What are the characteristics of a non-flammable gas?

A non-flammable gas is defined primarily by its inability to ignite or support combustion. This characteristic means that when exposed to an ignition source, non-flammable gases will not catch fire or sustain a flame, making them safer to handle in situations where fire risk is a concern.

The boiling point of a gas does not necessarily determine its flammability; thus, having a low boiling point is not a relevant factor in classifying a gas as non-flammable. A gas can be heavy and still be classified as non-flammable, but that trait does not define non-flammability either. While some non-flammable gases can cause respiratory irritation, this is not a defining characteristic of all non-flammable gases, as some may not pose any health hazards.

Focusing on the ability to not ignite or sustain combustion is crucial when identifying non-flammable gases, as it directly relates to safety considerations in hazardous materials management and fire prevention.