BioHygiene

• There is no official BS EN test for the residual effectiveness of sanitisers against bacteria or  viruses and hence no tests currently listed by the European Chemicals Agency to demonstrate residual activity under the Biocidal Products Regulation (BPR)
• There is PAS 2424:2014, exclusively for the 24-hour residual effectiveness of disinfectants  against some bacteria and one yeast. It is important to note that this is not an official BS EN  test and may ultimately change and is only a 3-log reduction pass which may not bring the  level of bacteria below the recognised infectious dose of over 10-100 bacteria/viruses

1. Products must have passed EN13697 (the standard surface test requiring a 4-log reduction) under appropriate conditions
2. Incorporates a series of physical abrasions and the re-application of the test organisms to the test surface to simulate day to day conditions, as disinfected surfaces will rarely, if ever, stay pristine and untouched
3. Is designed to test for a period of 24 hours only
4. Must be tested against strains of bacteria Pseudomonas aeruginosa, Staphylococcus aureus, Enterococcus hirae and Escherichia coli and the yeast, Candida albicans
5. Must be conducted under dirty conditions. This is obligatory
6. Requires a 3 log (99.9%) reduction in microbial numbers to pass the test. As an example, for every 1 million bacteria, a 3-log reduction would leave 1,000 and a 4-log reduction would leave 100.  This applies to all sanitisers whatever their constituents without exception.

This information is provided by BioHygiene, CJS Portsmouth cannot take responsibility for any of the information or claims held within.

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