Research Project code：0250004998
Update date：Dec. 17, 2001
Accuracy management based on the tap water management plan of Gunma Prefecture: Report in 1997 (color and iron)
1998 - 1998
Investigating Researcher (2)：
The accuracy management was implemented for tap water testing facilities in the prefecture based on the tap water management plan of Gunma Prefecture. In fiscal 1997, 14 organizations were participated and test items were color and iron. As the result, the coefficient of variation between the organizations was 4.1% and the average recovery rate was 90% for the color. For iron, the coefficient of variation between the organizations was 13.9% and the average recovery rate was 140%. The effects of pollution from laboratory indoor environments and instruments.
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