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2. Characteristic values
The characteristic quantities of commercially available nanofiltration membranes have been grouped into 8 groups. These are :
1 - supply, specifying manufacturer, brand and membrane code;
2 - structural properties, which indicate the nature of the active layer;
3 - physico-chemical properties, which include cut-off values, rejection rate and the type of compound used for measurement;
4 - transfer properties, which only include flow density to water;
5 - mechanical properties, giving maximum or recommended working pressure;
6 - the outfit, which indicates the temperature and pH of the environment;
7 - the type of module produced and its model...
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Characterization and properties of matter
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Characteristic values
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In Engineering Techniques
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The Ultimate Scientific and Technical Reference