/T16902 specifies the formation principles, formation guidelines and application of prototype symbols for equipment graphic symbols:
This part of GB/T16902 specifies the main formation principles of prototype symbols for equipment graphic symbols. According to the meaning to be expressed by the prototype symbol, this part not only contains the design rules of graphics (such as shape and size), but also contains the drafting rules of related text. This part applies to graphic symbols for the following purposes: to identify equipment or its subsequent parts (for example, controller or mouse); to indicate functional status or function (for example, on, off, alarm); to indicate connection (for example, terminal, grab point); Provide information on the packaging (e.g. identification of contents, loading and unloading instructions); provide operating instructions for the equipment (e.g. restrictions on use). This part does not apply to prototype symbols in the following areas: safety signs;
drawings and barrel diagrams:
- technical documents;
- public information.
2 Normative referenced documents
The provisions in the following documents become provisions of this part through reference in this part of (13/T16902). This is a reference to the current date, and all subsequent amendments (excluding errata) or revisions are not applicable to this part. However, parties to an agreement based on this part are encouraged to study whether the latest versions of these documents can be used. For any undated document, the latest version shall apply to this part.
GB/T15565 Graphical symbols
GB/T2893.1 Graphical symbols Safety colors and safety signs Part 1: Design principles for safety signs in workplaces and public areas (G3/T2893.1-2004, IS03864-1:2002, MOF) G13/T1252 Graphical symbols Arrows and their application 3 Terms and definitions
GB/T15565 established and the following terms and definitions apply to this part of GB/T16902. 3.1
Graphical symbol elements graphical symbol elements! The components of the original symbol with unique meanings. Note 1: Letters, numbers, punctuation marks and mathematical symbols can be used as graphic symbol elements (see GB3101. GB3102 and IEC:60%27). Note 2: Graphic symbols with fixed meanings can be used in family symbols to represent the same concept. 1 This standard will be revised and renumbered GB/T16002.2. (See supplementary foreword). GB/T 16902.1---2004
Original symbol symbol original
Design drawing of a graphic symbol for equipment drawn on a basic figure according to the representation rules. Note: The purpose of the original symbol is to serve as a basis for reference or full copy. 3.3
Title title
Used to identify the unique name of a graphic symbol. Note: Provide a unique name for a graphic symbol without summarizing its application. 3.4www.bzxz.net
Description
Normative text attached to the graphic representation of the original symbol. Note: Used to explain in detail the purpose, application and use of the original symbol. 4 Meaning
4.1 Expression of meaning
The meaning of the original symbol is comprehensively reflected by the title, graphic representation and application instructions. The meaning is clear and does not rely on special technology or subject terms
4.2 Direction of Graphic Symbols
Graphic symbols should be used in the direction determined by the prototype symbol. During the development of the prototype symbol and the subsequent use of the graphic symbol whose meaning is related to the direction, care should be taken to avoid ambiguity. For example, ambiguity may occur when the graphic symbol is placed on a rotatable knob. Therefore, the prototype symbol should be designed to maintain its meaning in any direction, such as Figure 1). When the meaning of the graphic symbol is indeed related to its direction, such as 1h), it should be clearly stated in the description of the prototype symbol. Price
GB/T15273.52002(15): Core embedding molding position) Examples of graphic symbols with no meaning and direction GB/T 16273.2:496(060):
Longitudinal feed
GH/T16273.2--1956(062)
Vertical feed
b Examples of graphic symbols with meaning and direction Figure 1 Graphic symbols with different directions
5 Combination of graphic symbols
GB/T 16902.1—2004
To express certain concepts, graphic symbols or graphic symbol elements can be combined to form a new symbol original image: the meaning of the new symbol original image should be consistent with the meaning of a single graphic symbol or graphic symbol element. The usage is shown in Figure 2. GB/T 16273.1-1996(016): Wind cooling: GB/T16273.1-1996(021): Wind cooling is combined with GB/T16273.1896(021): Wind cooling to produce GB/T 1273.1996(046): Wind cooling.
