Lovibond Handbook of Methods MD100/110/200 Manuale utente

Lovibond® Water Testing

Tintometer® Group

Manual of Methods

MD 100 • MD 110 • MD 200

Silica

EN

Manual of Methods

Page 4

DE

Methodenhandbuch

Seite 24

ES

Manual de Métodos

Página 44

FR

Méthodes Manuel

Page 64

IT

Manuale dei Metodi

Pagina 84

PT

Métodos Manual

Página 104

NL

Handboek Methoden

Zijde 124

ZH

方法手册

Page 144

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

Silicate T / M350

ENMethod Reference Book1.06

EN

Silicate T M350

0.05 - 4 mg/L SiO2Si

Silicomolybdenum Blue

Material

Required material (partly optional):

Reagents Packaging Unit Part Number

Silica No. 1 Tablet / 100 513130BT

Silica No. 1 Tablet / 250 513131BT

Silica No. 2 Tablet / 100 513140BT

Silica No. 2 Tablet / 250 513141BT

Silica PR Tablet / 100 513150BT

Silica PR Tablet / 250 513151BT

Set Silica No. 1/No. 2 100 Pc.#100 each 517671BT

Set Silica No. 1/No. 2 250 Pc.#250 each 517672BT

Notes

1. The tablets must be added in the correct sequence.

Silicate T / M350

ENMethod Reference Book1.0 7

EN

Determination of Silicon Dioxide 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.

24 mm

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

slightly.

Close vial(s).

Silicate T / M350

ENMethod Reference Book1.08

EN

9

4

5

6

7

8

10

11 12

1

2

3

5 min

Dissolve tablet(s) by

inverting.

Press the ENTER button. Wait for 5 minute(s)

reaction time.

24 mm

Add SILICA PR tablet. Crush tablet(s) by rotating

slightly.

Add SILICA No. 2 tablet .

24 mm

Crush tablet(s) by rotating

slightly.

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

inverting.

Silicate T / M350

ENMethod Reference Book1.0 9

EN

Sample

Test

9

4

5

6

7

8

10

11 12

1

2

3

2 min

Place sample vial in the

sample chamber. Pay

attention to the positioning.

Press the TEST (XD:

START)button.

Wait for 2 minute(s)

reaction time.

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

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

Silicate T / M350

ENMethod Reference Book1.010

EN

Analyses

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

Unit Cite form Scale Factor

mg/l SiO21

mg/l Si 0.47

Chemical Method

Silicomolybdenum Blue

Appendix

Interferences

Removeable Interferences

• Phosphate does not interfere under the reaction conditions.

Derived from

Standard Method 4500-SiO2 C

# including stirring rod, 10 cm

Silicate LR PP / M351

ENMethod Reference Book1.012

EN

Silicate LR PP M351

0.1 - 1.6 mg/L SiO2SiLr

Heteropolyblue

Material

Required material (partly optional):

Reagents Packaging Unit Part Number

VARIO Silica LR, Set F10 1 Set 535690

Notes

1. The given reaction time of 4 minutes refers to a sample temperature of 20 °C. At a

sample temperature of 30 °C, a reaction time is 4 minutes and at 10 °C, a reaction

time of 8 minutes.

Silicate LR PP / M351

ENMethod Reference Book1.0 13

EN

Determination of Silicon dioxide LR with Vario Powder Packs and

liquid reagent

Select the method on the device.

Blank

24 mm

10 mL

SampleBlank

15

Prepare two clean 24 mm

vials. Mark one as a blank.

Place 10 mL sample in

each vial.

Add 15 drops Vario

Molybdate 3 Reagenz-

solution to each vial.

Close vial(s). Invert several times to mix

the contents.

Press the ENTER button.

9

4

5

6

7

8

10

11 12

1

2

3

4 min

SampleBlank

Wait for 4 minute(s)

reaction time.

Add a Vario Silica Citric

Acid F10 powder pack in

each vial.

