Lovibond Handbook of Methods MD100/110/200 Manuale utente

Lovibond® Water Testing

Tintometer® Group

Manual of Methods

MD 100 • MD 110 • MD 200

EN

Manual of Methods

Page 4

DE

Methodenhandbuch

Seite 94

ES

Manual de Métodos

Página 186

FR

Méthodes Manuel

Page 278

IT

Manuale dei Metodi

Pagina 368

PT

Métodos Manual

Página 460

NL

Handboek Methoden

Zijde 550

ZH

方法手册

Page 640

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Handbook of Methods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Handbook of Methods 5

EN

Aluminium PP / M50

ENMethod Reference Book1.06

EN

Aluminium PP M50

0.01 - 0.25 mg/L Al AL

Eriochrom Cyanine R

Material

Required material (partly optional):

Reagents Packaging Unit Part Number

VARIO Aluminium Reagent, Set F20 1 pc. 535000

Preparation

1. To get accurate results the sample temperature must be between 20 °C and 25 °C.

2. To avoid errors caused by contamination, rinse the vial and the accessories with

Hydrochloric acid (approx. 20%) before the analysis. Then rinse them with deionised

water.

Aluminium PP / M50

ENMethod Reference Book1.0 7

EN

Determination of Aluminium with Vario Powder Pack

Select the method on the device.

Blank

20 mL

Prepare two clean 24 mm

vials. Mark one as a blank.

Put 20 mL sample in

100 mL measuring beaker

Add Vario ALUMINIUM ECR

F20 powder pack.

9

4

5

6

7

8

10

11 12

1

2

3

30 sec

Dissolve the powder by

mixing.

Press the ENTER button. Wait for 30 second(s)

reaction time.

Blank

1

Add Vario HEXAMINE

F20 powder pack.

Dissolve the powder by

mixing.

Place 1 drops Vario

ALUMINIUM ECR Masking

Reagent in the blank.

Aluminium PP / M50

ENMethod Reference Book1.08

EN

24 mm

10 mL

Place 10 mL pre-treated

sample in each vial.

Close vial(s). Press the ENTER button.

9

4

5

6

7

8

10

11 12

1

2

3

5 min

Blank

Zero

Wait for 5 minute(s)

reaction time.

Place blank in the sample

chamber. Pay attention to

the positioning.

Press the ZERO button.

Sample

Test

Remove the 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 Aluminium appears on the display.

Aluminium PP / M50

ENMethod Reference Book1.0 9

EN

Analyses

The following table identifies the output values can be converted into other citation

forms.

Unit Cite form Scale Factor

mg/l Al 1

mg/l Al2O31.8894

Chemical Method

Eriochrom Cyanine R

Appendix

Interferences

Removeable Interferences

• A low test result may be given in the presence of Fluorides and Polyphosphates. The

effect of this is generally insignificant unless the water has fluoride added artificially.

In this case, the following table should be used to determine the actual concentration

of aluminium.

Fluoride Displayed value: Aluminium [mg/L]

[mg/L

F]

0.05 0.10 0.15 0.20 0.25 0.30

0.2 0.05 0.11 0.16 0.21 0.27 0.32

0.4 0.06 0.11 0.17 0.23 0.28 0.34

0.6 0.06 0.12 0.18 0.24 0.30 0.37

0.8 0.06 0.13 0.20 0.26 0.32 0.40

1.0 0.07 0.13 0.21 0.28 0.36 0.45

1.5 0.09 0.20 0.29 0.37 0.48 ---

Bibliography

Richter, F. Fresenius, Zeitschrift f. anal. Chemie (1943) 126: 426

According to

APHA Method 3500-Al B

Bromine T / M80

ENMethod Reference Book1.010

EN

Bromine T M80

0.05 - 13 mg/L Br2Br

DPD

Material

Required material (partly optional):

Reagents Packaging Unit Part Number

DPD No.1 Tablet / 100 511050BT

DPD No. 1 Tablet / 250 511051BT

DPD No. 1 Tablet / 500 511052BT

DPD No. 1 High Calcium e) Tablet / 100 515740BT

DPD No. 1 High Calcium e) Tablet / 250 515741BT

DPD No. 1 High Calcium e) Tablet / 500 515742BT

Preparation

1. Cleaning of vials:

As many household cleaners (e.g. dishwasher detergent) contain reducing

substances, the subsequent determination of oxidising agents (e.g. ozone and

chlorine) may show lower results. To avoid measurement errors, the glassware

used should be free of chlorine consumption. To achieve this, all glassware should

be placed in a sodium hypochlorite solution (0.1 g/L) for one hour and then rinsed

thoroughly with deionised water.

