标准编号：ISO 18218-1:2015
中文名称：皮革 乙氧基化烷基苯酚的测定 第1部分：直接法
英文名称：Leather — Determination of ethoxylated alkylphenols — Part 1: Direct method
发布日期：2015-06
标准范围
This part of ISO 18218 is a method for determining ethoxylated alkylphenols (nonyphenol ethoxylate[NPEOn with 1 ≤ n ≤ 16] and octylphenol ethoxylate [OPEOn with 1 ≤ n ≤ 16]) in leather. This directmethod is especially suitable where a larger number of leather samples are to be checked for the presenceof ethoxylated alkylphenols.This method requires the use of high-performance liquid chromatography (HPLC) with triple quadrupolemass spectrometer (MSMS) to identify and quantify the ethoxylated alkylphenols.NOTE 1 In the leather industry, the most commonly used commercial ethoxylated alkylphenol is the NPEOwith an average of 9 EO. It has an optimum cloud point in water for the typical leather processing temperatures of40 °C to 55 °C.NOTE 2 ISO 18218-1 and ISO 18218-2 use different solvents for the extraction of the ethoxylated alkylphenolsfrom leather. Consequently, the two analytical methods are expected to give similar trends but not necessarily thesame absolute result for the ethoxylated alkylphenol content in leather.
立即下载标准文件