Veterinary disinfectants play an essential part in the prevention and control of endemic
epizootic animal diseases. In the United Kingdom and its devolved administrations
only approved disinfectants can be used where required in the
Animal Health Act 1981
and in orders issued under the act. The Approval Process is regulated through
The Diseases of Animals (Approved Disinfectants) (England) Order 2007
(S.I. 2007/448) and parallel statutory
instruments in the devolved administrations. The IAH Pirbright Laboratory offers efficacy
testing for disinfectants against foot-and-mouth disease virus (FMDV) and swine vesicular
disease virus (SVDV).
The standard DEFRA test is a disinfectant suspension test where dilutions of the disinfectant
under test are made in W.H.O hard water with or without protein soiling. To these dilutions
FMDV or SVDV is added as required and the test mixture will be held at 4°C for 30 minutes. Residual
virus infectivity is detected and quantified by inoculating serial dilutions of the test mixtures
onto cell culture. Disinfectants under test will be deemed efficacious if the virus titre is
reduced by at least 10⁴ (4 logs) in the test. Manufacturers of disinfectants seeking official
DEFRA approval for their product under
The Diseases of Animals (Approved Disinfectants) (England) Order 2007
should submit their products to DEFRA Disinfectants Approvals
who will forward product for testing against FMDV and SVDV to IAH.
IAH also offers a disinfectant testing service to UK and international clients developing
disinfectants against animal viruses. Here certain parameters can be adapted depending on
the client requirements and a range finder assay is offered, where up to five different
dilutions of the disinfectant under test can be evaluated to determine the optimal dilution
effective against FMDV or SVDV. All laboratory work carried out will be compliant to ISO
9001 standards and disinfectant testing is normally completed within a three month period.
Requests for independent disinfectant testing services (non-statutory) should be made to
our Disinfectant Testing Laboratory accompanied by the
submission form .
Disinfectant Testing Laboratory,
Institute for Animal Health,
Pirbright, Surrey, GU24 0NF, United Kingdom
Telephone: +44 (0)1483 231064
Email: iah.disinfectants@bbsrc.ac.uk


