Which item is NOT a source to determine the hazmat name located in a facility?

• A. DOT Emergency Response Guidebook (ERG)
• B. Labels
• C. MSDS
• D. Temperature log

Answer: (D)

The key idea is using sources that actually identify the material. Labels on containers and the Safety Data Sheet (MSDS/SDS) provide the exact hazmat name or enough information to determine it. The DOT Emergency Response Guidebook is also used to identify hazmats in an emergency by looking up the material name or ID.

A temperature log, on the other hand, is kept to track how temperatures have varied over time—it's about monitoring conditions, not identifying what the material is. It doesn’t reveal the hazmat name, so it isn’t a source for determining the material’s identity.

So, the item that does not help determine the hazmat name is the temperature log.