GB/T 223.25-1994 English Version, GB/T 223.25-1994 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content (English Version)

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GB/T 223.25-1994 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content (English Version)
Standard No.:	GB/T 223.25-1994	Status:	valid remind me the status change Email:
Language:	English	File Format:	PDF
Word Count:	2000 words	Price(USD):	40.0 remind me the price change Email:
Implemented on:	1994-10-1	Delivery:	via email in 1 business day

Standard No.:	GB/T 223.25-1994
English Name:	Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content
Chinese Name:	钢铁及合金化学分析方法丁二酮肟重量法测定镍量
Chinese Classification:	H11 Steel and iron alloy analysis method
Professional Classification:	GB National Standard
Issued by:	AQSIQ
Issued on:	1994-1-17
Implemented on:	1994-10-1
Status:	valid
Superseding:	GB 223.25-1984 Methods for chemical analysis of iron, steel and alloy--The dimethylglyoxime gravimetric method for the determination of nickel content
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	40.0
Delivery:	via email in 1 business day

GB/T 223.25-1994 is referred in:

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GB/T 223.25-1994 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content (English Version)
Standard No.	GB/T 223.25-1994
Status	valid
Language	English
File Format	PDF
Word Count	2000 words
Price(USD)	40.0
Implemented on	1994-10-1
Delivery	via email in 1 business day

Detail of GB/T 223.25-1994

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Introduction of GB/T 223.25-1994

1 Subject Content and Application Scope This standard specifies a dimethylglyoxime gravimetric method for the determination of nickel content. This standard is applicable to the determination of nickel content in carbon steel, alloy steel, high temperature alloy and precision alloy. Determination range: above 2%. 2 Principle Reduction of iron to divalent with sodium sulfite in the ammonium acetate buffer solution. Using tartaric acid as complexing agent, precipitation of nickel and dimethylglyoxime, at 6.0~6.4 pH value, and separation from such elements as iron, cobalt, copper, manganese, chromium, molybdenum, tungsten and vanadium. weighing nickel dimethylglyoxime dried to constant mass at 145 ±5℃. 3 Reagents

Contents of GB/T 223.25-1994

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