GB/T 4155-2012 English PDF

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GB/T 4155-2012: Cerium oxide
Status: Valid

GB/T 4155: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4155-2012	118	Add to Cart	1 days	Cerium oxide	Valid
GB/T 4155-2003	199	Add to Cart	2 days	Cerium oxide	Obsolete
GB/T 4155-1992	199	Add to Cart	2 days	Cerium oxide	Obsolete

Similar standards

GB/T 2968   GB/T 13219   GB/T 13560   GB/T 4154   GB/T 4148   GB/T 4153   

Basic data

Standard ID: GB/T 4155-2012 (GB/T4155-2012)
Description (Translated English): Cerium oxide
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H65
Classification of International Standard: 77.120.99
Word Count Estimation: 7,775
Older Standard (superseded by this standard): GB/T 4155-2003
Quoted Standard: GB/T 8170; GB/T 12690; GB/T 14635; GB/T 16484.12; GB/T 17803; GB/T 18115.2; GB/T 20170.1
Adopted Standard: ISO 10770-3-2007, MOD
Regulation (derived from): National Standards Bulletin 2012 No. 28
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 cerium oxide requirements, test methods, inspection rules, packaging, marking, transportation, storage and quality certificate. This standard applies to chemical method were available for production of glass, ceramics, electron

GB/T 4155-2012: Cerium 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.
ICS77.120.99 H65 National Standards of People's Republic of China Replacing GB/T 4155-2003 Ceria Ceriumoxide Issued on. 2013-05-01 2012-11-05 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is in accordance with GB/T 1.1-2009 given rules drafted. This standard replaces GB/T 4155-2003 "cerium oxide." This standard compared with GB/T 4155-2003, the main technical changes are as follows. --- Deleted grades 021 015, 021 018 and its corresponding grade assessment indicators; --- Increased by 021,045 grade, 021,050 grade, grade 021 025 and its corresponding evaluation indicators; --- 021 045 new grades, 021,050 grade, rare earth impurities in its assessment index of "component" means; --- 021,025 new grade rare earth impurities assessment indicators with "Closing amount" means; --- Increased grades 021040A, grades 021040B, grade 021 045 granularity assessment index; --- Increased grade 021 035, 021 030 in grades sulfate assessment indicators; --- Adjusted grades 021040A, grades 021040B, 021,035 grade, 021,030 grade, 021,020 grade non - rare earth impurities test Nuclear targets. This standard by the National Standardization Technical Committee of rare earth (SAC/TC229) centralized. Drafting of this standard. Jiangyin Jiahua Advanced Material Resources Co., Ltd., Inner Mongolia Baotou Steel Rare Earth (Group) Company Limited tech Secretary, Xiamen Topstar New Materials Co., Ltd., Jiangmen City, Guangdong Branch Hang Industrial Co., Ltd. The main drafters of this standard. OF ADMINISTRATIVE Xiao Rui, Xie Jianwei, Wang Jing, Haogao Hui, Wei Lan, Huang Rui sweet. This standard replaces the standards previously issued as follows. --- GB/T 4155-1984, GB/T 4155-1992, GB/T 4155-2003. Ceria

1 Scope

This standard specifies the requirements, test methods, inspection rules, cerium oxide and the packaging, labeling, transportation, storage and quality certificate. This standard applies to chemical method were available for the production of glass, ceramics, electronics, light emitting material and cerium oxide polishing powder used.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this standard. GB/T 8170 rounding off rules and limit values \u200b\u200band expressed determination GB/T 12690 non - rare earth impurities in rare earth metals and their oxides chemical analysis methods GB/T 14635 chemical analysis of rare earth metals and compounds GB/T 16484.12 earth chloride and light rare earth carbonate Chemical analysis methods of measuring the amount of sulfate GB/T 17803 grades representation of rare earth products GB/T 18115.2 earth metals and their oxides of rare earth impurities in chemical analysis methods of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, Dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium content Determination of physical properties of metals and their compounds determination of particle size distribution of the rare earth compound GB/T 20170.1

3 Requirements

3.1 Chemical composition Product chemical composition points and eight grades, chemical composition shall comply with the provisions in Table 1. For special requirements demand side, supply and demand sides can further Consultations. Table 1 Product No. 021050 021045 021040A 021040B 021035 021030 021025 021020 (quality REO, not less than 99.0 99.0 99.0 99.0 99.0 99.0 98.0 98.0 CeO2/REO, not less than 99.999 99.995 99.99 99.99 99.95 99.9 99.5 99.0 ︐Do not REO La2O3 Pr6O11 Nd2O3 Sm2O3 Y2O3 Eu2O3 Gd2O3 Tb4O7 0.00015 0.0001 0.0001 0.0001 0.0001 0.00005 0.00005 0.00005 0.001 0.002 0.002 0.015 0.001 0.002 0.002 0.015 0.0005 0.001 0.001 0.005 0.0005 0.001 0.001 0.005 0.001 0.002 0.002 0.005 the remaining Combined amount 0.001 the remaining Combined amount 0.002 the remaining Combined amount 0.002 the remaining Combined amount 0.005 Combined amount 0.1 Combined amount 0.5 Combined amount ......

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