GB/T 12690.13-2003 English PDF

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GB/T 12690.13-2003: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides -- Determination of molybdenum and tungsten content -- Inductively couple plasma atomic emission spectrographic method and inductively coupled plasma mass spectr
Status: Valid

GB/T 12690.13: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12690.13-2003	209	Add to Cart	3 days	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides -- Determination of molybdenum and tungsten content -- Inductively couple plasma atomic emission spectrographic method and inductively coupled plasma mass spectr	Valid
GB/T 12690.13-1990	199	Add to Cart	2 days	Neodymium and samarium--Determination of carbon content--High frequency--Infrared absorption method	Obsolete

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GB/T 11064.9   GB/T 11064.2   GB/T 13747.5   GB/T 12690.20   GB/T 12690.21   GB/T 12690.12   

Basic data

Standard ID: GB/T 12690.13-2003 (GB/T12690.13-2003)
Description (Translated English): Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides-Determination of molybdenum and tungsten content-Inductively couples plasma atomic emission spectrographic method and inductively coupled plasma mass spectrum
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H14;H65
Classification of International Standard: 77.120.99
Word Count Estimation: 8,893
Date of Issue: 2003-11-18
Date of Implementation: 2004-06-01
Regulation (derived from): Chinese national standard approved by the announcement in 2004 No. 1 (No. 63 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary: This standard specifies: lanthanum metal, metal cerium, praseodymium, neodymium metal, metal samarium, europium metal, metal gadolinium, terbium, dysprosium, yttrium metal molybdenum, tungsten content determination. This standard applies to: metal lanthanum, cerium metal, metal praseodymium metal neodymium, samarium, europium metal, metal gadolinium, terbium, dysprosium, yttrium metal molybdenum, tungsten content determination. Measuring range (mass fraction): 0. 010% to 0. 50% molybdenum, tungsten 0. 010% to 0. 50%. Methods, Fan, This method provides molybdenum, tungsten content of the rare earth metals determination. This standard applies to: rare earth metals molybdenum, tungsten content determined. Measurement Range (wt, : 0. 0010% to 0. 10%.

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