GB/T 28629-2024 in English

VALID

Methods for chemical analysis of free silicon dioxide in cement clinker

Issued on:2024-04-25
Implemented on:2024-11-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $310.00
$301.00

Standard No:	GB/T 28629-2024
Document status:	VALID
Title in English:	Methods for chemical analysis of free silicon dioxide in cement clinker
Title in Chinese:	水泥熟料中游离二氧化硅化学分析方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2024-04-25
Implemented on:	2024-11-01
Superseding:	GB/T 28629-2012 Methods for chemical analysis of free silicon dioxide for cement clinker
Professional Classification:	GB-National Standard
Related Keywords:	free silicon dioxide chemical analysis method cement clinker cement clinker introduction cement clinker gb/t28629 —
Related Topics:	Infrared Peak Silica Silica + Standard Fully Analytical Silica Silica infrared peak Cement chemical analysis method 2 Chloride Ion Chemical Analysis in Water Silica infrared peak Nitrogen dioxide analysis method Silica q3 Carbon Dioxide Analysis in Water Carbon Dioxide Analysis in Water water analysiscarbon dioxide free carbon dioxide in groundwater Water carbon dioxide analysis Sludge Oxidation Nitrogen dioxide analysis method Silica Analysis Silica m5 m5 silica How to analyze carbon dioxide in water Free Chlorine Analysis Carbon Dioxide Analyzer in Water Method for Determination of Free Water Silica Analysis Analysis method of carbon dioxide in water Silica Far Infrared Silica infrared peak free silica Silica and hydrofluoric acid Chemistry in Marinades Used Chemistry Analyzers silica dna Silica mid-infrared analytical chemistry used Carbon dioxide detection method in water Chemical Analysis of Cement Composition chemical separation Free Chlorine Analysis Silicon oxide detection in water How to analyze silica in water Chemical Analysis of Fluoride Ions in Water Carbon Dioxide Analysis in Seawater Dioxygen material Sulfur dioxide method in water Chemical Analysis Method of Cobalt Oxide Analysis method of deuterium oxygen in water Method for detection of silica in water Method for the detection of silica in water Free Water Test Method silica method dna extraction On-site free carbon dioxide Silica is volatile in water Used Chemical Analysis Equipment How to analyze eis in electrochemistry Oxygen Analysis in Water wavelength in silica Secondary data analysis method Class III Water Requirements for Chemical Analysis Determination method of magnesium oxide in cement Does silicon carbide contain free silicon dioxide? Silica Quantitative Analysis Silica Chemical Analysis Chemical Analysis of Hydrogen Peroxide GBT28629 GB/T 28629-2012 Detection of silica in water Alumina clinker Silica water quality Silicon molybdenum burning zirconium dioxide is not familiar Chemical free analysis Detection of Silica in Water Ion Chromatography Occupational Hygiene Free Silica Silica Assay Analysis Method gb176-2008 Cement chemical analysis method crystal water free water Crystal water free water NMR GB/T 176 Cement chemical analysis method Silica for analysis Free calcium oxide content of cement How to measure silicon in water Silica synthesis detection method Explain the development of electrochemical methods in separation Detection methods for silica Free silica testing standards Silica analytical grade Silica monitoring and analysis method national standard electric power Analysis method of silica in silica Water quality silica determination method Silica detection in water quality Cement free calcium measurement method Determination method of silica in the oxide layer on the surface of silicon steel Analysis method of uranium trisilicate two Cement clinker additives Silica analysis methods Determination method of silica in textiles Phosphorus content standards in cement clinker Water silica detection method How to collect free silica Method for detecting carbon dioxide in sterile water for injection Chemical concentration analysis and inspection methods Free carbon dioxide content in groundwater Silica water quality Simethicone Analysis Method Activated carbon silica gel in dioxin analysis methods Reversed-phase silica gel column separation method Free carbon dioxide is that analysis Hydrogen peroxide analysis method Low concentration silica analysis method Silica analysis in water Analysis of free carbon dioxide Determination method of silica in water quality Method for determination of free silica in water What are the chemical separation methods? Clinker free calcium oxide Free carbon dioxide detection method Silica Assay Method Silica standard curve in water Free carbon dioxide method validation National standard determination method for silica in water Method for determination of free ammonia in silanes National standard method for water quality silica testing Disease control silica detection method Chemical analysis method of crude germanium dioxide Methods for detecting silica in food Sludge separation method Detection method for free silica methods of separation in chemistry Determination method of water quality silica Free silica sampling method Free silica analysis method Separation and purification methods of polysaccharides Chromatographic methods Cement Silica Standard Curve Chemical separation methods Silica national standard method Free Silica Method Validation Silica air detection method Method for determination of silica in air New methods of chemical dosing Free silica content collection method Analytical methods for detecting silicon dioxide Three chemical separation methods Commonly used separation methods in pharmaceutical analysis Junior high school chemical substance separation method table Commonly used separation methods in analytical chemistry Introduction to separation methods commonly used in analytical chemistry Detection method of colloidal silica in water

《GB/T 28629-2024水泥熟料中游离二氧化硅化学分析方法》由TC184（全国水泥标准化技术委员会）归口，主管部门为中国建筑材料联合会。

Introduction

1. Standard background and technological evolution

The National Standard of the People's Republic of China GB/T 28629-2024 "Chemical Analysis Method for Free Silicon Dioxide in Cement Clinker" was issued in 2024, replacing the GB/T28629-2012 version. This standard mainly optimizes and supplements the determination method of free silicon dioxide in cement clinker, reflecting the progress of industry technology and the improvement of quality requirements.

2. Comparison of standard frameworks

Standard version	Main technical changes	Scope of application
GB/T28629—2012	- Deleted ammonium nitrate solution (20g/L) - Added nitric acid-ammonia mixed solution - Modified the washing steps and times	Applicable to the determination of free silicon dioxide in cement clinker
GB/T28629—2024	- Added the method of potassium hydroxide molten insoluble slag - Refined the provisions of the allowable difference - Optimized the titer calculation formula	Keep consistent and further improve the accuracy and operational standardization

3. Implementation Suggestions

3.1 Method Selection Suggestions

For samples with high precision requirements, it is recommended to use the phosphoric acid decomposition-hydrofluoric acid treatment weighing method (reference method).
When the free silica content is low, the phosphoric acid decomposition-silicon molybdenum blue spectrophotometry method or phosphoric acid decomposition-potassium fluorosilicate volumetric method can be used as an alternative method.

More samples: JC/T 2453-2018 JGJ 94-2008 NB/T 47013.2-2015

Sample only — not a preview of GB/T 28629-2024

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