GB 50015-2019 第4.9.4条
- **** | Swimming pools shall be equipped with disinfection devices, preferably chlorine or ozone disinfection. Residual chlorine levels: free residual chlorine 0.3–0.5 mg/L, combined residual chlorine ≤0.4 mg/L.
- **** | Swimming pools shall be equipped with disinfection devices, preferably chlorine or ozone disinfection. Residual chlorine levels: free residual chlorine 0.3–0.5 mg/L, combined residual chlorine ≤0.4 mg/L.
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