GB/T 23591-2009 English PDF

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GB/T 23591-2009: Lanthanum-cerium-terbium oxide
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23591-2009	189	Add to Cart	3 days	Lanthanum-cerium-terbium oxide	Valid

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Basic data

Standard ID: GB/T 23591-2009 (GB/T23591-2009)
Description (Translated English): Lanthanum-cerium-terbium oxide
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H65
Classification of International Standard: 77.120.99
Word Count Estimation: 8,833
Date of Issue: 2009-04-23
Date of Implementation: 2010-02-01
Quoted Standard: GB/T 8170; GB/T 12690; GB/T 14635; GB/T 20170.1-2006
Regulation (derived from): National Standard Approval Announcement 2009 No.5 (Total No.145)
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 requirements of lanthanum cerium terbium oxide, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to the chemical method were lanthanum cerium terbium oxide, for trichromatic fluorescent lamps produce materials used.

GB/T 23591-2009: Lanthanum-cerium-terbium oxide

---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.
Lanthanum-cerium-terbium oxide ICS 77.120.99 H65 National Standards of People's Republic of China Lanthanum cerium terbium oxide Posted 2009-04-23 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard by the National Standardization Technical Committee rare and centralized. This standard by the Yixing Willy into the new Rare Earth Co., Ltd. is responsible for drafting. Participated in the drafting of this standard by the Guangdong Zhujiang Rare Earth Co., Ltd., Jiangyin Jiahua Advanced Material Resources Co., Ltd. The main drafters of this standard. Yu Zhichun, Zou Bin, Jin Yanhua, Xie Jianwei. Lanthanum cerium terbium oxide

1 Scope

This standard specifies the lanthanum cerium terbium oxide requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to chemical method was lanthanum cerium terbium oxide, for the production of lamps trichromatic fluorescent materials used.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 8170 numerical rounding rules GB/T 12690 (all parts), oxides of rare earth metals and their chemical impurity analysis of Central Africa Determination of GB/T 14635 method for chemical analysis of rare earth metals and rare earth compound total Determination of GB/T 20170.1-2006 physical properties of rare earth metals and rare earth compounds tested compound particle size distribution

3 Requirements

3.1 Chemical composition Chemical composition of the product shall comply with the requirements in Table 1. For parties of products with special requirements, supply and demand sides can be negotiated. Table 1 Product No. 011 160 011 158 011 154 011 141 chemical composition (Mass fraction) / REO, not less than La2O3/REO CeO2/REO Tb4O7/REO Impurity content, no greater than Rare earth impurities REO Non-rare earth impurities Pr6O11 Gd2O3 Dy2O3 Y2O3 Fe2O3 SiO2 CaO CuO PbO NiO Cl- Loss on ignition, not more than 99.0 99.0 99.0 99.0 60 ± 1 58 ± 2 54 ± 1 41 ± 1 24 ± 1 27 ± 1 31 ± 1 44 ± 1 16 ± 0.5 15 ± 0.5 15 ± 0.5 15 ± 0.5 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.002 0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.0005 0.0005 0.0005 0.0005 0.005 0.005 0.005 0.005 0.003 0.003 0.003 0.003 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.02 0.02 0.02 0.02 1.0 1.0 1.0 1.0 ......

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