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GB/T 21447-2018 English PDF (GBT21447-2018)

GB/T 21447-2018 English PDF (GBT21447-2018)

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GB/T 21447-2018: Specifications for steel pipeline external corrosion control
This Standard specifies the minimum requirements for the design, construction, and management, etc. of steel pipeline external corrosion control engineering, including basic provisions, anticorrosion coating design, cathodic protection design, interference mitigation, construction and acceptance, operation and maintenance management, and other contents. This Standard is applicable to the external corrosion control of oil, gas, and water pipelines, which are newly-built, expanded, and re-built overland and subsea, with conveying medium temperature of less than 100 Celcius.

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