GB/T 2893.4-2013 Graphical symbols Safety colors and safety signs Part 4 Chromaticity and photometric properties of safety sign materials GB/T2893.4-2013 Standard compression package decompression password: www.bzxz.net
This part of GB/T2893 specifies the relevant requirements and test methods for the chromaticity and photometric properties of the colors of safety signs used in workplaces and public places, and provides chromaticity and photometric specifications for the safety colors and contrast colors specified in GB/T2893.1-2013. The physical requirements met by safety signs are mainly related to daylight colors and normal lighting environments. This part also includes the chromaticity requirements and test methods for safety signs and phosphorescent materials used in non-lighting environments. This part is applicable to all places where personal safety issues need to be paid attention to. This part does not apply to the transmission of guidance signals for railway, highway, inland waterway, sea and air traffic. In general, it does not apply to areas where there are other provisions in laws and regulations. The chromaticity and photometric properties of retroreflective safety signs, retroreflective materials combined with fluorescent or phosphorescent materials, or luminous safety signs activated by radioactive sources are not specified in this part.
GB/T 2893 "Graphic symbols for safety colors and safety signs" is divided into four parts:
Part 1: Design principles for safety signs and safety markings;
Part 2: Design principles for product safety labels;
Part 3: Design principles for graphic symbols for safety signs;
Part 4: Chromaticity and photometric properties of safety sign materials.
This part is Part 4 of GB/T 2893.
This part was drafted in accordance with the provisions of GB/T1.1-2009 "Guidelines for standardization work Part 1: Structure and preparation of standards".
This part uses the translation method to modify and adopt ISO3864-4:2011 "Graphical symbols safety colors and safety signs Part 4: Colorimetric properties and photometric properties of safety sign materials".
This part adds secondary numbers to Part 4.1 of ISO3864-4:2011 for easy reading.
The technical differences between this part and ISO3864-4:2011 and their reasons are as follows:
--- The referenced document ISO3864-1 in the original international standard is replaced by GB/T2893.1, which is modified and adopted as an international standard and marked with a date;
--- The referenced document ISO17724 in the original international standard is replaced by GB/T15565 (all parts).
This part is proposed and managed by the National Technical Committee for Standardization of Graphic Symbols (SAC/TC59).
The drafting units of this part are: China National Institute of Standardization, General Research Institute of Mechanical Science, Institute of Psychology of the Chinese Academy of Sciences, and Institute of Standardization of Light Industry.
The main drafters of this part are: Zou Chuanyu, Bai Dianyi, Chen Yongquan, Zhang Liang, Qiang Yi, Han Buxin, and Yang Zaonian.
The following documents are indispensable for the application of this document. For any dated referenced document, only the dated version applies to this document
. For any undated referenced document, the latest version (including all amendments) applies to this document.
GB/T2893.1—2013 Graphical symbols—Safety colors and safety signs—Part 1: Design principles for safety signs and safety markings
(ISO3864-1:2011, MOD)
GB/T15565 (all parts) Graphical symbol terminology
CIE15 Colorimetry
CIE69 Methods of characterizing illuminance meters and luminance meters: Performance, characteristics and
specifications ||
tt||
Introduction IV
1 Scope1
2 Normative references1
3 Terms and definitions1
4 Requirements3
4.1 General 3
4.2 Object colour under external lighting 3
4.3 Object colour of energized internally illuminated safety signs 4
5 Test methods 7
5.1 General 7
5.2 Object colour under external lighting 8
5.3 Object colour of energized internally illuminated safety signs 8
