Lovibond 00386448 - MD1x0/200 - COD HR TT, COD LMR TT, COD LR TT, COD MR TT Manual do usuário

  • Olá! Sou o assistente de chat. Eu revisei o manual de métodos para MD 100, MD 110 e MD 200 e estou pronto para responder a quaisquer perguntas que você possa ter sobre os métodos de teste de capacidade ácida KS4.3 e demanda química de oxigênio (DQO) descritos neste manual. Também posso auxiliar você nas instruções de operação do dispositivo e na interpretação dos resultados.
  • Quais são os métodos de teste descritos neste manual?
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    Para quais dispositivos posso utilizar estes métodos?
Lovibond® Water Testing
Tintometer® Group
Manual of Methods
MD 100 • MD 110 • MD 200
COD
EN
Manual of Methods
Page 4
DE
Methodenhandbuch
Seite 24
ES
Manual de Métodos
Página 46
FR
Méthodes Manuel
Page 68
IT
Manuale dei Metodi
Pagina 90
PT
Métodos Manual
Página 118
NL
Handboek Methoden
Zijde 138
ZH
方法手册
Page 160
NL Handboek van Methoden 01/20EN Handbook of Methods 01/20
KS4.3 T
0.1 - 4 mmol/l KS4.3
Acid / Indicator
20
S:4.3
Instrument specific information
The test can be performed on the following devices. In addition, the required cuvette
and the absorption range of the photometer are indicated.
Instrument Type Cuvette λMeasuring Range
MD 200, MD 600, MD 610,
MD 640, MultiDirect, PM 620,
PM 630
ø 24 mm 610 nm 0.1 - 4 mmol/l KS4.3
SpectroDirect, XD 7000,
XD 7500
ø 24 mm 615 nm 0.1 - 4 mmol/l KS4.3
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
Alka-M-Photometer Tablet / 100 513210BT
Alka-M-Photometer Tablet / 250 513211BT
Application List
Waste Water Treatment
Drinking Water Treatment
Raw Water Treatment
Notes
1. The terms Alkalinity-m, m-Value, total alkalinity and Acid demand to KS4.3 are iden-
tical.
2. For accurate results, exactly 10 ml of water sample must be used for the test.
Display in the MD
100 / MD 110 /
MD 200
Bar code for the
detection of the
methods
Method name
Measuring range
Chemical Method
Method number
Language codes
ISO 639-1 Revision status
KS4.3 T / 20
How to use
ENMethod Reference Book4
EN
Implementation of the provision Acid capacity KS4.3 with Tablet
Select the method on the device
For this method, no ZERO measurements are to be carried out with the following de-
vices: XD 7000, XD 7500
10 ml
Fill 24 mm vial with 10 ml
sample.
Close vial(s).
Sample
Place sample vial in the
sample chamber. • Pay
attention to the positioning.
Dissolve tablet(s) by inver-
ting.
Sample
Place sample vial in the
sample chamber. • Pay
attention to the positioning.
Test
Press the TEST (XD:
START) button.
The result in Acid Capacity KS4.3 appears on the display.
Performing test
procedure
KS4.3 T / 20
NL Handboek van Methoden 01/20EN Handbook of Methods 01/20
How to use
ENMethod Reference Book 5
EN
COD LR TT / M130
ENMethod Reference Book1.06
EN
COD LR TT M130
3 - 150 mg/L CODb) Lr
Dichromate / H2SO4
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
COD LR/25 25 Pieces 2420720
COD LR/25, mercury free 25 Pieces 2420710
COD LR/150 150 Pieces 2420725
The following accessories are required.
Accessories Packaging Unit Part Number
Thermoreactor RD 125 1 Pieces 2418940
Remarks
1. The blank is stable when stored in the dark.
2. Blanks and test vials must be from the same batch.
3. Do not place hot vials in the sample chamber. The most stable measured values
can be determined if the vials are left standing overnight.
