GB/T 4699.2-2008 in English

SUPERSEDED

Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method

Issued on:2008-05-13
Implemented on:2008-11-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $150.00
$146.00

Standard No:	GB/T 4699.2-2008
Document status:	SUPERSEDED
Superseded by:	GB/T 4699.2-2025 Ferrochromium，silicochromium，nitrogen-bearing ferrochromium and high nitrogen ferrochromium—Determination of chromium content—Ammonium persulfate oxidation titrimetric method and potentiometric titration method
Superseded on:	2026-02-01
Title in English:	Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method
Title in Chinese:	铬铁和硅铬合金铬含量的测定过硫酸铵氧化滴定法和电位滴定法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2008-05-13
Implemented on:	2008-11-01
Superseding:	GB 10323-1988 Methods for chemical analysis of ferrochromium and silicochromium-The potentiometric titration method for the determination of chromium content GB/T 4699.2-1984 Methods for chemical analysis of silicochromium--The alkaline fusion-ammonium persulfate oxidation volumetric method for the determination of chromium content GB/T 5687.1-1985 Methods for chemical analysis of ferro-chromium--The ammonium persulfate oxidation volumetric method for the determination of chromium content
ICS Classification:	77.100-Ferroalloys
Chinese Classification:	H11-Steel and iron alloy analysis method
Professional Classification:	GB-National Standard
Related Keywords:	ammonium persulfate oxidation titration method potentiometric titration method potentiometric titration method scopewarning chromium content titrimetric method
Related Topics:	titration potential potentiometric titration potentiometric titration Silicon chrome potentiometric titration Silicon chrome Analysis of chromic acid content Chromium content standard titration d isothermal titration What does a potentiometric titrator measure? GB4699.2-2008 titration chrome alloy Titration of total chromium Ammonium nitrate content titration method potentiometric titration breakthrough overpotential and Determination of ammonium nitrate by potentiometric titration chromic acid conductive Determination of ammonium nitrate content by potentiometric titration Oxidation Potential of Ammonium Persulfate Chromium content Determination of Chromium Oxide in Chromium Ore by Microwave Dissolution-Automatic Potentiometric Titration isothermal titration Determination of silicon dioxide content in water by titration method potentiometric and volumetric titration Ammonium Titration Test Method titration potential Primary titration and back titration Titration and Total acid content by potentiometric titration Titrate half a drop pendant drop method Titration process Titrated and Titrated pendant drop method, sessile drop method Cobalt Sulfate Titration Method titration sulfur dioxide Determination and titration of ammonium content in water Cobalt Sulfate Titration Method Chrome silicon titration sulfur dioxide Ammonium content determination titration Chromium Chromium Sessile drop method Titration angle gb/t4699.2 Determination of Ammonium by Titration Iron Oxidation Peak Potential Pre-titration process sessile drop method Chromium titration peroxide titration Determination method of ammonium persulfate Potentiometric titration of total acid Titration Titration ammonium persulfate potential oxidation overpotential Titrate half a drop titer potentiometric titration Sulfur trioxide titration peroxychromic acid decomposition Silicon chromium alloy Chromium content and electronic titration pendant drop and sessile drop Chromium iron silicon chromium Oxygen titration ammonium titration pendant drop method Sessile double drop method GB/T 4699.2 GB/T 4699.2-1984 GB/T 4699.2-2008 Chromium ferrochromium, silicon chromium alloy chemical analysis method Potentiometric titration method for determination of chromium content Determination method of ammonium persulfate content titration Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration chromium Potentiometric titrator titration of amino acid content Mettler potentiometric titrator for determination of calcium oxide Determination method for ammonium sulfate content titration Determination of ferrous iron content by perchloric acid potentiometric titration Potentiometric titration test for ferric iron National chromium content Sulfur trioxide titration method detection Composition on calibration method of ammonium thiocyanate titrant Chromium sulfate main content detection method Isoleucine potentiometric titration method Amino acid determination national standard potentiometric titration method What are the methods for measuring ammonium persulfate content? Potentiometric titrator trial run passed What are the titration methods of potentiometric titration? Method for measuring phenol sulfonic acid content using potentiometric titrator What are the methods for measuring the quality of chromium-containing coatings? Determination of ammonium radical by titration method Sulfur dioxide potentiometric titration method Salicylic acid content determination titration method Lithium sulfate detection method potentiometric titration method Histidine potentiometric titration detection method Is the alumina titration method dynamic titration? Chromium standard potential Method for measuring sulfur dioxide by constant potential method Oxalic acid titration Chromium salt contains chromium iso 铬滴定 Potentiometric titration execution Chromium sulfate detection method Titration method using ammonium vitriol indicator method

本部分代替ＧＢ／Ｔ５６８７．１—１９８５、ＧＢ／Ｔ１０３２３—１９８８和ＧＢ／Ｔ４６９９．２—１９８４。本部分规定了过硫酸铵氧化滴定法和电位滴定法测定铬铁与硅铬合金中的铬含量。
本部分适用于铬铁与硅铬合金中铬含量的测定。测定范围（质量分数）：２５．００％～８０．００％本部分与ＧＢ／Ｔ５６８７．１—１９８５、ＧＢ／Ｔ１０３２３—１９８８和ＧＢ／Ｔ４６９９．２—１９８４比较，主要变化如下：
———方法适用范围扩展到铬铁和硅铬合金；
———测定范围调整为２５．００％～８０．００％；
———过氧化钠的用量由７ｇ～１１ｇ调整为８ｇ；
———硫酸（１＋１）的用量由４０ｍＬ～６０ｍＬ调整为５０ｍＬ本部分是对ＧＢ／Ｔ５６８７．１—１９８５《铬铁化学分析方法　过硫酸铵容量法测定铬量》、ＧＢ／Ｔ１０３２３—１９８８《铬铁、硅铬合金化学分析方法　电位滴定法测定铬量》和ＧＢ／Ｔ４６９９．２—１９８４《硅铬合金化学分析方法　碱熔过硫酸铵氧化容量法测定铬量》的整合修订。

Scope

WARNING: Personnel applying this standard should have practical experience in formal laboratory work. This section does not address all possible security issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part specifies the ammonium persulfate oxidation titration method and potentiometric titration method for the determination of chromium content in ferrochromium and silicon chromium alloys. This section applies to the determination of chromium content in ferrochromium and silicon chromium alloys. Measuring range (mass fraction): 25.00% to 80.00%

More samples: QC/T 942-2021 JJG 21-2008 DL/T 5154-2012

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