GB/T 28629-2024 《Methods for chemical analysis of free silicon dioxide in cement clinker》 Related products

GB/T 28629-2024 specifies three methods for chemical analysis of free silica in cement clinker: phosphoric acid analysis - hydrofluoric acid treatment weighing method, phosphoric acid analysis - silicon molybdenum blue Spectrophotometric method, spec-trophotometry and phosphoric acid analysis - potassium fluorosilicate volumetric method. This standard applies to the accurate determination of free silica content in cement clinker. Those using this standard should follow the relevant normative reference documents to ensure the accuracy and Reliability of the analysis results.