GB/T 5239-2015 English PDF

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GB/T 5239-2015: Praseodymium oxide
Status: Valid

GB/T 5239: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5239-2015	129	Add to Cart	3 days	Praseodymium oxide	Valid
GB/T 5239-2006	239	Add to Cart	3 days	Praseodymium oxide	Obsolete
GB/T 5239-1993	199	Add to Cart	2 days	Praseodynium oxide	Obsolete

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Basic data

Standard ID: GB/T 5239-2015 (GB/T5239-2015)
Description (Translated English): Praseodymium oxide
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H65
Classification of International Standard: 77.120.99
Word Count Estimation: 6,695
Date of Issue: 2015-09-11
Date of Implementation: 2016-04-01
Older Standard (superseded by this standard): GB/T 5239-2006
Quoted Standard: GB/T 8170; GB/T 12690.1; GB/T 12690.2; GB/T 12690.3; GB/T 12690.4; GB/T 12690.5; GB/T 12690.6; GB/T 12690.7; GB/T 12690.8; GB/T 12690.9; GB/T 12690.10; GB/T 12690.11; GB/T 12690.12; GB/T 12690.13; GB/T 12690.14; GB/T 12690.15; GB/T 12690.16; GB/T 12690.17; GB/T 12690.29; GB/T 14635; GB/T 17803; GB/T 18115.3
Regulation (derived from): National Standard Announcement 2015 No.25
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 requirements for praseodymium oxide products, test methods, inspection rules and signs, packaging, transportation, storage and quality certificate. This Standard applies to chemical method was praseodymium oxide, praseodymium for production of metal, glass, ceramic additives, rare earth permanent magnet alloy used.

GB/T 5239-2015: Praseodymium 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.
(Praseodymium oxide) ICS 77.120.99 H65 National Standards of People's Republic of China Replacing GB/T 5239-2006 Praseodymium oxide Issued on. 2015-09-11 2016-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 5239-2006 "praseodymium oxide." This compared with the standard GB/T 5239-2006 "praseodymium", mainly technical changes are as follows. --- Adds character designation (see Chapter 3); --- Added "Categories" (see 3.1); --- Remove the grade purity of not less than 96% (see Table 1, 2006 edition); --- Increasing the representation of brands and characters grades purity not less than 99.99% and 99.95%, the rare earth impurities assessment index points Do not use "component" and "Closing amount" means (see Table 1); --- Chemical composition table adds Na2O, Al2O3, SO2-4 and the main amount of rare earth elements, water, other rare earth impurities and other non-significant amount Assessment indicators of rare earth impurities, and related indicators made a new regulation (see Table 1). This standard by the National Standardization Technical Committee of rare earth (SAC/TC229) and focal points. This standard drafting of the main unit. Hunan Institute of rare earth materials, Qiandong Rare Earth Group Co., Ltd. The main drafters of this standard. Liu Rongli, Wang Zhijian, easy teacher, Liu Yuhui, Su Zhengfu, Nam Hung Yao, Xie Jianwei, Wang Shuying. This standard replaces the standards previously issued as follows. --- GB/T 5239-1985, GB/T 5239-1993, GB/T 5239-2006. Praseodymium oxide

1 Scope

This standard specifies requirements for praseodymium oxide products, test methods, inspection rules and signs, packaging, transportation, storage and quality certificate. This standard applies to chemical method was praseodymium oxide, praseodymium for production of metal, glass, ceramic additives, rare earth permanent magnet alloy used.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment 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 GB/T 17803 grades representation of rare earth products GB/T 18115.3 rare earth metals and oxides of rare earth impurities in chemical analysis methods of lanthanum, cerium, neodymium, samarium, europium, gadolinium, terbium, Dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium content

3 Requirements

3.1 Categories Product by chemical composition into Pr6O11-4N, Pr6O11-3N5, Pr6O11-3N, Pr6O11-2N5, Pr6O11-2N five brands, products Grades representation shall comply with GB/T 17803 of. 3.2 Chemical composition Chemical composition of the product shall comply with the provisions in Table 1. If you have special requirements of the demand side, both supply and demand can be a separate agreement. Table 1 Grades Character grade Pr6O11-4N Pr6O11-3N5 Pr6O11-3N Pr6O11-2N5 Pr6O11-2N Corresponding to the original digital brands 031 040 031 035 031 030 031 025 031 020 Chemistry ingredient (quality fraction) REO, not less than 99.0 99.0 99.0 99.0 99.0 Pr6O11/REO, not less than 99.99 99.95 99.9 99.5 99.0 Pr6O11 Balance Balance Balance Balance Balance La2O3 0.001 0.002 0.010 0.05 0.1 CeO2 0.002 0.010 0.030 0.05 0.1 Nd2O3 0.004 0.030 0.040 0.35 0.5 Sm2O3 0.001 0.005 0.010 0.03 Y2O3 0.001 0.002 0.005 0.01 Other rare earths Total impurities 0.001 0.001 0.005 0.01 0.3 ......

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