GB 2893-2008 English PDF

GB 2893-2008: Safety colours
Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Newer version: (Replacing this standard) GB/T 2893.1-2013
Get Quotation: Click GB 2893-2008 (Self-service in 1-minute)
Historical versions (Master-website): GB/T 2893.1-2013
Preview True-PDF (Reload/Scroll-down if blank)


GB 2893-2008
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 01.080.01
A 26
Replacing GB 2893-2001
Safety colors
(ISO 3864-1:2002, Graphical symbols - Safety colors and safety signs - Part
1: Design principles for safety signs in workplaces and public areas, MOD)
ISSUED ON: DECEMBER 11, 2008
IMPLEMENTED ON: OCTOBER 01, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Color characterization ... 7 
5 Technical requirements ... 8 
6 Measurement methods ... 11 
Appendix A (Normative) Guidelines for the use of safety colors ... 14 
A.1 Safety color ... 14 
A.2 Alternated stripes of safety color and contrast color ... 14 
A.3 Requirements for use ... 16 
A.4 Inspection and repair ... 16 
Safety colors
1 Scope
This standard specifies the test method and usage method for the color and
safety color which convey safety information.
This standard applies to the surface colors of the signal and signs which are
used in the public places, production and business organizations, transportation,
construction, warehousing and other industries, firefighting and other fields.
This standard does not apply to lighting signals as well as colors used in
navigation, inland navigation, other purposes.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB 2894 Safety signs and guideline for the use
GB/T 3978 Standard illuminants and geometric conditions
GB/T 3979 Methods for the measurement of object color
GB 5768 Road traffic signs and markings
GB 13495 Fire safety signs
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Safety color
The color that conveys the meaning of the safety information, including red,
blue, yellow, green.
3.8
Retroreflection
The reflection that the reflected light returns from the opposite direction of
the incident light. This property is maintained when the direction of incident
light varies over a wide range.
3.9
Coefficient of luminous intensity
The result of dividing the luminous intensity I of the retroreflection in the
direction of observation by the illuminance E┻ which is projected onto the
retroreflector and falls onto a plane which is perpendicular to the direction of
incidence, that is:
Where:
R - Coefficient of luminous intensity, in candelas per lux (cd·lx-1);
I - Luminous intensity, in candelas (cd);
E┻ - Luminance in perpendicular direction, in lux (lx).
3.10
Coefficient of retroreflection
The result of dividing the coefficient of retroreflective luminous intensity R by
its area A, that is:
Where:
R' - Coefficient of retroreflection, in candela per lux square (cd·lx-1·m-2);
R - Coefficient of luminous intensity, in candelas per lux (cd·lx-1);
4.2.2 White
White is used as the background color for the red, blue, green in the safety
signs. It may also be used for text and graphic symbols of safety signs.
4.3 Alternated stripes between safety color and contrast color
The alternated stripes are equal-width stripes and are inclined at about 45°.
4.3.1 Red-white alternated stripes
Indicates a safety mark that prohibits or prompts the location of fire-fighting
equipment and facilities.
4.3.2 Yellow-black alternated stripes
A safety mark indicating a dangerous location.
4.3.3 Blue-white alternated stripes
A safety mark which indicates instructions and delivers the information that it
must follow the provisions.
4.3.4 Green-white alternated stripes
A safety mark that represents a safe environment.
5 Technical requirements
The chromaticity range of the safety color shall be as shown in Figure 1 and
Table 2.
The range of safety color’s chromaticity that meets the exact color requirements
shall comply with the requirements of Table 3.
The contrast color and luminance factor of the phosphor color shall be as shown
in Figure 1 and Table 4.
The minimum coefficient of retroreflection of those which contains the
retroreflective material is as shown in Table 5.
For transillumination materials, the x and y coordinates shall be within the color
range given in Table 2; the brightness contrast shall be within the range given
in Table 6.
If meeting the following conditions, it is considered that the safety color does
not meet the requirements:
Appendix A
(Normative)
Guidelines for the use of safety colors
A.1 Safety color
A.1.1 Red
Various prohibition signs (refer to GB 2894); traffic prohibition signs (refer to GB
5768); firefighting equipment signs (refer to GB 13495); mechanical stop button,
brake, control handle of parking device; exposed parts of mechanical
equipment’s rotating parts; scale of the limit position on the instrument dial;
various danger signal flags, etc.
A.1.2 Yellow
Various warning signs (refer to GB 2894); road traffic signs and warning signs
in the markings (refer to GB 5768); warning signal flags, etc.
A.1.3 Blue
Various instruction signs (refer to GB 2894); road traffic signs and indication
marks in the markings (refer to GB 5768).
A.1.4 Green
Various prompt signs (refer to GB 2894); machine start button; safety signal
flag; first aid station, evacuation channel, safe haven, emergency shelter, etc.
A.2 Alternated stripes of safety color and contrast color
A.2.1 Red-white alternated stripes
It is applied to the protective railings and isolation piers used in transportation
and other aspects; the stripe of the LPG car tanker; the ribbon on the sign-post
of the fixed prohibition sign (as shown in Figure A.1).
