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GB/T 14353.15-2014 English PDF

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GB/T 14353.15-2014: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 15: Determination of selenium content
Status: Valid

GB/T 14353.15: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 14353.15-2014English229 Add to Cart 3 days [Need to translate] Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 15: Determination of selenium content Valid GB/T 14353.15-2014
GB/T 14353.15-1993English199 Add to Cart 2 days [Need to translate] Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of selenium content. 3, 3-diaminobenzidine photometric method Obsolete GB/T 14353.15-1993

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Basic data

Standard ID GB/T 14353.15-2014 (GB/T14353.15-2014)
Description (Translated English) Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 15: Determination of selenium content
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D40
Classification of International Standard 73.060
Word Count Estimation 10,157
Date of Issue 12/5/2014
Date of Implementation 4/1/2015
Older Standard (superseded by this standard) GB/T 14353.15-1993
Quoted Standard GB/T 6682; GB/T 14505
Regulation (derived from) Announcement of Newly Approved National Standards 2014 No. 27
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 copper ore, determination of selenium content of lead ores and zinc ores atomic fluorescence spectrometry. This Standard is applicable to copper ore, lead ore and zinc ore Se atomic fluorescence spectrometry. Measuring range: 0. 06

GB/T 14353.15-2014: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 15: Determination of selenium content


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Methods for chemical analysis of copper ores, lead ores and zinc ores Part 15. Determination of selenium content ICS 73.060 D40 National Standards of People's Republic of China Replacing GB/T 14353.15-1993 Copper ores lead ores and zinc ores - Methods for chemical analysis Part 15. Determination of Selenium Methodsforchemicalanalysisofcopperores, leadoresandzincores- Part 15. Determinationofseleniumcontent Issued on. 2014-12-05 2015-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 14353 "copper ores lead ores and zinc ores chemical analysis method" is divided into 18 parts. --- Part 1. Determination of copper content; --- Part 2. Determination of lead content; --- Part 3. Determination of the amount of zinc; --- Part 4. Determination of cadmium content; --- Part 5. Determination of nickel content; --- Part 6. Determination of cobalt content; --- Part 7. Determination of arsenic content; --- Part 8. Determination of the amount of bismuth; --- Part 9. Determination of molybdenum; --- Part 10. Determination of tungsten; --- Part 11. determination of silver; --- Part 12. Determination of sulfur content; --- Part 13. the amount of gallium, indium amount, the amount of thallium, tungsten and determination of the amount of molybdenum content; --- Part 14. Determination of germanium content; --- Part 15. Determination of the amount of selenium; --- Part 16. Determination of tellurium content; --- Part 17. Determination of the amount of thallium; --- Part 18. the amount of copper, lead content, the amount of zinc, cobalt and nickel contents. This section GB/T Part of 1,514,353. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 14353.15-1993 "copper ores lead ores and zinc ores - Methods for chemical analysis of 3,3-diaminobenzidine light Determination of selenium content "of the law. Section compared with the GB/T 14353.15-1993, major changes in the following. --- Increased analysis "Atomic Fluorescence Spectrometry copper ores lead ores and zinc ores selenium quantity"; --- Remove the analysis methods, "spectrophotometric determination of 3,3-diaminobenzidine selenium quantity"; --- Information about the "warning" Content. After standard name, marked a dangerous general tips; --- In the "precision", increasing the precision of the relevant statements (see Chapter 9); --- Increased Chapter 6, "specimen" and Chapter 10, "Quality Assurance and Control"; --- Added Appendix B "between laboratory test results statistical processing of data," and references. This section presents the People's Republic of China Ministry of Land Resources. This part of the National Standardization Technical Committee on Land Resources (SAC/TC93) centralized. This section is drafted. the Shaanxi Provincial Institute of Experimental Geology and Mineral Resources. The main drafters of this section. Tian Ping, Dong Yani, Hu Jianping, Mou is the warehouse. This part of the standard replaces the previous editions are. --- GB/T 14353.15-1993. Copper ores lead ores and zinc ores - Methods for chemical analysis Part 15. Determination of Selenium Warning. Use of this section a person shall be regular laboratory work experience. 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

GB/T 14353 provisions of this part of the copper ore, determination of selenium content of lead ores and zinc ores - Atomic Fluorescence Spectrometry. This section applies to copper ores, lead ores and zinc ores - Determination of the amount of selenium - Atomic Fluorescence Spectrometry. Measuring range. 0.06μg/g ~ 100μg/g of selenium. The detection limit. selenium 0.020μg/g.

2 Normative references

The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. 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 Aiskaer sample using reagents (sodium carbonate and zinc oxide) semi-melting method decomposition, boiling water extract, selenium and other coexisting ion separation. in 30% hydrochloric acid medium, selenium and potassium borohydride reaction of hydride gas, argon gas as a carrier to import electric quartz furnace, the flame of hydrogen radicals And hydride collisional dissociation into free atoms, selenium high intensity hollow cathode lamp as the light source, using atomic fluorescence spectrometry determination of selenium fluorescent light Spectral intensity calculating the amount of selenium atoms in a sample based on the fluorescence intensity.

4 Reagents

Unless otherwise indicated in the analysis are consistent with the use of analytical reagents and GB/T 6682 water analytical laboratory. 4.1 hydrochloric acid (ρ = 1.19g/mL). 4.2 hydrochloride (11). 4.3 hydrochloride (19). Ethanol 4.4 [φ (CH3CH2OH) = 95%]. 4.5 potassium borohydride solution [ρ (KBH4) = 30g/L]. Weigh 30g potassium borohydride, stirring to dissolve potassium hydroxide solution [ρ (KOH) = 5g/L], and diluted to 1000mL, shake, use Temporary formulated. Ferric chloride solution 4.6 [ρ (Fe) = 25mg/mL]. Weigh 60.9g of ferric chloride (FeCl3 · 6H2O) in 250mL beaker, add 40mL of hydrochloric acid (4.3) dissolved in water and transferred 500mL volumetric flask, and dilute to volume, mix and set aside.

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