GB 14778-202 General rules of coloured light for safety English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 13.100
CCS C 65
National Standard of the People’s Republic of China
GB/T 14778-2025
Replaces GB/T 14778-2008
General rules of coloured light for safety
安全色光通用规则
(English Translation)
Issue date: 2025-10-05 Implementation date: 2026-05-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Coloured light for safety identification matters and usage scenarios
5 Color area range
6 Requirements for the use of coloured light for safety
Annex A (Informative) Color range, color boundary, intersection point color coordinates of color range for coloured light for safety
General rules of coloured light for safety
1 Scope
This document specifies the matters and usage scenarios of coloured light for safety representation, the range of color areas, and the requirements for the use of coloured light for safety.
This document is applicable to coloured light for safety used in production and operation units as well as public places.
This document is not applicable to colored light used in aviation, navigation, or inland waterway transportation, and does not apply to reflected light.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 2894 Safety colours and safety signs
GB/T 5698 Glossary of color terms
3 Terms and definitions
For the purpose of this document, the terms and definitions given in GB/T 5698 apply.
3.1
coloured light
visible light that generates sensations of brightness and color in the human visual system
Note: Includes steady-state light and flash.
3.2
coloured light for safety
coloured light that conveys safety-related information
Note: Includes four colors of light: red, yellow, green and blue. White light is the auxiliary color light.
4. Coloured light for safety identification matters and usage scenarios
4.1 Red light
4.1.1 Expressed matters
Coloured light indicating prohibition, stop, danger, emergency, fire, etc.
4.1.2 Usage scenarios
Used in places or facilities where coloured light is used in various prohibition signs, traffic prohibition signs, fire fighting equipment signs, mechanical stop buttons, brakes and parking devices.
Note: For example, the coloured light of the sign prohibiting entry into hazardous areas; The coloured light of the general signal light "stop"; Coloured light indicating prohibition, danger, etc. during road construction; The coloured light of ordinary vehicle taillights; The color light of night signs for vehicles carrying dangerous goods such as gunpowder; The coloured light of the train taillights in the tunnel; The coloured light of hanging sign lights in dangerous areas inside the tunnel; Coloured light indicating the location of the emergency stop button; When reporting emergency situations and seeking help, use colored light to emit signals; The coloured light used to indicate the location of fire hydrants, fire extinguishers, fire alarm equipment, and other firefighting equipment.
4.2 Yellow light
4.2.1 Expressed matters
A coloured light that indicates a reminder of attention, warning, etc.
4.2.2 Usage scenarios
Used in places or facilities where coloured light needs to be used to remind personnel of attention and other matters.
Note: For example, the coloured light of "warning" of road traffic lights; "Attention" coloured light for general signals; The coloured light indicating the direction sign light of the train at the entrance.
4.3 Green Light
4.3.1 Expressed matters
Coloured light indicating permission, safety, prompt, rescue, etc.
4.3.2 Usage scenarios
Use in places or facilities that require the use of coloured light for permission, safety, prompt, and rescue matters.
Note: For example, the coloured light used in the safety passages of workshops, traffic signs for pedestrians and vehicles, first aid stations and ambulance stations, emergency evacuation passages, shelters in tunnels and other safety protection equipment sign lights; The coloured light used by the device/machine start button.
4.4 Blue Light
4.4.1 Expressed matters
Coloured light indicating guidance, instruction matters, etc.
4.4.2 Usage scenarios
Used in places or facilities where coloured light is used for various instruction signs and other matters.
Note: For example, the coloured light indicating the direction and location of the parking lot.
4.5 White light
4.5.1 Expressed matters
White light is the auxiliary coloured light.
4.5.2 Usage scenarios
Used for text, arrows and other information to indicate direction and where to go.
Note: For example, use the text and arrow of this colour sign to achieve the purpose of "guidance".
5 Colour area range
The coloured light for safety shall be clearly identified within the designed distance and shall comply with the provisions of GB 2894. Annex A gives the chromaticity area range, chromaticity boundary, and intersection chromaticity coordinates of chromaticity area range of coloured light for safety.
