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YS/T 976-2014 English PDF

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YS/T 976-2014: Determination of α-alumina content in calcined alumina by X-ray diffraction
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Basic data

Standard ID YS/T 976-2014 (YS/T976-2014)
Description (Translated English) Determination of ��-alumina content in calcined alumina by X-ray diffraction
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H21
Classification of International Standard 77.120.10
Word Count Estimation 6,690
Date of Issue 10/14/2014
Date of Implementation 4/1/2015
Regulation (derived from) People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180)
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This Standard specifies the method for determining the calcined ��-alumina content of ��-Al2O3 by X- ray diffraction. This Standard applies to the determination calcined ��-alumina in ��-Al2O3 content. Measured in the range of 50% to 100%.

YS/T 976-2014: Determination of α-alumina content in calcined alumina by X-ray diffraction

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Determination of α-alumina content in calcined alumina by X-ray diffraction ICS 77.120.10 H21 People's Republic of China Nonferrous Metals Industry Standard Determination of calcined α-alumina content of the α-Al2O3 X- ray diffraction Issued on. 2014-10-14 2015-04-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. Aluminum Corporation of China Shandong Branch. Participated in the drafting of this standard. Aluminum Corporation of China Zhengzhou Research Institute, Aluminum Corporation of China Henan Branch. The main drafters. Zhang Shugui, Han Gang, all red Tao. Determination of calcined α-alumina content of the α-Al2O3 X- ray diffraction

1 Scope

This standard specifies the method for determination of calcined α-alumina in the α-Al2O3 content by X- ray diffraction. This standard applies to the determination of α-type calcined alumina α-Al2O3 content. Determination of the range 50% to 100%.

2 principle of the method

At the same X- ray diffraction conditions were measured in a reference sample to be tested like α-Al2O3 (012) and (116) crystal face diffraction plot Sub-net intensity, determined the percentage of the test sample in α-Al2O3 using external standard direct analysis.

3 Instrument

3.1 agate mortar. 3.2 high-temperature furnace. maximum use temperature 1600 ℃. 3.3 X- ray diffractometer.

4 Reference Sample Preparation

The high purity alumina (Al2O3 content > 99.99%) powder placed corundum crucible at 1450 ℃ ± 10 ℃ burning 4h, regarded as containing α-Al2O3100%.

5 measurement conditions

5.1 Cukα radiation. 5.2 Scanning speed. 2θ = 0.25 °/min. 5.3 Step-value width. 0.002 °. 5.4 divergence slit (DS). 1 °. 5.5 Scattering slit (SS). 1 °. 5.6 receiving slit (RS). 0.3mm. 5.7 excitation power. appropriate.

6 measuring step

6.1 swab moistened with ethanol will agate mortar scrubbed clean, dry spare. 6.2 in an agate mortar, respectively, compared to the reference sample and the test sample is ground to 5μm or less.