Accessibility statement

Risk Assessment Requirements

Generic Departmental Assessment:

  • The following risks are generic to all lab areas:
    • the storage of biological materials in non-pressurised liquid nitrogen dewars
    • use of small quantities of liquid nitrogen for laboratory activities
  • The application of arrangements / working practices outlined in this departmental guidance will ensure risks are reduced to a low and acceptable level.

 Specific Risk Assessment:

  • A specific risk assessment must be completed for areas storing quantities of liquid nitrogen that present a significant risk of asphyxiation, for example, use of pressurised cylinders which could release contents in the event of a valve failure. A Liquid nitrogen example: Risk assessment (PDF , 147kb) can be used for information and guidance. Contact Department Safety Advisor (David Nelson, e: dn6) for assistance if required.
  • The process for completing a risk assessment for the handling and use of liquid nitrogen follows the same general rules for all risk assessments:
    • Identify hazards
    • Decide who might be harmed and how
    • Evaluate the risks and decide whether existing precautions are adequate or whether more needs to be done
    • Record your findings
    • Review and revise your assessment as appropriate
  • Information provided in other sections of these web pages will help you to identify the hazards and determine the relevant control measures needed

Assessment of ventilation requirements