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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 45131-2025 |
Analytical Methods for Boiler and Cooling Water - Determination of Phosphate, Chloride, Silicate, Total Alkalinity, Phenolphthalein Alkalinity, Hardness, and Iron - Spectrophotometric Method Based on a Discontinuous Analyzer System {译} 锅炉用水和冷却水分析方法-磷酸盐、氯化物、硅酸盐、总碱度、酚酞碱度、硬度和铁的测定-基于间断分析系统的分光光度法 |
China National Standards Determination total silica |
 English PDF |
| GB/T 223.5-2008 |
Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method 钢铁 酸溶硅和全硅含量的测定 还原型硅钼酸盐分光光度法 |
China National Standards Determination total silica |
English PDF |
| GB/T 15816-1995 |
Determination of total silica content in detergents and soaps--Gravimetric method 洗涤剂和肥皂中总二氧化硅含量的测定 重量法 |
China National Standards Determination total silica |
English PDF |
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