IBM system x3530 m4 (7160k2g, 90y8826 х4, 49y3760, 00d4413) [390/402] Documentation format

Table 18. Limits for particulates and gases

Contaminant Limits

Particulate

v The room air must be continuously filtered with 40% atmospheric

dust spot efficiency (MERV 9) according to ASHRAE Standard 52.21.

v Air that enters a data center must be filtered to 99.97% efficiency or

greater, using high-efficiency particulate air (HEPA) filters that meet

MIL-STD-282.

v The deliquescent relative humidity of the particulate contamination

must be more than 60%2.

v The room must be free of conductive contamination such as zinc

whiskers.

Gaseous

v Copper: Class G1 as per ANSI/ISA 71.04-19853

v Silver: Corrosion rate of less than 300 Å in 30 days

1 ASHRAE 52.2-2008 - Method of Testing General Ventilation Air-Cleaning Devices for

Removal Efficiency by Particle Size. Atlanta: American Society of Heating, Refrigerating

and Air-Conditioning Engineers, Inc.

2 The deliquescent relative humidity of particulate contamination is the relative humidity

at which the dust absorbs enough water to become wet and promote ionic conduction.

3 ANSI/ISA-71.04-1985. Environmental conditions for process measurement and control

systems: Airborne contaminants. Instrument Society of America, Research Triangle Park,

North Carolina, U.S.A.

Documentation format

The publications for this product are in Adobe Portable Document Format (PDF)

and should be compliant with accessibility standards. If you experience difficulties

when you use the PDF files and want to request a web-based format or accessible

PDF document for a publication, direct your mail to the following address:

Information Development

IBM Corporation

205/A015

3039 E. Cornwallis Road

P.O. Box 12195

Research Triangle Park, North Carolina 27709-2195

U.S.A.

In the request, be sure to include the publication part number and title.

When you send information to IBM, you grant IBM a nonexclusive right to use or

distribute the information in any way it believes appropriate without incurring any

obligation to you.

374 System x3530 M4 Type 7160: Installation and Service Guide