Diamond Hazard Sign

The top square is red and describes flammability hazards the leftmost square is blue and describes health hazards and the rightmost square is yellow and describes reactivity hazards.

Diamond hazard sign. Depending on the particular type of explosive the sign gets more specific with another number after the one which indicates the division within the class. Signs for explosives are orange diamond shaped signs with a number 1. In europe this type of sign is used if there are no more specific signs to denote a particular hazard. The nfpa diamond consists of four color coded fields.

Now you can drive around your neighborhood and get a glimpse into what is stored in all of the buildings. The diamond is divided into four color coded squares each which conveys information about specific hazards present in the area. A value of 0 means that the material poses essentially no hazard whereas a rating of 4 indicates extreme. The clp hazard pictograms are very similar to those used in the old labelling system and appear in the shape of a diamond with a distinctive red border and white background.

On roadside warning signs an exclamation mark is often used to draw attention to a generic warning of danger hazards and the unexpected. Blue red yellow and white. This standard presents a simple readily recognized and easily understood system of markings commonly referred to as the nfpa hazard diamond that provides an immediate general sense of the hazards of a material and the severity of these hazards as they relate to emergency response. The blue red and yellow fields which represent health hazard flammability and reactivity respectively use a numbering scale ranging from 0 to 4.

What do the big diamond shaped signs with red yellow and blue diamonds mean. Nfpa diamond signs are available in a large variety of sizes and materials such as highly durable 040 rust free aluminum 055 polyethylene plastic and 030 magnetic sheeting. One or more pictograms might appear on the labelling of a single chemical. You may also see a w with a bar through it meaning use no water or the radiation hazard symbol for radioactive materials.

When used for traffic signs it is accompanied by a supplementary sign describing the hazard usually mounted under the exclamation mark.