Dispelling Common Misconceptions About ANSI B20 5.9.3 Guarding of Nip and Shear Points in Oil and Gas

In the oil and gas industry, safety is paramount. Yet, there are several misconceptions about ANSI B20 5.9.3, which specifically addresses the guarding of nip and shear points. Let's clear up some of these misunderstandings to ensure a safer workplace.

Misconception 1: Nip and Shear Points Don't Need Guarding If They're Out of Reach

Some believe that if nip and shear points are positioned in hard-to-reach areas, they don't require guarding. However, ANSI B20 5.9.3 states that all nip and shear points must be guarded unless other safety measures are in place. In my experience, I've seen accidents occur even in areas thought to be 'safe' due to inaccessibility. Proper guarding is essential, regardless of location.

Misconception 2: Any Type of Guarding Will Do

Another common misunderstanding is that any type of guarding is sufficient for nip and shear points. According to ANSI B20 5.9.3, the guarding must be specifically designed to prevent access to these hazardous areas. We've encountered situations where makeshift guards failed to meet these standards, leading to potential hazards. Always ensure that the guarding used complies with the detailed specifications of the standard.

Misconception 3: Guarding Isn't Necessary If Workers Are Trained

There's a myth that if workers are trained to avoid nip and shear points, guarding isn't necessary. However, training alone does not substitute for proper physical safeguards. Based on available research, individual results may vary, but the consensus is clear: training should complement, not replace, physical guarding. I've worked with companies where comprehensive training programs were in place, yet accidents still occurred because of inadequate guarding.

Misconception 4: Guarding Is Only Required on New Equipment

Some believe that guarding requirements only apply to newly installed equipment. ANSI B20 5.9.3, however, mandates that all equipment, new or old, must be guarded according to the standard. In our work, we've seen older machinery retrofitted with modern safety guards to meet these requirements, significantly reducing the risk of injuries.

Misconception 5: Other Safety Measures Are Sufficient Without Guarding

The final misconception is that other safety measures can fully replace the need for guarding. While additional safety protocols are beneficial, ANSI B20 5.9.3 clearly states that guarding is required unless other means to ensure safety are provided, which must be equally effective. In my experience, combining guarding with other safety measures, like lockout/tagout procedures, provides the most robust safety strategy.

For further reading on ANSI standards and their application in the oil and gas industry, consider visiting the ANSI website or consulting with safety experts like those at OSHA.