Figure 2 Example of graphic symbol combination
6 Formation of prototype
6. Formation of prototype symbol
The prototype symbol should be formed within the basic pattern shown in Figure 5 while considering the specific requirements of Chapter 7 and Chapter 8. 6.2 Design guide
The design of the prototype symbol should be:
a) Simple: Convenient for perception and reproduction;
b) Easy to distinguish: Easy to be combined with d) Easy to make: can be produced by common production and copying methods. 6.3 Line width
The line width of the prototype symbol should be 2mm. As an exception, if the instrument is for visual clarity, the line width of 4IIn and 2mm can be combined, as shown in Figure 3.
G3/T15192—1994 (B2): Material input into the machine Figure 3 Line width usage examples
GB/T16902.1--2004
The 2mm line width specified is intended to be used only in the standardized prototype symbol atlas. Its purpose is to ensure the overall consistency of the equipment graphic symbols. When the prototype symbol is used in a specific field, the line width can be changed as long as it meets the visual design criteria. It is recommended that the graphic symbols used in specific application fields should also be included in the corresponding product label, see 8, 3. 6.4 Spacing
Select the line spacing of the prototype symbol When determining the minimum spacing, visual clarity and the reproduction method to be used should be considered. In principle, the minimum spacing between parallel lines in the original symbol should be less than 1.5 times the line spacing. 6.5 Angles
Angles smaller than 30 degrees should be avoided in the original symbol. 6.6 Filled areas
Unless the meaning or clarity of the original symbol requires filling, filled areas should be avoided in the original symbol. 6.7 Original symbols with arrows
Symbols with arrows should comply with GB/T 1252. 6.8 Character symbols
For the components of interstitial symbols such as letters, numbers, punctuation marks and mathematical symbols, simple character forms should be used. The minimum character width in the original symbol is 10mm. 6.9 Negation
A right-angled fork formed by two slashes with a line width of 2mm should be used to indicate negation, as shown in Figure 4 a) and b). As an exception, if it is only for visual clarity, the angle of intersection of the two slashes can deviate from 90\. a) GB/T5465.2 (436): Sound suppression Figure 4 Negation example
L) GB/15465.2 (5477): Remove the screen
The cross of negation can be used to indicate negation, elimination or opposite functions. The meaning of negation depends on the graphic symbol to be negated. For example, when the graphic symbol indicates function control, negation usually means negation or elimination of the function, as shown in Figure 4 a) and h). In the case of a graphical symbol representing a functional state, negation usually represents the opposite functional state, as shown in Figure 4b). When the symbol's usage level represents an action (e.g., an instruction), the negation band is used to represent the opposite operation. The red circle with a red fixed slash as specified in GB/T 2893.1 is used for safety purposes and should not be used as a negation for a graphical symbol for equipment.
A slash from the top left to the bottom right represents negation in public information graphical symbols and is therefore not used. NOTE: Standardization of the prototype symbol for negation is necessary only when the negation scheme represents a specific meaning. 7 Basic graphic pattern
7.1 Structure
The basic graphic pattern shown in Figure 5 should be used as the basis for forming the prototype symbol (see 7.2). The basic graphic pattern as a design tool for the prototype symbol can ensure a balanced visual impression between graphical symbols. Label
GB/T 16902.1—2004
Nominal size
Square with a side length of 75 mml. The square forms the most horizontal and vertical dimensions of the basic figure, and is divided into a grid with a line spacing of 12.5 mm.
