19
MD 610_2d 11/2019
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
DIN 38 409 (K
S4.3
)
German
°dH*
English
°eH*
French
°fH*
1 mg/l CaCO
3
0.02
0.056
0.07
0.1
*Carbonate hardness(reference = Hydrogencarbonate-anions)
Example:
10 mg/l CaCO
3
= 10 mg/l x 0.056 = 0.56 °dH
10 mg/l CaCO
3
= 10 mg/l x 0.02 = 0.2 mmol/l
4.
CaCO
3
°dH
°eH
°fH
°aH
Reagent
Form of reagent/Quantity
Order-No.
ALKA-M-PHOTOMETER
Tablet / 100
513210BT
Содержание Lovibond MD 610
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