Safety sign Warning signs General sign Safety signs

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Safety color and safety mark

Table 1 : Color for safety and intersect color

Color for safety Meaning Application examples Intersect color
Safety Signs : Safety Sign
Stop
  • Stop sign
  • Emergency stop equipment sign
  • Prohibition sign
White
Safety Signs : Mandatory Sign
Enforce to follow
  • Enforce to wear personal protection equipments
  • Mandatory sign
White

Safety Signs : Safe Condition Sign

Indicate safety
status
  • Fire exit
  • Emergency exit
  • Emergency washing shower
  • First aid unit
  • Rescue unit
  • General information mark showing the composition status
White

Safety Signs : Warnings Sign

Aware of danger
  • Indicate of danger (such as fire, explosive material, radioactive material, hazardous material, etc.)
  • Indicate of danger zone, dangerous passageway, obstruction, warning sign
Black

Remark:

  1. Red color is used for the equipment concerning the fire protection, fire extinguish equipment and locations as well.
  2. Sparking red color can be used instead of yellow, however, it cannot be applied as yellow used with safety mark as shown in Table 2. This sparking red color can be seen outstanding especially in dark circumstance.
Safety sign : Safety color

Example for the using of safety color and intersect color

Remark: Area of yellow shall be at least 50% of the total area of mark.

Formats of safety mark

  1. Format of safety mark and color shall be classified into 4 categories according to the purpose of mark’s indication as shown in Table 2.
  2. Figure’s symbol shall be shown at center of the mark without over-writing the cross band of “Prohibition sign”
  3. In case there is no any suitable figure’s symbol to express the required mark, any general mark for the safety mark of each type can be used in conjunction with the supplementary marks.

Table 2 : Formats of safety mark

Category Format Color Remark
Prohibition Sign Safety Sign : Prohibition Sign Background color : White
Color of strip along circel border and cross strip : Red
Color of figure’s symbol : Black
Area of red color must be at least 35% of the total area of mark.
Mandatory sign Safety Sign : Mandatory Sign Background color : Blue
Color of figure’s symbol : White
Area of blue color must be at least 50% of the total area of mark.
General information mark concerning safety status Safety Sign : Safe Condition Sign Background color : Green
Color of figure’s symbol : White
Area of green color must be at least 50% of the total area of mark.
Rectangular shape can be used as well.
Warning sign Safety Sign : Warning Sign Background color : Yellow
Color of strip along border :BlackColor of figure’s symbol : Black
Area of yellow color must be at least 50% of the total area of mark.

Supplementary marks

  1. Format of supplementary marks, rectangular or square shape.
  2. Background color must be similar to safety color, and the text color must be intersect color as indicated in Table 1, or white shall be used as background color while black shall be used as text color.
  3. The characters used in the text, spacing between the characters, shall not be different more than 10% /format of the characters must be plain type without shadow or style /width of characters must not be less than 70% of its height.
  4. Show the supplementary mark under the safety mark.

Remark : Table 1, 2 are referred from the Thai Industrial Standard, TIS. 635 Vol. 1 to 2-2529, Safety colors and safety marks, Thai Industrial Standards Institute, Ministry of Industry.

Size of safety marks

Table 3 : Size of the safety marks and the characters used in supplementary marks

Safety Signs : Prohibition Sign
Safety Signs : Mandatory Sign
Safety Signs : Safe Condition Sign
Safety Signs : Warning Sign

ความสูงพิกัดของ แผ่นเครื่องหมาย (a)Diameter or height of the mark (b)Height of characters in supplementary marks
75605.0
100806.6
15012010.0
22518015.0
30024020.0
60048040.0
75060050.0
90072060.0
120096080.0
Safety Signs : Toxic Sign
Flammability

Flash Point
4-lower than 22° C
3-lower than 38° C
2-lower than 93° C
1-higher than 93° C
0-Incombustible

Reactivity

4-Explosive
3-Heat and impact can cause explosion
2-Strong chemical reaction
1-Unstable if contact with heat
0-Stable

Special information

OXY-Oxidize
ACID-Acid
COR-Corrosive
ALK-Alkaline

NoWater-Do not mix with water

Health

4-Deadly dangerous
3-Extreme dangerous
2-Dangerous
1-Sligth dangerous
0-Safety