
Preparation for Operation
40
Pure water criterion (JIS K0557: 1998 “Water used for industrial water and
wastewater analysis”)
Tip
The amount of pure water to be consumed differs depending on the measurement range. Use the table
below for reference (tank capacity: 20 L).
Pure water consumption (per measurement)
Pure water consumption (per month)
Item
A1
A2
A3
A4
Electrical conductivity mS/m
(25
C)
0.5 or less
0.1 or less
0.1 or less
0.1 or less
Organic carbon (TOC) mg C/L
1 or less
0.5 or less
0.2 or less
0.05 or less
Zinc
g Zn/L
0.5 or less
0.5 or less
0.1 or less
0.1 or less
Silica
g SiO
2
/L
-
50 or less
5.0 or less
2.5 or less
Chloride ion
g Cl/L
10 or less
2 or less
1 or less
1 or less
Sulfate ion
g SO
4
/L
10 or less
2 or less
1 or less
1 or less
TP measurement
range (mg/L)
TN measurement range (mg/L)
2
5
10
20
50
100
200
500
1000
0.5
36
36
40
40
48
-
-
-
-
1
36
36
40
40
48
44
-
-
-
2
40
40
44
44
52
48
56
-
-
5
40
40
44
44
52
48
56
64
-
10
48
48
52
52
60
56
64
72
72
20
-
44
48
48
56
52
60
68
68
50
-
-
56
56
64
60
68
76
76
100
-
-
-
64
72
68
76
84
84
200
-
-
-
-
72
68
76
84
84
Unit: mL
TP measurement
range (mg/L)
TN measurement range (mg/L)
2
5
10
20
50
100
200
500
1000
0.5
25.9
25.9
28.8
28.8
34.6
-
-
-
-
1
25.9 25.9 28.8 28.8 34.6 31.7 -
-
-
2
28.8 28.8 31.7 31.7 37.4 34.6 40.3 -
-
5
28.8 28.8 31.7 31.7 37.4 34.6 40.3 46.1 -
10
34.6 34.6 37.4 37.4 43.2 40.3 46.1 51.8 51.8
20
-
31.7 34.6 34.6 40.3 37.4 43.2 49.0 49.0
50
-
-
40.3 40.3 46.1 43.2 49.0 54.7 54.7
100
-
-
-
46.1 51.8 49.0 54.7 60.5 60.5
200
-
-
-
-
51.8
49.0
54.7
60.5
60.5
Unit: L