If you remain unsure about the contents after testing, what should you do?

• A. Consult a safety data sheet (SDS) along with your agency's policies and procedures
• B. Guess based on container color
• C. Ignore the uncertainty
• D. Open the container to confirm

Answer: (A)

When you’re unsure about a substance after testing, the safest and most appropriate step is to consult the Safety Data Sheet for the chemical and follow your agency’s policies and procedures. The SDS contains the exact hazard classifications, required personal protective equipment, spill and exposure controls, first aid instructions, and emergency response guidance. It also outlines what to do if identification remains uncertain, including isolating the material and involving a supervisor or trained personnel. Relying on container color isn’t reliable, as labels can be incorrect or misleading. Opening the container to confirm can release harmful vapors or contaminants and endanger staff and inmates, as well as contaminate evidence. Following the SDS and agency procedures provides a clear, standardized, and safe course of action.