M00000471
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ISO DIS 17226-2 2017 Edition, October 30, 2017 Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 17226 specifies a method for the determination of free and released formaldehyde in leathers. This method is based on colorimetric analysis.
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.