API 1127 : 1993

Section 1 - General
1.1 Objective and Scope
1.2 Glossary
1.3 Referenced Publications
1.4 Introduction
1.5 System Overview
1.5.1 Enclosed Combustion
1.5.2 Open Flares
1.5.3 Carbon Adsorption Systems
1.5.4 Refrigeration Systems
1.5.5 Lean-Oil Absorption
1.5.6 Recycling to a Plant-Fuel Gas System
1.6 Hazards
1.6.1 Fire and Explosion
1.6.2 Over- or Underpressurization
1.6.3 Overfilling
1.6.4 Misconnection of Liquid and Vapor Lines
1.6.5 Condensation in the Vapor Line
1.6.6 Pyrophoric Iron Sulfide Deposits
1.6.7 Static Electricity Discharge
Section 2 - Vessel Components and Safety and Operating
            Concerns
2.1 Vessel Components
2.2 Safety Concerns
2.2.1 General
2.2.2 Overfilling the Vessel
2.2.3 Overpressuring the Vessel
2.2.4 Misconnection of Hoses and Loading Arms
2.3 General Operating Concerns
2.3.1 Cargo Contamination
2.3.2 Valve Positioning
2.3.3 Inspection
2.3.4 Static Electricity
2.3.5 Condensate in the Vapor Header
2.3.6 Vessel Filling Rate
2.3.7 System Emergency Shutdowns and Alarms: What
        Should Be Done?
2.3.8 Pretransfer Conference
2.3.9 Vapor Balancing During Lightering
Section 3 - Shore Components and Safety and Operating
            Concerns
3.1 Shore Components
3.2 Safety Concerns
3.2.1 General
3.2.2 Overfilling the Vessel
3.2.3 Overpressuring the Vessel
3.2.4 Underpressuring the Vessel
3.2.5 Preventing Flame Propagation and Detonation
3.2.6 Misconnection of Hoses and Loading Arms
3.3 General Operating Concerns
3.3.1 Vessel and Shore Cargo Connections
3.3.2 Cargo Hoses
3.3.3 Cargo Loading Arms
3.3.4 Vessel and Shore Insulating and Grounding
3.3.5 Static Electricity
3.3.6 Vessel Filling Rate
3.3.7 System Emergency Shutdowns and Alarms: What
        Should be Done?
3.3.8 Routine System Monitoring
3.3.9 Pretransfer Conference
3.4 Before the Loading Begins
Appendix A - What is Combustion?
Appendix B - Detonations in Piping
Appendix C - Examples of Vessel and Short Components
Appendix D - Glossary
Appendix E - Brief Outline of National Emission Standard
             for Hazardous Air Pollutants (NESHAP)
             Requirements for the Dock Operator
Figures:
1. Marine Emission Control Schematic
2. Markings for Vapor Line and Vapor Hose
3. Vessel and Shore Vapor Connection
4. Insulating Flange Joint
C-1. High Level or Overfill Alarm System Pin-and-Sleeve
      Device
C-2. Connector for an Intrinsically Safe Overfill
      System
C-3. Bidirectional Detonation Arrester
C-4. Bidirectional Detonation Arrester: Crimped Ribbon
      Style
C-5. Bidirectional Detonation Arrester: Packed Style
C-6. Closed Sampling Device
C-7. Closed Gauging Device with Block Valve
C-8. Deck and Hatch Covers
C-9. Marine Sight Glass
C-10. Marine Spill Valves
C-11. Marine Spill Valve
C-12. Rupture Disk
C-13A. Combination High-Level and Overfill Sensor
C-13B. Combination High-Level and Overfill Sensor (Cont.)
C-14A. Magnetically Coupled Dipstick
C-14B. Magnetically Coupled Dipstick (Cont.)
C-15. Magnetically Coupled Dipstick with Overfill Sensor
Table:
1. Initial Fill Rate for Liquid Drop Lines

Provides guidelines for developing marine vapor control training programmes on shore and aboard ship in order to comply with U.S. Coast Guard regulations (33 Code of Federal Regulations Part 154.840 and 46 Code of Federal Regulations Part 39.10-11).