Confined Space Entry
Analyze the project for the potential for confined spaces. Workers should not enter confined spaces without proper training and management authorization. A confined space is defined as a space that is:
- not designed for continuous occupancy;
- is large enough and so configured that a person can bodily enter into and perform assigned work, and
- has limited or restricted means for entry or exit.
Confined spaces that may have hazardous atmospheres require special precautions. Hazardous atmospheres are those that may expose employees to the risk of death, incapacitation, and impairment of ability to self-rescue caused by:
- flammable gas, vapor, or mist in excess of 10 percent of its lower flammable limit (LFL);
- Airborne combustible dust at a concentration that meets or exceeds its LFL;
- Atmospheric oxygen concentration below 19.5 percent or above 23.5 percent;
- Atmospheric concentration of any substance for which a dose or a permissible exposure limit is published in Subpart G, Occupational Health and Environmental Control, or in Subpart Z, Toxic and Hazardous Substances, of this Part and which could result in employee exposure in excess of its dose or permissible exposure limit; or
- Any other atmospheric condition that is immediately dangerous to life or health.
For more information on this topic, take Course 713 Confined Space Program or Course 816 Confined Space Safety in Construction.
Knowledge Check Choose the best answer for the question.
5-8. Which of the following would be considered a confined space containing a hazardous atmosphere?
You forgot to answer the question!