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Fertilizers - Determination of molybdenum in concentrations > 10 % using a gravimetric method with 8-hydroxyquinoline
60.60 Standard published
Fertilizers - Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C
60.60 Standard published
Liming materials - Determination of neutralizing value - Titrimetric methods
90.93 Standard confirmed
Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 2: Determination of Fe chelated by [o,o] EDDHA, [o,o] EDDHMA and HBED, or the amount of chelating agents, by ion pair chromatography
90.93 Standard confirmed
Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 3: Determination of [S,S]-EDDS by ion pair chromatography
90.93 Standard confirmed
Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling
90.93 Standard confirmed
Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
90.93 Standard confirmed
Fertilizers and liming materials - Sampling and sample preparation - Part 3: Sampling of static heaps
90.92 Standard to be revised
Fertilizers - Determination of sulfates content using three different methods
60.60 Standard published
Fertilizers - Determination of 3-methylpyrazole (MP) using high-performance liquid chromatography (HPLC)
90.93 Standard confirmed
Fertilizers - Determination of calcium and formate in calcium foliar fertilizers
90.93 Standard confirmed
Fertilizers - Extraction of phosphorus soluble in 2 % formic acid
90.93 Standard confirmed
Fertilizers - Extraction of phosphorus soluble in 2 % citric acid
90.93 Standard confirmed
Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
90.93 Standard confirmed
Fertilizers - Extraction of soluble phosphorus according to Petermann at ambient temperature
90.93 Standard confirmed
Fertilizers - Extraction of phosphorus soluble in Joulie's alcaline ammonium citrate
90.93 Standard confirmed
Fertilizers - Determination of the fineness of grinding of soft natural phosphates
90.93 Standard confirmed
Fertilizers - Extraction of total sulfur present in various forms
90.93 Standard confirmed