If an inspector finds a new unknown material during a routine check, what should be prioritized?

The best course of action when an inspector encounters a new unknown material during a routine check is to prioritize taking a sample for testing. This step is crucial because it allows for proper identification and assessment of the material's properties and potential hazards. Understanding what the substance is will provide insights into how it should be handled, whether it poses any risks to health or the environment, and what specific regulations or guidelines need to be followed.

While tracing the origins of the material can be important for context, without first identifying what the material is, it is challenging to determine its source and assess the associated risks. Taking a sample ensures that the material can be accurately tested in a lab setting, which will inform all subsequent actions, including containment or remediation strategies if needed. Cleaning the area without confirming what the substance is could potentially spread contaminants or lead to unsafe handling practices. Additionally, ignoring the material solely based on the assumption that it is non-flammable overlooks other critical safety concerns that may arise from unknown substances. Thus, the priority should always be on identifying the unknown material to ensure the safety of all involved.