GB/T 7739.6-2021 English PDFUS$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 7739.6-2021: Methods for chemical analysis of gold concentrates - Part 6: Determination of zinc content Status: Valid GB/T 7739.6: Historical versions
Basic dataStandard ID: GB/T 7739.6-2021 (GB/T7739.6-2021)Description (Translated English): Methods for chemical analysis of gold concentrates - Part 6: Determination of zinc content Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: D46 Word Count Estimation: 14,155 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 7739.6-2021: Methods for chemical analysis of gold concentrates - Part 6: Determination of zinc 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 gold concentrates - Part 6.Determination of zinc content ICS 73.060.99 CCSD46 National Standards of People's Republic of China Replace GB/T 7739.6-2007 Chemical analysis method of gold concentrate Part 6.Determination of the amount of zinc Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee Table of contentsForeword Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Method 1.Flame atomic absorption spectrometry 1 4.1 Principle 1 4.2 Reagents or materials 1 4.3 Equipment 2 4.4 Sample 2 4.5 Test Step 2 4.6 Test data processing 3 4.7 Precision 3 4.8 Test report 4 5 Method 2.Ethylenediaminetetraacetic acid disodium titration method 4 5.1 Principle 4 5.2 Reagents or materials 4 5.3 Instruments and equipment 5 5.4 Sample 6 5.5 Test Step 6 5.6 Test data processing 7 5.7 Precision 7 5.8 Test report 8 Appendix A (Normative) Determination of Cadmium by Flame Atomic Absorption Spectrometry 9 A.1 Scope 9 A.2 Principle 9 A.3 Reagents or materials 9 A.4 Instruments and equipment 9 A.5 Sample 9 A.6 Test procedure 10 A.7 Test data processing 10 A.8 Precision 11ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is Part 6 of GB/T 7739.GB/T 7739 "Methods for Chemical Analysis of Gold Concentrates" has published the following 14 parts. ---Part 1.Determination of the amount of gold and silver; ---Part 2.Determination of silver content by flame atomic absorption spectrometry; ---Part 3.Determination of arsenic content; ---Part 4.Determination of copper content; ---Part 5.Determination of lead content; ---Part 6.Determination of the amount of zinc; ---Part 7.Determination of iron content; ---Part 8.Determination of sulfur content; ---Part 9.Determination of carbon content; ---Part 10.Determination of the amount of antimony; ---Part 11.Determination of the amount of arsenic and bismuth; ---Part 12.Determination of arsenic, mercury, cadmium, lead and bismuth content by atomic fluorescence spectrometry; ---Part 13.Determination of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury content inductively coupled plasma atomic emission spectrometry; ---Part 14.Determination of the amount of thallium inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry. This document replaces GB/T 7739.6-2007 "Chemical Analysis Methods of Gold Concentrate Part 6.Determination of Zinc Content", and it is in line with GB/T 7739.6-2007 Compared with.2007, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The measurement range of the sample has been changed (see Chapter 1, Chapter 2 of the.2007 edition); b) Deleted the "allowable difference" requirement (see.2007 version of 2.7, 3.6); c) In Method 1, the digestion of the sample was changed from "hydrochloric acid, nitric acid" to "hydrochloric acid, nitric acid and perchloric acid" (see 4.1, 2.1 in.2007 edition); d) Added "repeatability" and "reproducibility" requirements (see 4.7, 5.7); e) In Method 2, the sample weight is changed from "0.30g" to "According to the zinc content in the sample, weigh the sample amount according to Table 4 to the nearest 0.0001g" See (5.4.2, 3.4.1 of the.2007 edition); f) In Method 2, the determination method (5.5.3) for samples with a lead content greater than 5% has been added. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the National Gold Standardization Technical Committee (SAC/TC379). Drafting organizations of this document. Changchun Gold Research Institute Co., Ltd., National Standard (Beijing) Inspection and Certification Co., Ltd., Shenzhen Gold Gold and Silver Jewelry Inspection and Research Center Co., Ltd., Beikuang Testing Technology Co., Ltd., Daye Nonferrous Design and Research Institute Co., Ltd., Henan Zhongyuan Gold Smelter Co., Ltd., Zijin Mining Group Co., Ltd., Yunnan Yuntong Zinc Industry Co., Ltd., Henan Yuguang Gold and Lead Co., Ltd., Yunnan Gold Mining Group Precious Metal Testing Co., Ltd., Shandong Zhaojin Group Co., Ltd. The main drafters of this document. Chen Yonghong, Guo Jiapeng, Lu Xingen, Meng Xianwei, Hong Bo, Zhang Yue, Li Yanji, Liu Liyuan, Li Tian, Tong Ling, Zhang Lijiu, Yang Pei, Wang Deyu, Luo Haixia, Fan Lixin, Xiao Zehong, Zeng Jing, Tian Jing, Jiang Yanshui, Xie Yanhong, Huang Chunqin, Gao Wenjian, Li Chunlin, Wang Haili, Li Yanfang, Li Li, Chen Xiaoke, Luan Zuochun, Gong Zaiyang. The previous versions of this document and the documents replaced are as follows. ---GB/T 7739.6-2007; ---This is the first revision.IntroductionAfter the raw ore has been processed by the sorting operation, its main components have been enriched in the concentrate, and the minor components of the ore or other associated metals have also been obtained. When it comes to recycling, GB/T 7739 "Gold Concentrate Chemical Analysis Method" aims to help gold industrial and mining enterprises accurately understand the main components and impurities of gold concentrate The content is conducive to optimizing the control parameters of the dressing and smelting process, accurately controlling the consumption of reagents, reducing the interference of impurity elements on the smelting and purification process, and improving the The comprehensive recovery rate of valuable elements can contribute to