(Recommended Practice) provides critical guidelines for the Instrumentation, Control, and Protective Systems for Gas Fired Heaters . It is a primary industry standard used in petroleum refineries, petrochemical, and chemical plants to ensure the safe and efficient operation of process heaters . Core Focus Areas
Human factors and operations
API RP 556 provides essential guidelines for the installation and operation of instrumented systems for gas-fired heaters in refining and petrochemical applications. The standard addresses burner management, process control, and safety interlocks, which are currently being updated from a Recommended Practice (RP) to a multi-part Standard (Std). For official access, you can review read-only versions of many standards in the API IBR Reading Room or purchase them via the API Webstore. eballotprodstorage.blob.core.windows.net api rp 556 pdf
