Caprolactam for industrial use — Determination of colour of 50 % aqueous caprolactam solution, expressed in Hazen units (platinum-cobalt scale) — Spectrometric method
工业用己内酰胺.以哈森单位(铂钴刻度)表示的50%己内酰胺水溶液颜色的测定.光谱法
发布日期:
2023-07-17
本文件规定了测定50?%己内酰胺水溶液作为样品有色杂质含量的量度。
This document specifies a spectrometric method of determining the colour, expressed in Hazen units, of a 50?% aqueous caprolactam solution as a measure of coloured impurities content of the sample.