Standards Development
This document specifies test methods of exchange capacity of styrene strong-acid cation exchange resins in sodium form.
Exchange capacity reflects the limit value of exchangeable ions in practical use, which is the most significant chemical property of ion exchange resins.The strong-acid cation exchange resin in sodium form is widely applied in water treatment field. It has largescale production and usage.There is no unified method in the world about the determination of exchange capacity of strong-acid cation exchange resins in sodium form, which is bound to cause a lot of inconvenience to all parties concerned. Therefore, a unified standard method needs to be developed. This method is one of the test methods of ion exchange resin series.
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