Hazchem is a warning plate system that is commonly used in Australia, Malaysia, New Zealand and the United Kingdom. It is used for vehicles transporting hazardous substances, as a warning sign.
Hazardous chemicals
its a short version for hazzardous chemicals
It means Hazardous Chemicals
Caustic Soda Liqour
A system of symbols and rituals can be defined as a religion. Different symbols and rituals are used in the various religions that are found in the world.
I think it might be 2
Corrosive
It is not known where the symbols in the Egyptian system were - probably in the minds of their mathematicians.
There are 16 symbols.
1. Toxic - a picture of a scull 2. Flammable - a picture of a flame 3. Corrosive - two test tubes with liquid spilling on an hand and a bench 4. Radioactive - a picture of the nuclear symbol
Yes, Hindu-Arabic system have only 9 symbols.