The basic square with a side length of 5 mm. This size is equal to the nominal size of the prototype symbol s0 mm. The basic square with a diameter of 56.6 mm has an area similar to that of the basic square. The circle with a diameter of 50 mm is the inscribed circle of the basic square. Two rectangles with the same area as the basic square have a width of 43 mm and a height of 62.5 mm. They are perpendicular to each other, and each rectangle passes symmetrically through the pair of basic squares. The octagon formed by the line segment that forms an angle of 15' with the outer edge of the square, which is rotated 45° from the basic square of 50 mm, is the outer boundary of the basic figure. Figure 5 Basic graphics
7.2 Application of basic graphics
7.2.1 In order to obtain a consistent visual impression between graphic symbols, the prototype symbols should be designed in the basic graphics according to the following principles: Prototype symbols composed of a single geometric shape, such as a circle, square or rectangle, should use the corresponding geometric shape of the basic graphics +
other primitive symbols, and care should be taken to ensure that they have the same visual impression and consistency; the key element in the basic graphics is the basic square ② related to the nominal size. The basic circle ③ has a similar area to the rectangles @ and @. Therefore, in order to obtain the same visual impression as the basic square ② with a side length of 5 mm, the circle without the extended part should be drawn on the basic circle, and the rectangle should be drawn on the rectangles @ and @. The circle with the extended graphic symbol element should be drawn on the circle @;
The visual impression of the size of the prototype symbol drawn with the basic figure is equivalent to the nominal size of 0mm; d
On the basis of complying with the above principles, the prototype symbol should be designed as large as possible, but it should not extend outside the octagon of the basic figure;
The line of the prototype symbol should coincide with the line of the basic figure and use it as the axis; g)
In the case where the center of the line touches the octagon③, half of the line width can extend outside the octagon. However, the outer boundary of the line should not exceed the square with a side length of 75 mm), as shown in Figure 6. GB/T 16902.1---2004
) Allowed
b) Allowed
Figure 6 Examples of what is allowed and what is not allowed when the line exceeds the octagon 7.2.2 See Figure 7 for examples of the application of the basic figure. a
GE/T 5465.2(5307):
General symbols for alarm
e) GB/T 5465. 2(5396):
Movement of the support frame within the plane of the bed
ISO 700D(1107):
Reading data from the memory and
writing data to the memory
GB/T 15273. 6---2063
(1 07):
Battery charging indication
GB/T 5465.2(5084):
Amplifier
TE: 60417(5604):
GB/T 17719---:999
(05-04) :
kneel small copy
GR/T 16273.62003
(1-32),
Front windshield wipers and washers
GB/T 5465,2(5115):
Signal lights
IFC:60417(5570):
GB/T 16273.1—1996
u)GB/T 16273. 4-- 2001
[3-(3):
Functional header
Figure 7 Example of application of basic graphics
d) Not allowed
GB/T 5465.2(5056):
Brightness, luminance
GB/T 5465. 2(5027):
Effect of action
IS0 7000(1103):
GB/T 16273,4.-200]
(2 01):
Fast operation, fast
8 Prototype symbol
8.1 Specification
GB/T 16902.1---2C04
The original symbol is a graphic symbol pattern with superscripts, as shown in Figure 8. The superscripts are consistent with the corners of the square ① with a side length of 75 mm in Figure 5; these superscripts are used to facilitate the precise positioning and determination of the scale of the original symbol. Each superscript is composed of vertical and horizontal lines with a length of mm. G3/116273,1-1396(009); Notes
Figure 8 Example of original symbol
Note 1: The original symbol drawn in the basic figure can be enlarged or reduced in size by changing the scale when actually used. Note 2: When the expected size of the graphic symbol copy is relatively small or in a place where the viewing distance is larger than the calibration, such as on a small keycap, special attention should be paid to avoiding unnecessary details and complexity when forming the original symbol. It should be noted that clarity also depends on other factors such as lighting levels and light-to-light contrast:
8.2 Development procedure
The development of the prototype symbol should follow the following procedure: a) Confirm the need for the graphic symbol to be designed; b) Clearly describe the purpose of the graphic symbol and consider the influence of the orientation of the graphic symbol (see 4.2); c) Analyze the intended users, the tasks involved and the characteristics of the use environment; d) Consider prototype symbols that already exist or are currently being standardized in the same or related fields: Design the prototype symbol as described in Chapter 7; d) Consider the clarity and comprehensibility of the prototype symbol in its use environment. 8.3 Application
In actual application, in order to improve the appearance and perceptibility of the original symbol, or to coordinate with the design of the equipment using the symbol, the original symbol shall be modified as necessary, such as: a) change the line width: b) round the corners: fill the area of ​​the graphic symbol
1) modify the design of the arrow according to (G13/T1252; c) interrupt the intersecting lines: GB/T 16902.1-2004
f define the graphic symbol. As long as the original symbol meets the visual design criteria specified in this part of GB/T16902, the user can make iterative changes according to the actual situation. The detailed application guide of the original symbol is still under development.
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