Water Treatment Agent: Aminotris(methylenephosphonic) acid HG/T 2841-2005

Author: Chemical Industry Press
Publisher:
Publish Date: 2005-12-01
Features: This standard was revised from HG/T 2841-1997 "Aminotrisodium Phosphinate for Water Treatment Agent." The main differences between this standard and HG/T 2841-1997 are:
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- The classification of grades in the original standard was removed;
- The calcium chelating value indicator in the original standard was removed;
- The pH range "1.5-2.5" was changed to "≤2.0";
- The aminotrisodium phosphinate content indicator was added;
- The iron content indicator was added.
This standard replaces HG/T 2841-1997 upon implementation.
This standard was proposed by the Petroleum and Chemical Industry Association of the People's Republic of China.
The responsible drafting units of this standard are: Henan Jiyuan Qingyuan Water Treatment Co., Ltd., Jiangsu Jianghai Chemical Co., Ltd., and Tianjin Chemical Research and Design Institute.
The main drafters of this standard are: Wang Zhiqing, Zhao Rongming, Li Lin, Shao Hongqian, Zhu Chuanjun, and Bai Ying.
This standard is interpreted by the Water Treatment Agent Subcommittees of the National Chemical Standardization Technical Committee.
This standard was first published in 1989 and revised in 1997.