Table2.Limitsforparticulatesandgases
ContaminantLimits
Particulate
•Theroomairmustbecontinuouslyfilteredwith40%atmosphericdustspotefficiency
(MERV9)accordingtoASHRAEStandard52.2
1
.
•Airthatentersadatacentermustbefilteredto99.97%efficiencyorgreater,using
high-efficiencyparticulateair(HEPA)filtersthatmeetMIL-STD-282.
•Thedeliquescentrelativehumidityoftheparticulatecontaminationmustbemorethan60%
2
.
•Theroommustbefreeofconductivecontaminationsuchaszincwhiskers.
Gaseous•Copper:ClassG1asperANSI/ISA71.04-1985
3
•Silver:Corrosionrateoflessthan300Åin30days
1
ASHRAE52.2-2008-MethodofTestingGeneralVentilationAir-CleaningDevicesforRemovalEfficiencybyParticle
Size.Atlanta:AmericanSocietyofHeating,RefrigeratingandAir-ConditioningEngineers,Inc.
2
Thedeliquescentrelativehumidityofparticulatecontaminationistherelativehumidityatwhichthedustabsorbs
enoughwatertobecomewetandpromoteionicconduction.
3
ANSI/ISA-71.04-1985.Environmentalconditionsforprocessmeasurementandcontrolsystems:Airborne
contaminants.InstrumentSocietyofAmerica,ResearchTrianglePark,NorthCarolina,U.S.A.
GermanOrdinanceforWorkglossstatement
Theproductisnotsuitableforusewithvisualdisplayworkplacedevicesaccordingtoclause2ofthe
GermanOrdinanceforWorkwithVisualDisplayUnits.
DasProduktistnichtfürdenEinsatzanBildschirmarbeitsplätzenimSinne§2der
Bildschirmarbeitsverordnunggeeignet.
148ThinkServerTS460UserGuideandHardwareMaintenanceManual