Table 28. Particulate contamination specifications
Particulate contamination Specifications
Air filtration Data center air filtration as defined by ISO Class 8 per ISO 14644-1
with a 95% upper confidence limit
NOTE: This condition applies to data center environments only. Air
filtration requirements do not apply to IT equipment designed to be
used outside a data center, in environments such as an office or
factory floor.
NOTE: Air entering the data center must have MERV11 or MERV13
filtration.
Conductive dust Air must be free of conductive dust, zinc whiskers, or other
conductive particles
NOTE: This condition applies to data center and non-data center
environments.
Corrosive dust
● Air must be free of corrosive dust
● Residual dust present in the air must have a deliquescent point less
than 60% relative humidity
NOTE: This condition applies to data center and non-data center
environments.
Walk-Up Edge Data Center or Cabinet (sealed, closed
loop environment)
Filtration is not required for cabinets that are anticipated to be opened
6 times or less per year. Class 8 per ISO 1466-1 filtration as defined
above is required otherwise
NOTE: In environments commonly above ISA-71 Class G1 or that
may have known challenges, special filters may be required.
Table 29. Gaseous contamination specifications
Gaseous contamination Specifications
Copper coupon corrosion rate <300 Å/month per Class G1 as defined by ANSI/ISA71.04-2013
Silver coupon corrosion rate <200 Å/month as defined by ANSI/ISA71.04-2013
Thermal restriction matrix
Table 30. Processor and heat sink matrix
Heat sink Processor TDP
STD HSK ≤ 165 W (supports only 2.5-inch drives and non-GPU
configuration)
2U HPR HSK 125 W–250 W (supports 3.5-inch drives and non-GPU
configuration)
165 W–350 W (supports 2.5-inch drives and non-GPU
configuration)
L-type HSK Supports all GPU/FPGA configurations
NOTE: All GPU/FGPA cards require 1U L-type HSK and GPU shroud.
Table 31. Label reference
Label Description
STD Standard
HPR (Silver) High performance Silver (HPR) fan
40 Technical specifications