Confined Space - Knowledge Center

With approximately 1.6 million workers entering confined spaces each year, how to keep these workers safe is a topic worth discussing. In fact, OSHA estimates that employers fully complying with safety standards would prevent 53 deaths, 5,000 lost days, and 5,700 other accidents annually. Unfortunately, a NIOSH review determined that many injuries and fatalities related to confined spaces happened simply because employers and their workers failed to recognize, plan, and control for the hazards related to this type of work. With proper diligence, you can help your employees stay safe in these challenging conditions.

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What’s in, what’s out, what’s new, and what’s neededIn 1993 OSHA enacted 29 CFR 1910.146 “Permit-Required Confined Spaces.” In 2015, a major new confined space regulation, 1926 Subpart AA, expanded (more...)

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What kinds of sensors are used to detect LEL combustible gas?

Confined space instruments almost always include a sensor used to measure percent LEL combustible gas. There are two types of widely used LEL sensors; catalytic...

Oxygen enrichment in confined spaces

The concentration of oxygen in confined spaces is a concern from two standpoints. Too little oxygen can cause asphyxiation. Excessively high or "enriched" levels of...

What combustible gases are associated with confined spaces?

Combustible gases and vapors can be produced by materials used or stored in confined spaces, as well as natural processes. The most common combustible gas found in...

What should be included in a lockout procedure?

OSHA’s lockout standard 1910.147(c)(4)(i) requires that employers have machine-specific lockout tagout procedures for equipment. To help employees effectively perform...

What types of gas should I watch out for when working in a confined space?

Due to their nature, confined spaces are inherently dangerous areas to work in. Potential risks in confined spaces are numerous and include fire hazards, noise,...

What is the best kind of gas detector to use in confined spaces?

It can only take seconds to succumb to a hazardous atmosphere in a confined space. That’s why investing in high quality gas detectors is one of the most important steps...