GB/T 223.6-1994 English Version, GB/T 223.6-1994 Methods for chemical analysis of iron,steel and alloy The neutralization titrimetric method for the determination of boron content (English Version)

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GB/T 223.6-1994 Methods for chemical analysis of iron,steel and alloy The neutralization titrimetric method for the determination of boron content (English Version)
Standard No.:	GB/T 223.6-1994	Status:	valid remind me the status change Email:
Language:	English	File Format:	PDF
Word Count:	2000 words	Price(USD):	110.0 remind me the price change Email:
Implemented on:	1995-6-1	Delivery:	via email in 1 business day

Standard No.:	GB/T 223.6-1994
English Name:	Methods for chemical analysis of iron,steel and alloy The neutralization titrimetric method for the determination of boron content
Chinese Name:	钢铁及合金化学分析方法中和滴定法测定硼量
Professional Classification:	GB National Standard
Issued by:	AQSIQ
Issued on:	1994-9-26
Implemented on:	1995-6-1
Status:	valid
Superseding:	GB 223.6-1981 钢铁及合金中硼量的测定
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	110.0
Delivery:	via email in 1 business day

GB/T 223.6-1994 is referred in:

* GB 17258-1998 Steel cylinders for the on-board of compressed natural gas as a fuel for vehicles
* GB 19158-2003 Steel cylinders for the storage of compressed natural gas
* GB 19158-2003 Steel cylinders for the storage of compressed natural gas
* JB/T 4385.1-1999 General specifications for open die forgings on hammer
* GB 17258-1998 Steel cylinders for the on-board of compressed natural gas as a fuel for vehicles
* NB/T 47018.5-2011 Technical permission of welding materials for pressure equipment - Part 5: Stainless steel strip electrodes and fluxes for overlay welding
* GB/T 19345-2003 Amorphous and nanocrystalline soft magnetic alloy strips

Standard

GB/T 223.6-1994 Methods for chemical analysis of iron,steel and alloy The neutralization titrimetric method for the determination of boron content (English Version)
Standard No.	GB/T 223.6-1994
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 223.6-1994

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Introduction of GB/T 223.6-1994

1 Subject and Applicability This standard specifies a neutralization titrimetric method for the determination of boron content. This standard is applicable to the determination of the boron content in high-boron stainless steels. Boron determination range: 0.50%~2.00%. 2 Principle Dissolution of the sample with hydrochloric acid. Separation of elements such as ferrum, chromium and nickel. Using mononitrophenol as an indicator, regulation of the solution to acidic. Decarbonation by boiling. Re-regulation of the solution to pH 7. With the presence of mannite, using phenolphthalein as an indicator, titration with sodium hydroxide standard solution. A tungsten content larger than 15 mg and a molybdenum content larger than 15 mg both interfere the determination.

Contents of GB/T 223.6-1994

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