A.2.2 Yellow-black alternated stripes
It is applied to parts of various machines which are easy to collide when they
work or move, such as the extension leg of the mobile crane, the end of the
boom, the lifting hook and the counterweight; the pressing device of the
shearing machine; the slider of the punching machine, etc., which has
GB 2893-2008
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 01.080.01
A 26
Replacing GB 2893-2001
Safety colors
(ISO 3864-1:2002, Graphical symbols - Safety colors and safety signs - Part
1: Design principles for safety signs in workplaces and public areas, MOD)
ISSUED ON: DECEMBER 11, 2008
IMPLEMENTED ON: OCTOBER 01, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Color characterization ... 7 
5 Technical requirements ... 8 
6 Measurement methods ... 11 
Appendix A (Normative) Guidelines for the use of safety colors ... 14 
A.1 Safety color ... 14 
A.2 Alternated stripes of safety color and contrast color ... 14 
A.3 Requirements for use ... 16 
A.4 Inspection and repair ... 16 
Safety colors
1 Scope
This standard specifies the test method and usage method for the color and
safety color which convey safety information.
This standard applies to the surface colors of the signal and signs which are
used in the public places, production and business organizations, transportation,
construction, warehousing and other industries, firefighting and other fields.
This standard does not apply to lighting signals as well as colors used in
navigation, inland navigation, other purposes.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB 2894 Safety signs and guideline for the use
GB/T 3978 Standard illuminants and geometric conditions
GB/T 3979 Methods for the measurement of object color
GB 5768 Road traffic signs and markings
GB 13495 Fire safety signs
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Safety color
The color that conveys the meaning of the safety information, including red,
blue, yellow, green.
3.8
Retroreflection
The reflection that the reflected light returns from the opposite direction of
the incident light. This property is maintained when the direction of incident
light varies over a wide range.
3.9
Coefficient of luminous intensity
The result of dividing the luminous intensity I of the retroreflection in the
direction of observation by the illuminance E┻ which is projected onto the
retroreflector and falls onto a plane which is perpendicular to the direction of
incidence, that is:
Where:
R - Coefficient of luminous intensity, in candelas per lux (cd·lx-1);
I - Luminous intensity, in candelas (cd);
E┻ - Luminance in perpendicular direction, in lux (lx).
3.10
Coefficient of retroreflection
The result of dividing the coefficient of retroreflective luminous intensity R by
its area A, that is:
Where:
R' - Coefficient of retroreflection, in candela per lux square (cd·lx-1·m-2);
R - Coefficient of luminous intensity, in candelas per lux (cd·lx-1);
4.2.2 White
White is used as the background color for the red, blue, green in the safety
signs. It may also be used for text and graphic symbols of safety signs.
4.3 Alternated stripes between safety color and contrast color
The alternated stripes are equal-width stripes and are inclined at about 45°.
4.3.1 Red-white alternated stripes
Indicates a safety mark that prohibits or prompts the location of fire-fighting
equipment and facilities.
4.3.2 Yellow-black alternated stripes
A safety mark indicating a dangerous location.
4.3.3 Blue-white alternated stripes
A safety mark which indicates instructions and delivers the information that it
must follow the provisions.
4.3.4 Green-white alternated stripes
A safety mark that represents a safe environment.
5 Technical requirements
The chromaticity range of the safety color shall be as shown in Figure 1 and
Table 2.
The range of safety color’s chromaticity that meets the exact color requirements
shall comply with the requirements of Table 3.
The contrast color and luminance factor of the phosphor color shall be as shown
in Figure 1 and Table 4.
The minimum coefficient of retroreflection of those which contains the
retroreflective material is as shown in Table 5.
For transillumination materials, the x and y coordinates shall be within the color
range given in Table 2; the brightness contrast shall be within the range given
in Table 6.
If meeting the following conditions, it is considered that the safety color does
not meet the requirements:
Appendix A
(Normative)
Guidelines for the use of safety colors
A.1 Safety color
A.1.1 Red
Various prohibition signs (refer to GB 2894); traffic prohibition signs (refer to GB
5768); firefighting equipment signs (refer to GB 13495); mechanical stop button,
brake, control handle of parking device; exposed parts of mechanical
equipment’s rotating parts; scale of the limit position on the instrument dial;
various danger signal flags, etc.
A.1.2 Yellow
Various warning signs (refer to GB 2894); road traffic signs and warning signs
in the markings (refer to GB 5768); warning signal flags, etc.
A.1.3 Blue
Various instruction signs (refer to GB 2894); road traffic signs and indication
marks in the markings (refer to GB 5768).
A.1.4 Green
Various prompt signs (refer to GB 2894); machine start button; safety signal
flag; first aid station, evacuation channel, safe haven, emergency shelter, etc.
A.2 Alternated stripes of safety color and contrast color
A.2.1 Red-white alternated stripes
It is applied to the protective railings and isolation piers used in transportation
and other aspects; the stripe of the LPG car tanker; the ribbon on the sign-post
of the fixed prohibition sign (as shown in Figure A.1).
A.2.2 Yellow-black alternated stripes
It is applied to parts of various machines which are easy to collide when they
work or move, such as the extension leg of the mobile crane, the end of the
boom, the lifting hook and the counterweight; the pressing device of the
shearing machine; the slider of the punching machine, etc., which has