GB/T 6730.16-2016 English PDFUS$78.00 · In stock
Delivery: <= 1 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 6730.16-2016: Iron ores -- Determination of sulfur content -- Barium sulfate gravimetric method Status: Valid GB/T 6730.16: Historical versions
Basic dataStandard ID: GB/T 6730.16-2016 (GB/T6730.16-2016)Description (Translated English): Iron ores -- Determination of sulfur content -- Barium sulfate gravimetric method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: D31 Classification of International Standard: 73.060 Word Count Estimation: 10,185 Date of Issue: 2016-10-13 Date of Implementation: 2017-09-01 Older Standard (superseded by this standard): GB/T 6730.16-1986 Regulation (derived from): National Standard Notice No.1716 of 2016 Issuing agency(ies): General Administration of Quality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 GB/T 6730.16-2016: Iron ores -- Determination of sulfur content -- Barium sulfate gravimetric 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. Iron ores - Determination of sulfur content - Barium sulfate gravimetric method ICS 73.060.10 D31 National Standards of People's Republic of China Replace GB/T 6730.16-1986 Iron ore - Determination of sulfur content - Barium sulfate gravimetric method 2016-10-13 released 2017-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released ForewordGB/T 6730 "iron ore" is divided into dozens of parts. This part is part 16 of GB/T 6730. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part of the GB/T 6730.16-1986 "iron ore chemical analysis method barium sulfate gravimetric determination of sulfur". This part with GB/T 6730.16-1986 compared to the editorial changes, the main technical changes are as follows. --- the name changed to "iron ore sulfur content determination barium sulfate weight method"; - Added "warning" "normative reference document" "instrument" "test report" "Appendix B" "Appendix C" and so on; --- The range of measurement is changed from "0.300% ~ 5.00%" to "0.030% ~ 5.00%"; --- sample decomposition method by sodium peroxide - sodium carbonate melt decomposition modified to sodium carbonate - zinc oxide semi - melt decomposition; - leaching method by boiling leaching modified to electromagnetic stirring leaching; The inter-laboratory precision tests were carried out, and the "allowable difference" was replaced by the statistical repeatability r and the reproducibility limit R. This part is made by China Iron and Steel Industry Association. This section is headed by the National Commission on Standardization of Iron Ore and Direct Reductive Iron (SAC/TC317). This part of the main drafting unit. Changsha Mining and Metallurgy Research Institute limited liability company, Metallurgical Industry Information Standards Institute, Beilun immigration inspection Quarantine Bureau, Anshan Iron and Steel Group Mining Company. This part of the main drafters. Zhang Zhiyong, Li Zishang, statements, Chen Zibin, Lu Chunsheng, Zhou Haibo, Yang Lin, Chen Hehai, Chen Zhihua. This part of the previous version of the standard to replace the release of the situation. --- GB/T 6730.16-1986. Iron ore - Determination of sulfur content - Barium sulfate gravimetric method WARNING - Personnel using this section should have practical experience in formal laboratory work. This section does not indicate all possible security questions question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.1 ScopeThis part of GB/T 6730 specifies the determination of sulfur content by barium sulfate gravimetric method. This part is applicable to the determination of sulfur content in iron ore, iron concentrate, sinter and pellet. The determination range (mass fraction). 0.030% ~ 5.00%.2 normative reference documentsThe following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) - Part 1. General and definitions GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) - Part 2. Determination of standard measurement methods The basic method of sex and reproducibility GB/T 6682 Analytical laboratory water specifications and test methods Preparation of pre - dried samples for analysis of iron ore GB/T 6730.1 GB/T 6730.3 Methods for chemical analysis of iron ores - The gravimetric method for the determination of moisture content in samples Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170 GB/T 10322.1 Iron Ore Sampling and Sample Preparation3 principleThe sample was decomposed with a mixed solvent of sodium carbonate-zinc oxide, the sulfate ion was leached with water under electromagnetic stirring, and the hydroxide was removed by filtration, Carbonates and other precipitation. The filtrate in the dilute hydrochloric acid solution, adding barium chloride, so that the formation of sulfate sulfate barium sulfate precipitation. Burning, weighing, according to sulfur The quality of barium is calculated by the sulfur content.4 Reagents and MaterialsUnless otherwise stated, only the reagents identified as analytical reagents and those of Class 3 and Grade 3 in accordance with GB/T 6682 are used in the analysis. Water or deionized water or water equivalent to its purity. 4.1 Calcium carbonate. 4.2 sodium carbonate - zinc oxide mixed flux, sodium carbonate (grinding to the particle size of less than 125μm) and zinc oxide by mass ratio of 3. 2 mix. 4.3 hydrofluoric acid, ρ = 1.15 g/L. 4.4 Hydrochloric acid, 1 1. 4.5 Sulfuric acid, 1 1. 4.6 Hydrogen peroxide, 30% (mass fraction). 4.7 anhydrous ethanol. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 6730.16-2016_English be delivered?Answer: Upon your order, we will start to translate GB/T 6730.16-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically in 24 hours. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 6730.16-2016?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6730.16-2016 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
