ISO 17226-2
Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis
| Organization: | ISO |
| Publication Date: | 1 December 2018 |
| Status: | active |
| Page Count: | 14 |
| ICS Code (Leather and furs): | 59.140.30 |
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.
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