Appendix A (Informative) Object colours of different types of safety signs and materials 10
Appendix B (Normative) Classification of colours of light emitted by phosphorescent materials 12
Appendix C (Normative) Specifications for colour instruments and photometric instruments 15
Appendix D (Informative) Guidelines for photometric relationships between and within safety colours and contrast colours of graphic symbols 17
Appendix E (Informative) Examples of safety colours and contrast colours for object colours of common materials 18
Appendix F (Informative) Considerations of color vision deficiency 20
References 21

ICS 01. 080. 10
National Standard of the People's Republic of China
GB/T2893.4—2013
Graphical symbolsSafely colours and safety signs-Part 4 : Colorimetric and photometric properties of safety sign materials(SO 3864 4:2011, MOD)
2013-07-19 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of the People's Republic of China
2013-11-30 Implementation
Normative references
3 Terms and definitions
4.2 Object color under external lighting
4.3 Object color of energized internal lighting safety signs 5 Test methods
5.2 Object color under external lighting
5.3 Object color of energized internal lighting safety signs |tt||Appendix A (Informative Appendix) Object colors of different types of safety signs and materials Appendix B (Normative Appendix) Classification of the colors of light emitted by phosphorescent materials Appendix C (Normative Appendix)
Specifications for color instruments and photometric instruments
Except for informative appendix)
Guidelines for the relationship between safety colors and contrast colors of graphic symbols and internal photometric properties Appendix E (Informative Appendix) Examples of safety colors and contrast colors for common materials Appendix F (Informative Appendix)
References
Consideration of color vision defects
GB/T 2893.4—2013
CB/T2893 Graphical symbols: safety colors and safety signs" is divided into four parts: Part 1: Design principles for safety signs and safety markings: Part 2: Design principles for product safety labels: Part 3: Design principles for graphic symbols for safety signs: Part 1: Chromaticity and photometric properties of safety sign materials. This part is Part 4 of B/1 2893.
GB/T 2893.4—2013
This part was drafted in accordance with the provisions of GB/T-1-2009 Standardization Guidelines Part 1: Structure and Preparation of Standards. This part uses the translation method to modify and adopt [S(] 3554-4:2011 Graphical symbols, safety colors and safety signs, Part 4: Chromaticity and photometric properties of safety sign materials. This part adds a secondary number to Part 4.1 of IS038611,2911 to facilitate reading. This part has technical differences with JS03864-+:2011 and their original meanings: Use modification to adopt international standards The GB/T2893.1 of the production period replaced the original international standard point 1SO3864-1: GB/T15565 (all parts) replaced the referenced document I50)17721 in the original international standard. This part was proposed and managed by the National Technical Committee for Standardization of Graphic Symbols (SAC/TC59). The drafting units of this part are: China National Institute of Standardization, General Research Institute of Mechanical Science, Institute of Psychology of the Chinese Academy of Sciences, Institute of Standardization of Light Industry Code
The main drafters of this part are: Zou Chuanyu, Bai Dianyi, Chen Yongquan, Zhang Liang, Qiang Yi, Han Buxin, Yang Zuonian. GB/T2893.4—2013
This part of GB/T2893 provides safety sign manufacturers and suppliers, test laboratories and watch manufacturers with the colorimetric and photometric property specifications and test methods of safety signs made of different types of materials. The full implementation of this part will help deepen people's understanding of the performance requirements of safety signs and enhance their understanding of the properties of various safety signs in daily life.
