YS/T 702-2009 English PDF

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YS/T 702-2009: Determination of silicon oxide, Iron oxide, Sodium oxide content of Aluminum Hydroxide by X-ray fluorescence spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 702-2009	169	Add to Cart	3 days	Determination of silicon oxide, Iron oxide, Sodium oxide content of Aluminum Hydroxide by X-ray fluorescence spectrometric method	Valid

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Basic data

Standard ID: YS/T 702-2009 (YS/T702-2009)
Description (Translated English): Determination of silicon oxide, Iron oxide, Sodium oxide content of Aluminum Hydroxide by X-ray fluorescence spectrometric method
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H30
Classification of International Standard: 71.120.10
Word Count Estimation: 6,632
Date of Issue: 2009-12-04
Date of Implementation: 2010-06-01
Regulation (derived from): MIIT [2009] No. 66
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the aluminum hydroxide SiO (2), Fe (2) O (3), Na (2) O content determination. This standard applies to aluminum hydroxide SiO (2), Fe (2) O (3), Na (2) O content. Measuring range in Table 1.

YS/T 702-2009: Determination of silicon oxide, Iron oxide, Sodium oxide content of Aluminum Hydroxide by 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.
Determination of silicon oxide, Iron oxide, Sodium oxide content of Aluminum Hydroxide by X-ray fluorescence spectrometric method ICS 77.120.10 H30 People's Republic of China Nonferrous Metals Industry Standard X-ray fluorescence spectrometry Posted 2009-12-04 2010-06-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard by the National Standardization Technical Committee of non-ferrous metals and centralized. Appendix A of this standard is an informative annex. This standard by the Aluminum Corporation of China Guangxi Branch is responsible for drafting. Participated in the drafting of this standard. Aluminum Corporation of China Research Institute of Zhengzhou, Luoyang Xiangjiang Wanji Aluminum Co., Ltd., China Aluminum Ltd. Henan Branch. The main drafters of this standard. Qin Wenzhong, Deng Wenjun, Yang Yun screen, the more Liang Bin, where unicorn, Zhang Aifen, Mahui Xia, Jiang Wei, Tang Fei, Sun Hongbin. X-ray fluorescence spectrometry

1 Scope

This standard specifies the aluminum hydroxide SiO2, Fe2O3, Na2O content determination. This standard applies to aluminum hydroxide SiO2, Fe2O3, Na2O content was measured, the measurement range shown in Table 1. Table 1 Component measuring range (mass fraction) /% SiO2 0.005 ~ 0.08 Fe2O3 0.004 ~ 0.07 Na2O 0.20 ~ 0.80

2 principle of the method

Mixing the molten sample flux anhydrous lithium tetraborate and lithium metaborate, plus a small amount of bromide (or iodide) as a release agent. In the fusion machine Melted at a temperature of 1100 ℃, after cooling made of glass samples, measured by X-ray fluorescence spectrometer.

3 Reagents

3.1 Flux. anhydrous lithium tetraborate and lithium metaborate mixed flux, pure class distinctions. Flux contains some water, one of the following two methods should be adopted Compensate. 3.1.1 Burning 2h at 700 ℃, cooling backup in the dryer; 3.1.2 per kg sufficiently mixed flux to take 2 parts, according to a predetermined melting temperature of the molten 10min, a predetermined melt melting time Financial, loss on ignition to take greater amount of flux calibration. Flux should be sealed, weekly or once the determination of loss on ignition per kilogram. LOI L Expressed as a percentage, according to equation (1) calculate the correction factor F, mixed melt dosage dose = F × 2 is not pillow melting. F = 100100-L (1) 3.2 release agent. Ammonium bromide solution (250g/L).

4 Equipment

Platinum 4.1 - crucible (95% Pt + 5% Au). Platinum 4.2 - metal mold (95% Pt + 5% Au). Bottom mold material thickness of about 1mm, its deformation. NOTE. melting and casting mold sample containers can be combined. If the sample in the crucible directly after melt molding, the bottom surface of the inner wall of the crucible is required smooth. Recommended Specifications. The upper end of an inner diameter of 45mm, an inner diameter of the lower end of 33mm, high 25mm. 4.3 fusion machine Automatic flame fusion machine or high-frequency inductors fusion machine. If other types of prototype melting temperature not lower than 1100 ℃, and temperature controlled. 4.4 wavelength dispersive X-ray fluorescence spectrometer. end window rhodium anode X-ray tube.

5 Sample

Sample Preparation. The sample was pulverized aluminum hydroxide, all through a pore size of 125μm sieve. Drying in an oven at 105 ℃ ± 5 ℃ in 1h, take Placed in the dryer to cool to room temperature. ......

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