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GB/T 21114-2019

Chinese Standard: 'GB/T 21114-2019'
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GB/T 21114-2019English1329 Add to Cart Days<=10 Refractories -- Chemical analysis by X-ray fluorescence (XRF) -- Fused cast-bead method Valid GB/T 21114-2019
GB/T 21114-2019Chinese49 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]  

   

BASIC DATA
Standard ID GB/T 21114-2019 (GB/T21114-2019)
Description (Translated English) Refractories - Chemical analysis by X-ray fluorescence(XRF) - Fused cast-bead method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q40
Classification of International Standard 81.080
Word Count Estimation 74,792
Date of Issue 2019-06-04
Date of Implementation 2020-05-01
Older Standard (superseded by this standard) GB/T 21114-2007
Drafting Organization Baoshan Iron and Steel Co., Ltd., Sinosteel Luoyang Refractory Materials Research Institute Co., Ltd., Jiangsu Ceramics Refractory Product Quality Supervision and Inspection Center, Zhejiang Zili High Temperature Technology Co., Ltd., Zhejiang Zili New Materials Co., Ltd.
Administrative Organization National Technical Committee for Refractory Standardization (SAC/TC 193)
Regulation (derived from) National Standard Announcement No. 7 of 2019
Proposing organization National Technical Committee for Refractory Standardization (SAC/TC 193)
Issuing agency(ies) State Administration of Markets and China National Standardization Administration