This part is intended for use by relevant standardization technical committees responsible for developing specific safety signs in various industries, so as to ensure that all safety signs are based on the same set of requirements for chromaticity and photometric properties and corresponding test methods. 1 Scope
Graphic symbols, safety colors and safety signs
Part 4: Chromaticity and photometric properties of safety sign materials
GB/T2893.4--2013
This part of GB3/T2893 specifies the relevant requirements and test methods for the chromaticity and photometric properties of the colors of safety signs used in workplaces and public places, and provides chromaticity and photometric specifications for the safety colors and contrast colors specified in GB/T2893.1-20:3. The physical requirements met by safety signs are mainly related to daylight colors and normal lighting conditions. This part also includes the colorimetric requirements and test methods for safety signs and phosphorescent materials used in an unlit environment. This part applies to all places where personal safety issues need to be paid attention to. This part does not apply to the transmission of guidance signals for railways, roads, inland waterways, sea and air traffic: in general, it does not apply to other matters where laws and regulations provide otherwise. The colorimetric and photometric properties of radioactive safety signs, fluorescent or phosphorescent materials combined with fluorescent or phosphorescent materials or luminous safety signs excited by radioactive sources are not specified in this part. 2 Normative references
The following documents are indispensable for the application of this document. For all dated references, the latest version (including all amendments) applies to this document. For all undated references, the latest version (including all amendments) applies to this document. GB/T2893.1-2013 Graphical symbols Safety colors and safety signs Part 1: Design principles of safety signs and safety markings (15O3864-1:201, MOD)
C: B/T15565 (all parts) Graphical symbols: Terminology CiE15 Colorimetry (olorimcry)
CIE 69 Illuminance meter characterization method and illuminance meter: performance, characteristics and specifications (Methocis cf charecterizing illaminar.ceriettrs ard lumiranct: me:ters: Per.ormarp,cl:aracter:etics ane 3 Terms and definitions
The terms and definitions defined in CB/T: 5565 and the following terms and definitions apply to this document. For ease of use: The following repeats some of the terms and definitions in CB/T 15565.2. 3.1
Colour range
CIE 2 standard chromaticity observer t, chromaticity coordinates and brightness factor or brightness boundary values ​​of a specified colour. 3.2
Contrast
The difference in brightness factor between the symbol and its background divided by the larger brightness factor 3, where β is the smaller brightness factor, C-(3-3)/3
Gn/T 2893.42013
Contrasting colour
A colour that contrasts sharply with the safety colour in order to make the safety colour more conspicuous 3.4
Externally illuminated safety signs
Externally illuminated salety 3.5 Internally illuminated safely sign When necessary, a safety sign illuminated by an internal light source. 3.6 Luminance contrast Luminance contrast The ratio of the contrast 1 in a safety sign to the brightness of the safety color L, where k = l/l [GB/T 1556.2, definition 2.3.147 Luminance factor Under bright conditions, the surface of the sample is smooth [GB/] 1555.2-2008, definition Maintained safely sign The ratio of the brightness of the sign
to the brightness of the fully
radiating or fully transmissive radiator. A sign whose internal lamps are always powered when normal or
emergency operation is required. 3.9
non-maintained safety sign
only visible when the power supply to the normal lighting fails
object colour
the designated colour of the safety sign element, expressed in CIE 2° standard angle observer chromaticity co-ordinates and luminance indices or brightness. 3.11
ordinary material
ordinary malerial
material which neither retroreflects, nor fluoresces or phosphoresces, nor emits light instantaneously nor is it activated by a radioactive source, 3.12
phosphorescen1material
phosphorescent material
material containing a phosphor which stores energy when stimulated by ultraviolet or visible light, and which can emit this energy as light for a certain period of time.
Safety color safetycolour
A color with special properties that is given a safety meaning. [GB/F 15565.2-2098, definition 2.2, 54 requirements
4.1 General
4.1.1 All chromaticity and photometric requirements apply to materials used by the user of the finished product mark GB/T 2893.4—2013
4.1.2 Safety colors and contrast colors of geometric shapes of safety signs, and the provisions of graphic symbols of specific types of safety signs GB/)'2803.12013.
4.1.3 The requirements of this part are based on the (1F2° standard difficult to measure chromaticity specified by CIE:5. 4.1.4 If the requirements of this part involve the color of the sign material under external lighting, the chromaticity and photometric requirements are based on the CIE standard lighting LD65, which is at an angle of 45° to the surface normal and the subtended viewing direction (geometric conditions 45/0) or perpendicular to the surface and all along the direction at 45° to the surface Question observation (geometric conditions 0/45) 4.1.5 The requirements and test methods of this section are for safety signs under illuminated and unilluminated conditions. For information on the color characteristics of external lighting, internal lighting and luminous materials, see Appendix A. In order to achieve the intended effect, safety signs with internal light sources should use external lighting. Safety signs with internal lighting must be "new" (internal light source is powered) or "non-maintained" signs (the sign is illuminated by external lighting when the internal light source is not powered, but the internal light source is powered in an emergency). If the safety sign is designed as a dim sign, it is also necessary to meet the requirements under this condition.
