This standard specifies the membrane filter method for the determination of fecal coliforms in water. This standard is applicable to the determination of fecal coliforms in surface water, groundwater, domestic sewage and industrial wastewater. The detection limit of this method: when the inoculation volume is 100ml, the detection limit is 10CFU/L; when the inoculation volume is 500ml, the detection limit is 2CFU/L.
HJ 347.1-2018 history
2018HJ 347.1-2018 Water Quality Determination of Fecal Coliforms by Membrane Method
2007HJ/T 347-2007 Water quality. Determination of fecal coliform. manifold zymotechnics and filter membrane
HJ 347.1-2018 Water Quality Determination of Fecal Coliforms by Membrane Method was changed to HJ/T 347-2007 Water quality. Determination of fecal coliform. manifold zymotechnics and filter membrane.