What is used to inquire on the chemical name in the Hazardous Material File?

The correct method for inquiring about the chemical name in the Hazardous Material File is through the 4 Digit Universal Number. This number is specifically designed to provide a standardized reference for hazardous materials, allowing for clear and effective communication and identification within databases such as the Hazardous Material File.

In the context of hazardous materials, the 4 Digit Universal Number is essential for verifying the identity of chemicals and ensuring safety protocols are appropriately followed. This system is particularly useful for first responders and those in the field when they need to quickly access potentially life-saving information about various substances.

The other options, like the Chemical Abstract Number or CAS Number, are related to chemical identification but are not utilized specifically within the Hazardous Material File for inquiries. The Safety Material Number also does not serve the same purpose of direct inquiry for chemical names in the Hazardous Material File. Therefore, the 4 Digit Universal Number is the appropriate choice for identifying and inquiring about chemicals in this specific database.