ISO 20304-2:2024 PDF

Name: ISO 20304-2:2024 — Fine bubble technology — Water treatment applications — Part 2: Test methods using Escherichia coli as a test micro-organism
SKU: ISO 20304-2:2024
Price: 25 EUR
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Fine bubble technology — Water treatment applications — Part 2: Test methods using Escherichia coli as a test micro-organism

Название (английский):

ISO 20304-2:2024

Fine bubble technology — Water treatment applications — Part 2: Test methods using Escherichia coli as a test micro-organism

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 21
Дата публикации:: 16 января 2024 г.
Издание:: ISO IS 20304 edition 1 version 1
ICS:: 07.030

Тип поставки:

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Язык документа:

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Срок поставки:4 раб. дн. (перевод)

Цена:315 €

Описание (английский):

This document specifies a test method for assessing bactericidal viability of Escherichia coli as a test micro-organism, in dispersions of various fine bubbles generated by the hydrodynamic cavitation of water medium.

Abstract

Overview

Key Topics

Fine bubble generation: Describes the process of generating fine bubbles through hydrodynamic cavitation, a physical method involving pressure changes, and details test facility requirements.
E. coli as indicator organism: Uses specific E. coli strains as a reliable model organism for assessing bactericidal effects in water treatment.
Bactericidal viability measurement: Outlines procedures for determining the reduction of viable E. coli cells after exposure to fine bubble-treated water, using ATP luminescence as an indicator.
Safety precautions: Stresses biosafety requirements for microbiological work, laboratory setup, and proper handling of pathogenic organisms.
Experimental conditions: Details controlled variables such as initial suspension temperature, contact times, and the importance of using standardized reagents and equipment.
Calculation of disinfection efficiency: Specifies formulas to quantify reduction in bacterial viability and overall disinfection performance.

Applications

ISO 20304-2:2024 serves multiple practical functions in the global water treatment and environmental technology sectors:

Water disinfection validation: Helps manufacturers, utility operators, and researchers assess and document the effectiveness of fine bubble-based disinfection systems.
Technology development: Supports innovation and optimization of fine bubble generators and treatment processes by providing standardized test metrics.
Quality assurance: Enables laboratories and facilities to verify compliance with international standards for municipal, industrial, and domestic water treatment.
Comparative studies: Facilitates comparison of various fine bubble generation techniques and their impact on microbial contamination, supporting technology transfer and international trade.
Environmental safety: Provides methods to ensure that water treated using fine bubble technology achieves necessary public health safety benchmarks by targeting indicator organisms like E. coli.
Research and interlaboratory testing: Offers a robust protocol for conducting reproducible and repeatable laboratory tests, essential for research validation and proficiency testing.

Related Standards

Organizations addressing fine bubble technology and water treatment may find the following international standards relevant:

ISO 20480 series - General framework and terminology for fine bubble technology
ISO 22196 - Measurement of antibacterial activity on plastics and other non-porous surfaces
EN 1040 - Quantitative suspension test for the evaluation of basic bactericidal activity of chemical disinfectants
ISO 9308-1 - Water quality - Enumeration of Escherichia coli and coliform bacteria

These standards collectively provide a foundation for evaluating water disinfection performance, bacterial reduction, and laboratory testing procedures in various contexts.

By adopting ISO 20304-2:2024, organizations and laboratories can ensure consistent, reliable assessment of water disinfection using fine bubble technology, supporting regulatory compliance, public health, and market acceptance of innovative water treatment solutions. Fine bubble technology, when evaluated according to this standard, demonstrates its potential for effective water purification and plays a crucial role in advancing sustainable water treatment practices worldwide.

Технические детали

Технический комитет: ISO/TC 281 - Fine bubble technology
SKU: ISO 20304-2:2024

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Каталог

BS ISO 20480-2:2018

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Fine bubble technology. General principles for usage and measurement of fine bubbles. Categorization of the a…

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ISO 22196:2007

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Plastics — Measurement of antibacterial activity on plastics surfaces

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ISO 9308-1:2014/Amd 1:2016