2. When preparing the sample, Bromine outgassing, e.g. through the pipette or shaking,

must be avoided. The analysis must take place immediately after taking the sample.

3. Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7

before the analysis (use 0.5 mol/l Sulphuric acid or 1 mol/l Sodium hydroxide).

Bromine T / M80

ENMethod Reference Book1.0 11

EN

Determination of Bromine with Tablet

Select the method on the device.

10 mL

Sample

Fill 24 mm vial with 10 mL

sample.

Close vial(s). Place sample vial in the

sample chamber. Pay

attention to the positioning.

Zero

Press the ZERO button. Remove the vial from the

sample chamber.

Empty vial except for a few

drops.

24 mm

Add DPD No. 1 tablet . Crush tablet(s) by rotating

slightly.

Fill up vial with sample to

the 10 mL mark.

Bromine T / M80

ENMethod Reference Book1.012

EN

Sample

Close vial(s). Dissolve tablet(s) by

inverting.

Place sample vial in the

sample chamber. Pay

attention to the positioning.

Test

Press the TEST (XD:

START)button.

The result in mg/L Bromine appears on the display.

Bromine T / M80

ENMethod Reference Book1.0 13

EN

Chemical Method

DPD

Appendix

Interferences

Persistant Interferences

1. All oxidising agents in the samples react like bromine, which leads to higher results.

2. Concentrations above 22 mg/L Bromine can lead to results within the measuring

range of up to 0 mg/L. In this case, the water sample must be diluted. 10 ml of the

diluted sample should be mixed with the reagent and the measurement taken again

(plausibility test).

Derived from

US EPA 330.5 (1983)

APHA Method 4500 Cl-G

e) alternative reagent, used instead of DPD No.1/No.3 in case of turbidity in the water sample caused by high

concentration of calcium and/or high conductivity

Chlorine T / M100

ENMethod Reference Book1.014

EN

Chlorine T M100

0.01 - 6.0 mg/L Cl2 a) CL6

DPD

Material

Required material (partly optional):

Reagents Packaging Unit Part Number

DPD No.1 Tablet / 100 511050BT

DPD No. 1 Tablet / 250 511051BT

DPD No. 1 Tablet / 500 511052BT

DPD No. 3 Tablet / 100 511080BT

DPD No. 3 Tablet / 250 511081BT

DPD No. 3 Tablet / 500 511082BT

DPD No. 1 High Calcium e) Tablet / 100 515740BT

DPD No. 1 High Calcium e) Tablet / 250 515741BT

DPD No. 1 High Calcium e) Tablet / 500 515742BT

DPD No. 3 High Calcium e) Tablet / 100 515730BT

DPD No. 3 High Calcium e) Tablet / 250 515731BT

DPD No. 3 High Calcium e) Tablet / 500 515732BT

DPD No. 4 Tablet / 100 511220BT

DPD No. 4 Tablet / 250 511221BT

DPD No. 4 Tablet / 500 511222BT

DPD No. 3 Evo Tablet / 100 511420BT

DPD No. 3 Evo Tablet / 250 511421BT

DPD No. 3 Evo Tablet / 500 511422BT

DPD No. 4 Evo Tablet / 100 511970BT

DPD No. 4 Evo Tablet / 250 511971BT

DPD No. 4 Evo Tablet / 500 511972BT

Available Standards

Title Packaging Unit Part Number

ValidCheck Chlorine 1,5 mg/l 1 pc. 48105510

Chlorine T / M100

ENMethod Reference Book1.0 15

EN

Sampling

1. When preparing the sample, chlorine outgassing, e.g. through the pipette or shaking,

must be avoided.

2. The analysis must take place immediately after taking the sample.

Preparation

1. Cleaning of vials:

As many household cleaners (e.g. dishwasher detergent) contain reducing

substances, this can lead to lower results with the determination of chlorine. To avoid

measurement errors, the glassware used should be free of chlorine consumption. To

achieve this, all glassware should be placed in a sodium hypochlorite solution (0.1 g/

L) for one hour and then rinsed thoroughly with deionised water.

