Dispelling Myths: Common Misconceptions About 1910.36 Exit Routes in Laboratories

When it comes to ensuring safety in laboratories, understanding OSHA's 1910.36 regulations on design and construction requirements for exit routes is crucial. However, there are several misconceptions that can lead to non-compliance and safety hazards. Let's dive into these myths and set the record straight.

Myth 1: Exit Routes Only Need to Be Wide Enough for One Person

Some believe that as long as an exit route can accommodate one person, it meets the requirements. This is far from the truth. According to 1910.36(g)(2), an exit access must be at least 28 inches wide at all points. In laboratories, where multiple people may need to evacuate quickly during an emergency, wider exit routes are often necessary. We've seen cases where labs underestimated this, leading to bottlenecks during drills.

Myth 2: Any Door Can Serve as an Exit

It's a common misconception that any door in a lab can be used as an exit. Under 1910.36(d)(1), an exit door must be side-hinged and swing in the direction of exit travel. I've encountered labs where sliding doors or doors that swing inward were used as exits, which can impede evacuation during an emergency.

Myth 3: Exit Routes Can Be Blocked Temporarily

Another myth is that it's acceptable to temporarily block an exit route. 1910.36(d)(2) clearly states that exit routes must remain free and unobstructed at all times. From my experience, labs sometimes use exit routes for storage or place equipment in these areas, thinking it's just for a short time. However, based on available research, even temporary blockages can lead to catastrophic outcomes in an emergency.

Myth 4: Exit Signs Are Not Necessary in Well-Lit Areas

Some labs assume that if an area is well-lit, exit signs are unnecessary. However, 1910.37(b)(2) mandates that each exit route must be marked by a sign reading "EXIT" in plainly legible letters. In my work, I've seen labs neglect this, especially in areas where natural light might be present, but during power outages or smoky conditions, these signs become critical.

Myth 5: Fire Doors Don't Need to Be Kept Closed

There's a belief that fire doors in labs can be left open as long as they're closed during an actual fire. 1910.36(a)(3) requires that fire doors be kept closed to prevent the spread of fire and smoke. I've witnessed labs where fire doors were propped open for convenience, compromising the entire building's safety.

Understanding and dispelling these misconceptions is vital for maintaining a safe laboratory environment. For those looking to deepen their knowledge, resources like OSHA's official guidelines and the National Fire Protection Association (NFPA) provide detailed insights into compliance and best practices. Remember, safety in the workplace is not just about following rules; it's about fostering a culture where every individual feels responsible for the well-being of the team.