General Administration of Quality Supervision,Inspection and Quarantine of the Peoples Republic of China and Standardization Administration of the Peoples Republic of China
发布日期:
2011-12-30
实施日期:
2012-09-01
标准状态:
现行
翻译语言:
英文
文件格式:
PDF
中文字符数:
20000 字
翻译价格(元):
1200 元
交付时间:
付款后 1-3工作日
This standard specifies the determination methods for mono-chloroacetic acid (mono-chloroacetate) and di-chloroacetic acid (di-chloroacetate) in surfactants by high performance liquid chromatography (HPLC) method and ion chromatography (IC) method.
This standard is applicable to surfactants with mono-chloroacetic acid or sodium mono-chloroacetate as raw material,such as alcohol ethoxylated carboxylate (AEC),undecyl imidazoline carboxylate,fatty alkyl dimethyl betaine and fatty acetyl propyl dimethyl betaine,to determine the mono-chloroacetic acid (mono-chloroacetate) and di-chloroacetic acid (di-chloroacetate) content.When the expected mono-chloroacetic acid (mono-chloroacetate) and/or di-chloroacetic acid (di-chloroacetate) content in the test sample is out of the range of the calibration curve,any of following measures is recommended:reduction of test sample mass in sample preparation procedure,dilution of test solution and increase of the standard solution concentration.