COD LR TT / M130
ENMethod Reference Book1.0 7
EN
Removal of high Chloride concentration in COD samples
Chloride content may interfere during COD determination, if the tolerance level of
the used test will be exceeded. To overcome that problem the following sample
pretreatment can be used:
Equipment:
2 Erlenmeyer flasks 300 mL with NS 29/32 connection
2 HCl absorber according to DIN 38409
2 glass stoppers NS 29/32
Pipettes for volumes of 20 and 25ml
Magnetic stirrer and magnetic stirring rods
Thermometer to measure 0 - 100 °C
Ice bath
Reagents:
12 to 14 g of sodalime
50 mL H2SO4 (95 - 97%, 1.84 g/ml, CSB free)
Hydrochloric acid 10 % to clean absorber from residual lime
The work must be carried out under a fume hood!
20 mL
25 ºC
15 ºC
20 mL
Put 20 mL homogenised
sample in the erlenmeyer
flask.
Add the magnetic stirring
rod, and cool in the ice
bath.
Put 20 mL deionized water
in the second erlenmeyer
flask.
25 mL
50 ºC
40 ºC
Add slowly 25 mL
concentrated Sulfuric
acid each under cooling
and stirring.
Sample will be hot! Temperature should not
exceed 40 to 50 °C.
COD LR TT / M130
ENMethod Reference Book1.08
EN
25 ºC
15 ºC
After the complete addition
of the sulfuric acid, cool to
room temperature in the ice
bath.
Add 6 - 7 g soda lime
powder into the absorption
tubes.
Close the absorption tubes
with a plug and fit onto the
Erlenmeyer flasks.
9
4
5
6
7
8
10
11 12
1
2
3
120 min
Stir at about 250 rpm for
120 minutes at room
temperature (a turbidity
may be formed).
This sample is used for the analysis of COD. Due to this pretreatment procedure the
original sample has been diluted by a factor of 2.05.
CSB sample= CSB display x 2.05
Determination of COD LR with Vario Vial Test
Select the method on the device.
Blank
Blank
2 mL
Sample
2 mL
Prepare two reaction vials.
Mark one as a blank.
Put 2 mL deionised water
in the blank.
Put 2 mL sample in the
sample vial.
COD LR TT / M130
ENMethod Reference Book1.0 9
EN
Close vial(s). Carefully invert several
times to mix the contents.
Note: Will get hot!
Seal the vials in the pre-
heated thermoreactor for
120 minutes at 150 °C .
60 °C
Remove the vial from the
thermoreactor. (Note: vial
will be hot!)
Allow vial(s) to cool to 60
°C.
Invert several times to mix
the contents.
25 ºC
15 ºC
Zero
Allow the vial to cool to
room temperature and then
measure.
Place blank in the sample
chamber. • Pay attention to
the positioning.
Press the ZERO button.
COD LR TT / M130
ENMethod Reference Book1.010
EN
Test
Remove vial from the
sample chamber.
Place sample vial in the
sample chamber. • Pay
attention to the positioning.
Press the TEST (XD:
START)button.
The result in mg/L COD appears on the display.
COD LR TT / M130
ENMethod Reference Book1.0 11
EN
Chemical Method
Dichromate / H2SO4
Appendix
Interferences
Persistant Interferences
In exceptional cases, contents, for which the oxidation capacity of the reagent is not
sufficient, can lead to lower results.
Removeable Interferences
Suspended solids in the vial can lead to incorrect measurements and so to avoid
this, it is important to place the vials carefully in the sample chamber as the method
necessitates a build-up of precipitate at the bottom of the vial.
The outer walls of the vial must be clean and dry before the analysis is carried out.
Fingerprints or water droplets on the vial lead to incorrect measurements.
In the standard version, chloride interferes from a concentration of 1000 mg/L. In the
mercury-free version, the disturbance depends on the chloride concentration and the
COD. Concentrations from 100 mg/L chloride can lead to significant disturbances
here.
