Record of Obstruction Investigation and Internal Condition of Fire Protection System Piping
Annual Ice Obstruction on Internal
Investigation applicable? 5 Year Investigation and Prevention
1. System in service before
conducting investigation?
9. System in service before conducting
investigation?
2. Pertinent parties notified before
conducting investigation?
10. Pertinent parties notified before
conducting investigation?
3. System impairment program
implemented before conducting
investigation?
11. Adequate drainage ensured before
draining system?
4. Piping internally inspected for ice
obstruction at entrance points to
refrigerated areas?
12. System impairment program
implemented before conducting
investigation?
5. Alternative non-destructive
examination method utilized?
13. Flushing connection of one main
and sprinkler of one branch line
removed?
6. Evidence of ice obstruction found?
14. Alternative non-destructive
examination method utilized?
7. Additional piping exmained to
ensure no ice blockage exists if "NO"
on item #6 above?
15. Foreign material indicated by
non-destructive examination method?
8. Pertinent parties notified of
investigation conclusion?
16. Interior of main, branch line, and
sprinkler outlet checked for presence
of tubercules or slime?
COMMENTS:
17. Any tubercles or slime observed?
18. Complete flushing program
implemented where observed material
sufficient to obstruct sprinklers?
Description:
Date:
Testing for Microbiologically influenced corrosion (MIC)
19. Tubercules or slime (if present)
tested for indications of MIC?
Description:
Date:
20. Material test results do not indicate
presence of MIC?
Desciption:
Date:
21. MIC abatement / monitoring
program implemented, if "NO" on item
#20 above?
Description:
Date:
22. Pertinent parties notified of
investigation conclusion?
23. ALARM PANEL CLEAR?
24. SYSTEM RETURNED TO
SERVICE?
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YES
NO
N/A
YES N/A
NO
2" pipehassignsof inside rusting