GB/T 4701.3-2009 English PDF

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GB/T 4701.3-2009: Ferrotitanium -- Determination of copper content -- The DDTC photometric method and the flame atomic absorption spectrometric method
Status: Valid

GB/T 4701.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4701.3-2009	189	Add to Cart	3 days	Ferrotitanium -- Determination of copper content -- The DDTC photometric method and the flame atomic absorption spectrometric method	Valid
GB/T 4701.3-1984	199	Add to Cart	2 days	Methods for chemical analysis of ferrotitanium--The DDTC photometric method for the determination of copper content	Obsolete

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Basic data

Standard ID: GB/T 4701.3-2009 (GB/T4701.3-2009)
Description (Translated English): Ferrotitanium -- Determination of copper content -- The DDTC photometric method and the flame atomic absorption spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H11
Classification of International Standard: 77.100
Word Count Estimation: 8,820
Date of Issue: 2009-07-08
Date of Implementation: 2010-04-01
Older Standard (superseded by this standard): GB/T 4701.3-1984
Quoted Standard: GB/T 4010
Regulation (derived from): National Standard Approval Announcement 2009 No.9 (Total No.149)
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 determination of copper content of iron in iron copper reagent photometric and flame atomic absorption spectrometry. This section applies to the determination of the steel content in ilmenite. Measuring range (mass fraction): 0. 10% to 1. 00 %.

GB/T 4701.3-2009: Ferrotitanium -- Determination of copper content -- The DDTC photometric method and the flame atomic absorption spectrometric 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 copper content.The DDTC photometric method and the flame atomic absorption spectrometric method ICS 77.100 H11 National Standards of People's Republic of China Replacing GB/T 4701.3-1984 Determination of copper content of ilmenite Copper reagent method and the flame atomic absorption spectrometry Posted 2009-07-08 2010-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This Part replaces GB/T 4701.3-1984 "Methods for chemical analysis of ferrotitanium copper reagent spectrophotometric determination of copper content." This portion of the GB/T 4701.3-1984 comparison, the main changes are. --- Additional flame atomic absorption spectrometry. This part is proposed by the China Iron and Steel Association. This part of pig iron and ferroalloy by the National Standardization Technical Committee. This section is drafted. Sichuan Investment Emei Ferroalloy (Group) Co., Ltd. The main drafters of this section. should Tang Hua, Fang Yan, Zhang Yingxia. This part of the standard replaces the previous editions are. --- GB/T 4701.3-1984. Determination of copper content of ilmenite Copper reagent method and the flame atomic absorption spectrometry Warning --- Use 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 specifies the determination of copper content of ilmenite copper reagent method and the flame atomic absorption spectrometry. This section applies to the determination of copper content in the ilmenite. Measurement range (mass fraction). 0.10% to 1.00%.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement Whether 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 copper reagent spectrophotometric method

3.1 Principle Sample with nitric acid, hydrofluoric acid dissolved, add citric acid masking iron, titanium and other interfering elements in ammonia solution, add diethyl dithiocarbamate Sodium (DDTC) with brown colloidal solution form insoluble copper, gum arabic solution was added after the spectrophotometer at a wavelength of 460nm, measured The amount of its absorbance on the calibration curve have to check the quality of copper, calculated content of copper in the sample. 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 urea, solid. 3.2.2 hydrofluoric acid, ρ1.15g/mL. 3.2.3 nitrate, 2 + 1. 3.2.4 ammonia, 1 + 1. 3.2.5 boric acid solution, 50g/L. 3.2.6 ammonium citrate solution, 500g/L. 3.2.7 DDTC solution, 2g/L. 3.2.8 gum arabic solution, 10g/L. Weigh 2g gum arabic, dissolved in 100mL of hot water, joined a fine thymol, with removal After fat cotton filter, diluted with water to 200mL, and mix. 3.2.9 copper standard solution. Weigh 0.5000g copper (Cu≥99.9%), placed in a beaker of 200mL, 30mL of nitric acid was added (3 + 5), dissolved by heating to boil and removing nitrogen oxides, was cooled to room temperature, transferred to 1000mL volumetric flask, dilute to volume with water, mix uniform. This solution 1mL copper 500μg. 3.3 Instrument Analysis using common laboratory instruments. 3.4 Sampling and Preparation In accordance with the provisions of GB/T 4010 will be sampling and sample preparation, the sample should be adopted 0.125mm sieve. ......

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