21. UoF equipment_and_enginneering_parts
-equipments
-engineering_parts
-organisation_numbers
22. UoF flow_and_operation
-opcrating_conditions (?)
-pipe_run_state
23. UOF instruments and control
-instruments
-controls
24. UoF maintenance_and_repair
-maintenance
-performance (?)
-planned_maintenance
-repairs
25. UoF pipe_assemblies (proposed replaced by ship_manufacturing_definitions UoF)
-assembly_manufacturing_definitions** (introduce ship_manufacturing_definitions UoF instead)
-piping_assemblies** (proposed moved into ship_manufacturing_definitions UoF)
26. UoF pipe_stress_data
-expansion_joints
-pipe_stress
27. UoF pipe_testing
-piping_system_test
28. UoF piping_parts
-pipe_items
-pipe_parts
29. UoF piping_specification
-piping_specifications
30. UoF valves
-valves
Following ones almost only 216:
31. UoF offset_table_representation
-offset_table_representation
31. UoF ship_design_parameters
-moulded_form_characteristics
31. UoF hydrostatics
-intact_stability
-hydrostatic_displacement_conditions
-hydrostatics
-damage_stability (215 only)
