Evaluation Method of Uncertainty for Determination of Fecal Coliform in Surface Water by Multi-tube Method
According to the Determination of Water Quality,Fecal Coliform Fermentation-Multi Tube Fermentation Method(HJ 347.2-2018),the measurement uncertainty of fecal coliform in surface water was studied,and the uncertainty caused by medium weighing and solution measurement,sampling dilution of water samples and the repetitive detection of the two concentration water samples were quantified.This study concluded that the uncertainty of class A assessment is the main source of the uncertainty of fecal coliform group measurement.The analysis of uncertainty can effectively grasp the credibility and accuracy of the test results,and the established uncertainty assessment method is suitable for the uncertainty evaluation similar to the detection of fecal coliform bacteria.
NETL
NSTL
万方数据
