Without the following information/reference data, what-if and HAZOP Reference data cannot proceed
1. Piping & Instrumentation Drawings (P & IDS), that are “as-built” verified for the existing hydrocarbon processing facilities.
2. Plot plan or equipment and main piping layout and pertinent elevation drawings, including surface drainage arrangements.
3. Cause and effects charts (SAFE charts) with schedule of alarm and trip settings.
4. P & IDS for vendor packages.
5. System design philosophy and process description.
6. Fire and explosion protection system drawings or arrangements (fire & gas
detection/alarm, protection - passive and active).
7. Chemical and physical properties of commodities involved, especially hazardous materials (Crude oil GOR, Material Safety Data Sheets (MSDS), etc.).
8. Operating procedures (including. start up or shut down) and maintenance schedules.
9. Process flow diagrams (PFDs) and material & energy balances.
10. Electrical hazardous area diagrams.
11. Full description and system design calculations of emergency shutdown (ESD)
isolation and depressing (blowdown) capabilities including headers, vents and flares.
12. Design duties and basis of calculation of all relief valves, rupture disks, etc.
13. Corrosion monitoring and prevention systems.
14. Engineering design data sheets for all plant items including vendor items.
15. Data sheets for instruments and control valves.
16. Piping and material specifications (if not indicated elsewhere).
17. Flare, vent and drainage header diagrams.
18. Electrical single line diagrams.
19. Instrumentation philosophy (local/remote control, hardwired/data highway, failure
mode(s), analog/digital, emergency alarms, etc.).
20. Drawings showing interfaces to existing systems.
21. Special studies or calculations (vapor dispersions, blast over pressure, etc.)
22. Environmental ambient data (expected temperatures, weather, seismic, etc.).
23. Utilities specifications and reliability (power, water, etc.).
24. Design codes and standards employed (API, NFPA, ANSI, ASME, NACE, etc.).
25. Manning levels, distribution of personnel, levels of supervision and evacuation routes or plans.
26. Ergonomic or human factors features (color coding, accessibility, practical use,languages and instructions, etc.).
27. Loss histories of the existing or similar facilities.