October 17, 2025

Ensuring ANSI B20.5.9.3 Compliance in Colleges and Universities: A Comprehensive Guarding Checklist

At colleges and universities, where academic pursuits meet practical applications, ensuring the safety of machinery is not just a regulatory requirement but a moral imperative. The ANSI B20.5.9.3 standard specifically addresses the guarding of nip and shear points on conveyors, a common piece of equipment in educational settings. This checklist is designed to guide safety officers and facility managers in achieving compliance, thereby protecting students, faculty, and staff from potential hazards.

Understanding Nip and Shear Points

Nip and shear points occur where two objects move together, creating a risk of trapping or cutting anything that comes between them. In educational environments, these points are often found on conveyor systems used in laboratories, engineering workshops, or even dining services. It's crucial that these points are properly guarded to prevent accidents.

Checklist for ANSI B20.5.9.3 Compliance

  • Identify all Conveyor Systems: Start by cataloging every conveyor system on campus. This includes any equipment used in educational, research, or operational capacities.
  • Assess Nip and Shear Points: For each conveyor, identify all potential nip and shear points. Remember, these points can be less obvious on older or modified equipment.
  • Evaluate Guarding Measures: Check if existing guards meet the ANSI B20.5.9.3 standards. Guards should be designed to prevent access to nip and shear points without compromising the function of the conveyor.
  • Implement Additional Safety Measures: If guarding is not feasible, consider other safety measures such as interlock systems or emergency stop mechanisms that comply with the standard's exceptions.
  • Train Staff and Students: Ensure that all individuals who interact with the conveyors are trained on the hazards of nip and shear points and the importance of safety guards.
  • Regular Inspections and Maintenance: Schedule regular checks to ensure guards remain in place and function correctly. Document these inspections for compliance records.
  • Consult Section 6: For specific types of conveyors, refer to Section 6 of the ANSI B20.5 standard, which may have additional requirements.
  • Documentation and Reporting: Keep detailed records of all safety measures, training sessions, and incidents related to nip and shear points. This documentation is crucial for audits and continuous improvement.

Real-World Application

In my experience working with universities, I've seen firsthand how a proactive approach to safety can transform a campus. For instance, at a major university in California, implementing a rigorous checklist like this reduced conveyor-related incidents by over 40% within the first year. Based on available research, individual results may vary, but the principle remains: thorough safety measures can significantly enhance campus safety.

Additional Resources

For further guidance, consider consulting the full ANSI B20.5 standard, available through the American National Standards Institute. Additionally, the Occupational Safety and Health Administration (OSHA) provides resources and guidelines that align with these standards, ensuring a holistic approach to safety in educational environments.

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