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Fertilizers and liming materials - Determination of arsenic by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
50.60 Close of voting. Proof returned by secretariat
Fertilizers and liming materials - Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)
90.93 Standard confirmed
Fertilizers and liming materials - Determination of chromium (VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)
40.60 Close of voting
Fertilizers and liming materials - Determination of cadmium, chromium, lead and nickel by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
90.93 Standard confirmed
Fertilizers and liming materials - Determination of cadmium, chromium, lead and nickel by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
50.60 Close of voting. Proof returned by secretariat
Fertilizers and liming materials - Determination of mercury by vapour generation (VG) after aqua regia dissolution
90.93 Standard confirmed
Fertilizers and liming materials - Determination of mercury by vapour generation (VG) after aqua regia dissolution
50.60 Close of voting. Proof returned by secretariat
Fertilizers - Determination of 3,4-dimethyl-1H-pyrazole phosphate (DMPP) - Method using high-performance liquid chromatography (HPLC)
90.60 Close of review
Carbonate liming materials - Determination of reactivity - Automatic titration method with citric acid
90.93 Standard confirmed
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)
90.93 Standard confirmed
Fertilizers - Determination of complexing agents in fertilizers - Identification of heptagluconic acid by chromatography
90.93 Standard confirmed
Fertilizers - Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts
90.93 Standard confirmed
Fertilizers - Determination of boron, cobalt, copper, iron, manganese, molybdenum and zinc using ICP-AES
90.93 Standard confirmed
Fertilizers - Extraction of total micro-nutrients in fertilizers using aqua regia
90.93 Standard confirmed
Fertilizers - Determination of cobalt, copper, iron, manganese and zinc using flame atomic absorption spectrometry (FAAS)
90.93 Standard confirmed
Fertilizers - Determination of boron in concentrations ≤ 10 % using spectrometry with azomethine-H
90.60 Close of review
Fertilizers - Determination of boron in concentrations > 10 % using acidimetric titration
90.60 Close of review
Fertilizers - Determination of molybdenum in concentrations ≤ 10 % using spectrometry of a complex with ammonium thiocyanate
90.60 Close of review