Method Validation
Limit of Detection 3.2 mg/L
Limit of Quantification 9.7 mg/L
End of Measuring Range 150 mg/L
Sensitivity -272 mg/L / Abs
Confidence Intervall 3.74 mg/L
Standard Deviation 1.55 mg/L
Variation Coefficient 2.02 %
Conformity
ISO 15705:2002
According to
ISO 15705:2002
DIN 38409 part 41
b) Reactor is necessary for COD (150 °C), TOC (120 °C) and total -chromium, - phosphate, -nitrogen, (100 °C)
COD MR TT / M131
ENMethod Reference Book1.012
EN
COD MR TT M131
20 - 1500 mg/L CODb) Mr
Dichromate / H2SO4
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
COD MR/25 25 Pieces 2420721
COD MR/25, mercury free 25 Pieces 2420711
COD MR/150 150 Pieces 2420726
COD MR/150, mercury free 150 Pieces 2420716
The following accessories are required.
Accessories Packaging Unit Part Number
Thermoreactor RD 125 1 Pieces 2418940
Remarks
1. The blank is stable when stored in the dark. Blanks and test vials must be from the
same batch.
2. Do not place hot vials in the sample chamber. The most stable measured values
can be determined if the vials are left standing overnight.
3. For samples under 100 mg/L COD it is recommended to to use the tube test COD
LR if a higher degree of accuracy is required.
COD MR TT / M131
ENMethod Reference Book1.0 13
EN
Determination of COD MR with Vario Vial Test
Select the method on the device.
Blank
Blank
2 mL
Sample
2 mL
Prepare two reaction
vials. Mark one as a blank.
Put 2 mL deionised water
in the blank.
Put 2 mL sample in the
sample vial.
Close vial(s). Carefully invert several
times to mix the contents.
Note: Will get hot!
Seal the vials in the pre-
heated thermoreactor for
120 minutes at 150 °C .
60 °C
Remove the vial from the
thermoreactor. (Note: vial
will be hot!)
Allow vial(s) to cool to
60 °C.
Invert several times to mix
the contents.
COD MR TT / M131
ENMethod Reference Book1.014
EN
25 ºC
15 ºC
Zero
Allow the vial to cool to
room temperature and then
measure.
Place blank in the sample
chamber. • Pay attention to
the positioning.
Press the ZERO button.
Test
Remove vial from the
sample chamber.
Place sample vial in the
sample chamber. • Pay
attention to the positioning.
Press the TEST (XD:
START)button.
The result in mg/L COD appears on the display.
COD MR TT / M131
ENMethod Reference Book1.0 15
EN
Chemical Method
Dichromate / H2SO4
Appendix
Interferences
Persistant Interferences
In exceptional cases, contents, for which the oxidation capacity of the reagent is not
sufficient, can lead to lower results.
Removeable Interferences
Suspended solids in the vial can lead to incorrect measurements and so to avoid
this, it is important to place the vials carefully in the sample chamber as the method
necessitates a build-up of precipitate at the bottom of the vial.
The outer walls of the vial must be clean and dry before the analysis is carried out.
Fingerprints or water droplets on the vial lead to incorrect measurements.
In the standard version, chloride interferes from a concentration of 1000 mg/L. In the
mercury-free version, the disturbance depends on the chloride concentration and the
COD. Concentrations from 100 mg/L chloride can lead to significant disturbances
here. To remove high chloride concentrations in COD samples, see method M130
COD LR TT.
Method Validation
Limit of Detection 8.66 mg/L
Limit of Quantification 25.98 mg/L
End of Measuring Range 1500 mg/L
Sensitivity 2,141 mg/L / Abs
Confidence Intervall 18.82 mg/L
Standard Deviation 7.78 mg/L
Variation Coefficient 1.04 %
Conformity
ISO 15705:2002
According to
ISO 15705:2002
DIN 38409 part 43
b) Reactor is necessary for COD (150 °C), TOC (120 °C) and total -chromium, - phosphate, -nitrogen, (100 °C)
COD HR TT / M132
ENMethod Reference Book1.016
EN
COD HR TT M132
200 - 15000 mg/L CODb) Hr
Dichromate / H2SO4
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
COD HR/25 25 Pieces 2420722
COD HR/25, mercury free 25 Pieces 2420712
COD HR/150 150 Pieces 2420727
The following accessories are required.
Accessories Packaging Unit Part Number
Thermoreactor RD 125 1 Pieces 2418940
Remarks
1. The blank is stable when stored in the dark. Blanks and test vials must be from the
same batch.
2. Do not place hot vials in the sample chamber. The most stable measured values
can be determined if the vials are left standing overnight.
