Hanna Instruments HI 83200-01 - Manual (Page 6)

10 11
Pay attention to push the cuvette completely down in the holder.
• In order to avoid reagent leaking and to obtain more accurate measure-
ments, close the cuvette first with the supplied HDPE plastic stopper
and then the black cap.
• Each time the cuvette is used, the cap must be tightened to the same degree.
• Whenever the cuvette is placed into the measurement cell, it must be dry
outside, and free of fingerprints, oil or dirt. Wipe it thoroughly with
HI 731318 or a lint-free cloth prior to insertion.
• Shaking the cuvette can generate bubbles in the sample, causing higher
readings. To obtain accurate measurements, remove such bubbles by
swirling or by gently tapping the cuvette.
• Do not let the reacted sample stand too long after reagent is added, or
accuracy will be lost.
• It is possible to take multiple readings in a row, but it is recommended to
take a new zero reading for each sample and to use the same cuvette for
zeroing and measurement when possible (for most precise results follow the
measurement procedures carefully).
• Discard the sample immediately after the reading is taken, or the glass might become permanently
stained.
• All the reaction times reported in this manual are at 20°C (68°F). As a general rule of thumb, they
should be doubled at 10°C (50°F) and halved at 30°C (86°F).
REAGENT BLANK CORRECTION
• Some methods require a “reagent blank correction”. The blank and the sample are prepared exactly
in the same way, only the blank is deionized water instead of sample.
A blank cuvette may be used more than once: stability and storing conditions are described for each
method in the related chapter.
INTERFERENCES
• In the method measurement section the most common interferences that may be present in an average
wastewater matrix have been reported. It may be that for a particular treatment process other
compounds do interfere with the method of analysis.
METHOD REFERENCE TABLE
HI83200 - LABORATORIES
Method Method Page
description
1 Aluminum 21
2 Alkalinity 23
3 Ammonia MR 25
4 Ammonia LR 27
5 Bromine 29
6 Calcium 31
7 Free Chlorine 33
8 Total Chlorine 36
9 Chlorine Dioxide 39
10 Chromium VI HR 42
11 Chromium VI LR 44
12 Color of Water 46
13 Copper HR 48
14 Copper LR 50
15 Cyanide 52
16 Cyanuric Acid 55
17 Fluoride 57
18 Calcium Hardness 59
19 Magnesium Hardness 62
20 Hydrazine 65
21 Iodine 67
22 Iron HR 69
23 Iron LR 71
Method Method Page
description
24 Magnesium 74
25 Manganese HR 76
26 Manganese LR 78
27 Molybdenum 81
28 Nickel HR 84
29 Nickel LR 86
30 Nitrate 89
31 Nitrite HR 91
32 Nitrite LR 93
33 Dissolved Oxygen 95
34 Ozone 97
35 pH 100
36 Phosphate HR 102
37 Phosphate LR 104
38 Phosphorus 106
39 Potassium HR 108
40 Potassium MR 111
41 Potassium LR 113
42 Silica 115
43 Silver 118
44 Sulfate 121
45 Zinc 123
HEALTH & SAFETY
The chemicals contained in the reagent kits may be hazardous if improperly handled. Read the
Material Safety Data Sheet (MSDS) before performing tests.
Safety equipment: Wear suitable eye protection and clothing when required, and follow instructions carefully.
Reagent spills: If a reagent spill occurs, wipe up immediately and rinse with plenty of water.
If reagent contacts skin, rinse the affected area thoroughly with water. Avoid breathing released vapors.