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STN - Slovak standards
Page 4980
STN 654940 (01/05/1981) Withdrawn
Concentrates of phosphorus and apatite. Test methods
Available design: Print design
STN EN 16651 (01/09/2015)
Fertilizers - Determination of N-(n-Butyl)thiophosphoric acid triamide (NBPT) and N-(n-Propyl)thiophosphoric acid triamide (NPPT) - Method using high-performance liquid chromatography (HPLC)
Available languages: English
Available design: Print design
STN EN 17042 (01/03/2019)
Fertilizers - Determination of boron in concentrations > 10 % using acidimetric titration
Available languages: English
Available design: Print design
STN EN 17041 (01/03/2019)
Fertilizers - Determination of boron in concentrations 10 % using spectrometry with azomethine-H
Available languages: English
Available design: Print design
STN EN 16962 (01/07/2018)
Fertilizers - Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts
Available languages: English
Available design: Print design
STN EN 16963 (01/07/2018)
Fertilizers - Determination of boron, cobalt, copper, iron, manganese, molybdenum and zinc using ICP-AES
Available languages: English
Available design: Print design
STN EN 16964 (01/07/2018)
Fertilizers - Extraction of total micro-nutrients in fertilizers using aqua regia
Available languages: English
Available design: Print design
STN EN 16965 (01/07/2018)
Fertilizers - Determination of cobalt, copper, iron, manganese and zinc using flame atomic absorption spectrometry (FAAS)
Available languages: English
Available design: Print design
STN EN 17043 (01/03/2019)
Fertilizers - Determination of molybdenum in concentrations 10 % using spectrometry of a complex with ammonium thiocyanate
Available languages: English
Available design: Print design
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