Operating temperature de-rating specifications
Table 15. Operating temperature
Operating temperature de-rating
Specifications
Up to 35°C (95°F)
Maximum temperature is reduced by 1°C/300 m (1°F/547 ft)
above 950 m (3,117 ft).
35°C to 40°C (95°F to 104°F)
Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above
950 m (3,117 ft).
40°C to 45°C (104°F to 113°F)
Maximum temperature is reduced by 1°C/125 m (1°F/228
Particulate and gaseous contamination specifications
Table 16. 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 only to data center environments. 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.
Table 17. Gaseous contamination specifications
Gaseous contamination
Specifications
Copper coupon corrosion rate
<300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985.
Silver coupon corrosion rate
<200 Å/month as defined by AHSRAE TC9.9.
NOTE:
Maximum corrosive contaminant levels measured at ≤50% relative humidity.
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Technical specifications
