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GB/T 27975-2011: Methods for chemical analysis of granulated blast furnace slag
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Methods for chemical analysis of granulated blast furnace slag
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GB/T 27975-2011
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Basic data | Standard ID | GB/T 27975-2011 (GB/T27975-2011) | | Description (Translated English) | Methods for chemical analysis of granulated blast furnace slag | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q11 | | Classification of International Standard | 91.100.10 | | Word Count Estimation | 17,196 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-10-01 | | Quoted Standard | GB/T 176; GB/T 2007.1; GB/T 6682; GB/T 17671; JC/T 681 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 23 of 2011 | | 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 granulated blast furnace slag in silica, iron oxide, aluminum oxide, calcium oxide, magnesium oxide, manganese oxide, titanium dioxide, fluoride, total sulfur, LOI, chloride, water-soluble hexavalent chromium, alkali content, sulfur trioxide, a chemical analysis of water content. This standard applies to granulated blast furnace slag and other materials specified in this standard chemical analysis. | GB/T 27975-2011: Methods for chemical analysis of granulated blast furnace slag---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.
Methods for chemical analysis of granulated blastfurnace slag
ICS 91.100.10
Q11
National Standards of People's Republic of China
Chemical analysis of the granulated blast furnace slag
Issued on. 2011-12-30
2012-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
Basic requirements 3 Test 1
4 Reagents and materials 2
Instruments and equipment 4 5
Sample Preparation 6 6
7 Determination of moisture content of 6
8 Determination of loss on ignition - ignition subtraction 6
9 Determination of potassium oxide and sodium oxide --- a flame photometric method (Reference method) 7
10 Determination of potassium oxide and sodium oxide --- Atomic Absorption Spectrometry (generation of usage) 8
Determination of total sulfur 9 11
12 9 Determination of sulfur trioxide
Determination of water-soluble hexavalent chromium 13 10
14 silica, iron oxide, aluminum oxide, calcium oxide, magnesium oxide, manganese oxide, titanium oxide, sulfide, fluoride,
Determination of chloride 11
15 repeatability limit and reproducibility limit 11
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by China Building Materials Federation.
This standard by the National Standardization Technical Committee cement (SAC/TC184) centralized.
This standard was drafted. China Building Materials Science Research Institute, China Building Material Test Certification Center Co., Ltd., Jiaxing Southern Water
Limited mud.
The main drafters of this standard. Cui Jian, Liu Long, Wang Ruihai, Huang Qinglin, Nizhu Jun, wearing flat, in grams of filial piety, yellow small building, Wen Yugang.
Chemical analysis of the granulated blast furnace slag
1 Scope
This standard specifies the granulated blast furnace slag in silica, iron oxide, aluminum oxide, calcium oxide, magnesium oxide, manganese dioxide
Titanium, fluoride, total sulfur, loss on ignition, chloride, water-soluble hexavalent chromium, alkali content, sulfur trioxide, a chemical analysis of water content.
This standard applies to granulated blast furnace slag and chemical analysis specified in this standard to other materials.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 176 chemical analysis of cement
GB/T 2007.1 bulk minerals sampling and sample preparation General manual sampling methods
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 17671 cement mortar strength test method (ISO method) (GB/T 17671-1999, IDTISO 679. 1989)
JC/T 681 planetary cement mortar mixer
Basic requirements 3 trials
3.1 the number of trials
Each number is measured twice, indicating that the measurement result by the average of the two test results.
During chemical analysis, unless otherwise indicated, shall be measured at the same time the loss on ignition; the other blank test should be measured at the same time,
And to correct the measurement results.
It represents 3.2 mass, volume, titer and results
Grams (g) represents the mass, accurate to 0.0001g. Burette volume in milliliters (mL) said accurate to 0.05mL. Single titer
Indicates milligrams per milliliter (mg/mL).
Unless otherwise indicated, the results of the analysis are mass fraction. The results expressed in% to two after the decimal point.
3.3 blank test
Using the same quantities of reagents, no test, tested in accordance with the same measurement step, the measurement result is corrected.
3.4 Burning
The filter paper and the precipitate is fired and the constant has been previously placed in a crucible, in order to avoid generating a flame dried slowly in an oxidizing atmosphere, ashing,
Ashing to no black carbon particles, into the high-temperature furnace (5.6), and at a predetermined temperature burning. Cool to room temperature in a desiccator, and weigh.
3.5 constant
After the first burning, cooling, weighing, by continuous burning for every 15min, then cooled, weighing method to check the constant quality
Amount, when the difference is less than two consecutive weighing 0.0005g, which reached constant.
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