GB/T 21114-2019
Refractories - Chemical analysis by X-ray fluorescence (XRF) - Fused cast-bead method
ICS 81.080
Q40
National Standards of People's Republic of China
Replace GB/T 21114-2007
Refractory X-ray fluorescence spectrochemical analysis
Cast glass method
[ISO 12677.2011, Chemicalanalysisofrefractoryproductsby
X-rayfluorescence (XRF)-Fusedcast-beadmethod, MOD]
Published on.2019-06-04
2020-05-01 implementation
State market supervision and administration
China National Standardization Administration issued
Content
Foreword I
1 range 1
2 Normative references 1
3 material type 1
4 Principle 2
5 device 2
6 sample preparation 3
7 Determination of ignition loss (and/or dry) 3
8 flux 3
9 melt casting procedure 4
10 calibration 6
11 correction 13
12 Reproducibility and repeatability 15
13 Accuracy measured with certified standard samples 16
14 Definition of detection limits 17
15 Test report 17
Appendix A (Normative) Calibration Range and Detection Limit 19
Appendix B (Normative) Correction of Tungsten Carbide Grinding Medium
Appendix C (informative) Flux and dilution ratio 26
Appendix D (Normative Appendix) Example of Certified Standard Sample (CRM) for Verification of Synthetic Calibration 27
Appendix E (Normative Appendix) Example of Series Standard Sample (SeRM) 33
Appendix F (Normative Appendix) Theoretical Calculation Equation 39
Appendix G (Normative) Certified Standard Sample (CRM) 40
Appendix H (Normative) Correction method for compensating for coexistence component interference when calibrating with SeRM 43
Appendix I (Normative) Standard deviations obtained using certified standard samples 64
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 21114-2007 "Refractory X-ray fluorescence spectrochemical analysis of molten cast glass sheet method", and
Compared with GB/T 21114-2007, the main technical changes are as follows.
--- Revised scope (see Chapter 1, Chapter 1 of the.2007 edition);
--- Revised the canonical reference document (see Chapter 2, Chapter 2 of the.2007 edition);
--- Added the relevant content of the mechanical mixer (see 5.8);
--- The amount of impurity 3D/R in the flux was changed to D/3R (see 8.1.9, 8.1.9 of the.2007 edition);
---Form m (1
) changed to m (
100-wL
) (see 9.1.3, version 9.2.3 of.2007);
--- Added provisions for the addition of other components to the calibration sample (see 10.2.1);
--- Increased the calibration range and detection limit of the phosphorus pentoxide component (see Table A.1, Table A.2);
--- Added some standard samples (see Table D.8, Table D.17 in Appendix D);
--- Added Table I.16, Table I.17, Table I.18 (see Appendix I).
This standard uses the redrafting method to modify the use of ISO 12677.2011 "refractory products X-ray fluorescence spectrochemical analysis (XRF) melting
Cast Glass Method.
The technical differences between this standard and ISO 12677.2011 and their reasons are as follows.
--- Amend the scope of application to "This standard applies to the types of materials listed in Chapter 3, other refractory types can be used for reference",
To adapt to the technical conditions of our country;
---About the normative reference documents, this standard has made technical adjustments to adapt to China's technical conditions, adjustments
The situation is reflected in Chapter 2, “Regulatory Citations”, and the specific adjustments are as follows.
● Add references to GB/T 3286.8, GB/T 4513.2, GB/T 6900, GB/T 10325, GB/T 15000.7,
GB/T 17617;
● Replace ISO 565 with GB/T 6005 modified to international standards;
● Remove ISO Guide 35.2006, ISO 26845;
--- Will be applied to laboratory samples in paragraph 1 of Chapter 6, and "Note 1. Large sampling is outside the scope of this method, but
Found in ISO 26845. "Change to "collect laboratory samples according to GB/T 10325, GB/T 17617 and GB/T 4513.2",
To adapt to the technical conditions of our country;
--- Revised the chapter number of Chapter 9 to adapt to the technical conditions of our country;
--- Supplemented in 10.2.1. high-purity reagent ammonium dihydrogen phosphate and potassium dihydrogen phosphate for convenient use;
---In Table A, Table A.1, Table A.2 adds the calibration range and detection limit of the phosphorus pentoxide component for ease of use;
--- Added the relevant content of domestic standard samples in Appendix D for ease of use;
--- Added the contents of the domestic standard series of refractory materials in Appendix E for ease of use;
--- According to the results of the joint test, the allowable difference of iron oxide in Appendix G has been appropriately modified to adapt to the technical conditions of China;
--- Appendix I added the use of domestic series of standard sample melt repeatability results for ease of use.
This standard has made the following editorial changes.
--- Modified the standard name;
--- Increased in 10.4.2.2 "Note. Other calibration equations can also be used";
--- Added some flux and melt ratio content in Appendix C;
--- Add in Appendix F "Base correction alpha coefficient can be calculated according to the software provided by the manufacturer";
--- Add in Appendix H "can use the calibration method provided by the manufacturer";
--- Removed references.
Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents.
This standard is proposed and managed by the National Technical Committee for Refractory Standardization (SAC/TC193).
This standard was drafted. Baoshan Iron and Steel Co., Ltd., Sinosteel Luoyang Refractory Materials Research Institute, Jiangsu Ceramics
Fire Materials Product Quality Supervision and Inspection Center, Zhejiang Zili High Temperature Technology Co., Ltd., Zhejiang Zi Li New Materials Co., Ltd.
The main drafters of this standard. Lu Xiaoming, Li Heshan, Zhang Xiang, Zhang Yi, Cao Haijie, Zhu Huiliang, Yu Yan, Zhu Dongdong, Xu Xiaoying, Ma Xufeng,
Gao Jianrong, Dai Qianyun, Chen Qin, Chen Yaosheng.
The previous versions of the standards replaced by this standard are.
---GB/T 21114-2007.
Refractory X-ray fluorescence spectrochemical analysis
Cast glass method
1 Scope
This standard specifies the chemical analysis method of refractory materials and ceramics composed of oxides.
Light spectrum (hereinafter referred to as XRF) was measured.
This standard applies to the types of materials listed in Chapter 3. Other refractory types can be used as reference.
Note 1. When the content of certain elements in the sample exceeds a certain amount, such as tin, copper, zinc and chromium, melting will be difficult, in which case refer to the corresponding literature.
Note 2. For all components with a mass fraction greater than 99% (dry basis), if all the trace components present and the ignition loss have been determined, the difference is obtained by subtraction.
Values can also be verified by direct measurements.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Methods for chemical analysis of limestone and dolphins - Part 8
GB/T 4513.2 Unshaped refractories - Part 2. Sampling (GB/T 4513.2-2017, ISO 1927-2.2012, IDT)
Basic dimensions of GB/T 6005 test sieve wire mesh, perforated plate and electroformed sheet mesh (GB/T 6005-
2008, ISO 565.1990, MOD)
GB/T 6900 Aluminum-silicon refractory chemical analysis method
GB/T 10325 Shaped Refractory Products Acceptance Sampling Inspection Rules (GB/T 10325-2012, ISO 5022.1979, NEQ)
GB/T 15000.7 Standard Sample Working Guidelines (7) General Requirements for Standard Sample Producer Capabilities (GB/T 15000.7-2012,
ISO Guide 34.2009, IDT)
GB/T 17617 Refractory raw materials sampling inspection rules (GB/T 17617-2018, ISO 8656-1. 1988, MOD)
3 material type
The various types of refractory materials analyzed using this standard are listed below. Appendix I lists the repeatability and reproducibility of some materials.
The data can be used as a reference for the first time using this standard.
a) High aluminum (the mass fraction of Al2O3 is greater than 45%)
b) Aluminosilicate (Al2O3 mass fraction is 7%~45%)
c) siliceous (mass fraction of SiO2 is greater than 93%)
d) zircon
e) Zirconia and zirconate
f) Magnesium
g) Magnesium aluminum spinel (~70/30)
h) Dolomite
i) Limestone
j) Magnesium oxide/chromium oxide
Related standard: GB/T 15545-2020    GB/T 16546-2020
Related PDF sample: GB/T 21114-2007    GB/T 16546-2020