Which container is specified for disposing of solvent-soaked rag waste?

• A. Plastic bag
• B. Covered metal can
• C. Cardboard box
• D. Glass jar

Answer: (B)

Solvent-soaked rag waste presents both fire and vapor hazards, so the container used must be nonflammable, rigid, and able to seal tightly. A covered metal can fits this need: it’s noncombustible, won’t soften or melt under solvent exposure, and the tight lid minimizes vapor release and keeps any heat contained, reducing the risk of ignition spreading.

Plastic bags can trap vapors and are themselves flammable; cardboard boxes are porous and combustible; glass jars are brittle and not ideal for safely containing potential heat buildup or handling during waste collection. Therefore, a covered metal can is the safest and most appropriate choice for disposing of solvent-soaked rag waste.