Light-proof safety signs can be used in illuminated and unlit environments. For example, in an emergency, the excited group light material emits light in a certain area. 4.1.6 This section makes provisions based on the color range of each specified color. 4.1.7 For the chromaticity and photometric requirements of safety signs made of ordinary materials, see 4.2 (if the light source is powered on) and the chromaticity and photometric requirements of the internal full-sign, see 4.2.2 (if the internal light source is powered on). For the chromaticity and photometric requirements of the internal full-sign, see 4.2.3 (if the internal light source is powered on). For the chromaticity and photometric requirements of the phosphorescent safety signs under external lighting, see 4.2.3. |tt||If the chromaticity coordinates and/or brightness factor are outside the color range specified in Table 1 for the corresponding safety sign material type when used, or the chromaticity coordinates or brightness or brightness contrast ratio are outside the range specified in Table 2 or Table 8 for the corresponding safety sign type, the material is no longer considered suitable for safety purposes.|tt||For the convenience of the manufacturer in classification, the performance requirements and test methods for the luminous color of phosphorescent materials are given in Appendix P4.2 Object color under external lighting
Safety signs made of ordinary materials
If the object color is tested in accordance with 5.2., the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 1. The brightness factor of each color shall comply with the provisions in Table 1. 4.2.2 Unpowered interior illuminated safety signs under external lighting If the unpowered interior illuminated safety signs are tested in accordance with 5.2., the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 1, and the brightness factor of each color shall comply with the provisions in Table 1. 4.2.3 Phosphorescent safety signs under external lighting If the phosphorescent material substrate or phosphorescent surface is printed with color and tested in accordance with the provisions of 5.2.3, the chromaticity coordinates of each color shall be within the corresponding chromaticity range specified in Table 1, as shown in Figure 2. The brightness factor of each color shall comply with the provisions of Table 1.
C:B/T 2893.4-2C13
1.3 Object color effect of energized internally illuminated safety signs The object color of energized internally illuminated safety signs shall be tested in accordance with the provisions of 5.3. The chromaticity coordinates of the tested part of each color shall be within the corresponding chromaticity range specified in Table 2, as shown in Figure 2. The brightness of each color shall comply with the provisions in Table 2, and the brightness contrast shall comply with the provisions in Table 3. The ratio of the lowest brightness to the highest brightness in white or safety colors shall be greater than 1:5. If the brightness of the safety sign is greater than 109 cd/m, the ratio of the minimum brightness to the maximum brightness of the color shall not be less than 1:1. When using energized internal lighting safety signs under normal lighting conditions, the lighting environment should be suitable for the higher brightness value of the sign for easy recognition. Standards for brightness contrast and contrast ratio of this color. The requirements of this clause shall also apply to non-maintained internal lighting safety signs when the internal light source is energized. Table 1 Color range: Chromaticity coordinates and brightness factors of object colors of ordinary materials, phosphorescent materials and non-energized internal lighting safety signs under external lighting
Corner points of color range
Color range
Phosphorescent yellow-white contrast
CIE standard illuminant DS5
CIE 2 standard chromaticity observer
Note: Examples of safety colors and contrast colors for object colors of ordinary materials are shown in Appendix E. Table 2
Color range
Brightness factor
Color range: Chromaticity coordinates and brightness corners of the color range of the energized internal lighting safety signs
(IE2 standard colorimeter observer
The internal light source is energized,
The external light source
Yao degree cd/m
Color range
. Black is opaque as a contrast color or symbol color. Table 2 (continued)
Corners of the color range
CIE2\standard colorimeter observer
Table 3 Brightness contrast of energized internal lighting safety signs Safety colors
Contrast colors
Brightness contrast
"Black as a contrast color or symbol color is opaque yellow
Note: For the relationship between the safety colors and contrast colors of graphic symbols and their internal photometric relationship, please refer to Appendix D. Green
55 The requirements and test methods in this section are for safety signs in both illuminated and unilluminated conditions. For information on the color characteristics of external lighting, internal lighting and luminous materials, see Appendix A. In order to achieve the intended effect, safety signs with internal light sources should use external lighting. Safety signs with internal lighting must be "new" (internal light source is energized) or "non-maintained" signs (the sign is illuminated externally when the internal light source is not energized, but the internal light source is energized in an emergency). If the safety sign is designed to be a dim sign, it is also necessary to meet the requirements under this condition.
