Contents - MACHEREY-NAGEL VISOCOLOR Manual

Contents

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1. VISOCOLOR reagent case for soil analysis ........................................................................ 20
1.1 Analysis options....................................................................................................................................... 20
1.2 Content of the VISOCOLOR
1.3 Content of the VISOCOLOR
1.4 Working procedure.................................................................................................................................... 22
2. Soil analysis procedure ................................................................................................... 23
2.1 Sampling ................................................................................................................................................
2.2 Weighing and determination of moisture content .......................................................................................... 23
2.3 Sieving the soil sample.............................................................................................................................. 23
2.4 Determination of the soil density ............................................................................................................... 23
2.5 Preparation of soil extract A ..................................................................................................................... 24
2.6 Determination of the pH value .................................................................................................................. 24
2.7 Determination of nitrate and nitrite ............................................................................................................
2.8 Determination of ammonium ..................................................................................................................... 25
2.9 Preparation of soil extract B ..................................................................................................................... 25
2.10 Determination of phosphorus .................................................................................................................. 26
2.11 Determination of potassium ..................................................................................................................... 26
2.12 Determination of soil type (sedimentation analysis) .................................................................................... 27
3. Procedure for photometric soil analysis .............................................................................. 27
3.1 Preparation of soil extract AF ..................................................................................................................... 27
3.2 Determination of pH value ........................................................................................................................
3.3 Photometric determination of nitrate ......................................................................................................... 28
3.4 Photometric determination of nitrite............................................................................................................ 28
3.5 Photometric determination of ammonium ...................................................................................................
3.6 Preparation of soil extract B ..................................................................................................................... 29
3.7 Photometric determination of phosphorus................................................................................................... 29
3.8 Photometric determination of potassium ................................................................................................... 30
4. Calculation and correction of results ................................................................................. 31
4.1 Correction of moisture content .................................................................................................................. 31
4.2 Calculation referring to areas ..................................................................................................................... 31
4.3 Conversion into different dimensions ......................................................................................................... 31
Manual VISOCOLOR
Manual VISOCOLOR
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reagent case for soil analysis (REF 931601) ......................................................
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reagent case for soil analysis with PF-3 (REF 934220) ....................................... 21
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reagent case for soil analysis 02.19
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reagent case for soil analysis
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23
25
27
28
19