2. For individual testing of free and total chlorine, the use of different sets of glassware

is recommended (EN ISO 7393-2, 5.3)

3. The DPD colour development is carried out at a pH value of 6.2 to 6.5. The reagents

therefore contain a buffer for the pH adjustment. Strong alkaline or acidic water

samples must therefore be adjusted between pH 6 and pH 7 before the analysis (use

0.5 mol/Lsulphuric acid or 1 mol/Lsodium hydroxide).

Notes

1. Evotablets can be used as an alternative to the corresponding standard tablet (e.g.

DPD No.3 Evoinstead of DPD No.3).

Chlorine T / M100

ENMethod Reference Book1.016

EN

Determination of free chlorine with tablet

Select the method on the device.

10 mL

Sample

Fill 24 mm vial with 10 mL

sample.

Close vial(s). Place sample vial in the

sample chamber. Pay

attention to the positioning.

Zero

Press the ZERO button. Remove the vial from the

sample chamber.

Empty vial except for a few

drops.

24 mm

Add DPD No. 1 tablet . Crush tablet(s) by rotating

slightly.

Fill up vial with sample to the

10 mL mark.

Chlorine T / M100

ENMethod Reference Book1.0 17

EN

Sample

Close vial(s). Dissolve tablet(s) by

inverting.

Place sample vial in the

sample chamber. Pay

attention to the positioning.

Test

Press the TEST (XD:

START)button.

The result in mg/L free chlorine appears on the display.

Determination of total Chlorine with tablet

Select the method on the device.

10 mL

Sample

Fill 24 mm vial with 10 mL

sample.

Close vial(s). Place sample vial in the

sample chamber. Pay

attention to the positioning.

Chlorine T / M100

ENMethod Reference Book1.018

EN

Zero

Press the ZERO button. Remove the vial from the

sample chamber.

Empty vial except for a few

drops.

Add DPD No. 1 tablet . Add DPD No. 3 tablet .As an alternative to DPD

No. 1 and No. 3 tablets, a

DPD No. 4 tablet can be

added.

24 mm

Crush tablet(s) by rotating

slightly.

Fill up vial with sample to

the 10 mL mark.

Close vial(s).

Chlorine T / M100

ENMethod Reference Book1.0 19

EN

Sample

Test

Dissolve tablet(s) by

inverting.

Place sample vial in the

sample chamber. Pay

attention to the positioning.

Press the TEST (XD:

START)button.

9

4

5

6

7

8

10

11 12

1

2

3

2 min

Wait for 2 minute(s)

reaction time.

Once the reaction period is finished, the measurement takes place automatically.

The result in mg/L total Chlorine appears on the display.

Chlorine T / M100

ENMethod Reference Book1.020

EN

Chemical Method

DPD

Appendix

Interferences

Persistant Interferences

• All oxidising agents in the samples react like chlorine, which leads to higher results.

Removeable Interferences

• Interference from copper and iron (III) are eliminated by the addition of EDTA.

• The use of reagent tablets in samples with high calcium content* and/or

high conductivity* can lead to turbidity of the sample and therefore incorrect

measurements. In this case, the alternative reagent tablet DPD No.1 High Calcium

and reagent tablet DPD No.3 High Calcium should be used.

*it is not possible to give exact values, because the development of turbidity depends

on the composition and nature of the sample.

• Concentrations above 10 mg/L chlorine, in the event of using fluid reagents, can

lead to results within the measuring range of up to 0 mg/L. In the event of a high

concentration of chlorine, the sample must be diluted with chlorine-free water. 10

mLof the diluted sample should be mixed with the reagent and the measurement

taken again (plausibility test).

Interference from / [mg/L]

CrO4 2- 0.01

MnO20.01

Method Validation

Limit of Detection 0.02 mg/L

Limit of Quantification 0.06 mg/L

End of Measuring Range 6 mg/L

Sensitivity 2.05 mg/L / Abs

Confidence Intervall 0.04 mg/L

Standard Deviation 0.019 mg/L

Variation Coefficient 0.87 %

Conformity

EN ISO 7393-2

Chlorine T / M100

ENMethod Reference Book1.0 21

EN

a) determination of free, combined and total | e) alternative reagent, used instead of DPD No.1/No.3 in case of turbidity

in the water sample caused by high concentration of calcium and/or high conductivity

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