Home / Standards / GB/T 5069.13-2001 GB/T 5069.13-2001 Chemical analysis of magnesia and magnesia-alumina refractories—Determination of potassium oxide and sodium oxide by flame atomic absorption spectrometry 镁质及镁铝质耐火材料化学分析方法 火焰原子吸收光谱法测定氧化钾、氧化钠量 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A