BS EN 17122: 2020

Quantitative non-porous surface test for evaluating the virucidal activity of chemical disinfectants and antiseptics used in the veterinary area.

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Standard to Assess Virucidal Activity of Chemicals Intended for Disinfection

Quick understanding of the test

BS EN 17122: 2020 - Quantitative non-porous surface test for evaluating the virucidal activity of chemical disinfectants and antiseptics used in the veterinary area.

EN 17122 assesses the virucidal activity of chemical disinfectants and antiseptics intended for use in veterinary areas.

Application

Applicable to disinfectant products used in veterinary settings, such as breeding, husbandry, production, transport, and veterinary care facilities.
  • Test virus suspension is inoculated onto the carrier and dried.
  • The test surface is treated with the disinfectant sample for a specified contact time.
  • After the contact time, the test surface is transferred to a cell maintenance medium for neutralization. 
  • The virus titre recovered from the test surface is determined, and the reduction in virus titre is compared with control.

Turnaround Time

The test takes approximately 5-6 weeks to complete.
The efficacy of the disinfectant is determined by measuring the reduction in viral infectivity after treatment.

Passing criteria

A disinfectant must demonstrate at least a 3-log reduction in viral infectivity to meet the standard requirements.

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Abstract

EN 17122:2020 outlines a quantitative non-porous surface test method for determining the virucidal activity of chemical disinfectants and antiseptics intended for use in the veterinary field. As a Phase 2, Step 2 test, it evaluates product efficacy under conditions that closely replicate real-life applications on non-porous surfaces.

The method employs a carrier as a test surface to simulate viral contamination and then  challenges it with the test disinfectant. This approach reflects practical use scenarios, allowing assessment of critical factors such as contact time, temperature, and organic load that may influence the disinfectant’s performance.

Scope of EN 17122 Testing

This method is disinfectant products intended for use without mechanical action on non-porous surfaces within the veterinary sector – 

  • Breeding
  • husbandry
  • production
  • veterinary care facilities 
  • transport, 
  • and disposal of animals, but excludes applications involving animals that have entered the food chain after death and are undergoing processing.

EN 17122 Test Conditions & Requirements

EN 17122 Test Method

    • A known concentration of the test virus is mixed with an interfering substance that simulates organic soiling. The mixture is then dried onto a non-porous surface.
    • The test product (ready to use or diluted to required concentration), is applied directly to the dried virus film. The interaction is allowed for the specified contact time.
    • After the contact time,  a neutralizer is added to stop the disinfectant’s activity. The virus is then recovered from the surface, and the sample is transferred to suitable host cells for infectivity testing.
    • The remaining infectious virus particles are quantified and compared with untreated controls. 
    • To claim virucidal activity, test sample must show a minimum log reduction of 3 in the virus titre.

Importance of EN 17122 Test

In veterinary environments, surfaces frequently come into contact with organic matter, animal secretions, and potential viral contaminants. These conditions create a high risk for the spread of viral infections among animals, and occasionally to humans handling them.

This standard provides a  stringent  framework to determine whether a disinfectant can effectively inactivate viruses on non-porous surfaces under conditions that closely resemble real-world use. 

 As a surface test method, EN 17122 evaluates the virucidal activity of disinfectants on non-porous surfaces under practical conditions representative of veterinary use. Products that meet the performance criteria defined in EN 17122 demonstrate proven antiviral effectiveness in challenging, real-life veterinary conditions, thereby supporting manufacturers to demonstrate compliance with European regulations, strengthen product credibility

How MIS can help with EN 17122 testing

At Microbe Investigation Switzerland (MIS), we help veterinary product manufacturers validate the virucidal efficacy of their disinfectants in compliance with  EN 17122:2020. Our laboratory conducts tests under controlled yet realistic conditions, simulating contamination, drying, and disinfection on non-porous surfaces, to deliver accurate, reproducible, and standard-compliant results.

Partner with MIS to verify the antiviral performance of your disinfectant formulations, demonstrate compliance with European regulatory standards, and build confidence in your product’s effectiveness.

Contact us today to schedule your EN 17122 testing and ensure your disinfectant meets proven real-world virucidal standards in the veterinary sector.

Frequently Asked Questions

DR. Martinoz Scholtz

MIS Labs
1. What is EN 17122 test?

EN 17122 is a phase 2 step 2 test that specifies a surface test method for evaluating the virucidal activity of chemical disinfectants and antiseptics used in the veterinary area.

2. What are the Products that can be tested with the EN 17122 test?

EN 17122 test applies to disinfectant/antiseptic products intended for disinfecting without mechanical action on non-porous surfaces in the veterinary area.

3. What is the Turnaround Time for EN 17122 test?

EN 17122 test takes 5-6 weeks to complete.

4. Which viral strains can be used to test for EN 17122?

At Microbe Investigations, we test for EN 17122 using the following microbial strains:  Porcine Parvovirus for a full virucidal activity test and Feline coronavirus to test activity against enveloped viruses.

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