ISO/FDIS 21256-2

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

General information

Current stage: 50.00 Final text received or FDIS registered for formal approval Sep 15, 2026

Originator: ISO

Owner: ISO/TC 281 Fine bubble technology

Type: International Standard

ICS: 07.030 Physics. Chemistry

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

IN_DEVELOPMENT
ISO/FDIS 21256-2
50.00 Final text received or FDIS registered for formal approval
Sep 15, 2026