NBN ISO 22551:2021

Fine ceramics (advanced ceramics, advanced technical ceramics) — Determination of bacterial reduction rate by semiconducting photocatalytic materials under indoor lighting environment — Semi-dry method for estimating antibacterial activity on the actual (ISO 22551:2020)

ACTIVE

About this standard

Languages
English
Type
NBN
Standards committee
BCRC/E184
Status
ACTIVE
Publication date
26 May 2021
ICS Code
81.060.30 (Advanced ceramics)
Withdrawn Date

About this training

Summary

This document establishes a test method for determining the antibacterial activity of materials
containing an indoor-light-active photocatalytic material on the surface. The antibacterial reduction
rate is determined by measuring the survival of bacteria after illumination with indoor light. This test
assumes a surface with high potential of possible person contact with bacteria. This test is designed
to evaluate the suppression of contact infection of bacteria using an indoor-light-active photocatalytic
material under indoor lighting environment.
It is intended for use with different kinds of indoor-light-active photocatalytic materials used in
construction, for example, flat sheets, board or plate shapes, which are the basic forms of materials for
various applications. It is not applicable to powder, granular, or porous indoor-light-active photocatalytic
materials, as well as cloths or textiles.
It is applicable to indoor-light-active photocatalytic materials produced for antibacterial application.
Other types of indoor-light-active photocatalytic materials applications, i.e. decomposition of water
contaminants, self-cleaning, antifogging, and air purification, are non-applicable by this method.