ISO 4768:2023 プラスチックおよびその他の非多孔質表面上の抗バイオフィルム活性の測定方法 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance.

Introduction

Biofilms are known to be compositions of substances such as polysaccharides, lipids, and nucleic acids produced by microorganisms and the cells of microorganisms, and are widely found in our living environment as visible harms such as slimes ここで, water is present.

ISO 22196 on antibacterial test and ISO 21702 on antiviral test are the test methods for evaluating “invisible hygiene” on the surface of non-porous products. Similarly, ISO 20743 on antibacterial test and ISO 18184 on antiviral test are the test methods for evaluating the same of porous products.

This document describes how to evaluate products that are treated to suppress biofilm formations on the non-porous surfaces.

1 Scope

This document specifies a test method to evaluate the anti-biofilm activity of anti-biofilm treated plastics and other non-porous surfaces of products, including intermediate products. It is applicable to products such as plastics, coating materials, ceramics, stainless steels and rubber. Textile and photocatalytic materials are out of its scope.

This method is intended to be a screening test for material development, and it is not expected to reflect effects observed in the actual environment in which materials will be deployed. A “Crystal violet staining – Absorbance measurement assay” is used to quantify the amount of biofilm formation in this document.

2 Normative references

There are no normative references in this document.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Bibliography