What do the numbers on bulk containers represent?

The numbers on bulk containers primarily serve as identification codes for the materials contained within. These codes are critical for ensuring safety and compliance when transporting hazardous materials. They help responders, handlers, and regulatory authorities quickly ascertain what substances are being transported, allowing for appropriate measures to be taken in case of an emergency or during the transportation process.

Identification codes typically correspond to a specific chemical or substance, offering essential information about its properties, potential hazards, and handling requirements. This is especially important for hazardous materials, as understanding the nature of the contents directly influences safety protocols and emergency response strategies.

In contrast, the weight of the containers, their destination, or their volume do not provide the necessary information about the material’s identity, which makes identification codes fundamentally crucial for transport safety and regulatory compliance.