ISO 23641:2021 PDF

Name: ISO 23641:2021 — Flexible cellular polymeric materials — Determination of antibacterial effectiveness
SKU: ISO 23641:2021
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Flexible cellular polymeric materials — Determination of antibacterial effectiveness

Название (английский):

ISO 23641:2021

Flexible cellular polymeric materials — Determination of antibacterial effectiveness

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 27 августа 2021 г.
Издание:: ISO IS 23641 edition 1 version 1
ICS:: 83.100

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Описание (английский):

This document specifies a method of determining the antibacterial effectiveness of open-cell flexible cellular polymeric antibacterial treated materials, including their intermediate and final products. This document is suitable for flexible cellular polymeric materials because the test procedure enables the test inoculum to efficiently contact with the surface of open cell in the flexible cellular polymeric materials.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 23641:2021 specifies a laboratory method for determining the antibacterial effectiveness of open‑cell flexible cellular polymeric materials (for example, antibacterial‑treated foams used in sponges, mattresses, pillows and upholstery). The procedure is designed so the test inoculum efficiently contacts the internal open‑cell surfaces of flexible foams, enabling reliable measurement of antibacterial activity for intermediate and final products. The document includes test strains, reagents, equipment, sterilization, incubation, viable‑count measurement and reporting requirements.

Key Topics

Scope and purpose: method for open‑cell flexible cellular polymeric materials to evaluate antibacterial treatment performance.

Test organisms: both Staphylococcus aureus and Escherichia coli are required test species (specified strains are listed in the standard).

Antibacterial activity: expressed as the log difference in viable cell counts between treated and untreated material; activity ≥ 2.0 is judged significant.

Test procedure elements:

Preparation and sterilization of specimens and apparatus (dry‑heat and high‑pressure steam sterilization are detailed; autoclave condition given as (121 ± 2) °C and (103 ± 5) kPa).
Media and reagents (nutrient media, PBS‑type buffers, surfactant such as polysorbate 80).
Incubation and agitation (example shaker settings provided: ~150 ± 10 rpm with ~30 ± 5 mm amplitude).
Viable cell counting and result expression (pour plate method is included as an annex).

Equipment guidance: incubator, autoclave, biological safety cabinet, sterilized cups and shaker specifications are described to ensure repeatability.

Safety note: users should be familiar with microbiology and apply appropriate biosafety practices.

Applications

Product quality and claims verification: manufacturers of antibacterial‑treated open‑cell foams (kitchen sponges, mattress pads, cushions) can use ISO 23641 to substantiate antibacterial performance.

Third‑party testing and certification: independent laboratories and test houses can adopt the method for product evaluation and compliance testing.

R&D and supplier control: materials scientists and quality teams can use the standard during development, production control and supplier acceptance testing.

Related standards

ISO 1923 - Cellular plastics and rubbers - Determination of linear dimensions.

ISO/IEC Directives - referenced for editorial and procedural context.

Keywords: ISO 23641:2021, antibacterial effectiveness, flexible cellular polymeric materials, open‑cell foam testing, Staphylococcus aureus, Escherichia coli, antibacterial activity, foam antibacterial test.

ISO 23641:2021 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Who should use this standard

Related standards

Технические детали

BS ISO 23641:2021

Flexible cellular polymeric materials. Determination of antibacterial effectiveness.

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