表 1. Comparison of microbiology parameters in 7 water quality standards related to direct drinking water.
7项直饮水相关水质标准中微生物指标比较
| Parameter | GB
5749-2006 |
CJ
94-2005 |
T/WPIA
001-2017 |
DB 32/
761-2005 |
Sanitary Standards
for Drinking Water (2001) |
Reverse
Osmosis Device (2001) |
DB
29-104-2010 |
| ND: Not detected. | |||||||
| Total coliform/(CFU/100 mL) | ND | ND | ND | ND | ND | ND | ND |
| Thermotolerant coliforms/(CFU/100 mL) | ND | ND | ND | ND | ND | ND | ND |
| E. coli/(CFU/100 mL) | ND | — | ND | — | — | — | — |
| Total bacterial count/(CFU/mL) | 100 | 50 | 100 | 50 | 100 | 20 | 50 |
| Turbidity/NTU | — | — | 0.3 | — | — | — | — |
| Residual chlorine/(mg/L) | — | >0.01 | — | >0.05 | >0.05 | — | ≥0.01 |
| Ozone/(mg/L) | — | >0.01 | — | — | — | — | ≥0.01 |
| Chlorine dioxide/(mg/L) | — | >0.01 | — | — | — | — | ≥0.01 |