Received date: 2002-03-20
Online published: 2010-10-01
The water quality automonitor, TW- 6000, produced by Beijing Purkinje General Inst rument Co.,Ltd. is adopted to examine COD, to do check test with standard method ( GB11914 1989) and to analyze the results by mathemat ical stat ist ics. It is proved that there is no not iceable dif ference between the inst rumental method and the standard method(is 0.05 and the number of samples is 15) and the two methods have similar precision and accuracy.
Key words： water quality automonitor; mathemat ical analysis; ttest
GUO Qiang, WANG Wenzhong, ZHANG Tao, WANG Jun . Check test of TW- 6000 COD automonitor with standard method[J]. Industrial Water Treatment, 2002 , 22(7) : 34 -35 . DOI: 10.11894/1005-829x.2002.22.(7).34
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