Recovered Salt for Ion-Exchange Membrane Caustic Soda Production

This standard specifies product requirements for recovered salt used in ion-exchange membrane caustic soda production and applies to quality control and use management of recovered salt generated during production in the chlor-alkali industry. Relevant manufacturers shall inspect and control the quality of recovered salt in accordance with this standard, ensuring that it meets the requirements for use in ion-exchange membrane caustic soda production processes, thereby safeguarding product quality, stable operation of production facilities, and resource recycling.