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GB/T 14352.11-2010 English PDF

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GB/T 14352.11-2010: Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 11: Determination of bismuth content
Status: Valid

GB/T 14352.11: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 14352.11-2010English139 Add to Cart 3 days [Need to translate] Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 11: Determination of bismuth content Valid GB/T 14352.11-2010
GB/T 14352.11-1993English199 Add to Cart 2 days [Need to translate] Methods for chemical analysis of tungsten ores and molybdenum ores. Determination of bismuth content. Flame atomic absorption spectrometric method Obsolete GB/T 14352.11-1993

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Basic data

Standard ID GB/T 14352.11-2010 (GB/T14352.11-2010)
Description (Translated English) Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 11: Determination of bismuth content
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D40
Classification of International Standard 73.060
Word Count Estimation 6,656
Date of Issue 2010-11-10
Date of Implementation 2011-02-01
Older Standard (superseded by this standard) GB/T 14352.11-1993
Quoted Standard GB/T 6682; GB/T 14505
Regulation (derived from) National Standard Approval Announcement 2010 No.8 (Total No.163)
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 tungsten ores, determination of the amount of molybdenum ore in Peru. This section applies to tungsten ores, determination of bismuth content of molybdenum ore. Measuring range: 0. 02% -1% of bismuth.

GB/T 14352.11-2010: Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 11: Determination of bismuth content


---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.
Methods for chemical analysis of tungsten ores and molybdenum ores Part 11. Determination of bismuth content ICS 73.060 D40 National Standards of People's Republic of China Replacing GB/T 14352.11-1993 Tungsten ores and molybdenum ores - Methods for chemical analysis Part 11. Determination of the amount of bismuth Part 11. Determinationofbismuthcontent Issued on. 2010-11-10 2011-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 14352 "tungsten ores and molybdenum ores chemical analysis methods," a total of 18 parts. --- Part 1. Determination of tungsten; --- Part 2. Determination of molybdenum; --- Part 3. Determination of copper content; --- Part 4. Determination of lead content; --- Part 5. Determination of the amount of zinc; --- Part 6. Determination of cadmium content; --- Part 7. Determination of cobalt content; --- Part 8. Determination of nickel content; --- Part 9. Determination of sulfur content; --- Part 10. Determination of arsenic content; --- Part 11. Determination of the amount of bismuth; --- Part 12. determination of silver; --- Part 13. Determination of tin; --- Part 14. Determination of gallium; --- Part 15. Determination of germanium content; --- Part 16. Determination of the amount of selenium; --- Part 17. Determination of tellurium content; --- Part 18. Determination of the amount of rhenium. This section GB/T 14352 Part 11. This Part replaces GB/T 14352.11-1993 "tungsten ores and molybdenum ores - Methods for chemical analysis by flame atomic absorption spectrophotometry Given bismuth content. " Section compared with the GB/T 14352.11-1993, major changes in the following. --- Increased alert, warnings; --- Modify the sample drying temperature. Appendix A of this section is an informative annex. This section presents the People's Republic of China Ministry of Land Resources. This part of the National Standardization Technical Committee under the jurisdiction of Land and Resources. This section is responsible for drafting. National geology test center. This section is drafted. Jiangsu Provincial Institute of Geological Survey (Ministry of Land and Mineral Resources Supervision and Testing Center, Nanjing). The main drafters of this section. Jiang Ye, high filial ceremony. This part of the standard replaces the previous editions are. --- GB/T 14352.11-1993. Tungsten ores and molybdenum ores - Methods for chemical analysis Part 11. Determination of the amount of bismuth Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that 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

This section GB/T 14352 provides for tungsten ores and determination of bismuth content of molybdenum ore. This Part applies to tungsten ores and determination of bismuth content of molybdenum ore. Measuring range. 0.02% to 1% bismuth.

2 Normative references

The following documents contain provisions which, through reference GB/T 14352 in this section constitute provisions of this section. 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. Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 14505 method for chemical analysis of rocks and ores General rules and regulations Principle 3 Sample with aqua regia decomposed in hydrochloric acid medium, using air - acetylene flame atomic absorption spectrophotometer wavelength at 223.1nm, Bismuth measuring absorbance, calculate the amount of bismuth.

4 Reagents

Unless otherwise stated in this section are consistent with the use of analytical reagent and GB/T 6682 analytical laboratory use in the analysis. 4.1 hydrochloride (ρ1.19g/mL). Nitrate 4.2 (ρ1.42g/mL). 4.3 hydrochloride (19). 4.4 aqua regia (1 1). 75mL hydrochloric acid (4.1) plus 25mL of nitric acid (4.2) was mixed with 100mL of water, using now. 4.5 Bismuth standard solution. a) bismuth standard stock solution [ρ (Bi) = 1.0mg/mL]. Weigh 1.0000g bismuth (99.99%), placed in 100mL beaker Added 20mL of nitric acid (4.2), dissolved by heating and transferred to 1000mL volumetric flask, dilute to the mark with hydrochloric acid (4.3), Shake; b) Bismuth standard solution [ρ (Bi) = 100.0μg/mL]. lessons 50.00mL bismuth standard stock solution [4.5a)] in 500mL capacity Flask, dilute to the mark with hydrochloric acid (4.3) and shake.

5 Instruments

5.1 Analytical balance. three, a sense of the amount of 0.1mg. 5.2 atomic absorption spectrophotometer, with a bismuth hollow cathode lamp.

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