: In many papers, the number " 22 " refers to a specific reference (e.g., Searle et al. ) used to construct the index or to specific cervical/spinal deformity indices used in geriatric assessments.
: In the context of inland AIS technical specifications, FI 22 can also represent the Requested Time of Arrival (RTA) at locks, bridges, or terminals. 2. Medical & Clinical Research : In many papers, the number " 22
: Modern articles on "Smart Factory Automation" sometimes cite researchers or specific technological benchmarks (e.g., citation [22] in a paper about computer vision) under the shorthand "Fi 22". 4. Finance & Regulatory Tax Codes Finance & Regulatory Tax Codes In industrial and
In industrial and technical documentation, "FI-22" often serves as a unique identifier for hardware components or specific research citations. While less common
: It is used for Area Notices (Broadcast) , which provide vessels with critical safety and navigational information.
: In cooling system specifications (such as those for heat exchangers), FI-22 can identify a specific secondary cooling water flow indicator channel, often used to monitor flow rates in gallons per minute (gpm).
While less common, "FI-22" has historical significance in US federal tax regulations.