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ISO/FDIS 21256-2

Fine bubble technology — Cleaning applications — Part 2: Test method for cleaning machine oil stains from the surfaces of machined metal parts

General information

50.20     Oct 30, 2026

ISO

ISO/TC 281

International Standard

07.030  

Scope

This document specifies a test method for removal of machine oil stain from a noncorrosive metal surface using fine bubble water. A test is provided to show the comparative cleaning advantage of adding fine bubbles to the water.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 21256-2:2020

NOW

PROJECT
ISO/FDIS 21256-2
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Oct 30, 2026

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