|
US$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3286.2-2025: Methods for chemical analysis of limestone and dolomite - Part 2: Determination of silicon and aluminium content
Status: Valid GB/T 3286.2: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3286.2-2025 | English | 439 |
Add to Cart
|
4 days [Need to translate]
|
Methods for chemical analysis of limestone and dolomite - Part 2: Determination of silicon and aluminium content
| Valid |
GB/T 3286.2-2025
|
| GB/T 3286.2-2012 | English | 329 |
Add to Cart
|
3 days [Need to translate]
|
Methods for chemical analysis of limestone and dolomite -- Part 2: The determination of silicon dioxide content -- The silicomolybdic blue spectrophotometric method and the perchloric acid dehydration gravimetric method
| Valid |
GB/T 3286.2-2012
|
| GB/T 3286.2-1998 | English | 239 |
Add to Cart
|
2 days [Need to translate]
|
Methods for chemical analysis of limestone and dolomite--The determination of silicon dioxide content
| Obsolete |
GB/T 3286.2-1998
|
| GB/T 3286.2-1982 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Chemical analysis of limestone and dolomite--The eriochrome black T photometric method for determination of magnesium oxide
| Obsolete |
GB/T 3286.2-1982
|
Basic data | Standard ID | GB/T 3286.2-2025 (GB/T3286.2-2025) | | Description (Translated English) | Methods for chemical analysis of limestone and dolomite - Part 2: Determination of silicon and aluminium content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D52 | | Classification of International Standard | 73.080 | | Word Count Estimation | 22,244 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 3286.2-2012, GB/T 3286.3-2012 | | Issuing agency(ies) | State Administration for Market Regulation; Standardization Administration of China | GB/T 3286.2-2025: Methods for chemical analysis of limestone and dolomite - Part 2: Determination of silicon and aluminium content
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3286.2-2025
ICS 73.080
CCSD52
National Standards of the People's Republic of China
Replaces GB/T 3286.2-2012 and GB/T 3286.3-2012
Chemical analysis methods for limestone and dolomite
Part 2.Determination of Silicon and Aluminum Content
Published on 2025-08-29
Implemented on 2026-03-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standard Documents".
Drafting.
This document is Part 2 of GB/T 3286, "Chemical Analysis Methods for Limestone and Dolomite". GB/T 3286 has been published as follows.
part.
---Part 1.Determination of Calcium Oxide and Magnesium Oxide Content by Complexometric Titration and Flame Atomic Absorption Spectrometry;
---Part 2.Determination of Silicon and Aluminum Content;
---Part 4.Determination of Iron Oxide Content by 1,000-phenanthroline Spectrophotometry and Flame Atomic Absorption Spectrometry;
---Part 5.Determination of Manganese Oxide Content. Periodate Oxidation Spectrophotometry;
---Part 6.Determination of Phosphorus Content. Phosphomolybdic Blue Spectrophotometry;
---Part 7.Determination of Sulfur Content. Tube Furnace Combustion-Potassium Iodate Titration, High-Frequency Combustion Infrared Absorption Method, and Barium Sulfate Gravimetric Method;
---Part 8.Determination of Loss on Ignition by Gravimetric Method;
---Part 9.Determination of Carbon Dioxide Content by Caustic Soda-Asbestos Absorption Gravimetric Method;
---Part 10.Determination of Titanium Dioxide Content by Diantipyrin Methane Spectrophotometry;
---Part 11.Determination of the content of calcium oxide, magnesium oxide, silicon dioxide, aluminum oxide and iron oxide Wavelength dispersive X-ray fluorescence
Spectroscopic method (fused glass slide method);
---Part 12.Determination of potassium oxide and sodium oxide content by flame atomic absorption spectrometry.
This document replaces GB/T 3286.2-2012 "Chemical Analysis Methods for Limestone and Dolomite - Part 2.Determination of Silica Content".
"Spectrophotometric Method for Determining the Desiccant Molybdenum Blue and Gravimetric Method for Dehydration with Perchloric Acid" and GB/T 3286.3-2012 "Chemical Analysis Methods for Limestone and Dolomite"
Part 3.Determination of Alumina Content by Chromium Azure S Spectrophotometric Method and Complexometric Titration Method, consistent with GB/T 3286.2-2012
Aside from structural adjustments and editorial modifications, the main technical changes are as follows.
a) The scope has been changed (see Chapter 1, Chapter 1 of the.2012 edition);
b) Added "Determination of Silicon and Aluminum Content. Inductively Coupled Plasma Atomic Emission Spectrometry" (see Chapter 8);
c) An "oxide conversion factor" has been added (see Chapter 9).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Iron and Steel Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This document was drafted by. China Certification & Inspection Group Fujian Co., Ltd., Wuhan University of Science and Technology, Wuhan Iron and Steel Co., Ltd., and Metallurgical Industry Information Technology Co., Ltd.
Information Standards Research Institute.
The main drafters of this document are. Li Ming, Wu Jianguang, Chen Weilong, Wang Xiaoyuan, Zhou Shuangqing, Wen Zhen, Chen Ningjie, Xu Jianping, Zhou Zheng, Bai Lizhou, and Yu.
Wei Hua, Lou Yunpeng, Wang Bo, Liu Yanting, Zhang Yarong, Chen Yiting, Chen Jielin, Wang Juntian, Cheng Zhaoyang.
