Safety sign Warning signs General sign Safety signs

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
	Stop	Stop sign Emergency stop equipment sign Prohibition sign	White
	Enforce to follow	Enforce to wear personal protection equipments Mandatory sign	White
	Indicate safety status	Fire exit Emergency exit Emergency washing shower First aid unit Rescue unit General information mark showing the composition status	White
	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:

Red color is used for the equipment concerning the fire protection, fire extinguish equipment and locations as well.
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.

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

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.
Figure’s symbol shall be shown at center of the mark without over-writing the cross band of “Prohibition sign”
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		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		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		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		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

Format of supplementary marks, rectangular or square shape.
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.
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.
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

Custom height of the mark plate (a)	Diameter or height of the mark (b)	Height of characters in supplementary marks
75	60	5.0
100	80	6.6
150	120	10.0
225	180	15.0
300	240	20.0
600	480	40.0
750	600	50.0
900	720	60.0
1200	960	80.0

	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

Health 4-Deadly dangerous 3-Extreme dangerous 2-Dangerous 1-Sligth dangerous 0-Safety		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 -Do not mix with water

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Safety color and safety mark

Table 1 : Color for safety and intersect color

Formats of safety mark

Table 2 : Formats of safety mark

Category

Format

Color

Remark

Supplementary marks

Size of safety marks

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

Custom height of

Diameter or height of

Height of characters in

Flammability

Health

Reactivity

Special information

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