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Supporting research through quality and experience
Soil
PH Nitrachek
08.10 Hellige pH-indicator
The Hellige pH-indicator is a very simple apparatus to estimate the pH (acidity) of a soil for the purpose of a soil suitability indication and straight forward fertilizing advise. The pH is determined
on the basis of colour comparison.
18.40 Nitrachek reflectometer
The Nitrachek reflectometer is a pocket size digital measuring instrument for a simple and quick determination in the field of the nitrate content in water or in a watery extract of soil or crop. The method is based on read-out of nitrate test strips. After a test strip is held in the solution it is
placed in the optical read-out apparatus. The instrument has a memory for up to 20 measuring
sets with date/time indication. The measuring range is 5 - 500 ppm (mg/l) nitrate. The reading
accuracy is 1 mg/l. The instrument is supplied inclusive case, test strips, calibration solution and
accessories.
18.42 Nitrasol, set for determination of nitrate content in soil
For the determination of the nitrate content of the soil first a watery extract must be made of the
soil sample in a KCl solution (if preferred just distilled water or a CaCl2- solution). Subsequently the extract is filtered. The nitrate determination is executed on the filtrate.
18.44 pH field analysis set
For the direct determination of the pH of soils (and liquids) a special electrode is used.
Measurement of pH is based on semi conductor technology. The electrode has a measuring range
of 0-14 pH with an accuracy of 0.03 pH. Measurement depth is 80 mm. The electrode is used in
combination with a multimeter.
The Hellige pH-indicator is a very simple apparatus to estimate the pH (acidity) of a soil for the purpose of a soil suitability indication and straight forward fertilizing advise. The pH is determined
on the basis of colour comparison.
18.40 Nitrachek reflectometer
The Nitrachek reflectometer is a pocket size digital measuring instrument for a simple and quick determination in the field of the nitrate content in water or in a watery extract of soil or crop. The method is based on read-out of nitrate test strips. After a test strip is held in the solution it is
placed in the optical read-out apparatus. The instrument has a memory for up to 20 measuring
sets with date/time indication. The measuring range is 5 - 500 ppm (mg/l) nitrate. The reading
accuracy is 1 mg/l. The instrument is supplied inclusive case, test strips, calibration solution and
accessories.
18.42 Nitrasol, set for determination of nitrate content in soil
For the determination of the nitrate content of the soil first a watery extract must be made of the
soil sample in a KCl solution (if preferred just distilled water or a CaCl2- solution). Subsequently the extract is filtered. The nitrate determination is executed on the filtrate.
18.44 pH field analysis set
For the direct determination of the pH of soils (and liquids) a special electrode is used.
Measurement of pH is based on semi conductor technology. The electrode has a measuring range
of 0-14 pH with an accuracy of 0.03 pH. Measurement depth is 80 mm. The electrode is used in
combination with a multimeter.
