Safety sign Warning signs General sign Safety signs

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		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.

Size of safety marks

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

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