 
                
| index item | index | 
| total alkalinity (based on nh4hco3), % | 99.0~100.5 | 
| chloride (based on c1) % | ≤0.007 | 
| sulfur compound (based on so4) % | ≤0.003 | 
| nonvolatile matter % | ≤0.05 | 
| inorganic arsenic (based on as)/(mg/kg) | ≤2 | 
| plumbum (pb)/(mg/kg) | ≤2 | 
| sulfonate (based on sdbs) (mg/kg) | ≤10 |