食品级氢氧化钙  
     检验项目                标准值        检验结果  
    氢氧化钙（以干基计）含量% ≥95.0         98.1  
    水份%                    ≤1.0         0.34  
    盐酸不溶物含量%          ≤0.03         0.02  
    铁含量%                 ≤0.030        0.028  
    重金属（以Pb计）含量%    ≤0.002      <0.002  
    铅含量                  ≤0.0003     <0.0001  
    镁和碱金属含量%          ≤0.50       <0.50  
    砷含量%                 ≤0.0002     <0.0002  
    硫化物（以So4计）含量%   ≤0.50       <0.50  
    细度（过325目）         ≤0.5         0.2  
    白度                    ≥92.0        95