ISO 20304-1:2020

Fine bubble technology — Water treatment applications — Part 1: Test method for evaluating ozone fine bubble water generating systems by the decolorization of methylene blue

Publication date: Dec 4, 2020

General information

Current stage: 90.60 Effective date: Mar 5, 2026

Originator: ISO

Owner: ISO/TC 281

Type: International Standard

ICS: 07.030

Languages: English

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Status: Published

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Scope

This document specifies a test method to assess the performance of ozone fine bubble water generating systems used for decolorizing water-soluble dye in e.g. wastewater and industrial water. This document does not address the impact of ozone on health and environment.

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PUBLISHED
ISO 20304-1:2020
90.60 Close of review
Mar 5, 2026