GB/T 21447-2008 "Code for External Corrosion Control of Steel Pipelines" systematically stipulates the requirements for external corrosion control of steel pipelines. The standard involves external corrosion environment assessment, anti-corrosion layer selection and construction specifications, design and installation of cathode protection systems, and corrosion monitoring, detection and evaluation methods. It clarifies the technical indicators and operation procedures of each link, and provides comprehensive technical guidelines and unified standards for effectively preventing external corrosion of steel pipelines, ensuring safe operation of pipelines and prolonging service life.
| Status | Abolish |
|---|---|
| CCS | E98 | ICS | 75.200 |
| Release Date | 2008-02-13 00:00:00 | Implementation Date | 2008-08-01 00:00:00 |