| 序号 | 测试项目 | I类 | II类 | III类 | IV类 | V类 |
| 1 | pH | 6.5~8.5 | 5.5~6.5, 8.5~9.0 | 5.5, >9.0 | ||
| 2 | 总硬度(以CaCO3计) (mg/L) | ≤150 | ≤300 | ≤450 | ≤650 | >650 |
| 3 | 溶解性总固体(mg/L) | ≤300 | ≤500 | ≤1000 | ≤2000 | >2000 |
| 4 | 硫酸盐(mg/L) | ≤50 | ≤150 | ≤250 | ≤350 | >350 |
| 5 | 氯化物(mg/L) | ≤50 | ≤150 | ≤250 | ≤350 | >350 |
| 6 | 铁Fe (mg/L) | ≤0.1 | ≤0.2 | ≤0.3 | ≤2.0 | >2.0 |
| 7 | 锰Mn(mg/L) | ≤0.05 | ≤0.05 | ≤0.1 | ≤1.5 | >1.5 |
| 8 | 硝酸盐(以N计) (mg/L) | ≤2.0 | ≤5.0 | ≤20 | ≤30 | >30 |
| 9 | 亚硝酸盐(以N计) (mg/L) | ≤0.01 | ≤0.1 | ≤1.0 | ≤4.8 | >4.8 |
| 10 | 氨氮NH4 (mg/L) | ≤0.02 | ≤0.1 | ≤0.5 | ≤1.5 | >1.5 |
| 11 | 氟化物(mg/L) | ≤1.0 | ≤1.0 | ≤1.0 | ≤2.0 | >2.0 |
| 12 | 汞Hg (mg/L) | ≤0.0001 | ≤0.0001 | ≤0.001 | ≤0.002 | >0.002 |
| 13 | 铬(六价) Cr6+ (mg/L) | ≤0.005 | ≤0.01 | ≤0.05 | ≤0.1 | >0.1 |
| 14 | 氰化物(mg/L) | ≤0.001 | ≤0.01 | ≤0.05 | ≤0.1 | >0.1 |
| 15 | 铅Pb (mg/L) | ≤0.005 | ≤0.005 | ≤0.01 | ≤0.1 | >0.1 |
| 16 | 砷As (mg/L) | ≤0.001 | ≤0.001 | ≤0.01 | ≤0.05 | >0.05 |
| 17 | 硒Se (mg/L) | ≤0.01 | ≤0.01 | ≤0.01 | ≤0.1 | >0.1 |
| 18 | 镉Cd (mg/L) | ≤0.0001 | ≤0.001 | ≤0.005 | ≤0.01 | >0.01 |