GB/T 12690.7-2003 in English

SUPERSEDED

Neodymium and neodymium oxide-Determination of lanthanum oxide, cerium oxide, praseodymium oxide, s

Issued on:2004-06-01
Implemented on:2004-06-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $100.00
$97.00

Standard No:	GB/T 12690.7-2003
Document status:	SUPERSEDED
Superseded by:	GB/T 12690.7-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7: Determination of silicon content
Superseded on:	2022-05-01
Title in English:	Neodymium and neodymium oxide-Determination of lanthanum oxide, cerium oxide, praseodymium oxide, s
Title in Chinese:	稀土金属及其氧化物中非稀土杂质化学分析方法硅量的测定钼蓝分光光度法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2004-06-01
Implemented on:	2004-06-01
Superseding:	GB 11074.5-1989 Samarium oxide--Determination of acid soluble silicon content--Molybdenum blue spectrophotometric method GB/T 12690.22-1990 Rare-earth metals and their oxides--Determination of silicon oxide--Molybdenum blue spectrophotometric method GB/T 12690.23-1990 Rare-earth metals and their oxides--Determination of acid soluble silicon oxide--Molybdenum blue spectrophotometric method GB/T 8762.3-1988 Yttrium oxide of phosphor grade--Determination of acid soluble silicon dioxide--Molybdenum blue photometric method
ICS Classification:	77.120.99-Other non-ferrous metals and their alloys
Chinese Classification:	H14-Rare metals and their alloys analysis method
Professional Classification:	GB-National Standard
Related Keywords:	lanthanum oxide cerium oxide praseodymium oxide neodymium oxide-determination oxide
Related Topics:	rare earth rare earth metal oxides Rare Earth Standard Rare Earth Standard rare earth oxide Soil Chemical Analysis Rare Earth Spectral Analysis Impurity standardization method Rare Earth Spectral Items Chemical analysis method for non-rare earth impurities in rare earth metals and their oxides Analysis of Molybdenum in Soil rare earth capacity method optical impurities Impurity standardization method Spectrophotometer wavelength Metal Oxidation Analysis Rare earth+ Rare earth impurities Hybrid silicon Hybrid silicon Rare Earth Analyzer central africa Rare earth colored quality analysis of its Metal oxide content Rare earth impurities Metal oxide content Rare Earth Optoelectronics Spectrophotometer wavelength soil metal oxides soil metal oxides soil metal oxides Rare Earth Optoelectronics Foreign rare earth analysis methods rare earth oxide rare earth quality Substance Metal Analysis Rare Earth UV Spectrophotometry Analysis of plutonium and its impurities GBT12690.7 GB/T 12690.7-1990 GB/T 12690.7-2003 GB/T 12690.7-2021 Rare earth metals and their oxides Primary Trace Rare Earth Analysis Application of Spectral Analysis Technology in Detection of Rare Earth Elements Impurity Limit Quantitative Method Chinese Pharmacopoeia Analytical Method Verification of Impurity Limits Detection of bulk metal impurities in silicon wafers Rare earth titration analysis method Determination of Rare Earth International Lanyi Biochemical Analysis Method Determination method of total rare earth content in tea Rare earth extraction rate analysis method Trace Rare Earth Analysis Silica quality Spectrophotometry and its standard curve Colorimetric dilution method and result analysis

本部分规定了稀土氧化物中二氧化硅含量的测定方法。本部分规定了稀土金属及其氧化物中酸溶硅含量的测定方法。本部分适用于稀土金属及其氧化物中硅含量的测定。测定范围（质量分数）：0.0010%～0.20%。

Scope

This part specifies the method for the determination of silica content in rare earth oxides. This part specifies the method for the determination of acid-soluble silicon content in rare earth metals and their oxides. This section applies to the determination of silicon content in rare earth metals and their oxides. Measuring range (mass fraction): 0.0010% to 0.20%.

More samples: GB 18306-2015 JGJ 94-2008 JJG 21-2008

Sample only — not a preview of GB/T 12690.7-2003

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