Water Quality Conversion Chart
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1Water Quality Conversion Chart
Ohms – µmhos – ppm – ppb - GPG
WATER QUALITY CONVERSION CHART
Industrial Water Purification
(800) CAL-WATER
Conductivity
Resistivity
Microseimens
Dissolved Solids
Maximum
Minimum
3
3
Ohms/cm
(Micromhos/cm
.)
(as CaCO
)
Possible
Possible
3
@ 25 C
@ 25 C
ppm
ppb
GPG
pH
pH
18,000,000
0.056
0.028
28
7.8
6.2
16,000,000
0.063
0.031
31
7.9
6.1
14,000,000
0.071
0.036
36
7.9
6.1
12,000,000
0.083
0.042
42
8.0
6.0
10,000,000
0.100
0.050
50
8.1
5.9
8,000,000
0.125
0.063
63
8.2
5.8
6,000,000
0.170
0.083
83
8.3
5.7
5,000,000
0.200
0.100
100
8.4
5.6
4,000,000
0.250
0.125
125
8.5
5.5
3,000,000
0.33
0.17
167
8.6
5.4
2,000,000
0.5
0.25
250
8.8
5.2
1,000,000
1
0.5
500
9.1
4.9
500,000
2
1
1000
9.4
4.6
250,000
4
2
0.1
9.7
4.3
166,667
6
3
0.2
9.9
4.1
125,000
8
4
0.2
10.0
4.0
100,000
10
5
0.3
10.1
3.9
83,333
12
6
0.4
10.2
3.8
71,429
14
7
0.4
10.2
3.8
62,500
16
8
0.5
10.3
3.7
55,556
18
9
0.5
10.4
3.6
50,000
20
10
0.6
10.4
3.6
45,455
22
11
0.6
10.4
3.6
41,667
24
12
0.7
10.5
3.5
38,462
26
13
0.8
10.5
3.5
35,714
28
14
0.8
10.5
3.5
33,333
30
15
0.9
10.6
3.4
25,000
40
20
1.2
10.7
3.3
20,000
50
25
1.5
10.8
3.2
13,333
75
38
2.2
11.0
3.0
6,667
150
75
4.4
11.3
2.7
4,000
250
125
7
11.5
2.5
2,500
400
200
12
11.7
2.3
2,000
500
250
15
11.8
2.2
1,429
700
350
20
12.0
2.0
1,000
1000
500
29
12.1
1.9
667
1500
750
44
12.3
1.7
500
2000
1000
58
12.4
1.6
400
2500
1250
73
12.5
1.5
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