A container bearing a half black/half white DOD label is used to indicate which hazard?

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Hazard labeling on DoD containers uses standardized patterns to convey the type of hazard at a glance. A container bearing a half black and half white label is designed to signal a corrosive hazard. Corrosives can cause severe burns to skin and eyes and can rapidly corrode metals and many materials they contact. That urgent warning is why this two-tone pattern is used—it stands out and communicates danger quickly, even in less-than-ideal conditions.

So, when you see this label, you should treat the contents as corrosive and handle with appropriate protective equipment (such as chemical-resistant gloves and eye/face protection) and store or transport it in a way that avoids contact with skin and metals. This differs from flammable materials, which are identified by a flame symbol and different color cues, or from materials reactive with water, which carry a different warning, and from hazardous waste, which indicates waste material rather than the specific chemical hazard.