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IEC 60654-4 Ed. 1.0 b:1987
Operating conditions for industrial-process measurement and control equipment. Part 4: Corrosive and erosive influences
Considers the corrosive and erosive industrial environment to which land-based and offshore industrial-process measurement and control systems or parts of systems may be exposed during operation, during periods when they are installed but inactive, during storage or transportation. Maintenance and repair conditions are not considered.
International Electrotechnical Commission [iec]