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TABLE:
Contaminate
Hydrogen sulfide (H
Sulfur dioxide (sulfur oxide) (SO
Hydrogen chloride (HCI)
Chlorine (CI
Hydrogen fluoride (HF)
Nitrogen dioxide (nitrogen oxide) (NO
Ammonia (NH
Ozone (O
Oil vapor
Dust
Seawater (salt damage)
TABLE:
Reactivity Rate
Copper (Cu) reactivity rate
Silver (Ag) reactivity rate
For more information, refer to the ASHRAE Technical Committee 9.9 document,
Gaseous and Particulate Contamination Guidelines for Data Centers and the iNEMI
Position Statement on the Limits of Temperature, Humidity and Gaseous Contamination in
Data Centers and Telecommunication Rooms to Avoid Creep Corrosion on Printed Circuit
Boards (April 20, 2012).
Related Information
"Environmental Requirements" on page 44
■
"Loading Dock and Receiving Area Requirements" on page 55
■
"Unpack the Server" on page 76
■
46
SPARC M5-32 and SPARC M6-32 Servers Installation Guide • December 2014
Maximum Allowable Contaminate Levels
S)
2
)
2
)
3
)
3
Maximum Gaseous Contaminate Severity Levels for Copper and Silver
Tolerable Limit
Up to 7.1 ppb
)
Up to 37 ppb
2
Up to 6.6 ppb
Up to 3.4 ppb
Up to 3.6 ppb
)
Up to 52 ppb
2
Up to 420 ppb
Up to 5 ppb
Up to 0.2 mg/m3
Up to 0.15 mg/m3
Do not install the server within 0.5 km (0.31
miles) of the ocean or coastal areas, unless the
computer room uses air conditioners to filter out
airborne sea salt particles from the outside air.
Maximum Gaseous Contamination Severity Level
Less than 30 nm/month
Less than 20 nm/month
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