The document replaced by this document has been released in the following versions.
---GB/T 3286.2-2012 (GB/T 3286.2-2012 replaces the following documents and previous version releases. GB/T 3286.2-)
1998 "Chemical Analysis Methods for Limestone and Dolomite. Determination of Silica Content", GB/T 3286.3-1982 "Limestone and Dolomite. Determination of Silica Content"
Determination of Silica by Perchloric Acid Dehydration Gravimetric Method in Limestone Chemical Analysis, GB/T 3286.4-1988 Limestone and Dolomite Chemical Analysis
Analytical Methods for the Determination of Silica by Molybdenum Blue Spectrophotometry
---GB/T 3286.3-2012 (GB/T 3286.3-2012 replaces the following documents and previous version releases. GB/T 3286.3-)
1998 "Chemical Analysis Methods for Determination of Alumina Content in Limestone and Dolomite", GB/T 3286.5-1982 "Limestone and Dolomite"
Chemical Analysis Methods. Determination of Alumina by EDTA Volumetric Method; GB/T 3286.6-1982.Chemical Analysis of Limestone and Dolomite
Methods. Determination of Alumina by Chromium Azurite S Spectrophotometry (《Method》).
introduction
To facilitate the detection of elements in limestone and dolomite, based on the elements to be determined and the methods used, GB/T 3286 "Limestone and Dolomite" is classified.
The proposed course "Chemical Analysis Methods" is divided into the following sections.
---Part 1.Determination of Calcium Oxide and Magnesium Oxide Content by Complexometric Titration and Flame Atomic Absorption Spectrometry;
---Part 2.Determination of Silicon and Aluminum Content;
---Part 4.Determination of Iron Oxide Content by 1,000-phenanthroline Spectrophotometry and Flame Atomic Absorption Spectrometry;
---Part 5.Determination of Manganese Oxide Content. Periodate Oxidation Spectrophotometry;
---Part 6.Determination of Phosphorus Content. Phosphomolybdic Blue Spectrophotometry;
---Part 7.Determination of Sulfur Content. Tube Furnace Combustion-Potassium Iodate Titration, High-Frequency Combustion Infrared Absorption Method, and Barium Sulfate Gravimetric Method;
---Part 8.Determination of Loss on Ignition by Gravimetric Method;
---Part 9.Determination of Carbon Dioxide Content by Caustic Soda-Asbestos Absorption Gravimetric Method;
---Part 10.Determination of Titanium Dioxide Content by Diantipyrin Methane Spectrophotometry;
---Part 11.Determination of the content of calcium oxide, magnesium oxide, silicon dioxide, aluminum oxide and iron oxide Wavelength dispersive X-ray fluorescence
Spectroscopic method (fused glass slide method);
---Part 12.Determination of potassium oxide and sodium oxide content by flame atomic absorption spectrometry.
Chemical Analysis Methods for Limestone and Dolomite
Part 2.Determination of Silicon and Aluminum Content
1.Scope
This document describes the determination of silicon dioxide using the silicomolybdenum blue spectrophotometric method, the perchloric acid dehydration gravimetric method, and inductively coupled plasma atomic emission spectrometry.
The alumina content was determined by spectrophotometry, complexometric titration and inductively coupled plasma atomic emission spectrometry.
This document applies to the determination of silica and alumina content in limestone, dolomite, and metallurgical lime. The silica-molybdenum blue spectrophotometric method is used for determination.
Range (mass fraction). Silica content 0.050%~4.00%; Perchloric acid dehydration gravimetric method, determination range (mass fraction). Silica
Content greater than 2.00%; Inductively coupled plasma atomic emission spectrometry, determination range (mass fraction). silica content 0.070%~
3.50%; Chromium Azure S spectrophotometric method, determination range (mass fraction). alumina content 0.010%~0.75%; complexometric titration method, determination range
Range (mass fraction). alumina content greater than 0.50%; Inductively coupled plasma atomic emission spectrometry, determination range (mass fraction). alumina content...
Quantity. 0.040%~1.00%.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 2007.2 General Rules for Sampling and Sample Preparation of Bulk Mineral Products - Manual Sample Preparation Method
GB/T 6379.1 Accuracy (correctness and precision) of measurement methods and results - Part 1.General principles and definitions
GB/T 6379.2 Accuracy (correctness and precision) of measurement methods and results - Part 2.Determining the repeatability of standard measurement methods
Basic methods of sex and representation
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values
GB/T 12806 Laboratory Glassware - Single-mark volumetric flasks
GB/T 12807 Graduated Pipettes for Laboratory Glassware
GB/T 12808 Laboratory Glassware - Single-mark Pipettes
JJG768 emission spectrometer
3.Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4.Determination of silicon content. Molybdenum blue spectrophotometry
4.1 Principle
The sample was melted with anhydrous sodium carbonate-boric acid mixed flux and leached with dilute hydrochloric acid. A portion of the solution was then isolated in approximately 0.15 mol/L hydrochloric acid medium.
In this process, ammonium molybdate reacts with silicic acid to form a silicomolybdate heteropoly acid. An oxalic acid-sulfuric acid mixture is added to eliminate interference from phosphorus and arsenic, and then the mixture is reduced with ferrous ammonium sulfate solution.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 3286.2-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 3286.2-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 3286.2-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 3286.2-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 3286.2-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3286.2-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|