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tu rang zhong ge wei sheng jian yan biao zhun fang fa
Pages: 42-47
Year: Issue:  5
Journal: Journal of Hygiene Research

Keyword:  国家标准原子吸收分光光度法标准方法卫生检验样品采集土壤二苯碳酰二肼比色法原子吸收法测定标准溶液制备;
Abstract: <正> 1.定义1.1本标准规定土样经混合酸溶样处理后,测定土壤中全量铬的方法. 1.2本标准分为二篇: 第一篇原子吸收分光光度法. 第二篇二苯碳酰二肼比色法. 2.样品的采集与制备按土壤样品采集和制备标准方法执行. 3.样品含水量的测定按GB7172-87执行.
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