RP 550, Manual on Installation of Refinery Instruments and Control Systems. PART 2 (II) scan  

https://analyzedetectnetwork.com/manual.php?m=3btUvNtn4f6C

RP 550, Manual on Installation of Refinery Instruments and Control Systems. RP 550 is composed of four parts:

Part I -Process Instrumentation and Control

Part II -Process Stream Analyzers

Part III-Fired Heaters and Inert Gas Generators

Part IV-Stream Generators

----------------------------------------

Part I assays the installation of the more commonly used measuring and control instruments, as well as protective devices and related accessories;

Part II presents a detailed discussion of process stream analyzers;

Part III covers installation requirements for instruments for fired heaters and inert gas generators; and

Part IV covers installation requirements for instruments for steam generators. These discussions are supported by detailed information and illustrations to facilitate application of the recommendations.

https://www.api.org/Standards/