Which of the following would be classified under hazardous materials?

Certain cleaning chemicals are classified as hazardous materials because they can pose significant risks to health and safety when improperly handled. These chemicals may contain toxic, flammable, corrosive, or reactive properties, which can lead to exposure risks for individuals and environmental concerns if not managed correctly.

In the context of hazardous material classifications, various cleaning chemicals are specifically regulated due to their potential harmful effects. Proper labeling, storage, and handling procedures are essential to mitigate these risks, making awareness and training on such materials critical in aviation maintenance and other sectors.

On the other hand, water, dust, and sand are generally not classified as hazardous materials. Water, while it can sometimes cause hazards in certain conditions (like in flooding), is not inherently hazardous. Dust can potentially be an irritant or cause respiratory issues if it contains harmful particles, but it does not typically fall under the same rigorous classification as cleaning chemicals. Sand, unless contaminated with hazardous substances, is considered a benign material and does not pose a health risk in its usual form.