Close vial(s).

Silicate LR PP / M351

ENMethod Reference Book1.014

EN

9

4

5

6

7

8

10

11 12

1

2

3

1 min

Swirl around to dissolve the

powder.

Press the ENTER button. Wait for 1 minute(s)

reaction time.

Blank

Sample

Place blank in the sample

chamber. Pay attention to

the positioning.

Add a Vario Silica Amino

Acid F10 powder pack to

the sample vial.

Close vial(s).

Zero

9

4

5

6

7

8

10

11 12

1

2

3

2 min

Swirl around to dissolve the

powder.

Press the ZERO button. Wait for 2 minute(s)

reaction time.

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

Silicate LR PP / M351

ENMethod Reference Book1.0 15

EN

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 Silica appears on the display.

Silicate LR PP / M351

ENMethod Reference Book1.016

EN

Analyses

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

Unit Cite form Scale Factor

mg/l SiO21

mg/l Si 0.47

Chemical Method

Heteropolyblue

Appendix

Interferences

Removeable Interferences

1. Close the vials with the cap immediately after adding the Vario Molybdate 3 reagent

solution, otherwise low readings may result.

2. Occasionally water samples contain forms of silica which reacts very slowly with

Molybdate. The nature of these forms is not known. A pre-treatment with Sodium

hydrogencarbonate and then with Sulphuric Acid will make these forms reactive to

Molybdate (pre-treatment is given in “Standard Methods for the Examination of Water

and Wastewater” under “ Silica Digestion with Sodium

Bicarbonate”).

Interference from / [mg/L]

Fe large quantities

PO4 3- 50

S2- in all quantities

Method Validation

Limit of Detection 0.01 mg/L

Limit of Quantification 0.03 mg/L

End of Measuring Range 1.6 mg/L

Sensitivity 1.35 mg/L / Abs

Confidence Intervall 0.01 mg/L

Standard Deviation 0.004 mg/L

Variation Coefficient 0.46 %

Silicate LR PP / M351

ENMethod Reference Book1.0 17

EN

Derived from

Standard Method 4500-SiO2 D

Silicate HR PP / M352

ENMethod Reference Book1.018

EN

Silicate HR PP M352

1 - 90 mg/L SiO2SiHr

Silicomolybdate

Material

Required material (partly optional):

Reagents Packaging Unit Part Number

VARIO Silica HR Reagent, Set F10 1 Set 535700

Preparation

1. The temperature of the sample should be between 15 °C and 25 °C.

Notes

1. The method measures in the flank of the absorption curve of the resulting coloration.

For filter photometers, the accuracy of the method can therefore be improved, if

necessary, by user adjustment using a silicate standard (approx. 70 mg/L SiO2).

Silicate HR PP / M352

ENMethod Reference Book1.0 19

EN

Determination of Silicate dioxide HR with Vario Powder Packs

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.

Sample

Add Vario Silica HR

Molybdate F10 powder

pack.

Close vial(s). Swirl around to dissolve the

powder.

Silicate HR PP / M352

ENMethod Reference Book1.020

EN

Sample

Add Vario Silica HR Acid

Rgt. F10 powder pack.

Close vial(s). Invert several times to mix

the contents.

9

4

5

6

7

8

10

11 12

1

2

3

10 min

Sample

Press the ENTER button. Wait for 10 minute(s)

reaction time.

Add Vario Silica Citric Acid

F10 powder pack.

Sample

Close vial(s). Swirl around to dissolve the

powder.

Place sample vial in the

sample chamber. Pay

attention to the positioning.

Silicate HR PP / M352

ENMethod Reference Book1.0 21

EN

Test

9

4

5

6

7

8

10

11 12

1

2

3

2 min

Press the TEST (XD:

START)button.

Wait for 2 minute(s)

reaction time.

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

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

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Lovibond Handbook of Methods MD100/110/200 Manuale utente

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