GB/T 34249-2017 in English
VALIDWater treatment chemicals--Polyamines
- Issued on:2017-09-07
- Implemented on:2018-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 34249-2017水处理剂 聚胺》由TC63（全国化学标准化技术委员会）归口，TC63SC5（全国化学标准化技术委员会水处理剂分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
Interpretation of the National Standard of the People's Republic of China GB/T 34249—2017
1. Background of Standard Formulation and Analysis of Technology Evolution
Polyamines, a water treatment agent, are important chemicals for industrial water, sewage and wastewater treatment. The formulation of GB/T 34249—2017 aims to standardize the quality requirements, test methods and application standards of polyamine products to ensure their safety and effectiveness in the field of water treatment.
With the improvement of environmental protection requirements and the development of water treatment technology, polyamines, as high-efficiency flocculants, have been widely used in municipal water supply, industrial wastewater treatment and other fields. This standard combines the development trends of domestic and foreign technologies to systematically define the technical indicators of polyamines and provide a unified quality assessment system for the industry.
2. Comparison of standard frameworks
| Standard dimensions | GB/T 34249—2017 | International alignment | Comparative analysis |
|---|---|---|---|
| Technical requirements | Indicators such as solid content, rotational viscosity, and charge density are clear. | In line with relevant ISO standards, some indicators are more stringent. | Domestic standards are more stringent in impurity control. |
| Test methods | Including solid content determination, rotational viscosity test, etc. | Using internationally common analytical methods. | Some methods have been optimized and improved, such as gas chromatography for impurity detection. |
| Quality control | Supervise the entire process from raw materials to finished products. | Comply with international chemical management requirements. | The first batch inspection mechanism was introduced in China. |
3. Technical requirements and test methods for polyamines
Technical indicators:
- Solid content: 20.0% (first-class product)
- Rotational viscosity: 25.0 mPa·s (25°C)
- Charge density: 6.5 mmol/g
Test method:
Solid content determination:
Adopt drying method, accurately control temperature and time.
Rotational viscosity test:
Use rotational viscometer, measured at constant temperature.
Charge density analysis:
Based on polyvinyl alcohol potassium sulfate titration method, with indigo indicator.
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