Light-proof safety signs can be used in illuminated and unilluminated environments. For example, in an emergency, the excited luminous material will glow in a certain area.
4.1.6 This section is based on the color of each specified color. The specification specifies the chromaticity and photometric requirements for safety signs made of ordinary materials in 4.1.7 (see 4.2 for the chromaticity and photometric requirements for safety signs made of ordinary materials with energized light sources) and the chromaticity and photometric requirements for safety signs made of ordinary materials in 4.2.2 (see 4.2.2 for the chromaticity and photometric requirements for safety signs made of ordinary materials with energized light sources). The chromaticity and photometric requirements for safety signs made of ordinary materials with energized light sources are as follows: If the color range of the corresponding safety sign material type, or the chromaticity coordinates or brightness or brightness contrast exceeds the range of the corresponding safety sign type specified in Table 2 or Table 8, the material is no longer considered suitable for safety purposes. To facilitate the classification of manufacturers, the performance requirements and test methods for the luminous color of phosphorescent materials are shown in P4.2 Object color under external lighting. Safety signs made of ordinary materials. If the object color is tested in accordance with 5.2., the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 1. Each color The brightness factor shall comply with the provisions in Table 1. 4.2.2 Unpowered interior-illuminated safety signs under external lighting If unpowered interior-illuminated safety signs are tested in accordance with 5.22, the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 1. The brightness factor of each color shall comply with the provisions in Table 1. 4.2.3 Phosphorescent safety signs under external lighting If the phosphorescent material substrate or phosphorescent surface is printed with color, the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 2. The brightness factor of each color shall comply with the provisions in Table 1.
C:B/T 2893.4-2C13
1.3 Object color effect of energized interior-illuminated safety signs The object color of energized interior-illuminated safety signs is tested in accordance with 5.3. The chromaticity coordinates of the tested part of each color shall be within the corresponding color range specified in Table 2, as shown in Figure 2. The brightness of each color shall comply with the provisions in Table 2, and the brightness contrast ratio shall comply with the provisions in Table 3. The ratio of the minimum brightness to the maximum brightness in white or safety colors shall be greater than 1:5. If the brightness of the safety sign is greater than 109cd/m, the ratio of the minimum brightness to the maximum brightness in the color shall not be greater than 1:1. When using energized internal lighting safety signs under normal lighting conditions, in order to facilitate identification, the lighting environment should be suitable for the higher brightness value of the sign. The standards for brightness contrast and contrast ratio of the color should also apply to non-maintained internal lighting safety signs when the internal light source is energized. Table 1 Color range: Chromaticity coordinates and brightness factors of object colors of ordinary materials, phosphorescent materials and unpowered internally illuminated safety signs under external lighting
Corner points of color range
Color range
Phosphorescent yellow-white contrastbzxZ.net
CIE standard illuminant DS5
CIE 2 standard chromaticity observer
Note: See Appendix E for examples of safety colors and contrast colors of object colors of ordinary materials. Table 2
Color range
Brightness factor
Color range: Chromaticity coordinates and brightness corners of the color range of the energized internal lighting safety signs
(IE2 standard colorimeter observer
The internal light source is energized,
The external light source
Yao degree cd/m
Color range
. Black is opaque as a contrast color or symbol color. Table 2 (continued)
Corners of the color range
CIE2\standard colorimeter observer
Table 3 Brightness contrast of energized internal lighting safety signs Safety colors
Contrast colors
Brightness contrast
"Black as a contrast color or symbol color is opaque yellow
Note: For the relationship between the safety colors and contrast colors of graphic symbols and their internal photometric relationship, please refer to Appendix D. Green
55 The requirements and test methods in this section are for safety signs in both illuminated and unilluminated conditions. For information on the color characteristics of external lighting, internal lighting and luminous materials, see Appendix A. In order to achieve the intended effect, safety signs with internal light sources should use external lighting. Safety signs with internal lighting must be "new" (internal light source is energized) or "non-maintained" signs (the sign is illuminated externally when the internal light source is not energized, but the internal light source is energized in an emergency). If the safety sign is designed to be a dim sign, it is also necessary to meet the requirements under this condition.
