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GB/T 4333.4-2007 English PDF

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GB/T 4333.4-2007: Ferrosilicon -- Determination of aluminium content -- The chrome azurol S spectrophotometric method, the EDTA titrimetric method and the flame atomic absorption spectrometric method
Status: Valid

GB/T 4333.4: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 4333.4-2007English319 Add to Cart 3 days [Need to translate] Ferrosilicon -- Determination of aluminium content -- The chrome azurol S spectrophotometric method, the EDTA titrimetric method and the flame atomic absorption spectrometric method Valid GB/T 4333.4-2007
GB/T 4333.4-1988English199 Add to Cart 2 days [Need to translate] Methods for chemical analysis of ferrosilicon--The chromazurol S photometric method for the determination of aluminium content Obsolete GB/T 4333.4-1988
GB/T 4333.4-1984EnglishRFQ ASK 3 days [Need to translate] Methods for chemical analysis of ferrosilicon--The chromazurol S photometric method for the determination of aluminium content Obsolete GB/T 4333.4-1984

PDF similar to GB/T 4333.4-2007


Standard similar to GB/T 4333.4-2007

GB/T 5686.2   GB/T 3654.3   GB/T 4336   GB/T 4333.2   GB/T 4333.8   GB/T 4333.1   

Basic data

Standard ID GB/T 4333.4-2007 (GB/T4333.4-2007)
Description (Translated English) Ferrosilicon -- Determination of aluminium content -- The chrome azurol S spectrophotometric method, the EDTA titrimetric 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 12,193
Date of Issue 2007-09-11
Date of Implementation 2008-02-01
Older Standard (superseded by this standard) GB/T 4333.4-1988; GB/T 4333.5-1997; GB/T 4333.9-1988
Quoted Standard GB/T 4010
Regulation (derived from) China National Standard Approval Announcement2007 No.11 (Total No.111)
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 ferrosilicon aluminum content-Chromazurol S spectrophotometry, EDTA titration and flame atomic absorption spectrometry. Warning-Use this section personnel should experience regular laboratory work. This section does not indicate that all possible safety problems. Users are responsible for taking appropriate safety and health practices and to ensure compliance with the relevant provisions of the conditions of the country. This section applies to the determination of aluminum content in ferrosilicon. Chromazurol S spectrophotometric measurement range (mass fraction): 0. 10% ~ 0. 60%, EDTA titration range (mass fraction): 0. 60%-5. 00%, Flame Atomic Absorption Spectrometry range (mass fraction)

GB/T 4333.4-2007: Ferrosilicon -- Determination of aluminium content -- The chrome azurol S spectrophotometric method, the EDTA titrimetric 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.
Ferrosilicon. Determination of aluminium content. The chromazurol S spectrophotometric method, the EDTA titrimetric method and the flame atomic absorption spectrometric method ICS 77.100 H11 National Standards of People's Republic of China Replacing GB/T 4333.4-1988, GB/T 4333.5-1997, GB/T 4333.9-1988 Ferrosilicon aluminum content Azure S spectrophotometric determination of chromium Spectrophotometry, EDTA titration and Flame Atomic Absorption Spectrometry Posted 2007-09-11 2008-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 4333 This section includes the three measuring Chromium Azure S Spectrophotometry, EDTA titration and flame atomic absorption spectrometry Analysis ferrosilicon aluminum content. This Part replaces GB/T 4333.4-1988 "Methods for chemical analysis of ferrosilicon chrome azure S Spetrophotometry Given the amount of aluminum ", GB/T 4333.5-1997" Determination of aluminum content "and GB/T 4333.9-1988 Methods for chemical analysis of ferrosilicon EDTA volumetric method "Methods for chemical analysis of ferrosilicon flame atomic absorption spectrometric method for the determination of aluminum content." This portion of the GB/T 4333.4-1988, GB/T 4333.5-1997 and GB/T 4333.9-1988 comparison, in addition to the allowable difference portion Edit points, mainly on the GB/T 4333.5-1997 made the following technical modifications. --- The amount of the sample by the 0.5000g, 0.2500g, 0.1500g adjusted to 0.80g and 0.50g; Zinc Standard Solution --- titration using xylenol orange as indicator Cu-PAN instead of copper as an indicator of the standard titration solution system; --- Using sodium carbonate - boric acid flux instead of sodium bisulfate acid insoluble residue decomposition; --- Using hydrochloric acid - hexamethylenetetramine and alkali secondary separation interference, instead of methyl isobutyl ketone extraction of iron, aluminum and copper precipitate ammonium benzoate Ferron separation separation of titanium; --- Using hydrochloric acid - hexamethylenetetramine instead of acetic acid - ammonium acetate buffer solution as the titration system. This part is proposed by the China Iron and Steel Association. This section is under the jurisdiction of Metallurgical Industry Information Standards Institute. This standard was drafted. Sichuan Investment Emei Ferroalloy (Group) Co., Ltd. The main drafters of this section. Tang Hua Ying, Wu Cuiping, Xuexiu Ping, Fang Yan. This part of the standard replaces the previous editions are. --- GB/T 4333.4-1984, GB/T 4333.4-1988; --- GB/T 4333.5-1984, GB/T 4333.5-1997; --- GB/T 4333.9-1988. Ferrosilicon aluminum content Azure S spectrophotometric determination of chromium Spectrophotometry, EDTA titration and 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

GB/T 4333 provisions of this part of the chromium azure S spectrophotometric determination of silicon EDTA titration and flame atomic absorption spectrometry Iron aluminum content. This section applies to the determination of ferrosilicon aluminum content. Chromium Azure S Spectrophotometry range (mass fraction). 0.10% to 0.60%; EDTA titration range (mass fraction). 0.60% - 5.00%; flame atomic absorption spectrometry range (mass fraction). 0.05% to 5.00%.

2 Normative references

The following documents contain provisions which, through reference to GB/T 4333 this section, constitute provisions of this part. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement 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 Method One. Chromium Azure S Spectrophotometry 3.1 Principle Sample with nitric acid, hydrofluoric acid dissolution, perchloric acid smoke, then dilute hydrochloric acid medium to precipitate cupferron iron, vanadium, titanium and other elements. again At a pH (5.8 ± 0.4) in hydrochloric acid solution with hexamethylenetetramine buffer solution, aluminum and chrome azure S purple envelope and was formed, Spectrophotometer 550nm wavelength measured absorbance. 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 sodium bisulfate, solid. 3.2.2 nitrate, ρ1.42g/mL. 3.2.3 perchloric acid, ρ1.67g/mL. 3.2.4 hydrofluoric acid, ρ1.15g/mL. 3.2.5 hydrochloric acid, ρ1.19g/mL. 3.2.6 hydrochloric acid, 1 + 9. 3.2.7 hydrochloric acid, 20 + 1. 3.2.8 hydrochloric acid, 60 + 1. 3.2.9 hydrochloric acid, 99 + 1. 3.2.10 ammonia, 1 + 9, stored in a plastic bottle. 3.2.11 ammonium fluoride solution, 20g/L. Stored in plastic bottles. 3.2.12 hexamethylenetetramine solution, 200g/L. Weigh 200g of hexamethylenetetramine dissolved in water, dilute to 1L, stored in plastic bottles.

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