ISA 71.04-1985
- Environmental Conditions for Process Measurement & Control Systems: Airborne Contaminants
- standard by The International Society of Automation, 04/01/1985
- Category: ISA
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Formerly S71.04-1985. Classifies airborne contaminants that may affect process measurement and control instruments. This classification system provides a means of specifying the type and the concentration of airborne contaminants to which a specified instrument may be exposed. This standard is limited to airborne contaminants and biological influences only, covering contamination influences that affect industrial process measurement and control systems.
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