the efficient recycling of resources of the entire gold industry, sustainable green and healthy development, and smart mines. Construction provides technical support. GB/T 7739 is composed of 14 parts. ---Part 1.Determination of the amount of gold and silver. The purpose is to specify the fire assay gravimetric method and activity for the determination of the amount of gold and silver in the gold concentrate Carbon enrichment-flame atomic absorption spectrometry and activated carbon enrichment-iodometry and the applicable measurement range of each method. ---Part 2.Determination of the amount of silver flame atomic absorption spectrometry. The purpose is to specify the flame atom for the determination of silver content in gold concentrate Absorption spectroscopy and applicable measurement range. ---Part 3.Determination of arsenic content. The purpose is to specify the silver diethyldithiocarbamate spectrophotometer for the determination of arsenic in gold concentrate Degree method and potassium dichromate titration method and the applicable measurement range of each method. ---Part 4.Determination of copper content. The purpose is to specify flame atomic absorption spectrometry and thiosulfuric acid for the determination of copper in gold concentrate Sodium titration method and the applicable measurement range of each method. ---Part 5.Determination of lead content. The purpose is to specify flame atomic absorption spectrometry and ethylenediamine tetrachloride for the determination of lead in gold concentrate. The disodium acetate titration method and the applicable measurement range of each method. ---Part 6.Determination of the amount of zinc. The purpose is to specify flame atomic absorption spectrometry and ethylenediamine tetrachloride for the determination of zinc in gold concentrate. The disodium acetate titration method and the applicable measurement range of each method. ---Part 7.Determination of iron content. The purpose is to specify the potassium dichromate titration method for the determination of iron in gold concentrates and the applicable determination Scope. ---Part 8.Determination of sulfur content. The purpose is to specify the barium sulfate gravimetric method and the combustion-acid-base titration method for the determination of sulfur content in gold concentrate And the applicable measurement range of each method. ---Part 9.Determination of carbon content. The purpose is to specify the ethanol-ethanolamine-potassium hydroxide titration method for the determination of carbon in gold concentrates and Applicable measurement range. ---Part 10.Determination of the amount of antimony. The purpose is to specify the cerium sulfate titration method and the hydride generation method for the determination of antimony in gold concentrates. Sub-fluorescence spectroscopy and the applicable measurement range of each method. ---Part 11.Determination of the amount of arsenic and bismuth. The purpose is to specify the hydride generation for the determination of the amount of arsenic and bismuth in the gold concentrate-atom Fluorescence spectroscopy and applicable measurement range. ---Part 12.Determination of arsenic, mercury, cadmium, lead and bismuth content by atomic fluorescence spectrometry. The purpose is to regulate arsenic, mercury, cadmium, Hydride generation-atomic fluorescence spectrometry for the determination of lead and bismuth content and the applicable measurement range. --- Part 13.Determination of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury content inductively coupled plasma atomic emission spectrometry. Aim at Inductively coupled plasma atomic emission spectrometry for the determination of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury in gold concentrates and its application The measurement range. ---Part 14.Determination of the amount of thallium inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry. Item It is the inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry for the determination of thallium in gold concentrate Method and the applicable measurement range of each method. Chemical analysis method of gold concentrate Part 6.Determination of the amount of zinc1 ScopeThis document specifies the method for determining the amount of zinc in gold concentrate. This document is applicable to the determination of zinc content in gold concentrates. Method 1 measuring range. 0.10%~2.00%; method 2 measuring range. >2.00%~ 30.00%.2 Normative referencesThe contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 17433 Basic terminology for chemical analysis of metallurgical products3 Terms and definitionsThe terms and definitions defined in GB/T 17433 apply to this document. 3.1 Laboratorysample A sample prepared to be sent to a laboratory for inspection or testing. [Source. GB/T 17433-2014,2.3.2.1] 3.2 Testsample A sample that is further prepared from laboratory samples and can be weighed. [Source. GB/T 17433-2014, 2.3.2.2] 3.3 Sample testportion A certain amount of sample weighed for inspection or observation. [Source. GB/T 17433-2014, 2.3.2.3] 4 Method 1.Flame atomic absorption spectrometry 4.1 Principle The sample is dissolved in hydrochloric acid, nitric acid, and perchloric acid. In dilute hydrochloric acid medium, at 213.9nm wavelength of flame atomic absorption spectrometer, The gas-acetylene flame measures the absorbance of zinc. Calculate the zinc content according to the standard curve method. 4.2 Reagents or materials Unless otherwise specified, only use reagents and distilled or deionized water or equivalent purity water confirmed to be analytically pure in the analysis. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7739.6-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 7739.6-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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