This European Standard specifies a method for the determination of total and water extractable boron in mineral fertilizers containing more than 10 % boron. This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 16962 and/or EN 16964. NOTE A method used for the determination of boron in mineral fertilizers containing less than or equal to 10 % of boron (spectrophotometric determination by azomethine-H) can be also used for the scope of this method after appropriate dilution of the extracts.
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EN 12944-1:1999 Fertilizers and liming materials and soil improvers - Vocabulary - Part 1: General terms
EN 12944-2:1999 Fertilizers and liming materials and soil improvers - Vocabulary - Part 2: Terms relating to fertilizers
EN 1482-2:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
EN 12944-1:1999 Fertilizers and liming materials and soil improvers - Vocabulary - Part 1: General terms
EN 12944-2:1999 Fertilizers and liming materials and soil improvers - Vocabulary - Part 2: Terms relating to fertilizers
EN 1482-2:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
EN 16962:2018 Fertilizers - Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts
EN 16964:2018 Fertilizers - Extraction of total micro-nutrients in fertilizers using aqua regia
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)