EN 17126 Chemical Disinfectants and Antiseptics - Quantitative Suspension Test for Evaluation of Spore-killing Efficacy of Chemical Disinfectants in the Medical Field - Test Method and Requirements (Phase 2, Step 1)

EN 17126 Chemical Disinfectants and Antiseptics - Quantitative Suspension Test for Evaluation of Spore-killing Efficacy of Chemical Disinfectants in the Medical Field - Test Method and Requirements (Phase 2, Step 1)

In the European standard EN 17126, the requirements for the sporicidal activity of chemical disinfectant products, which when diluted with hard water or, in the case of ready-to-use products, form a homogeneous, physically stable preparation with water, are described and a test method is defined. Products can only be tested at 80 percent concentration or less. Because some dilution is always produced by adding test organisms and interfering substances.

EN 17126 Chemical Disinfectants and Antiseptics - Quantitative Suspension Test for Evaluation of Spore-killing Efficacy of Chemical Disinfectants in the Medical Field - Test Method and Requirements (Phase 2, Step 1)

This test method applies to products used in the medical field for instrument disinfection by immersion and surface disinfection by wiping, spraying, flooding or other means.

Such symptoms occur in patient care. The most common environments are:

  • Hospitals, community health facilities and dental practices
  • Clinics of schools, kindergartens and nursing homes
  • workplaces and homes

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 17126 standard is intended to determine the effectiveness of commercial formulations or active substances on viruses under the conditions in which they are used. This method corresponds to a phase 2, step 1 test.

The product sample delivered at the time of testing, or diluted with water for hard water or ready-to-use products, is added to the test suspension of spores in a solution of an interfering substance. The mixture is kept at the temperature and contact time specified in the standard. At the end of this contact period, a portion is taken. The sporicidal effect in this part is immediately neutralized or suppressed by an approved method. The preferred method is dilution-neutralization. If a suitable neutralizer cannot be found, membrane filtration is used. The number of surviving spores in each sample is determined and the reduction calculated.

Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides quantitative suspension testing services for the evaluation of the sporicidal effectiveness of chemical disinfectants in the medical field within the scope of EN 17126 standard, with its trained and expert staff and advanced technological equipment.

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