GB/T 24231-2009 English PDF

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GB/T 24231-2009: Chrome ores -- Determination of magnesium, aluminum, silicon, calcium, titanium, vanadium, chrome, manganese, iron and nickel content -- Wavelength dispersive X-ray fluorescence spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24231-2009	279	Add to Cart	3 days	Chrome ores -- Determination of magnesium, aluminum, silicon, calcium, titanium, vanadium, chrome, manganese, iron and nickel content -- Wavelength dispersive X-ray fluorescence spectrometric method	Valid

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Basic data

Standard ID: GB/T 24231-2009 (GB/T24231-2009)
Description (Translated English): Chrome ores -- Determination of magnesium, aluminum, silicon, calcium, titanium, vanadium, chrome, manganese, iron and nickel content -- Wavelength dispersive X-ray fluorescence spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D33
Classification of International Standard: 73.060.30
Word Count Estimation: 12,158
Date of Issue: 2009-07-15
Date of Implementation: 2010-04-01
Regulation (derived from): National Standard Approval Announcement 2009 No.9 (Total No.149)
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 determination of chromium magnesium ores by wavelength dispersive X -ray fluorescence spectrometry, aluminum, silicon, calcium, titanium, vanadium, chromium, manganese, iron and nickel content. This standard applies to chrome ore, determination of the content of these elements in chromite. Measurement range of each element (expressed as the oxide) as shown in Table 1.

GB/T 24231-2009: Chrome ores -- Determination of magnesium, aluminum, silicon, calcium, titanium, vanadium, chrome, manganese, iron and nickel content -- Wavelength dispersive X-ray fluorescence spectrometric 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.
Chrome ores.Determination of magnesium, aluminum, silicon, calcium, titanium, vanadium, chrome, manganese, iron and nickel content.Wa wavelength dispersive X-ray fluorescence spectrometric method ICS 73.060.30 D33 National Standards of People's Republic of China Chrome ore magnesium, aluminum, silicon, calcium, titanium, vanadium, Determination of chromium, manganese, iron and nickel content Wavelength Dispersive X - ray Fluorescence Spectroscopy 2009-07-15 released 2010-04-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

Appendix A, Appendix B and Appendix C of this standard are informative. This standard is proposed by China Iron and Steel Industry Association. This standard is owned by the National Technical Committee on Standardization of Pig Iron and Ferroalloy. The main drafting unit of this standard. Ningbo Inspection and Quarantine Science and Technology Research Institute, Qinhuangdao Entry-Exit Inspection and Quarantine Bureau, Tianjin Entry and Exit Inspection Quarantine Bureau, Metallurgical Industry Information Standards Institute. The main drafters of this standard. Zhang Jianbo, Chen Jianguo, Lin Li, Ying Haisong, Wang Qian, Gu Songhai, Jiang Haitao, Chen Zibin. Chrome ore magnesium, aluminum, silicon, calcium, titanium, vanadium, Determination of chromium, manganese, iron and nickel content Wavelength Dispersive X - ray Fluorescence Spectroscopy WARNING - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions question. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national laws and regulations.

1 Scope

This standard specifies the determination of magnesium, aluminum, silicon, calcium, titanium, vanadium, chromium, manganese, iron and nickel in chrome ore by wavelength dispersion X-ray fluorescence spectrometry content. This standard applies to chrome ore, chromite in the determination of the above elements, the determination of the elements (in terms of oxide) in Table 1. Table 1 Measurement range of each element Component determination range (mass fraction) /% Al2O3 9.3 to 29.3 CaO 0.17 to 1.30 Cr2O3 20.7 to 55.5 Fe2O3 13.6 ~ 27.7 MgO 9.9 to 21.5 MnO 0.1 to 0.4 NiO 0.05 to 0.24 SiO2 0.61 to 14.64 TiO2 0.1 to 0.56 V2O5 0.03 to 0.47

2 normative reference documents

The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard. GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) - Part 2. Determination of standard measurement methods The basic method of sex and reproducibility (GB/T 6379.2-2004, ISO 5725-2..1994, IDT) GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) Metallurgical products - Methods of analysis - General principles of X - ray fluorescence spectroscopy GB/T 24243 Chromium ore samples (GB/T 24243-2009, ISO 6153. 1989, IDT) ISO 6154 Preparation of chrome ore samples

3 principle

The powder sample is melted with a suitable flux to remove the mineral effect and particle effect of the sample and cast into a suitable X-ray fluorescence spectrum Measuring the shape of the glass. Measure the fluorescence X-ray intensity of the characteristic lines of the element to be measured in the glass sheet, according to the calibration curve or equation Analysis, and the inter-element interference effect correction, in order to obtain the content of the elements to be measured. ......

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