aquaMAX
TM
– Ultra 370 Series
- 7 -
1-5. Comparison of Water Quality
［
Table 1-1
］
Comparison of Water Quality according to Water Purification Method
Tap Water
Distilled
Water
Ion Exchange
Water
Ultra Pure
Water
aquaMAX CAP/ASTM
Dissolved Inorganics
(CaCO
3
, ppm)
170 0.3 0.1
∼
0.05
0.025 20
-
Resistivity (M
Ω
·
cm, 25 )
0.003 2 0.1
∼
10
18.2
0.2
∼
0.5 0.1
∼
1.0
Silica(ppm)
1 0.05 <0.01 <0.01 0.1 <0.01
Heavy Metal(ppm)
1 0.05 <0.01 <0.01 0.1 <0.01
Dissolved
Organics(ppm)
- <1 <1 <1 <1 -
Bacteria(cfu/
㎖
)
>100 <10 >100
*
<10
-
Small Particles(>5
㎛
/
㎖
)
>10,000 <100 >10,000
*
<10
-
［
Table 1-2
］
Water Classification According to CAP, ASTM Standards
Water Quality
Resistivity (M
Ω·
cm)
Conductivity (
μ
S/cm)
AquaMAX Basic Standard
0.2
∼
0.5 2.0
∼
5.0
AquaMAX Basic Standard
with Ion Exchange addition
1 ~ 15
0.03 ~ 1.0
AquaMAX Ultra Standard
18.2 0.056
Laoratory-Grade
0.1
∼
1.0 1.0
∼
10
Analytical-Grade
1.0
∼
2.0 0.5
∼
1.0
Reagent-Grade
10
∼
0.01
CAP : The College of American Pathologists
ASTM : American Society for Testing and Materials
