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Database: 189759 (19 Oct 2025)
GB/T 223.49-1994 English PDF
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GB/T 223.49-1994
: Methods for chemical analysis of iron, steel and alloy. Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare earth content
GB/T 223.49: Evolution and historical versions
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GB/T 223.49-1994
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Methods for chemical analysis of iron, steel and alloy. Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare earth content
GB/T 223.49-1994
GB 223.49-1985
English
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Methods for chemical analysis of iron, steel and alloy--The extraction separation-chlorophosphonazo mA photometric method for the determination of rare earth elements
Obsolete
GB 223.49-1985
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Basic data
Standard ID
GB/T 223.49-1994 (GB/T223.49-1994)
Description (Translated English)
Methods for chemical analysis of iron, steel and alloy. Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare tarth content
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
H11
Classification of International Standard
77.08
Word Count Estimation
5,562
Date of Issue
9/26/1994
Date of Implementation
6/1/1995
Older Standard (superseded by this standard)
GB 223.49-1985
Issuing agency(ies)
State Bureau of Technical Supervision
Summary
This standard specifies the PMBP-benzene extraction separation - Chlorophosphonazo mA Determination of total rare earths. This standard applies to carbon steel, alloy steel, high temperature alloys and precision determination of total rare earth alloys. Measurement range: 0. 0010% to 0. 20%.