Ключевые слова: acid, attention, background, beware, bottle, caution, chemical, chemicals, colorful, container, contamination, corrosive, danger, dangerous, emergency, environment, equipment, explode, explosive, fire, flammable, harmful, hazard, hazardous, health, icon, industrial, industry, information, label, laboratory, material, pictogram, poison, pollution, protect, protection, red, risk, safe, safety, security, sign, storage, substance, symbol, technology, toxic, warning, waste,