Home / Standards / GB 12156-89 GB 12156-89 Analysis of water for boiler and cooling systems—Determination of sodium—Static method 锅炉用水和冷却水分析方法 钠的测定 静态法 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A