标准编号：ISO 17226-2:2018
中文名称：皮革 甲醛含量的化学测定 第2部分：比色分析法
英文名称：Leather — Chemical determination of formaldehyde content — Part 2: Method using colorimetric analysis
发布日期：2018-12
标准范围
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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