DIN EN 15476-2009 肥料 根据德瓦达法测定氮和氨态氮含量
【英文标准名称】: Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; English version of DIN EN 15476:2009-04 【原文标准名称】: 肥料 根据德瓦达法测定氮和氨态氮含量 【标准号】: DIN EN 15476-2009 【标准状态】: 现行 【国别】: 德国 【发布日期】: 2009-04 【实施或试行日期】: 【发布单位】: 德国标准化学会(DE-DIN)【起草单位】: 【标准类型】: ()【标准水平】: ()【中文主题词】: 农业;氨态氮;化学分析和测试;含量测定;德瓦达;蒸馏;肥料;实验室间试验;数学计算;硝酸盐含量;硝酸盐;氮;抽样方法;土壤改良物质;试样制备;容量分析【英文主题词】: Agriculture;Ammoniacal nitrogen;Chemical analysis and testing;Determination of content;Devarda;Distillation;Fertilizers;Inter-laboratory tests;Mathematical calculations;Nitrate contents;Nitrates;Nitrogen;Sampling methods;Soil improving materials;Specimen preparation;Volumetric analysis【摘要】: This European Standard specifies a method for the determination of nitrate and ammoniacal nitrogen withreduction using Devarda alloy (modified for each of the variants a, b and c).The method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which nitrogen isfound exclusively in nitrate form or in ammoniacal and nitrate form.【中国标准分类号】: B10【国际标准分类号】: 65_080【页数】: 15P.;A4【正文语种】: 英语
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