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LBL08001 - Maintenance and Cleaning

Author: Tom Hodder Approved by: S. Thompson SOP No. LBL08001
Signed: Signed: Effective from:
Date: Date: Last edited:


Maintenance and Cleaning are fundemental to the operation of a safe and successful biolab. This document provides the daily, weekly and ad-hoc procedures that are in place.


  • This SOP applies to all users in all circumstances in the LBL biolab without exception.
  • In the case of specific instructions for Maintenance and Cleaning of equipment the user should defer to the relevant SOP for that particular piece of equipment.


  • All users of the biolab are responsible for ensuring the clean and safe operation of equipment, lab furniture and tools.
  • The Biological Safety Officer has oversight and responsilibity to make final decisions regarding maintenance and cleaning.

There are risks associated with certain cleaning products. Bleach is considered a hazardous substance and care must be taken to follow the instructions on the label.

It is the user's responsibility to check the MSDS for any chemical or cleaning products they are using.


The following items should be available in the lab

  • Disposable Nitrile gloves in various sizes
  • Plastic aprons
  • Eye protection
  • Plastic over-shoe protection
  • Cleaning products are available under the sink
  • A Mop and bucket
  • Blue roll
  • Disinfectant
  • Sterilzing Spray

Related documents

lbl08003 - Handling spillage of micro-organisms
lbl04007 - Using the Kill Bin


Biological Safety Officer
Standard Operating Procedure


Daily Maintenance and Cleaning procedures

Before starting work

  1. At the beginning of daily sessions the worktops should be cleared and any washing done and cleaned items returned to the shelves.
  2. Bins should be emptied.
  3. Any unlabeled liquid media should be emptied into the kill bin.
  4. Unknown/unlabeled and dirty glassware left out should be autoclaved, washed and returned to shelves.
  5. Work areas should be disinfected with Surgical spirit before work commences.

After Completing work

  1. Clear the work surfaces of equipment and consumables. Don't leave things out.
  2. All media and cultures should be labeled.
  3. The Kill bin should be emptied of solid materials such as petri dishes. see Emptying the kill bin
  4. Empty the geneal waste bins to the outside non-recyclables bin.
  5. Do the washing up.
  6. Make a record of the procedures and protocols in the lab day book.
  7. Ensure that electrical equipment is turned off, such as autoclave and RO pump

Weekly cleaning and maintenance procedures

  1. Mop the floor with a 10% bleach solution
  2. Refill the Bleach solution in the kill bin. See section Refuilling the kill bin
  3. Stock check the levels of consumables
    • Nitrile gloves
    • The spill kit
    • Bleach
    • Sterilizing Spray

Ah-Hoc cleaning and maintenance procedures

Disposal of equipment

Equipment that is disposed of, due to obsoletion or damage etc, will need to be cleaned and decontaminated if it has come into contact with GMO. This procdure must be assessed and carried out on a case by case basis.

Please contact the BSO if you plan to remove any equipment from the biolab.


The SACGM Compendium of guidance Part 3: Containment and control of activities involving genetically modified microorganisms