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Standard

SN-CWA 18308:2025

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Abstract

This document specifies proper methods to investigate the mechanism of action by which a coated specimen reduces viral infectivity titer. This protocol is intended to be used after the verification of the antiviral activity of a coated surface following the ISO 21702:2019 guideline. Two test procedures are described in this document. The first test, the drying test, aims to evaluate whether the antiviral activity of a coated material is due to the direct inactivation of virus particles. The second one, the ion release test aims to assess the potential indirect antiviral activity of ions released by a coated specimen. Due to the individual sensitivities, the results of one test virus might not be applicable for other viruses.

Document information

  • Standard from SN
  • Published:
  • Edition: 2025-12
  • Version: 1
  • Document type: CWA
  • ICS 11.080.01
  • ICS 25.220.99
  • National Committee CEN/WS NANOBLOC

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