Excessive concentrations of certain airborne contaminants can cause the server's electronic components to corrode and fail. Take measures to prevent contaminants such as metal particles, atmospheric dust, solvent vapors, corrosive gasses, soot, airborne fibers, or salts from entering, or being generated within, the data center.
Avoid locating the data center near print rooms, machine shops, wood shops, loading docks, and areas that involve the use of chemicals or generate toxic vapors or dust. Ensure the exhaust from generators or other sources of exhaust do not enter the intakes of air conditioning systems serving the data center. If the data center must be located near these hazardous locations, add and regularly maintain adequate filtering systems.
Note - To avoid introducing airborne contaminates to the data center, unpack the server outside of the data center and then move the server to its final location.
Table 2 Maximum Allowable Contaminate Levels
Table 3 Maximum Gaseous Contaminate Severity Levels for Copper and Silver
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).