R (1) Do one of the steps that follow to check the sample(s) for
R microbiological contamination:
R (Ref. Fig. 302/TASK 12-32-28-991-005)
R (a) Use the FUELSTAT RESINAE TEST KIT CONIDIA BIOSCIENCE UK (CAGE
R CODE KE385) (and the manufacturers instructions) to make an
R analysis of each sample.
R (b) Send each sample to an approved laboratory for analysis.
R (2) Do a check of the results:
R NOTE : If you only do one test it can give an incorrect indication of____
R the condition of the fuel tanks. If a test shows
R contamination, (moderate or heavy) do the test again (in not
R more than 10 days) before you remove the aircraft from
R service. Use the same test kit/laboratory for the second test.
R (a) Negligible contamination:
R 1_ The contamination is negligible if the indication lines (on
R the test kit) show a negative result.
R 2_ Continue to monitor the fuel tanks at the scheduled inspection
R interval. No microbiological treatment is necessary.
R (b) Moderate contamination:
R 1_ The contamination is moderate if the indication lines (on the
R test kit) show a low positive result.
R 2_ Use the same method and do the sample test again in not more
R than 10 days after the first test.
R 3_ If the contamination has not changed from moderate:
R - do the BIOBOR biocidal shock treatment (moderate
R contamination procedure) to all fuel tanks (Ref. TASK 28-11-
R 00-600-008) or (Ref. TASK 28-11-00-600-008)
R or
R - do the KATHON biocidal shock treatment (moderate
R contamination procedure) to all fuel tanks (Ref. TASK 28-11-
R 00-600-008) or (Ref. TASK 28-11-00-600-008).
R (c) Heavy contamination
R 1_ The contamination is heavy if the indication lines (on the
R test kit) show a high positive result.
R 2_ Use the same method and do the sample test again in not more
R than 10 days after the first test.
R 3_ If the contamination has not changed from heavy:
R - do the BIOBOR biocidal shock treatment (heavy contamination
R procedure) to all fuel tanks (Ref. TASK 28-11-00-600-009) or
R (Ref. TASK 28-11-00-600-009)
R or
R - do the KATHON biocidal shock treatment (heavy contamination
R procedure) to all fuel tanks (Ref. TASK 28-11-00-600-009) or
R (Ref. TASK 28-11-00-600-009).
R NOTE : When you do the heavy contamination procedure, you will____
R need to enter all the fuel tanks to remove the
R contamination (Ref. TASK 28-11-00-600-003).
R Subtask 12-32-28-281-062
R D. Sample Analysis - HY-LITE Jet A1 Test Kit Procedure
R NOTE : The manufacturer recommends that you only use a fuel-resistant____
R transparent plastic container for the test. A glass container
R could have an unwanted effect on the test result.
R (1) Do one of the steps that follow to check the sample(s) for
R microbiological contamination:
R (Ref. Fig. 302/TASK 12-32-28-991-005)
R (a) Use the HY-LITE JET A1 FUEL TEST KIT MERCK KGAA, GERMANY (CAGE
R CODE D2186) (and the manufacturers instructions) to make an
R analysis of each sample.
R (b) Send each sample to an approved laboratory for analysis.
R (2) Do a check of the results:
R NOTE : If you only do one test it can give an incorrect indication of____
R the condition of the fuel tanks. If a test shows
R contamination, (moderate or heavy) do the test again (in not
R more than 10 days) before you remove the aircraft from
R service. Use the same test kit/laboratory for the second test.
R (a) Negligible contamination:
R 1_ The contamination is negligible if the sample contents has
R 1000 RLU/litre (Relative Light Units) or less.
R 2_ Continue to monitor the fuel tanks at the scheduled inspection
R interval. No microbiological treatment is necessary.
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