Test Standards

Need to find the right standards for your new product or solution?

The 4ward Testing standards database provides a rapid method to identify the correct standards for your new product.

Identify your requirements today and discover why 4ward Testing provides the UK's leading testing solutions.

find your standards!



  • Medex Scientific (U.K.) Limited

    4ward reacted very quickly, delivered on time and were very communicative during the process, and were efficient in the follow up. We have continued to work with them and expect to do so.

    read more

Medical Face Mask Testing: Bacterial Filtration

Medical Face Mask Testing: Bacterial Filtration

Bacterial Filtration Efficiency, to BS EN14683:2019+AC:2019 Section 5.2.5, is a measure of the resistance of a material to bacteria penetration. The results are reported as percent productivity and are related to the fabric's ability to resist bacterial penetration.

The test is used to determine the amount of infective agent that is retained by the face mask.

A six-stage cascade impactor and an aerosol chamber are used to carry out this testing. An aerosol pathogen of Staphylococcus Aureus is introduced into the aerosol chamber and drawn through the mash material, and the impactor under the vacuum. The results are given as a percentage. The higher the percentage, the more the mask prevents the passage of bacteria.


Our Solutions

4ward Testing solutions provide:

  • Commercial focus
  • Strong business partnership
  • Key stage project feedback
  • Real business value

read more

Bespoke Testing

  • Our Adaptable Laboratory specialises in Bespoke Testing and has over 50 years of experience in designing and building custom test rigs and tailor made test programmes.
    Read more

Need more?

Need more information? Have a specific need? Want to discuss your latest product or review an existing range for a new standard?

4ward Testing is ready to help you understand how your product ranges work within a competitive, standards focussed, marketplace.

contact us

Latest News

Subscribe here to the 4ward Testing newsletter to receive news, details of our latest solutions and special offers.

4ward Testing uses "Mailchimp" to power our newsletters and we pursue a strong privacy ethic Privacy Policy
Not a valid e-mail address

Invalid Input

01798 342240

This site uses cookies and similar technologies.

By clicking on the button below you are agreeing to our privacy policy (see menu at bottom of site)

I understand