Final answer:
The Gas Cylinder symbol on the NFPA 704 Hazard Identification System represents the Physical Hazard of Compressed gas. It alerts users to the potential hazards associated with high-pressure gas storage and handling. The correct answer is option c.
Step-by-step explanation:
The symbol of a Gas Cylinder on the National Fire Protection Agency (NFPA) 704 Hazard Identification System, commonly known as the hazard diamond, represents a Physical Hazard that is specific to Compressed gas. This symbol is used to alert users to the potential hazards of gas cylinders, which, due to their high pressure, can explode if handled improperly. The NFPA 704 system also includes symbols for other dangers such as flammability, reactivity, health, and specific hazards like radioactive materials, but for gas cylinders the focus is on their physical state under high pressure.
It is important to understand that gases have no definite shape or volume, and they take the shape of their container. This makes the management of these substances crucial for safety, particularly in a laboratory or workplace setting where the storage and handling of gas cylinders must adhere to strict guidelines to prevent incidents.