symbol, UN hazard class number, color, UN identification number
The DOT hazard classification system can be used to identify acute hazards.
It is a DOT hazardous materials placard indicating compressed oxygen.
The DOT hazardous materials placard for organic peroxides may be - an all-yellow diamond shape with "ORGANIC PEROXIDE" and "5.2" lettering, or - the revised DOT placard which is red on top and yellow on the bottom, with a stylized flame in the red area.
The Dangerous When Wet placard is a square on point (or diamond) placard with white markings on a blue background. The words "Dangerous When Wet are printed across the middle, with a drawing of a flame centered in the upper corner, and the numeral four (4) in the bottom corner to indicate the Hazard Class.
It is a DOT hazmat placard meaning "compressed oxygen."
color of the label or placard
How are the four sections maked
the declaration has four major sections.
The Cartesian graph is divided into four sections called quadrants.
This is the UN Identification Number.
four
The four sections of a symphony orchestra are woodwinds, brass, strings, and percussion.