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Frequently Asked Questions For Independent Disinfectant Testing

Further Information

Further information about independent testing services can be found on the Disinfectant Testing pages of The Pirbright Institute website.

Submission form

The submission form (BDTL-FORM-1) is using the link below.
BDTL-FORM-1 v9.docx

On submission of the form to disinfectant.testing@pirbright.ac.uk, we will request an invoice to be forwarded to you from our Finance department.

Fees

Standard Test

The current fee for each test submission is £3,950.00 (plus VAT where applicable).

This fee is applicable to standard test conditions (4°C for 30 minutes, with 1% foetal bovine serum (FBS) soiling for FMDV tests) and provides a result using five replicates at one dilution.

Range Finder

Up to five dilutions can be requested where a single replicate will be tested for each dilution. These will be tested using standard conditions (4°C for 30 minutes, with 1% FBS soiling for FMDV tests).

The fee for our range finder test is £3,950.00 plus £120.00 for each additional dilution requested (plus VAT where applicable).

Custom Test

We also offer custom tests where different parameters to the standard conditions can be requested. These include changes to temperature, contact time and soiling percentage.
The number of conditions is limited to five per test.

Please note that in order to comply with our ISO/IEC17025 quality standards the standard conditions must also be tested alongside any requested parameter changes.

Example

Test sample A at 21°C, 30 minutes, 1% soiling for FMDV, 1 part disinfectant to 100 parts water and 1 part disinfectant to 150 parts water.

Test parameters

  1. Sample A at 21°C, 30 minutes, 1% soiling FMDV, 1 part disinfectant to 100 parts water
  2. Sample A at standard conditions 4°C, 30 minutes, 1% soiling FMDV, 1 part disinfectant to 100 parts water
  3. Sample A at 21°C, 30 minutes, 1% soiling FMDV, 1 part disinfectant to 150 parts water
  4. Sample A at standard conditions 4°C, 30 minutes, 1% soiling FMDV, 1 part disinfectant to 150 parts water

This customer would be charged £3,950.00 plus £360.00 (plus VAT where applicable).

Reports

Hard copies of disinfectant reports will be sent by courier, this service will cost £35.00 per disinfectant submission.
Test results will not be released until full payment has been received.

Material Safety Data Sheet

A safety data sheet must be sent either by email or with the product.

Neutralisation control

In 2015 a new version of EN 14675 ‘Chemical Disinfectants and Antiseptics – Quantitative Suspension Test for the Evaluation of Virucidal Activity of Chemical Disinfectants and Antiseptics used in the Veterinary Area’ was released. In response to changes within this standard the disinfectant testing laboratory has introduced a neutralisation control to all tests in order to prove that disinfectants are effective within the specified contact times. A neutraliser will be used to halt the virucidal activity of the disinfectant upon completion of the contact time.

  • For hydrogen peroxide and peroxymonosulphate based disinfectants the neutraliser will be carbonate/bicarbonate buffer + 1% FBS
  • For all other disinfectants the neutraliser will be phosphate buffered saline (PBS) +1% FBS

The test fees are determined based on testing of the disinfectant in one neutralising buffer. The above neutralisers have been chosen due to their effectiveness at halting the virucidal activities the majority of disinfectants within the specified categories without compromising the titre of the test virus.

If you are aware that your disinfectant will not be neutralised by either carbonate/bicarbonate buffer or PBS (+1% FBS) please contact us to arrange a suitable alternative. Please be aware that additional acceptance testing will have to be arranged to approve any alternative neutralisers and this will be charged in addition to the overall test. Failure to find a suitable neutraliser will lead to an incomplete result as we will be unable to determine a contact time for your disinfectant.

Sample Submission

The amount of sample we require for a disinfectant is normally between 100 to 200 grams or millilitres (please do not send large quantities of sample).

Dispatch of the sample is the responsibility of the customer and should be sent in accordance with local and international transport regulations. This will vary according to the nature of the product.

Turnaround Time for Testing

The current turnaround time is approximately three months.

This time frame is from receipt of all paperwork, payment and samples.

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