Which practice helps ensure safe labeling and segregation of hazardous materials in storage?

• A. Storing hazardous materials by class and labeling correctly.
• B. Keeping all containers unlabeled.
• C. Mixing incompatible materials.
• D. Storing near ignition sources.

Answer: (B)

Proper labeling and segregation of hazardous materials in storage hinges on organizing by hazard class and ensuring every container is clearly labeled. When materials are grouped by class and labeled correctly, workers can quickly identify contents, check compatibility before placing items together, and respond safely to spills or exposure. Segregation by hazard class prevents incompatible materials from being stored side by side, reducing the risk of dangerous chemical reactions, contamination, and spread of fire or toxic exposure. Relying on unlabeled containers makes identification uncertain and encourages improper handling, while mixing incompatible materials or storing them near ignition sources introduces clear and avoidable fire and safety hazards.