This Technical Specification specifies a method for the determination of nitrate and ammoniacal nitrogen with reduction according to Ulsch. The method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which nitrogen is found exclusively in nitrate form, or in ammoniacal and nitrate form.
BS DD CEN/TS 15558-2007由英国标准学会 GB-BSI 发布于 2007-05-31,并于 2007-05-31 实施,于 2009-02-28 废止。
BS DD CEN/TS 15558-2007 在中国标准分类中归属于: G21 化肥、化学土壤调理剂,在国际标准分类中归属于: 65.080 肥料。
BS DD CEN/TS 15558-2007 肥料.依照Ulsch的氮和氨态氮的测定 于 2009-02-28 变更为 BS EN 15558-2009 肥料.根据Ulsch测定氮含量和氨态氮含量。
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