GB/T 16661-2018Cerium carbonate (English PDF)
碳酸铈
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Recommended
Issue date
June 7, 2018
Implementation date
March 1, 2019
Scope
GB/T 16661-2018 is the English-translated version of 碳酸铈.
GB/T 16661-2018 is the Chinese standard "Cerium carbonate". Its scope clause reads: This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certificates of barium carbonate.
This standard is applicable to strontium carbonate obtained by chemical method, mainly used for polishing powder, rare earth oxygen storage material for automobile exhaust gas purification catalyst, engineering plastic Material pigments, glass, ceramics, electronic abrasive materials, etc. Its clauses include requirements.
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Document preview — GB/T 16661-2018
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 65
- Replacing
- GB/T 16661-2008
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- 1 Scope
- 2 Normative references
- 3 requirements
- 3.1 Product brand
- 3.2 Chemical composition
1 Scope
This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certificates of barium carbonate.
This standard is applicable to strontium carbonate obtained by chemical method, mainly used for polishing powder, rare earth oxygen storage material for automobile exhaust gas purification catalyst, engineering plastic
Material pigments, glass, ceramics, electronic abrasive materials, etc.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 12690.7 Determination of non-rare rare earth impurities in rare earth metals and their oxides - Determination of silicon content
Degree method
GB/T 14635 Chemical analysis of rare earth metals and their compounds - Determination of total
GB/T 16484 (all parts) Chemical analysis method of rare earth chloride and light rare earth carbonate
GB/T 17803 Rare Earth Product Grade Representation Method
3 requirements
3.1 Product brand
The product is divided into chemical components. Ce2(CO3)3·nH2O-4N5, Ce2(CO3)3·nH2O-4N, Ce2(CO3)3·nH2O-3N5,
Ce2(CO3)3·nH2O-3N, Ce2(CO3)3·nH2O-2N, five grades, the product designation method should conform to GB/T 17803
Provisions.
3.2 Chemical composition
The chemical composition of the product shall comply with the requirements of Table 1. If there are special requirements, the supplier and the buyer may negotiate separately.
GB/T 16479 | GB/T 16476 | GB/T 13560 | GB/T 47010 | GB/T 30076 | […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
- GB/T 12690.7Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 7: Determination of silicon content
- GB/T 14635Rare earth metals and their compounds - Determination of total rare earth content
- GB/T 17803Designation system for rare earth products
- GB/T 18115.2Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 2: Determination of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yt
GB/T 16484
Similar standards
Editions of GB/T 16661
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 16661-2018 | Cerium carbonate | second revision | Current |
| GB/T 16661-2008 | Cerium carbonate | first revision | Superseded |
| GB/T 16661-1996 | Cerium carbonate | first issue | Superseded |
This page sells the current edition, GB/T 16661-2018. Earlier editions are listed for reference only.
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Related Standards
GB/T 12690.7-2021 — Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 7: Determination of silicon content
GB/T 14635-2020 — Rare earth metals and their compounds - Determination of total rare earth content
GB/T 16484.1-2009 — Chemical analysis methods for rare earth chloride and light rare earth carbonate - Part 1: Determination of the cerium oxide content - Ammonium ferrous sulfate titrimetry
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