GB/T 6730.67-2009 English PDF

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GB/T 6730.67-2009: Iron ores -- Determination of arsenic content -- Hydride generation atomic absorption spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6730.67-2009	279	Add to Cart	3 days	Iron ores -- Determination of arsenic content -- Hydride generation atomic absorption spectrometric method	Valid

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Basic data

Standard ID: GB/T 6730.67-2009 (GB/T6730.67-2009)
Description (Translated English): Iron ores -- Determination of arsenic content -- Hydride generation atomic absorption spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D31
Classification of International Standard: 73.060.10
Word Count Estimation: 12,184
Date of Issue: 2009-10-30
Date of Implementation: 2010-05-01
Quoted Standard: GB/T 6682; GB/T 6730.1; GB/T 8170; GB/T 10322.1; GB/T 12806; GB/T 12808
Regulation (derived from): National Standard Approval Announcement 2009 No.12 (Total No.152)
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 occurrence hydride-Determination of arsenic content in ore atomic absorption spectrometry method. This section applies to natural iron ore, iron ore concentrate and build blocks, including the determination of arsenic in the sintered product. Measuring range (mass fraction): 0. 00005% to 0. 1 %.

GB/T 6730.67-2009: Iron ores -- Determination of arsenic content -- Hydride generation atomic absorption spectrometric method

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Iron ores.Determination of arsenic content.Hydride generation atomic absorption spectrometric method ICS 73.060.10 D31 National Standards of People's Republic of China Determination of Arsenic in Iron Ore Hydride generation atomic absorption spectrometry Posted 2009-10-30 2010-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 6730 Appendix A of this part of the normative appendix, Appendix B, Appendix C and Appendix D is an informative annex. This part is proposed by the China Iron and Steel Association. This part of the National Standardization Technical Committee reduced iron ore and direct centralized. This part mainly drafted by. Ningbo Inspection and Quarantine Institute of Science and Technology, Ningbo Iron & Steel Co., Ltd., Tianjin CIQ, Metallurgical Industry Information Standards Institute, Shenzhen Entry-Exit Inspection and Quarantine Shengsi, PerkinElmer Shanghai company, Warri An Chinese companies. The main drafters of this section. pine should pay slowly, forest edge, Wang Bo, Wei Hongbing, Gu Songhai, Chenzi Bin, Wang Louming, Han Jian. Determination of Arsenic in Iron Ore Hydride generation atomic absorption spectrometry Warning. Use GB/T 6730 this part of the staff should have regular laboratory work experience. This section does not indicate all possible Security issues. 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 6730 This section provides by hydride generation - Determination of arsenic content in iron ore by atomic absorption spectrometry methods. This section applies to natural iron ore, iron ore and agglomeration, including the determination of arsenic content in the sintered product. Measurement range (mass fraction). 0.00005% to 0.1%.

2 Normative references

The following documents contain provisions which, through reference to GB/T 6730 to the present, constitute provisions of this section. For dated references, All subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encourage an agreement in accordance with this standard Parties to study the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 6730.1 Methods for chemical analysis of iron pre-dried sample was prepared using (GB/T 6730.1-1986, idt ISO 7764.1998) GB/T 8170 repair value expressed about the rules and limit values and judgment GB/T 10322.1 iron ore sampling and sample preparation method (GB/T 10322.1-2000, idt ISO 3082.1998) GB/T 12806 Laboratory glassware single marking flask (GB/T 12806-1991, neq ISO 1042. 1983) GB/T 12808 standard laboratory glassware single line pipette (GB/T 12808-1991, neq ISO 648. 1977) Principle 3 Sample was dissolved in nitric acid and hydrochloric acid, evaporated to dryness and dissolved in dilute hydrochloric acid, sodium carbonate and sodium peroxide residue alkali fusion process, the use of the test solution Potassium iodide pre reductant, ascorbic acid do masking agent, acidity regulator and appropriately diluted, reduction with sodium borohydride, by hydride generator Arsine, with the carrier gas into the quartz tube atomizer, the determination of arsenic content at a wavelength of 193.7nm.

4 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical reagents. 4.1 sodium peroxide. 4.2 anhydrous sodium carbonate. 4.3 sodium hydroxide. 4.4 of sodium borohydride. 4.5 hydrochloric acid, ρ1.19g/mL, pure class distinctions. 4.6 nitric acid, ρ1.42g/mL. HCl 4.7, 1 + 1. 4.8 HCl, 2 + 98. 4.9 hydrochloric acid, 12 + 88. 4.10 HCl, 1 + 9. ......

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