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GB/T 2526-2020: Gadolinium oxide
Status: Valid GB/T 2526: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 2526-2020 | English | 119 |
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3 days [Need to translate]
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Gadolinium oxide
| Valid |
GB/T 2526-2020
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| GB/T 2526-2008 | English | 239 |
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Gadolinium oxide
| Obsolete |
GB/T 2526-2008
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| GB/T 2526-1996 | English | 199 |
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Gadolinium oxide
| Obsolete |
GB/T 2526-1996
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| GB/T 2526-1990 | English | RFQ |
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Gadolinium oxide
| Obsolete |
GB/T 2526-1990
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PDF similar to GB/T 2526-2020
Basic data | Standard ID | GB/T 2526-2020 (GB/T2526-2020) | | Description (Translated English) | Gadolinium oxide | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H65 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,647 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-10-01 | | Older Standard (superseded by this standard) | GB/T 2526-2008 | | Quoted Standard | GB/T 8170; GB/T 12690.1; GB/T 12690.2; GB/T 12690.3; GB/T 12690.4; GB/T 12690.5; GB/T 12690.6; GB/T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 | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificates of gadolinium oxide. This standard applies to gadolinium oxide prepared by extraction or other methods for the production of fluorescent materials, optical glass, metal sharps, etc. | GB/T 2526-2020: Gadolinium 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.
(Gadolinium Oxide)
ICS 77.120.99
H65
National Standards of People's Republic of China
Replace GB/T 2526-2008
Gadolinium Oxide
Gadoliniumoxide
2020-11-19 released
2021-10-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 2526-2008 "Gadolinium Oxide". Compared with GB/T 2526-2008, the main technical changes except for editorial changes
Change as follows.
---Added character designation (see 3.1 and 3.2);
---Added grades with a purity not less than Gd2O3-5N5 and grades with a purity not less than Gd2O3-2N5 (see 3.2);
---Modified the non-rare earth impurities and non-rare earth impurities iron (Fe2O3), calcium (CaO) and other assessment indicators in the grade Gd2O3-3N5 (see 3.2,
3.1 of the.2008 edition);
---Modified the assessment indicators of non-rare earth impurities iron (Fe2O3), silicon (SiO2), calcium (CaO), etc. in the grade Gd2O3-3N (see 3.2,
3.1 of the.2008 edition);
---Modified the assessment indicators of non-rare earth impurity calcium (CaO) in the grade Gd2O3-4N (see 3.2, 3.1 in the.2008 edition);
---Modified the assessment indicators of non-rare earth impurities silicon (SiO2), nickel (NiO) and aluminum (Al2O3) in the grade Gd2O3-5N (see 3.2,
3.1 of the.2008 edition);
---Added the assessment index and calculation method of the main rare earth element gadolinium (Gd2O3) (see 3.2);
--- Modified the expression of rare earth impurities and deleted the denominator REO (see 3.2, 3.1 in the.2008 edition);
---The burning loss index is modified as the combined amount index of moisture and burning loss (see 3.2, 3.1 in the.2008 edition);
---Added the note that all tests are the state before burning after removing water (see 3.2);
---Revised the analysis method of the total content of rare earth (REO) (see 4.1.1, 4.1 in the.2008 edition);
---The calculation method of the relative purity of the main rare earth elements (Gd2O3/REO) has been added (see 4.1.4);
---Added the requirements for determining the appearance inspection results (see 5.5.2).
This standard was proposed and managed by the National Rare Earth Standardization Technical Committee (SAC/TC229).
Drafting organizations of this standard. Jiangyin Jiahua New Material Resources Co., Ltd., Yixing Xinweilicheng Rare Earth Co., Ltd., Guangdong Zhujiang Rare Earth Co., Ltd.
the company.
The main drafters of this standard. Xiao Rui, Shi Weidong, Xie Jianwei, Jin Yanhua, Zou Bin, Chen Yan, Wang Shouhong, Liang Bin, Yao Nanhong, Chen Yuehua,
Shi Cuiping and Zhang Shaofu.
The previous versions of the standard replaced by this standard are as follows.
---GB/T 2526-1989, GB/T 2526-1996, GB/T 2526-2008.
Gadolinium Oxide
1 Scope
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificates of gadolinium oxide.
This standard applies to gadolinium oxide produced by extraction or other methods for the production of fluorescent materials, optical glass, metal gadolinium, etc.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 8170 Numerical rounding rules and the expression and determination of limit values
GB/T 12690 (all parts) Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides
GB/T 14635 Methods for chemical analysis of rare earth metals and their compounds Determination of total rare earth
GB/T 17803 Rare earth product designation method
GB/T 18115.7 Methods for chemical analysis of rare earth impurities in rare earth metals and their oxides, lanthanum, cerium, praseodymium, neodymium, samarium, europium, terbium, gadolinium
Determination of the amount of dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium
3 Technical requirements
3.1 Product Classification
Products are divided into Gd2O3-5N5, Gd2O3-5N, Gd2O3-4N5, Gd2O3-4N, Gd2O3-3N5, Gd2O3-3N,
There are seven grades of Gd2O3-2N5, and the method of expressing product grades should conform to the regulations of GB/T 17803.
3.2 Chemical composition
The chemical composition of the product should meet the requirements of Table 1.If the buyer has special requirements, the supplier and the buyer can negotiate separately.
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