293
MD 610_2d 11/2019
Notes:
1. The tablets must be added in the correct sequence.
2. In the caseof high levelsof residual chlorine, perform the analysiswith a dechlorinated
water sample. To dechlorinate add one DECHLORtablet to the water sample (point 1).
Crush and mix to dissolve the tablet. Then add the COPPER/ZINCLRtablet (point 2) and
continue with the test procedure as described above.
3. When using the copper/zinc LRtablets, the Zincon indicator reacts with both the zinc
and the copper. Therefore, the specified measuring range may possiblyrefer to the total
concentration of both ions.
4. Concentrations above 1mg/l may lead to results within the measurement range. In this
case,it is recommended to carry out a dilution of sample prior to analysisas a plausibility
check.
5. The addition of an EDTAtablet during the second step of the analysisensuresthat any
copper presencedoes not interfere with the test.
6. Before analysis,strong alkaline or acidic samplesshould be adjusted to pH 9 (with
1 mol/l hydrochloric acid, 1 mol/l sodium hydroxide).
Reagent
Form of reagent/Quantity
Order-No.
COPPER/ ZINC LR
Tablet / 100
512620BT
EDTA
Tablet / 100
512390BT
DECHLOR
Tablet / 100
512350BT
Содержание Lovibond MD 610
Страница 14: ...8 MD 610_2d 11 2019...
Страница 15: ...9 MD 610_2d 11 2019 Part 1 Methods...
Страница 87: ...81 MD 610_2d 11 2019...
Страница 95: ...89 MD 610_2d 11 2019...
Страница 279: ...273 MD 610_2d 11 2019 Notes 1 SO3 Na2 SO3 Reagent Formof reagent Quantity Order No SULFITE LR Tablet 100 518020BT...
Страница 306: ...300 MD 610_2d 11 2019...
Страница 307: ...301 MD 610_2d 11 2019 Part 2 Instrument Manual...
Страница 310: ...304 MD 610_2d 11 2019...
Страница 362: ...356 MD 610_2d 11 2019...
Страница 363: ...357 MD 610_2d 11 2019 Part 3 Enclosure...