Final Report Report No.: 1 Program No.: WAT-CH-0001 Program ...

Report No.: 1
B-2- Stability testing
Samples for this program were obtained from a natural water source by East Azerbaijan water
and wastewater laboratory. A random selection of 3 samples was chosen 30 days after the
sample dispatch. Each of the selected test samples have been divided into two test portions
using techniques appropriate to the test material to minimize between-test-portion differences.
The results of the stability testing has been analysed by PQP, in order to determine whether the
samples are sufficiently stable. The selected samples were analysed by East Azerbaijan water
and wastewater laboratory for stability. The general average of the measurements obtained in
the homogeneity check is compared with the general average of the results obtained in the
stability check. The samples are considered to be adequately stable if:
The results of the stability testing are as follows:
Parameter
Total
hardness
(mgCaCO3/L)
Alkalinity
(mgCaCO3/L)
Potassium
(mgK/L)
Chloride
(mgCl/L)
Sulphate
(mgSO4/L)
Sample
SDPA
A’ B’ C’
?
485.0 487.5 487.5 487.5 487.5 485.0 15 Yes
335.0 335.0 337.5 335.0 337.5 335.0 10.04 Yes
7.25 7.20 7.20 7.25 7.25 7.25 0.77 Yes
99.4 99.4 99.4 97.6 99.4 97.6 7.21 Yes
262.1 263.1 265.2 263.3 261.5 259.9 24.40 Yes
Fluoride
(mgF/L)
Conductivity
(µS/cm@25°C
)
0.451 0.456 0.457 0.455 0.452 0.454 0.23 Yes
1420 1421 1422 1421 1423 1422 0.6 64.46 Yes
Considering the results of stability analysis, it can be concluded that the samples are stable for the program’s
parameters.
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