|
US$349.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3286.3-2012: Methods for chemical analysis of limestone and dolomite -- Part 3: The determination of aluminium oxide content -- The chrome azurol S spectrophotometric method and the complexometric titration method
Status: Valid GB/T 3286.3: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3286.3-2012 | English | 349 |
Add to Cart
|
3 days [Need to translate]
|
Methods for chemical analysis of limestone and dolomite -- Part 3: The determination of aluminium oxide content -- The chrome azurol S spectrophotometric method and the complexometric titration method
| Valid |
GB/T 3286.3-2012
|
| GB/T 3286.3-1998 | English | 279 |
Add to Cart
|
3 days [Need to translate]
|
Methods for chemical analysis of limestone and dolomite--The determination of aluminium oxide content
| Obsolete |
GB/T 3286.3-1998
|
| GB/T 3286.3-1982 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Chemical analysis of limestone and dolomite--The perchloric acid dehydration gravimetric method for determination of silicon dioxide
| Obsolete |
GB/T 3286.3-1982
|
PDF similar to GB/T 3286.3-2012
Basic data | Standard ID | GB/T 3286.3-2012 (GB/T3286.3-2012) | | Description (Translated English) | Methods for chemical analysis of limestone and dolomite -- Part 3: The determination of aluminium oxide content -- The chrome azurol S spectrophotometric method and the complexometric titration method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D52 | | Classification of International Standard | 73.080 | | Word Count Estimation | 15,140 | | Older Standard (superseded by this standard) | GB/T 3286.3-1998 | | Quoted Standard | GB/T 2007.2; GB/T 3286.1; GB/T 3286.2; GB/T 3286.4; GB/T 6379.2; GB/T 6682; GB/T 8170 | | Regulation (derived from) | National Standards Bulletin 2012 No. 28 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the use Chromazurol S spectrophotometry and complexometric titration alumina content. This section applies to limestone, dolomite alumina content, but also for metallurgical lime alumina content. Chromazurol S spectrophotometry, me | GB/T 3286.3-2012: Methods for chemical analysis of limestone and dolomite -- Part 3: The determination of aluminium oxide content -- The chrome azurol S spectrophotometric method and the complexometric titration method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS73.080
D52
National Standards of People's Republic of China
Replacing GB/T 3286.3-1998
Methods for chemical analysis of limestone and dolomite
Part 3. Determination of alumina content
Chromium Azure S Spectrophotometry and Complexometry
Part 3. Thedeterminationofaluminiumoxidecontent-Thechrome
Issued on. 2013-05-01 2012-11-05 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 3286 "Methods for chemical analysis of limestone and dolomite" is divided into nine sections.
--- Part 1. calcium oxide and magnesium oxide content complexometric titration and flame atomic absorption spectrometry;
--- Part 2. Determination of silica content of silicon molybdenum blue spectrophotometric method and perchloric acid dehydration gravimetric method;
--- Part 3. Determination of alumina content of chromium azure S spectrophotometric and complexometric titration;
--- Part 4. Determination of iron oxide content of phenanthroline spectrophotometric method and the flame atomic absorption spectrometry;
--- Part 5. Determination of manganese oxide content;
--- Part 6. Determination of phosphorus content;
--- Part 7. Determination of sulfur content;
--- Part 8. Determination of loss on ignition;
--- Part 9. Determination of the amount of carbon dioxide.
This is Part 3 GB/T 3286's.
Rules in this section in accordance with GB/T 1.1-2009 given draft.
This Part replaces GB/T 3286.3-1998 "limestone, dolomite chemical analysis of aluminum oxide content determination."
This section compared with the GB/T 3286.3-1998, mainly for the following changes.
--- This part of the standard name to "Methods for chemical analysis of limestone and dolomite - Part 3. Determination of aluminum oxide content of chromium Azure
S spectrophotometric and complexometric titration ";
--- Normative references canceled the reference standard reign, and adds some reference standards;
--- Carried out jointly between laboratory precision test statistics obtained by the repeatability limit (r) and reproducibility limit R instead of "allowable difference";
--- Change the part of the text expression.
This part is proposed by the China Iron and Steel Association.
This part of the National Steel Standardization Technical Committee (SAC/TC183) centralized.
This section is drafted. Wuhan Iron and Steel (Group) Corporation, Wuhan University of Science and Technology, Metallurgical Industry Information Standards Institute.
The main drafters of this section. Wen east, Chen Shihua, Shao Mei, Zhang Suizhong, Zhou Zheng, CAO Hong-yan, Yu Weihua, Xu Jianping, Chou Jinhui, Gao Jianping.
This part of the standard replaces the previous editions are.
--- GB/T 3286.3-1988;
--- GB/T 3286.5-1982;
--- GB/T 3286.6-1992.
Methods for chemical analysis of limestone and dolomite
Part 3. Determination of alumina content
Chromium Azure S Spectrophotometry and Complexometry
1 Scope
This section GB/T 3286 requirements using Chromium Azure S Spectrophotometry and complex titration alumina content.
This section applies to limestone and dolomite - The determination of aluminum oxide content, is also applicable to the determination of the metallurgical alumina content of lime. CHROME
Green S spectrophotometric measurement range. alumina content (mass fraction) from 0.01% to 0.75%; complexometric titration, measurement range. Alumina
Content (mass fraction) is greater than 0.5%.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2007.2 bulk minerals sampling and sample preparation General manual sample preparation method
GB /Part 1 T3286.1 limestone and dolomite Chemical analysis methods. Determination of calcium oxide and magnesium oxide content of the complex drops
Titration and flame atomic absorption spectrometry
GB/T 3286.2 limestone and dolomite chemical analysis - Part 2. Determination of silicon dioxide content of silicon-molybdenum blue spectrophotometric
Degree method and perchloric acid dehydration gravimetric method
GB/T 3286.4 limestone and dolomite Chemical analysis methods - Part 4. Determination of iron oxide content of phenanthroline spectrophotometric
Method and the flame atomic absorption spectrometry
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat
Of the basic methods of reproduction
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 8170 represents rounding off rules and limit values \u200b\u200band judgment
3 Chromium Azure S Spectrophotometry
3.1 Principle
Sample with sodium carbonate - boric acid flux melt, dilute hydrochloric acid leaching aliquot of the test solution, zinc -EDTA masking iron and manganese ions to.
Hexamethylenetetramine buffer solution at pH 5.7, aluminum and chrome azure S generated purple complex wavelength spectrophotometer
Absorbance was measured at 545nm. Interference titanium can be added to eliminate the hydrogen peroxide solution.
3.2 Reagents
Analysis Unless otherwise stated, use only reagents of recognized analytical grade and in line with GB/T 6682 provisions for more than three or pure distilled water
Considerable degree water.
3.2.1 mixed flux. Take two anhydrous sodium carbonate and a boric acid grind, and mix.
3.2.2 hydrochloric acid (15).
|