3. For samples under 1 g/L COD it is recommended to repeat the test with the test kit
for COD MR or for samples under 0.1 g/L COD to use the tube test COD LR if a
higher degree of accuracy is required.
COD HR TT / M132
ENMethod Reference Book1.0 17
EN
Determination of CSB HR with Vario Vial Test
Select the method on the device.
Blank
Blank
0.2 mL
Sample
0.2 mL
Prepare two reaction
vials. Mark one as a blank.
Put 0.2 mL deionised
water in the blank.
Put 0.2 mL sample in the
sample vial.
Close vial(s). Carefully invert several
times to mix the contents.
Note: Will get hot!
Seal the vials in the pre-
heated thermoreactor for
120 minutes at 150 °C .
60 °C
Remove the vial from the
thermoreactor. (Note: vial
will be hot!)
Allow vial(s) to cool to
60 °C.
Invert several times to mix
the contents.
COD HR TT / M132
ENMethod Reference Book1.018
EN
25 ºC
15 ºC
Zero
Allow the vial to cool to
room temperature and then
measure.
Place blank in the sample
chamber. • Pay attention to
the positioning.
Press the ZERO button.
Test
Remove vial from the
sample chamber.
Place sample vial in the
sample chamber. • Pay
attention to the positioning.
Press the TEST (XD:
START)button.
The result in mg/L COD appears on the display.
COD HR TT / M132
ENMethod Reference Book1.0 19
EN
Chemical Method
Dichromate / H2SO4
Appendix
Interferences
Persistant Interferences
In exceptional cases, contents, for which the oxidation capacity of the reagent is not
sufficient, can lead to lower results.
Removeable Interferences
Suspended solids in the vial can lead to incorrect measurements and so to avoid
this, it is important to place the vials carefully in the sample chamber as the method
necessitates a build-up of precipitate at the bottom of the vial.
The outer walls of the vial must be clean and dry before the analysis is carried out.
Fingerprints or water droplets on the vial lead to incorrect measurements.
In the standard version, chloride interferes from a concentration of 10000 mg/L. In
the mercury-free version, the disturbance depends on the chloride concentration and
the COD. Concentrations from 100 mg/L chloride can lead to significant disturbances
here. To remove high chloride concentrations in COD samples, see method M130
COD LR TT.
Method Validation
Limit of Detection 112.81 mg/L
Limit of Quantification 338.43 mg/L
End of Measuring Range 15 g/L
Sensitivity 21,164 mg/L / Abs
Confidence Intervall 70.48 mg/L
Standard Deviation 27.84 mg/L
Variation Coefficient 0.37 %
Conformity
ISO 15705:2002
According to
ISO 15705:2002
b) Reactor is necessary for COD (150 °C), TOC (120 °C) and total -chromium, - phosphate, -nitrogen, (100 °C)
COD LMR TT / M133
ENMethod Reference Book1.020
EN
COD LMR TT M133
15 - 300 mg/L CODb) LMr
Dichromate / H2SO4
Material
Required material (partly optional):
Reagents Packaging Unit Part Number
COD LMR/25 25 Pieces 2423120
The following accessories are required.
Accessories Packaging Unit Part Number
Thermoreactor RD 125 1 Pieces 2418940
Remarks
1. The blank is stable when stored in the dark. Blanks and test vials must be from the
same batch.
2. Do not place hot vials in the sample chamber. The most stable measured values
can be determined if the vials are left standing overnight.
COD LMR TT / M133
ENMethod Reference Book1.0 21
EN
Determination of COD LMR with Vial Test
Select the method on the device.
Blank
Blank
2 mL
Sample
2 mL
Prepare two reaction
vials. Mark one as a blank.
Put 2 mL deionised water
in the blank.
Put 2 mL sample in the
sample vial.
Close vial(s). Carefully invert several
times to mix the contents.
Note: Will get hot!
Seal the vials in the pre-
heated thermoreactor for
120 minutes at 150 °C .
60 °C
Remove the vial from the
thermoreactor. (Note: vial
will be hot!)
Allow vial(s) to cool to
60 °C.
Invert several times to mix
the contents.
1/183