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Methods
GB
Alkalinity-m with Tablet
5 – 200 mg/l
Fill a clean vial (24 mm Ø) with 10 ml of the water sample and
perform zero calibration (see "Operation").
Add one ALKA-M-PHOTOMETER tablet straight from the foil to the
0.0.0
10 ml water sample and crush the tablet using a clean stirring rod.
Close the vial tightly with the cap and swirl gently several times until
the tablet is dissolved.
Place the vial in the sample chamber making sure that the
are aligned.
Zero
Press the [ZERO/TEST] key.
Test
The method symbol flashes for approx. 3 seconds.
tA
RESULT
The result is shown in the display in mg/l CaCO
Tolerance: ± 5% (full scale)
Notes:
1.
The terms total Alkalinity, Alkalinity-m, m-Value and Alkalinity to pH 4.3 are identical.
2.
For accurate results exactly 10 ml of water sample must be taken for the test.
3.
Conversion table:
Acid demand to pH 4.3
1 mg/l CaCO
3
*Carbonate hardness (reference = Hydrogencarbonate-anions)
Example:
10 mg/l CaCO
= 10 mg/l · 0.056 = 0.56 °dH
3
10 mg/l CaCO
= 10 mg/l · 0.02 = 0.2 mmol/l
3
32
All manuals and user guides at all-guides.com
DIN 38 409 (K
)
S4.3
0.02
.
3
German
English
°dH*
°eH*
0.056
0.07
CheckitDirect_Cl-pH-CyA-TA_2 09/2010
marks
French
°fH*
0.1
Capítulos
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