Hazard symbols give information about chemicals and materials. ... Some chemicals are harmful, poisonous or toxic. Even sniffing a chemical can be dangerous. Image caption, ...

Hazard symbols are the same all over the world. Before 2017, symbols looked different in many countries, which wasn’t helpful for moving chemicals around the world. Bunsen burners are named ...

Posted: January 24, 2007: Winners of nanotechnology hazard symbol contest announced (Nanowerk News) An estimated 30,000 people gathered at the World Social Forum in Nairobi this week where ...