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ISA 71.04

2013 Edition, August 16, 2013

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Environmental Conditions for Process Measurement and Control Systems: Airborne Contaminants



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Product Details:

  • Revision: 2013 Edition, August 16, 2013
  • Published Date: August 16, 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: International Society of Automation (ISA)
  • Page Count: 30
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

This standard covers airborne contaminants and biological influences that affect industrial process measurement and control equipment, electronic office equipment, and data center and network equipment. Specific examples of electronic office equipment include: laptop computers, desktop computers, workstations, servers, data storage hardware, terminals, displays, laser and inkjet printers, copiers, and fax machines. Examples of data center equipment include: servers, switches, routers, displays, keyboards, data storage hardware, power distribution equipment, and climate control equipment such as heating, ventilating, and air-conditioning (HVAC). Some examples of networking equipment include telecommunications hardware, switches, and routers.

This standard establishes airborne contaminant classes for fixed (non-mobile) installations during normal operation (non-emergency conditions) or during transportation and storage.

The classes of conditions stated in this standard are suitable for electronic equipment in office, data center, networking, and process control environments. Activities addressed by this standard in these environments include design, manufacturing, sales, installation, test, use, and maintenance. These classes may also be used as a guide when establishing requirements for environmental control of buildings or other protective housings for industrial process measurement and control systems.

These classifications pertain only to the environment external to the equipment that may affect the equipment externally or internally.

The effects of environmental conditions on the safety, comfort, and performance of operating and maintenance personnel are not considered in this standard.

This standard covers airborne contaminants and biological influences that affect electronic equipment. Specifications for other environmental conditions, including nuclear radiation and hazardous atmospheres, are beyond the scope of this standard.

HVAC equipment used in IT/data communications applications are commonly referred to as computer room air conditioning (CRAC) units and/or computer room air handling (CRAH) units.