摘要
介绍了工业聚磷酸铵化工行业标准(HG/T2770—2008)的主要修订内容,其中包括修订标准的目的、意义,产品的分类,指标项目的增加,指标参数的修改,试验方法的变动以及标志、标签等内容。特别是新标准增加了高聚合度产品的指标项目和试验方法。重点介绍了利用端基滴定法和核磁共振仪器测定平均聚合度的方法、原理以及氮含量测定的两种试验方法的对比和试验数据。总结了新标准存在的问题。
Main contents of revision of Chemical Industry Standard of Industrial Ammonium Polyphosphate （ HG/T 2770-2008 ） , which involved revising purpose, significancy, product classification, increased items, parameter amendment, test method modification as well as product logos and tags etc. , were introduced. In particular, indexes and test method of high polymerization degree product were added in this revision. Test method and principle of average polymerization degree by end grouptitration and nuclear magnetic resonance （ NMR） as well as the comparison of determination of nitrogen content by the two mehtods and test data were introduced in detail. At last,existing problems of the new standard were sumarrized.
出处
《无机盐工业》
CAS
北大核心
2009年第4期60-62,共3页
Inorganic Chemicals Industry
关键词
聚磷酸铵
分析方法
化工行业标准
ammonium polyphosphate
analysis method
chemical industry standard
