ISO 17226-2:2018 皮革 甲醛含量的化学测定 第2部分：比色分析法

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

本文件规定了皮革中游离甲醛和释放甲醛的测定方法。该方法基于比色分析，不用于甲醛的精确定量。甲醛含量是指在标准条件下，通过水解从皮革水提取物中提取的游离甲醛和甲醛的量。这个过程对甲醛不是绝对有选择性的。其他化合物，如提取染料，在412nm处可能会产生干扰。

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.

标准预览图