塑料 聚氨酯生产用聚醚多元醇 第4部分：钠含量和钾含量的测定（英文版）
Plastics—Polyether polyols for use in the production of polyurethane—Part 4: Determination of sodium and potassium content
标准状态
基本信息
标准简介
This document describes three methods for the determination of the sodium content and potassium content in polyether polyols for use in the production of polyurethane. — Method A: atomic emission spectrometry (AES). Depending on the instrument used and the method of preparing the test solution, this method is further divided into the flame photometer solution method, the flame photometer ashing method and the atomic absorption spectrometer emission spectrometry. — Method B: atomic absorption spectrometry (AAS). — Method C: inductively coupled plasma optical emission spectrometry (ICP-OES). This document is applicable to the determination of the sodium content and potassium content by producers or users of polyether polyols or by third parties in scenarios such as research and development, quality control, process control or specific testing.
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