Light-proof safety signs can be used in illuminated and unilluminated environments. For example, in an emergency, the excited luminous material will glow in a certain area.
4.1.6 This section is based on the color of each specified color. The specification specifies the chromaticity and photometric requirements for safety signs made of ordinary materials in 4.1.7 (see 4.2 for the chromaticity and photometric requirements for safety signs made of ordinary materials with energized light sources) and the chromaticity and photometric requirements for safety signs made of ordinary materials in 4.2.2 (see 4.2.2 for the chromaticity and photometric requirements for safety signs made of ordinary materials with energized light sources). The chromaticity and photometric requirements for safety signs made of ordinary materials with energized light sources are as follows: If the color range of the corresponding safety sign material type, or the chromaticity coordinates or brightness or brightness contrast exceeds the range of the corresponding safety sign type specified in Table 2 or Table 8, the material is no longer considered suitable for safety purposes. To facilitate the classification of manufacturers, the performance requirements and test methods for the luminous color of phosphorescent materials are shown in P4.2 Object color under external lighting. Safety signs made of ordinary materials. If the object color is tested in accordance with 5.2., the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 1. Each color The brightness factor shall comply with the provisions in Table 1. 4.2.2 Unpowered interior-illuminated safety signs under external lighting If unpowered interior-illuminated safety signs are tested in accordance with 5.22, the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 1. The brightness factor of each color shall comply with the provisions in Table 1. 4.2.3 Phosphorescent safety signs under external lighting If the phosphorescent material substrate or phosphorescent surface is printed with color, the chromaticity coordinates of each color shall be within the corresponding color range specified in Table 1, as shown in Figure 2. The brightness factor of each color shall comply with the provisions in Table 1.
C:B/T 2893.4-2C13
1.3 Object color effect of energized interior-illuminated safety signs The object color of energized interior-illuminated safety signs is tested in accordance with 5.3. The chromaticity coordinates of the tested part of each color shall be within the corresponding color range specified in Table 2, as shown in Figure 2. The brightness of each color shall comply with the provisions in Table 2, and the brightness contrast ratio shall comply with the provisions in Table 3. The ratio of the minimum brightness to the maximum brightness in white or safety colors shall be greater than 1:5. If the brightness of the safety sign is greater than 109cd/m, the ratio of the minimum brightness to the maximum brightness in the color shall not be greater than 1:1. When using energized internal lighting safety signs under normal lighting conditions, in order to facilitate identification, the lighting environment should be suitable for the higher brightness value of the sign. The standards for brightness contrast and contrast ratio of the color should also apply to non-maintained internal lighting safety signs when the internal light source is energized. Table 1 Color range: Chromaticity coordinates and brightness factors of object colors of ordinary materials, phosphorescent materials and unpowered internally illuminated safety signs under external lighting
Corner points of color range
Color range
Phosphorescent yellow-white contrast
CIE standard illuminant DS5
CIE 2 standard chromaticity observer
Note: See Appendix E for examples of safety colors and contrast colors of object colors of ordinary materials. Table 2
Color range
Brightness factor
Color range: Chromaticity coordinates and brightness corners of the color range of the energized internal lighting safety signs
(IE2 standard colorimeter observer
The internal light source is energized,
The external light source
Yao degree cd/m
Color range
. Black is opaque as a contrast color or symbol color. Table 2 (continued)
Corners of the color range
CIE2\standard colorimeter observer
Table 3 Brightness contrast of energized internal lighting safety signs Safety colors
Contrast colors
Brightness contrast
"Black as a contrast color or symbol color is opaque yellow
Note: For the relationship between the safety colors and contrast colors of graphic symbols and their internal photometric relationship, please refer to Appendix D. Green
