Agricultural tractors and self-propelled sprayers - Protection of the operator (driver) against hazardous substances - Part 2: Filters, requirements and test procedures
Inorganic fertilizers - Determination of methylen-urea oligomers using high-performance liquid chromatography (HPLC)
Fertilizers - Determination of sulfates content using three different methods
Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
Agricultural machinery - Fixed guards and interlocked guards with or without guard locking for moving transmission parts (ISO/TS 28923:2012 modified)
Fertilizers - Determination of 3-methylpyrazole (MP) using high-performance liquid chromatography (HPLC)
Fertilizers - Determination of calcium and formate in calcium foliar fertilizers
Fertilizers - Extraction of phosphorus soluble in 2 % formic acid
Fertilizers - Extraction of phosphorus soluble in 2 % citric acid
Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
Fertilizers - Extraction of soluble phosphorus according to Petermann at ambient temperature
Fertilizers - Extraction of phosphorus soluble in Joulie's alcaline ammonium citrate
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