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Materials Descriptions and Hazard Level

When preparing a requisition, or approving a requisition on the OPeRA system, (or other accepted procurement method), it is important that the hazard potential or Hazard Level of the item being ordered is considered at the requisition stage and that the risks are duly managed once the item is introduced into the University.

Training in the use of the OPeRA system and access to a Full User Manual can be obtained from the OPeRA pages within the IT Services webpages.

A 'walk through guide' has also been prepared to show you how to alter the relevant Hazard Level and assign the relevant Material Code within the OPeRA system.

The following table will assist anyone to determine the Hazard Level for Material Descriptions which have been identified within the OPeRA system as having a hazard potential and should be used to support decision making at the requisition and approval stages withn the OPeRA workflow:

Material Description (with link to Hazard Level guidance)

Examples Related Topic Guidance

Equipment - Lab & Workshop (under 25K)

Equipment - Lab & Workshop (over 25K)

Only for equipment that has specific hazard potential :

  • Ionising radiation
  • Lasers
  • Non ionising (UV, IR, HF) radiation generators
  • Electromagnetic radiation
  • X-rays
  • Bespoke design

Ionising Radiation;


Machinery & Work Equipment

Biological Materials - including Micro-organisms, cell lines

Strictly Licensed Substances

  • Bacteria, viruses, fungi, parasites
  • Prions
  • Animal pathogens
  • Plants & plant pathogens
  • Pathogens and toxins
  • Human samples including tissues;
  • Cell lines

Note: all biological materials will require GMBSC or alternative SLS approval

Biological Safety webpage

Consumables - Animal/amphib/insect/anthropod

Animals, amphibians, insects and anthropods

Note: only SLS will be permitted to place requisitions for materials in this category

Biological Safety
Consumables - Drugs & pharmaceutical products
  • Drugs
  • Pharmaceutical products
Consumables - Agrochems/Fertilisers/Pesticides
  • Agrochemicals
  • Fertilisers
  • Pesticides
Consumables - Gases & Cryogenics
  • Gas cylinders
  • Cryogenic gas deliveries
Gas Cylinders

Chemicals - including

  • Biochemical reagents
  • Formulated Products
  • General laboratory chemicals
  • Batteries (for research, such as Li-ion)
  • Nanomaterials
Hazardous & Restricted Substances
Chemicals - Radiochemicals - sealed sources

Ionising Radiation - sealed sources

Note: Your Radiation Protection Supervisor (RPS) MUST be consulted prior to any requisition being made

Ionising Radiation - sealed sources
Chemicals - Radiochemicals - open sources

Radioactive substances

Note: Your Radiation Protection Supervisor (RPS) MUST be consulted prior to any requisition being made

Ionising Radiation - open sources
Chemicals - Strict Licensed Substances (not otherwise specified elsewhere)
  • Drug Precursors
  • Substances covered by the Chemical Weapons Convention (CWC)
Strict Licenced Substances
  • Explosives
  • Detonable substances
Hazardous & Restricted Substances
Waste Disposal - Radioactive

Radioactive waste - Ionising radiation of any kind

Note: The Radiation Protection Officer MUST be consulted prior to any requisition being raised

Hazardous Waste

Ionising Radiation

Waste Disposal - Clinical / Bio

Clinical or biological waste disposal

Note: Only authorised staff are permitted to requisition clinical / biological waste disposal services

Biological Waste
Waste Disposal - Hazardous

Chemical waste (not covered above)

Note: Only authorised staff are permitted to requisition hazardous waste disposal services

Hazardous Waste