What is the purpose of an oxygen indicator?

The purpose of an oxygen indicator is primarily for chemical analysis, as it measures the concentration of oxygen in the environment. This is critical in various applications, particularly in places like mines or enclosed spaces where monitoring oxygen levels is essential for safety reasons. An adequate level of oxygen is necessary for combustion processes and human respiration; thus, these indicators help ensure that oxygen levels remain within safe limits.

In chemical analysis, understanding the oxygen concentration can also lend insights into oxidation-reduction reactions or other chemical processes occurring within a specific environment. These indicators serve as a crucial safety tool to prevent situations where oxygen levels might drop below safe thresholds, which could lead to dangerous conditions for workers in confined spaces.