GB/T 7730.3-1997 English PDF

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GB/T 7730.3-1997: Methods for chemical analysis of ferromanganese. The determination of phosphorus content
Status: Obsolete

GB/T 7730.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7730.3-1997	319	Add to Cart	3 days	Methods for chemical analysis of ferromanganese. The determination of phosphorus content	Obsolete
GB/T 7730.3-1987	RFQ	ASK	3 days	Methods for chemical analysis of ferromanganese and blast furnace ferromanganese--The alkalimetric method for the determination of phosphorus content	Obsolete

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Basic data

Standard ID: GB/T 7730.3-1997 (GB/T7730.3-1997)
Description (Translated English): Methods for chemical analysis of ferromanganese. The determination of phosphorus content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H11
Classification of International Standard: 77.1
Word Count Estimation: 8,873
Date of Issue: 11/11/1997
Date of Implementation: 5/1/1998
Older Standard (superseded by this standard): GB 7730.3-1987; GB 7730.4-1987
Adopted Standard: JIS G1311-1987, NEQ; ASTM E31-1989, NEQ
Regulation (derived from): Announcement of Newly Approved National Standards No. 8, 2008 (No. 121 overall)
Issuing agency(ies): State Bureau of Technical Supervision
Summary: This Standard is applicable to carbon ferromanganese, medium carbon ferromanganese, low carbon ferromanganese and blast furnace ferromanganese phosphorus contents. This Standard specifies the following two method for determining the amount of phosphorus. Methods I: Molybdenum blue spectrophotometric measurement range: 0. 050% ~ 0. 450%. Method II: Determination of phosphorus content titration range: 0. 080% ~ 0. 650.

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