2.2.2. DEGREE OF COLORATION OF LIQUIDS 2.2.2 溶液的色度 The examination of the degree of coloration of liquids in the range brown-yellow-red is carried out by one of the 2 methods below,
硫酸亚铁铵滴定法测定锰Determination of Mangane by Ammonium Ferrous Sulfate Titration一、 方法原理以磷酸为络合剂和溶解剂，在硫磷混酸中滴加硝酸助溶，样品分解完全后添加氧化剂硝酸铵将Mn2+氧化到Mn3+的磷酸络合物，再用硫酸亚铁铵标准溶液滴定Mn3+，其反应式如下：2mg钛，0.2mg铈，0.1mg五氧化二钒、铬（）对锰的干扰不明显
中华人民共和国国家标准 GB 5413.34—2010食品安全国家标准 乳和乳制品酸度的测定 National food safety standard Determination of acidity in milk and milk products 类似五十度灰2010-03-26发布 2010-06-01实施音乐教学工作计划中华人民共和国卫生部发布 GB 5413.34—2010 前言本标
1) magnesia brick rich in CaO 镁钙砖例句：Reviews the experiment that ladle liner is built by no firing Aluminum-magnesium-carbon Fireproof Bricks instead of tar steamed clay bricks. 介绍了用不烧铝镁钙砖取代焦油煮粘土
