MSL Solution Providers

United Kingdom

+44 (0) 1706 282960



MSL Biocides is a microbiological testing laboratory, specialising in efficacy testing of disinfectant products used in a wide range of environments, including cleanroom disinfectant validation.


MSL offer an integrated Regulatory and Laboratory Testing Service. Our in-house accredited labs can provide a comprehensive range of standard tests, including efficacy testing against bacteria, fungi, spores, viruses, mycobacteria, legionella and algae. We can also offer a tailor made solution to any of your testing needs in order to support your requirements.

Disinfectant product testing

Biocidal products are those designed to control harmful or unwanted organisms such as bacteria, pests and viruses through the action of the active substance. Examples of biocidal products include; disinfectants, alcohol hand washes and insect repellents.

The Biocidal Products Regulation aims to improve regulation of these products due to their potential dangers to humans, animals and the environment. This is achieved by requiring the registration of active substances and finished products. Biocidal products may only contain active substances that have been previously been approved. (Ref suppliers Article 95)

In the UK the Health and Safety Executive (HSE) are the Competent Authority for Biocides while the European Chemicals Agency (ECHA) is responsible for driving the legislation forward. Both can be consulted for advice on complying with this regulation.

Cleanroom disinfectant validation

Biocidal products will have been tested for efficacy against the standard EU test methods, however cleanroom inspectors expect to see specific test data relating to the selected disinfectants used against the organisms isolated during routine environmental monitoring.

Efficacy testing

MSL can perform any Microbiological test methods (which include ISO, JIS) and also apply deviations appropriate to the intended use/application to support disinfectant validation and BPR dossiers.

  • EN13697 – Antibacterial / Antifungal Surface Tests
  • EN16615 – Wipes Efficacy Test (modified for all organisms)
  • EN13704 – Sporicidal Efficacy Tests
  • EN14476 – Virucidal Suspension Tests
  • EN16777 (draft) – Virucidal Surface Tests,/li>

Bespoke testing

At MSL we provide not only a comprehensive range of standard tests, but we can also offer a tailor made solution to any of your testing needs.

Technical support & consultancy

Allocated one point of contact with dedicated Technical Project Manager from initial enquiry to final report and beyond.

Regulatory services

At MSL we can provide support for all your biocide regulatory requirements.