
In the European standard EN 14476, the requirements for the virucidal activity of chemical disinfectant and antiseptic products that form a homogeneous, physically stable preparation when diluted with hard water, and a test method are defined. Products can only be tested at a concentration of 80 percent or less because some dilution is always produced by adding test organisms and interfering substances.
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This standard covers products used in the field of hygienic handwashing, hygienic handwashing, surgical handwashing, surgical handwashing, instrument disinfection by dipping, and surface disinfection by wiping, spraying, flooding or other means.
This test method is applicable to areas and situations where disinfection is medically indicated. The most common environments are:
This test method also covers service areas such as laundry and kitchen that provide products directly to patients.
The test method defined in the EN 14476 standard is intended to determine the effectiveness of commercial formulations or active substances under the conditions in which they are used.
Meanwhile, another European standard, EN 14885, contains details for using the interrelationship of various tests and recommendations.
When performing the test, a sample of the product diluted with water for hard water or ready-to-use products is added to the test suspension of viruses in a solution of the interfering substance. The mixture is kept at one of the temperatures and contact times specified in the standard. At the end of this contact period, some is taken. The virucidal effect in this part is suppressed immediately by an approved method. Infectious testing is done either by plaque testing or by quantitative testing. After incubation, infectivity titers are calculated and evaluated.
Among the numerous tests, measurements, analyses, and evaluations our organization provides for businesses in various sectors, we also offer quantitative suspension testing services for the evaluation of the virucidal activity of chemical disinfectants and antiseptics in the medical field, within the scope of the EN 14476 standard, thanks to our trained and expert staff and advanced technological equipment.