53 Object color effect of energized internally illuminated safety signs Object color of energized internally illuminated safety signs shall be tested in accordance with the provisions of 5.3. The color quality of the test part of each color shall be within the corresponding color range specified in Table 2, as shown in Figure 2. The brightness of each color shall comply with the provisions in Table 2, and the brightness contrast shall comply with the provisions in Table 3. The ratio of the lowest brightness to the highest brightness in white or safety colors shall be greater than 1:5. If the brightness of the safety sign is greater than 109cd/m, the ratio of the lowest brightness to the highest brightness in the color shall not be greater than 1:1. When using energized internally illuminated safety signs under normal lighting conditions, in order to facilitate identification, the lighting environment should be suitable for the higher brightness value of the sign. The standards for brightness contrast and contrast ratio of the case color. The requirements of this clause shall also apply to non-maintained internally illuminated safety signs when the internal light source is energized. Table 1 Color range: Chromaticity coordinates and brightness factors of object colors of ordinary materials, phosphorescent materials and unpowered internally illuminated safety signs under external lighting
Corner points of color range
Color range
Phosphorescent yellow-white contrast
CIE standard illuminant DS5
CIE 2 standard chromaticity observer
Note: See Appendix E for examples of safety colors and contrast colors of object colors of ordinary materials. Table 2
Color range
Brightness factor
Color range: Chromaticity coordinates and brightness corners of the color range of the energized internal lighting safety signs
(IE2 standard colorimeter observer
The internal light source is energized,
The external light source
Yao degree cd/m
Color range
. Black is opaque as a contrast color or symbol color. Table 2 (continued)
Corners of the color range
CIE2\standard colorimeter observer
Table 3 Brightness contrast of energized internal lighting safety signs Safety colors
Contrast colors
Brightness contrast
"Black as a contrast color or symbol color is opaque yellow
Note: For the relationship between the safety colors and contrast colors of graphic symbols and their internal photometric relationship, please refer to Appendix D. Green
53 Object color effect of energized internally illuminated safety signs Object color of energized internally illuminated safety signs shall be tested in accordance with the provisions of 5.3. The color quality of the test part of each color shall be within the corresponding color range specified in Table 2, as shown in Figure 2. The brightness of each color shall comply with the provisions in Table 2, and the brightness contrast shall comply with the provisions in Table 3. The ratio of the lowest brightness to the highest brightness in white or safety colors shall be greater than 1:5. If the brightness of the safety sign is greater than 109cd/m, the ratio of the lowest brightness to the highest brightness in the color shall not be greater than 1:1. When using energized internally illuminated safety signs under normal lighting conditions, in order to facilitate identification, the lighting environment should be suitable for the higher brightness value of the sign. The standards for brightness contrast and contrast ratio of the case color. The requirements of this clause shall also apply to non-maintained internally illuminated safety signs when the internal light source is energized. Table 1 Color range: Chromaticity coordinates and brightness factors of object colors of ordinary materials, phosphorescent materials and unpowered internally illuminated safety signs under external lighting
Corner points of color range
Color range
Phosphorescent yellow-white contrast
CIE standard illuminant DS5
CIE 2 standard chromaticity observer
Note: See Appendix E for examples of safety colors and contrast colors of object colors of ordinary materials. Table 2
Color range
Brightness factor
Color range: Chromaticity coordinates and brightness corners of the color range of the energized internal lighting safety signs
(IE2 standard colorimeter observer
The internal light source is energized,
The external light source
Yao degree cd/m
Color range
. Black is opaque as a contrast color or symbol color. Table 2 (continued)
Corners of the color range
CIE2\standard colorimeter observer
Table 3 Brightness contrast of energized internal lighting safety signs Safety colors
Contrast colors
Brightness contrast
"Black as a contrast color or symbol color is opaque yellow
Note: For the relationship between the safety colors and contrast colors of graphic symbols and their internal photometric relationship, please refer to Appendix D. Green
5
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