BITMAIN AntSpace HK3 - Page 84

ANTSPACE HK3 Water cooling container & Dry-Wet Tower Product Manual
76
Table 9-3 Recommended standards for deionized water
Index
Deionized water
Reference
standards
Remarks
PH value
8.5-9.5
Intel 632983
Sulfide
<1 ppm
TC9.9/Intel 632983
Sulfate
<10 ppm
TC9.9/Intel 632983
Chloride
<5 ppm
TC9.9/Intel 632983
Bacterial
community
<100 CFUs/ml
TC9.9/Intel 632983
Total
hardness (as
CaCO3)
<20 ppm
TC9.9/Intel 632983
Conductivity
<20 us/cm
(reference value,
not mandatory)
TC9.9
High conductivity is not necessarily
unacceptable, such as 1000us/cm, as
corrosion inhibitors and fungicides
will both lead to an increase in water
conductivity. It is necessary to
understand the reasons behind the
sharp increase in conductivity trend
during circuit operation.。
Residues
after
evaporation
50 ppm
TC9.9/Intel 632983
Turbidity
<20 NTU
TC9.9/Intel 632983
Iron content
0.1 ppm
Industry standards
Copper
content
10 ppm
Industry standards
Carbon steel
corrosion rate
3 mpy
（0.075mm/a）
GB/T 50050-2017
Corrosion
rate of
copper or
stainless steel
0.2 mpy
（0.005mm/a）
GB/T 50050-2017