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ISO 17226-2:2018

Leather — Chemical determination of formaldehyde content — Part 2: Method using colorimetric analysis

Dec 21, 2018

General information

90.93     Mar 26, 2025

ISO

IULTCS

International Standard

59.140.30  

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Scope

This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on colorimetric analysis, is not intended to be used for a precise quantification of formaldehyde.
The formaldehyde content is taken to be the quantity of free-formaldehyde and formaldehyde extracted through hydrolysis contained in a water extract from the leather under standard conditions.
This process is not absolutely selective for formaldehyde. Other compounds such as extracted dyes could interfere at 412 nm.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 17226-2:2008

WITHDRAWN
ISO 17226-2:2008/Cor 1:2009

NOW

PUBLISHED
ISO 17226-2:2018
90.93 Standard confirmed
Mar 26, 2025