Which of the following is NOT a characteristic of hazardous materials?

• A. Lethality
• B. Toxicity
• C. Corrosivity
• D. Ignitability

Answer: (A)

Hazardous materials are described by properties that indicate how they can cause harm in practical situations, such as handling, transport, and exposure. Toxicity shows how a substance can injure living organisms, corrosivity describes the ability to corrode materials or tissue on contact, and ignitability indicates a material’s tendency to catch fire. These are the kinds of characteristics used to classify hazmats and communicate risk.

Lethality, while it can result from exposure, is not a defined property used to classify hazardous materials. It’s the outcome that may occur under certain doses or conditions, not an inherent characteristic of the substance itself. A material can be highly lethal under some circumstances but not be described by lethality as a standard characteristic like toxicity, corrosivity, or ignitability.

So the option that does not fit as a characteristic of hazardous materials is lethality.