GB/T 2893.3-2010 English PDF (GBT2893.3-2010)

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GB/T 2893.3-2010: Graphical symbols -- Safety colours and safety signs -- Part 3: Design principles for graphical symbols used in safety signs
GB/T 2893.3-2010
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 01.080.10
A 22
Graphical symbols - Safety colors and safety signs - Part 3:
Design principles for graphical symbols for use in safety
signs
(ISO 3864-3:2006, MOD)
ISSUED ON: JANUARY 10, 2011
IMPLEMENTED ON: JULY 01, 2011
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
Introduction ... 5 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions... 6 
4 Design program ... 7 
4.1 Preparation stage ... 7 
4.2 Design stage ... 8 
5 Review of current standards ... 8 
6 Assigning meaning, function, image content to safety signs ... 8 
7 Design guidelines ... 9 
7.1 Geometry and colour of safety signs ... 9 
7.2 Size and position of graphic symbols ... 9 
7.3 Design template ... 11 
7.4 Symbol design templates for different signs ... 12 
7.5 Line width ... 14 
7.6 Critical details ... 16 
7.7 Consistency of symbol design within symbol families ... 16 
7.8 Determinants ... 17 
7.9 Graphical symbols or combinations of symbolic elements ... 17 
7.10 Use of arrows in safety signs ... 18 
7.11 Characters ... 18 
Appendix A (Informative) Supplemental design guidelines ... 19 
References ... 27 
Graphical symbols - Safety colors and safety signs - Part 3:
Design principles for graphical symbols for use in safety
signs
Important note: Although the colors in the printed version of this Part of GB/T
2893 meet (within tolerance according to visual inspection) the requirements of
GB/T 2893.1, the printed version is not used for color matching. For requirements
on color matching, please refer to GB/T 2893.1, for the stipulations of chromaticity
attributes and photometric attributes of safety colors and the reference values of
safety colors, in the color system.
1 Scope
This Part of GB/T 2893 gives the design principles, criteria, guidelines for graphic
symbols for safety signs.
This Part applies to the design of graphic symbols in the safety signs, which are
specified in GB/T 2893.1. It also applies to the design of the elements of safety signs,
in the product safety labels, which are specified in GB/T 2893.2.
2 Normative references
The following documents are essential for the application of this document. For dated
references, only the dated version applies to this document. For undated references, the
latest edition (including all amendments) applies to this document.
GB/T 2893.1-2004 Graphical symbols - Safety colors and safety signs - Part 1:
Design principles for safety signs in workplaces and public areas (ISO 3864-1:2002,
MOD)
GB/T 2893.2 Graphical symbols - Safety colors and safety signs - Part 2: Design
principles for product safety labels (GB/T 2893.2-2008, ISO 3864-2:2004, MOD)
GB/T 15565 (all parts) Graphical symbols - Terms
3 Terms and definitions
The terms and definitions, which are established in GB/T 15565, apply to this document.
For convenience, some terms in GB/T 15565 are repeated below.
3.1
Critical detail
Symbolic details, which are essential to the understanding of graphic symbols OR
the completeness of graphic symbols.
[GB/T 15565.1-2008, Definition 3.11]
3.2
Determinant
A symbol element, that is attached to a general symbol or other graphic symbol, to
provide some certainty or additional information. It cannot be used alone.
[GB/T 15565.1-2008, Definition 3.7]
4 Design program
4.1 Preparation stage
Before designing graphic symbols for safety signs, it shall:
a) Describe the information to be expressed by the graphic symbols, in detail and
without error;
b) Confirm whether it is necessary to design new graphic symbols for safety signs
(that is, confirm that no suitable graphic symbols currently exist) (see Chapter 5);
c) Clarify the safety information to be conveyed by the safety sign, which is formed
by the graphic symbol;
d) First determine the characteristics of the target group, including the general skills
and ability of the target group, to understand the safety information, which is
conveyed by the specific safety sign; then design the graphic symbol for this
target group;
e) Assign meaning and function to safety signs, in accordance with the provisions of
Chapter 6;
f) Determine the type of signs, which are required for the safety sign, according to
the provisions of 7.1.
4.2 Design stage
4.2.1 Consideration should be given to whether the designed graphic symbol can also
be used in other types of safety signs, as well as the resulting impact on the design of
the symbol (for example, the influence of adding a negative straight bar to the graphic
symbol originally designed for the instruction sign, on the design of the symbol; the
influence on the design of the symbol, when the graphic symbol is used in the restricted
space of the triangle of the warning sign, etc.).
4.2.2 The design of graphic symbols shall comply with the design criteria, which is
specified in Chapter 7.
4.2.3 It should use the design guidelines, which are given in Appendix A.
5 Review of current standards
5.1 The designer shall determine:
a) Whether the graphic symbols to be designed have been included in the safety signs,
which are stipulated in the current national standards for safety signs, AND other
current national standards for graphic symbols;
b) Whether it is possible to modify or combine graphic symbols, which have similar
meanings, to form graphic symbols in the new safety sign;
c) Whether there are standardized determinants, which are suitable for use with the
pictorial symbols for the new safety sign (see 7.8).
5.2 If a specific graphic element is taken from an existing graphic symbol, the meaning
conveyed by the graphic element should be the same as its meaning, in the existing
graphic symbol.
6 Assigning meaning, function, image content to safety signs
6.1 According to the provisions of GB/T 2893.1, each safety sign shall only be used to
convey unique safety information.
6.2 The new safety sign shall be given meaning and function. After the design of the
safety sign is completed, the image content, including key details, shall be clear and
descriptive (see Figure 1).
Appendix A
(Informative)
Supplemental design guidelines
A.1 General
Graphical symbols should contain only those symbolic details, which are necessary to
convey the intended information. Graphical symbols should be designed to:
- Brevity, for ease of understanding and reproduction;
- Easily associated with its intended meaning;
- Based on publicly identifiable objects, concepts, actions, or combinations thereof;
- Easy to distinguish from other graphic symbols;
- Only include symbolic details, that help to understand the meaning of the graphic
symbols.
When designing graphic symbols, for instruction signs, warning signs, safety condition
signs or firefighting facility signs, the designer should pay attention to the fact, that the
same symbol may also be used in a prohibition sign, to indicate a prohibited action.
When used in prohibition signs, part of the graphic symbol is obscured by a negative
bar. Therefore, if the designed graphic symbol may be used in a prohibition sign, the
designer should ensure that the critical details necessary to understand the safety sign
are not located in the area, which is ob...