GB/T 4701.4-2008 English PDF

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GB/T 4701.4-2008: Ferrotitanium -- Determination of manganese content -- Arsenite-salt and sodium-salt titrimetric method and periodate photometric method
Status: Valid

GB/T 4701.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4701.4-2008	189	Add to Cart	3 days	Ferrotitanium -- Determination of manganese content -- Arsenite-salt and sodium-salt titrimetric method and periodate photometric method	Valid
GB/T 4701.4-1984	199	Add to Cart	2 days	Methods for chemical analysis of ferrotitanium--The persulfate-arsenite volumetric method for the determination of manganese content	Obsolete

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Basic data

Standard ID: GB/T 4701.4-2008 (GB/T4701.4-2008)
Description (Translated English): Ferrotitanium -- Determination of manganese content -- Arsenite-salt and sodium-salt titrimetric method and periodate photometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H11
Classification of International Standard: 77.100
Word Count Estimation: 8,890
Date of Issue: 2008-05-13
Date of Implementation: 2008-11-01
Older Standard (superseded by this standard): GB/T 4701.4-1984; GB/T 4701.5-1984
Quoted Standard: GB/T 4010
Regulation (derived from): National Standard Approval Announcement 2008 No.8 (Total No.121)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the arsenite-spectrophotometric determination of nitrite titration and periodate ilmenite content of manganese. This section applies to the determination of manganese content of ilmenite. Which arsenite-nitrite titration range (mass fraction): 1. 00 %-4. 00%, periodate photometric measurement range (mass fraction): 0. 10% to 1. 50 %.

GB/T 4701.4-2008: Ferrotitanium -- Determination of manganese content -- Arsenite-salt and sodium-salt titrimetric method and periodate photometric method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ferrotitanium. Determination of manganese content. Arsenite-salt and sodium-salt titrimetric method and periodate photometric method ICS 77.100 H11 National Standards of People's Republic of China Replacing GB/T 4701.4 ~ 4701.5-1984 Determination of manganese content ilmenite Arsenite - nitrite titration Periodate spectrophotometry Posted 2008-05-13 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This part is GB/T 4701.4-1984 "Methods for chemical analysis of ferrotitanium persulfate - arsenite volumetric method for the determination of manganese content" and "For Determination of the amount of chemical analysis of ferrotitanium periodate" the national standard integration Amendment GB/T 4701.5-1984. This Part replaces GB/T 4701.4-1984 and GB/T 4701.5-1984. This portion of the GB/T 4701.4-1984, GB/T 4701.5-1984 compared, mainly to do with the following modifications. --- Test solution dispensing volume by the 20.00mL modify 10.00mL and 20.00mL; --- Pipette calibration curve drawn by the amount of manganese standard solution is to modify 0,1.00,2.50,5.00,7.50,10.00,12.50,15.00mL 0,1.00mL, 2.00mL, 4.00mL, 6.00mL, 8.00mL. This part is proposed by the China Iron and Steel Association. This section is under the jurisdiction of Metallurgical Industry Information Standards Institute. This section is drafted. Sinosteel Jilin Ferroalloy Co., Ltd. The main drafters of this section. high Yumin, Liu Bing, Wu Liyu, Cong Aven. This part of the standard replaces the previous editions are. --- GB/T 4701.4-1984; --- GB/T 4701.5-1984. Determination of manganese content ilmenite Arsenite - nitrite titration Periodate spectrophotometry Warning. Use of this section shall be a person experiences regular laboratory work. This section does not point out all possible security asked question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This section provides arsenite - spectrophotometric determination of nitrite titration and periodate ilmenite content of manganese. This section applies to the determination of manganese content in ferrotitanium. Wherein arsenite - Determination of nitrite titration (mass fraction). 1.00% - 4.00%; periodate spectrophotometric measurement range (mass fraction). 0.10% to 1.50%.

2 Normative references

The following documents contain provisions which, through reference in this section constitute provisions of this section. For dated references, subsequent All amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to reach an agreement under this section Research on whether to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 4010 alloy chemical analysis and preparation of samples 3 a method of arsenite - nitrite titration 3.1 Principle Sample with sulfuric acid, hydrochloric acid decomposition, fuming sulfuric acid heated to take, silver nitrate as a catalyst, plus ammonium persulfate boiling manganese oxide high manganese, With sodium arsenite - sodium nitrite titration standard solution titration. According to arsenite - sodium nitrite standard titration solution consumption is calculated manganese content. 3.2 Reagents and materials Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or its equivalent purity water. 3.2.1 nitrate, ρ1.42g/mL. 3.2.2 hydrochloric acid, 1 + 1. 3.2.3 sulfate, 1 + 3. 3.2.4 sodium chloride solution, 5g/L. 3.2.5 silver nitrate solution, 5g/L. 3.2.6 solution of ammonium persulfate, 250g/L, with the preparation can not be heated to dissolve. 3.2.7 mixed acid. water to 650mL, 100mL slowly added sulfuric acid (ρ1.84g/mL), was added 250mL nitric acid cooled (3.2.1), and mix. 3.2.8 Manganese standard solution 3.2.8.1 weighed 1.0000g of manganese metal (purity 99.9%), placed in 250mL beaker, add 20mL sulfuric acid (3.2.3), heating Dissolved, remove the cooled to room temperature and transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 1.00mg manganese. 3.2.8.2 Pipette 10.00mL manganese standard solution (3.2.8.1), placed in 100mL volumetric flask, dilute with water to volume, and mix. This solution Liquid 1mL containing 0.10mg manganese. 3.2.9 sodium arsenite - sodium nitrite standard titration solution, 0.02mol/L. 3.2.9.1 preparation. Weigh 0.5000g pure class distinctions trioxide dissolved in 20mL of sodium hydroxide solution (100g/L), and diluted with water ......

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