GB/T 223.50-1994 English Version, GB/T 223.50-1994 Methods for chemical analysis of iron, steel and alloy The phenylfuorone-CTMAB direct photometric method for the determination of tin content (English Version)

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GB/T 223.50-1994 Methods for chemical analysis of iron, steel and alloy The phenylfuorone-CTMAB direct photometric method for the determination of tin content (English Version)
Standard No.:	GB/T 223.50-1994	Status:	valid remind me the status change Email:
Target Language:	English	File Format:	PDF
Word Count:	2000 words	Translation Price(USD):	110.0 remind me the price change Email:
Implemented on:	1995-6-1	Delivery:	via email in 1 business day

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Standard No.:	GB/T 223.50-1994
English Name:	Methods for chemical analysis of iron, steel and alloy The phenylfuorone-CTMAB direct photometric method for the determination of tin content
Chinese Name:	钢铁及合金化学分析方法苯基荧光酮-溴化十六烷基三甲基胺直接光度法测定锡量
Professional Classification:	GB National Standard
Source Content Issued by:	AQSIQ
Issued on:	1994-9-26
Implemented on:	1995-6-1
Status:	valid
Superseding:	GB 223.50-1985 钢铁及合金化学分析方法苯芴铜-溴化十六烷基三甲基胺直接光度法测定锡量
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	110.0
Delivery:	via email in 1 business day

GB/T 223.50-1994 is referred in:

Standard

GB/T 223.50-1994 Methods for chemical analysis of iron, steel and alloy The phenylfuorone-CTMAB direct photometric method for the determination of tin content (English Version)
Standard No.	GB/T 223.50-1994
Status	valid
Language	English
File Format	PDF
Word Count	2000 words
Price(USD)	110.0
Implemented on	1995-6-1
Delivery	via email in 1 business day

Detail of GB/T 223.50-1994

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Introduction of GB/T 223.50-1994

1 Subject Content and Application Scope This Standard specifies Phenylfluorone-CTMAB direct photomctric method for determination of tin content. This Standard is applicable to determination of tin in pig iron, carbon steel and low alloyed steel. The tin content range by determination is as: 0.0050%~0.20%. 2 Principle In medium of diluted sulfuric acid, tin (IV) with phenylfluorone and CTMAB forms multiads, showing stable orange red, and measure the absorbance with spectrophotometer at a wave length of 536nm. There is no effect when the content of wolfram, molybdenum and titanium in the developing solution shall respectively be less than 10μg, the content of niobium shall be less than 5μg, and the content of tantalum shall be less than μg.

Contents of GB/T 223.50-1994

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