GB/T 18115.8-2006Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Terbium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium contents (English PDF)
稀土金属及其氧化物中稀土杂质化学分析方法 铽中镧、铈、镨、钕、钐、铕、钆、镝、钬、铒、铥、镱、镥和钇量的测定
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Level / Type
National · Recommended
Issue date
April 13, 2006
Implementation date
October 1, 2006
Scope
GB/T 18115.8-2006 is the English-translated version of 稀土金属及其氧化物中稀土杂质化学分析方法 铽中镧、铈、镨、钕、钐、铕、钆、镝、钬、铒、铥、镱、镥和钇量的测定.
GB/T 18115.8-2006 is the Chinese national standard on chemical analysis methods of rare earth impurities in rare earth metals and their oxides terbium-determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium contents, in the field of metallurgy.
The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up — which in practice is how most foreign buyers meet it.
It was issued on 13 April 2006 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 October 2006.
Classification: ICS 77.120.99, CCS H14. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there.
The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.
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Document preview — GB/T 18115.8-2006
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H14
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Contents
- Foreword
- 1 Scope
- 2 Principle of the method
- 3 Reagents
- 4 Apparatus
- 5 Test specimens
- 6 Analytical procedure
- 7 Expression of the analytical results
- 8 Precision
- 9 Quality assurance and control
- 10 Scope
- 11 Principle of the method
- 12 Reagents and materials
- 13 Apparatus
- 14 Test specimens
- 15 Analytical procedure
- 16 Calculation of the analytical results
- 17 Precision
- 18 Quality assurance and control
3 Reagents
4 Apparatus
5 Test specimens
6 Analytical procedure
7 Expression of the analytical results
8 Precision
9 Quality assurance and control
10 Scope
11 Principle of the method
12 Reagents and materials
13 Apparatus
14 Test specimens
15 Analytical procedure
16 Calculation of the analytical results
17 Precision
18 Quality assurance and control
Foreword
This document was issued on 13 April 2006 by the State Administration for Market Regulation and the Standardization Administration of the People's Republic of China, and has been in force since 1 October 2006.
It replaces GB/T 18115.7-2000.
Classification: ICS 77.120.99, CCS H14.
About this edition
GB/T 18115.8-2006 is the current edition. It was issued on 13 April 2006 and has been in force since 1 October 2006, replacing GB/T 18115.7-2000.
GB/T 18115.7-2000 has been superseded: a specification that still cites it is citing a withdrawn edition.
The interval between issue and effect is the transition period. It exists so that producers, laboratories and buyers can requalify products, revise procedures and use up documentation before the new text becomes the one that applies. The date on this page is the official one from the record of the Standardization Administration.
Classification and status
GB/T 18115.8-2006 is classified under ICS 77.120.99, in the field of metallurgy. ICS is the International Classification for Standards, the same scheme used by ISO and by the national bodies of most countries, which is what allows a Chinese standard to be placed beside its foreign counterparts on subject rather than on number.
Its Chinese Standard Classification code is CCS H14. CCS is the domestic scheme, a letter for the sector and two digits for the subject within it, and it is the code by which the standard is filed and searched in China.
The GB/T prefix marks a recommended national standard. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it. In practice that covers most of the cases in which it will be read — a purchase specification, an inspection agreement or a certification scheme.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 10 pages — is available in the English PDF.
Referenced standards
Cited by
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Editions of GB/T 18115.8
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 18115.8-2006 | Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Terbium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium contents | current edition | Current |
| GB/T 18115.7-2000 | Terbium oxide-Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, ytterbium oxide, lutetium oxide | merged into this edition | Superseded |
This page sells the current edition, GB/T 18115.8-2006. Earlier editions are listed for reference only.
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Related Standards
GB/T 18115.1-2020 — Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 1:Determination of cerium,praseodymium,neodymium,samarium,europium,gadolinium,terbium,dysprosium,holmium,erbium,thulium,ytterbium,lutetium and yttrium contents in lanthanum metal and oxide
GB/T 18115.10-2006 — Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Holmium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, erbium, thulium, ytterbium, lutetium and yttrium contents
GB/T 18115.11-2006 — Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Erbium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, thulium, ytterbium, lutetium and yttrium contents
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