What action must be taken if an atmospheric test shows a hazardous condition?

The correct course of action when an atmospheric test reveals a hazardous condition is to not enter the confined space until the hazard is eliminated. This is in line with OSHA regulations, which prioritize the safety and health of workers by ensuring that any identified dangers, such as toxic gases, insufficient oxygen, or flammable materials, are addressed before entry.

Entering a space that poses a hazardous atmosphere can lead to serious injuries or fatalities. By requiring that the hazard be eliminated first, the protocol underscores the importance of safeguarding workers' well-being. This means that necessary actions could include ventilation to disperse harmful gases, using protective equipment suitable for the detected hazards, or implementing engineering controls to rectify the safety issues.

The other actions listed do not align with the safety practices mandated by OSHA. Proceeding with caution, waiting for approval, or entering while wearing additional gear does not adequately ensure the safety of workers in the presence of a recognized hazardous condition. It is crucial to prioritize eliminating hazards before any potential entries are made into a confined space.