Table Of Methods And Reagents; Starter Kit - Grundfos DIT-L Instrucciones De Instalación Y Funcionamiento

7.2 Table of methods and reagents

To ensure maximum accuracy of test results, always use the reagent systems supplied by the photometer manufacturer.
chlorine, free
free
chlorine, free
(high Ca)
free &
CL 6
chlorine, total combined
differentiated
not
chlorine, total
differentiated
chlorine in absence of
dioxide Cl
2
CLO2
chlorine in presence
dioxide of Cl
2
Chlorine
dioxide,
Chlorine
chlorite,
CL 6 dioxide
free chlorine,
analysis*
combined
chlorine
in absence of
ozone
Cl
2
O3
in presence
ozone
of Cl
2
pH,
PH phenol red
photometric
PU = packing unit
* The measurements are performed with method "CL 6" as the photometer doesn't supply a specific method for the determination of these
parameters. The values of tolerance apply to the individual measurement. For calculation with multiple values, be aware of error
propagation!
Turbidity can lead to errors
The use of the DPD No. 1 tablet (No 95727747) in samples with
high calcium ion contents* and/or high conductivity* can lead to
turbidity of the sample and therefore incorrect measurements. In
this case, the reagent tablet DPD No. 1 high calcium
(No 95727748) should be used as an alternative. Even if turbidity
does occur after the DPD No. 3 tablet (No 95727750) tablet has
been added, this can be prevented by using the DPD No. 1 high
calcium tablet. (No 95727748).
* It is not possible to give exact values, because the development
of turbidity depends on the nature of the sample.

7.2.1 Starter kit

Description of content
DPD No. 1
DPD No. 3
Glycine
Phenol red photometer
in mg/l:
0-1: ± 0.05
> 1-2: ± 0.1
0.01 - 6 mg/l Cl
2
> 2-3: ± 0.2
> 3-4: ± 0.3
> 4-6: ± 0.4
in mg/l:
0-1.9: ± 0.08
0.02 - 11 mg/l >1.9-3.8: ± 0.15
ClO >3.8-5.7: ± 0.34
2
>5.7-7.6: ± 0.48
>7.6-11: ± 0.67
in mg/l:
0-1: ± 0.05*
> 1-2: ± 0.1*
0.01 - 6 mg/l
> 2-3: ± 0.2*
> 3-4: ± 0.3*
> 4-6: ± 0.4*
as chlorine with
0.02 - 2 mg/l O
3
factor 0.677
6.5 - 8.4 pH ± 0.1
Analyses per
PU
100
100
100
100
DPD No. 1 tablets
DPD No. 1 high
calcium tablets
DPD No. 1 tablets
or
0.01 250
DPD No. 1 high
calcium tablets
DPD No. 3 tablets
DPD No. 4 tablets
DPD No. 1 tablets
DPD No. 1 tablets
0.01 250
Glycine tablets
DPD No. 1 tablets
250 DPD No. 3 tablets
Glycine tablets
0.01
DPD Acidifying tablets
100
DPD Neutralising
tablets
DPD No. 1 tablets
DPD No. 3 tablets
0.01 250 DPD No. 1 tablets
DPD No. 3 tablets
Glycine tablets
Phenol red photometer
0.01 250
tablets
95727747
7.3.2
95727748
95727747
95727748
7.3.3
95727750
95727751 7.3.4
95727747 7.4.2
95727747
7.4.3
95727752
95727747
95727750
95727752
7.5
98032751
98032752
95727747
7.6.2
95727750
95727747
95727750 7.6.3
95727752
95727753 7.7
9