Compare your existing fired heater/BMS against the RP 556 checklist. Typical gaps found:
Ensuring safe sequences during startup, operation, and shutdown. Measurement Reliability: api rp 556 pdf
If you work for a university, some academic libraries subscribe to standards databases (like ANSI Webstore or ASTM Compass) that include API RP 556. Check your library portal before purchasing. Compare your existing fired heater/BMS against the RP
to provide more granular technical requirements for different heater types. Dedicated to fuel gas heaters. Overlay for fuel oil heaters. Overlay for steam methane reforming (SMR) furnaces. How to Access the Text Check your library portal before purchasing
: Licensed resellers like SAI Global also provide the document for purchase .
While it uses the term "shall" 39 times (indicating requirements), industry legal rulings from Kenexis have clarified that many "should" items are recommendations to be evaluated via site-specific risk analysis rather than absolute mandates . Accessing the Full Document
The official source. You can purchase a single-user PDF download. Prices range from $180 to $250 depending on member status (API members get a discount). You receive a DRM-protected or watermarked PDF.