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Fertilizers - Determination of N-(1,2-dicarboxyethyl)-D,L-aspartic acid (Iminodisuccinic acid, IDHA) using high-performance liquid chromatography (HPLC)
90.93 Standard confirmed
Fertilizers - Extraction of phosphorus soluble in mineral acids
90.93 Standard confirmed
Fertilizers - Extraction of phosphorus which is soluble in neutral ammonium citrate
90.93 Standard confirmed
Inorganic fertilizers - Determination of extracted phosphorus P2O5
60.60 Standard published
Fertilizers - Extraction of total calcium, total magnesium, total sodium and total sulfur in the forms of sulfates
90.93 Standard confirmed
Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates
90.93 Standard confirmed
Fertilizers - Determination of the complexed micro-nutrient content and of the complexed fraction of micro-nutrients
90.93 Standard confirmed
Fertilizers - Determination of 1H-1,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)
90.93 Standard confirmed
Fertilizers - Extraction and determination of elemental sulfur
90.93 Standard confirmed
Fertilizers - Determination of N-(2-nitrophenyl)phosphoric triamide (2-NPT) in urea and fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)
90.93 Standard confirmed
Fertilizers - Determination of complexed micro-nutrient ions in fertilizers - Identification of lignosulfonates
90.93 Standard confirmed
Fertilizers - Determination of chlorides in the absence of organic material
90.60 Close of review
Fertilizers - Manganimetric determination of extracted calcium following precipitation in the form of oxalate
90.60 Close of review
Fertilizers - Determination of magnesium by atomic absorption spectrometry
90.60 Close of review
Fertilizers - Determination of the sodium extracted by flame-emission spectrometry
90.60 Close of review
Fertilizers and liming materials - Determination of arsenic by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution
90.93 Standard confirmed