Standard
GB 14778-2025 General rules of coloured light for safety (English Version)
GB 14778-202 General rules of coloured light for safety English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 13.100
CCS C 65
National Standard of the People’s Republic of China
GB/T 14778-2025
Replaces GB/T 14778-2008
General rules of coloured light for safety
安全色光通用规则
(English Translation)
Issue date: 2025-10-05 Implementation date: 2026-05-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Coloured light for safety identification matters and usage scenarios
5 Color area range
6 Requirements for the use of coloured light for safety
Annex A (Informative) Color range, color boundary, intersection point color coordinates of color range for coloured light for safety
General rules of coloured light for safety
1 Scope
This document specifies the matters and usage scenarios of coloured light for safety representation, the range of color areas, and the requirements for the use of coloured light for safety.
This document is applicable to coloured light for safety used in production and operation units as well as public places.
This document is not applicable to colored light used in aviation, navigation, or inland waterway transportation, and does not apply to reflected light.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 2894 Safety colours and safety signs
GB/T 5698 Glossary of color terms
3 Terms and definitions
For the purpose of this document, the terms and definitions given in GB/T 5698 apply.
3.1
coloured light
visible light that generates sensations of brightness and color in the human visual system
Note: Includes steady-state light and flash.
3.2
coloured light for safety
coloured light that conveys safety-related information
Note: Includes four colors of light: red, yellow, green and blue. White light is the auxiliary color light.
4. Coloured light for safety identification matters and usage scenarios
4.1 Red light
4.1.1 Expressed matters
Coloured light indicating prohibition, stop, danger, emergency, fire, etc.
4.1.2 Usage scenarios
Used in places or facilities where coloured light is used in various prohibition signs, traffic prohibition signs, fire fighting equipment signs, mechanical stop buttons, brakes and parking devices.
Note: For example, the coloured light of the sign prohibiting entry into hazardous areas; The coloured light of the general signal light "stop"; Coloured light indicating prohibition, danger, etc. during road construction; The coloured light of ordinary vehicle taillights; The color light of night signs for vehicles carrying dangerous goods such as gunpowder; The coloured light of the train taillights in the tunnel; The coloured light of hanging sign lights in dangerous areas inside the tunnel; Coloured light indicating the location of the emergency stop button; When reporting emergency situations and seeking help, use colored light to emit signals; The coloured light used to indicate the location of fire hydrants, fire extinguishers, fire alarm equipment, and other firefighting equipment.
4.2 Yellow light
4.2.1 Expressed matters
A coloured light that indicates a reminder of attention, warning, etc.
4.2.2 Usage scenarios
Used in places or facilities where coloured light needs to be used to remind personnel of attention and other matters.
Note: For example, the coloured light of "warning" of road traffic lights; "Attention" coloured light for general signals; The coloured light indicating the direction sign light of the train at the entrance.
4.3 Green Light
4.3.1 Expressed matters
Coloured light indicating permission, safety, prompt, rescue, etc.
4.3.2 Usage scenarios
Use in places or facilities that require the use of coloured light for permission, safety, prompt, and rescue matters.
Note: For example, the coloured light used in the safety passages of workshops, traffic signs for pedestrians and vehicles, first aid stations and ambulance stations, emergency evacuation passages, shelters in tunnels and other safety protection equipment sign lights; The coloured light used by the device/machine start button.
4.4 Blue Light
4.4.1 Expressed matters
Coloured light indicating guidance, instruction matters, etc.
4.4.2 Usage scenarios
Used in places or facilities where coloured light is used for various instruction signs and other matters.
Note: For example, the coloured light indicating the direction and location of the parking lot.
4.5 White light
4.5.1 Expressed matters
White light is the auxiliary coloured light.
4.5.2 Usage scenarios
Used for text, arrows and other information to indicate direction and where to go.
Note: For example, use the text and arrow of this colour sign to achieve the purpose of "guidance".
5 Colour area range
The coloured light for safety shall be clearly identified within the designed distance and shall comply with the provisions of GB 2894. Annex A gives the chromaticity area range, chromaticity boundary, and intersection chromaticity coordinates of chromaticity area range of coloured light for safety.
