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The DPD reagent buffers the pH value of the sample water in the range of 6.2 to 6.5, which is
essential for colour development. If the sample water is very alkaline or acidic, this must be
adjusted to a pH within the range of 6 to 7 by addition of 0.5 mol/l sulphuric acid or 1 mol/l
caustic soda, respectively, before the DPD reagent is added.
If the sample water contains high concentrationvalues of active oxygen, a measured value of 0
mg/l can be displayed. In that case, a dilution is recommended.
T2/204
T2/204
Содержание Primelab 2.0
Страница 12: ...11 Icons Bluetooth WiFi Display General Settings Sound Device Information Cloud Sampling Points PrimeLab2 0...
Страница 13: ...Favourites Calculator Main Menu Battery Search General Create New Account Edit Return Icons 12 PrimeLab2 0...
Страница 17: ...EMPTY due to technical reasons 16 PrimeLab2 0...
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Страница 41: ...40 EMPTY due to technical reasons PrimeLab2 0...
Страница 45: ...due to technical reasons EMPTY 44 PrimeLab2 0...
Страница 179: ...Cobalt levels above 0 5 mg l will interfere with this test and can influence the reading high reading T124 204 T124 204...
Страница 237: ...The precision of the test results depends upon the precision of the diluting procedure T182 204 T182 204...
Страница 252: ...NTU standards should be stored at 5 25 C T197 204 T197 204...
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Страница 283: ...70 due to technical reasons EMPTY PrimeLab2 0...
Страница 293: ...due to technical reasons EMPTY 80 PrimeLab2 0...